21 | ![]()
22 |
23 | 10 | 11 |
12 | 13 | 14 | 31 | 32 | -------------------------------------------------------------------------------- /src/test/java/com/nowcoder/community/QuartzTests.java: -------------------------------------------------------------------------------- 1 | package com.nowcoder.community; 2 | 3 | import org.junit.Test; 4 | import org.junit.runner.RunWith; 5 | import org.quartz.JobKey; 6 | import org.quartz.Scheduler; 7 | import org.quartz.SchedulerException; 8 | import org.springframework.beans.factory.annotation.Autowired; 9 | import org.springframework.boot.test.context.SpringBootTest; 10 | import org.springframework.test.context.ContextConfiguration; 11 | import org.springframework.test.context.junit4.SpringRunner; 12 | 13 | @RunWith(SpringRunner.class) 14 | @SpringBootTest 15 | @ContextConfiguration(classes = CommunityApplication.class) 16 | public class QuartzTests { 17 | 18 | @Autowired 19 | private Scheduler scheduler; 20 | 21 | @Test 22 | public void testDeleteJob() { 23 | try { 24 | boolean result = scheduler.deleteJob(new JobKey("alphaJob", "alphaJobGroup")); 25 | System.out.println(result); 26 | } catch (SchedulerException e) { 27 | e.printStackTrace(); 28 | } 29 | } 30 | 31 | } 32 | -------------------------------------------------------------------------------- /src/test/java/com/nowcoder/community/SensitiveTests.java: -------------------------------------------------------------------------------- 1 | package com.nowcoder.community; 2 | 3 | import com.nowcoder.community.util.SensitiveFilter; 4 | import org.junit.Test; 5 | import org.junit.runner.RunWith; 6 | import org.springframework.beans.factory.annotation.Autowired; 7 | import org.springframework.boot.test.context.SpringBootTest; 8 | import org.springframework.test.context.ContextConfiguration; 9 | import org.springframework.test.context.junit4.SpringRunner; 10 | 11 | @RunWith(SpringRunner.class) 12 | @SpringBootTest 13 | @ContextConfiguration(classes = CommunityApplication.class) 14 | public class SensitiveTests { 15 | 16 | @Autowired 17 | private SensitiveFilter sensitiveFilter; 18 | 19 | @Test 20 | public void testSensitiveFilter() { 21 | String text = "这里可以赌博,可以嫖娼,可以吸毒,可以开票,哈哈哈!"; 22 | text = sensitiveFilter.filter(text); 23 | System.out.println(text); 24 | 25 | text = "这里可以☆赌☆博☆,可以☆嫖☆娼☆,可以☆吸☆毒☆,可以☆开☆票☆,哈哈哈!"; 26 | text = sensitiveFilter.filter(text); 27 | System.out.println(text); 28 | } 29 | 30 | } 31 | -------------------------------------------------------------------------------- /src/main/resources/static/js/letter.js: -------------------------------------------------------------------------------- 1 | $(function(){ 2 | $("#sendBtn").click(send_letter); 3 | $(".close").click(delete_msg); 4 | }); 5 | 6 | function send_letter() { 7 | $("#sendModal").modal("hide"); 8 | 9 | var toName = $("#recipient-name").val(); 10 | var content = $("#message-text").val().replace(/\r\n/g, '').replace(/\n/g, '
').replace(/\s/g, ' '); 11 | $.post( 12 | CONTEXT_PATH + "/letter/send", 13 | {"toName":toName,"content":content}, 14 | function(data) { 15 | data = $.parseJSON(data); 16 | if(data.code == 0) { 17 | $("#hintBody").text("发送成功!"); 18 | } else { 19 | $("#hintBody").text(data.msg); 20 | } 21 | /*过两秒，提示框隐藏掉*/ 22 | $("#hintModal").modal("show"); 23 | setTimeout(function(){ 24 | $("#hintModal").modal("hide"); 25 | location.reload(); 26 | }, 2000); 27 | } 28 | ); 29 | } 30 | 31 | function delete_msg() { 32 | // TODO 删除数据 33 | $(this).parents(".media").remove(); 34 | } -------------------------------------------------------------------------------- /src/main/resources/static/js/forget.js: -------------------------------------------------------------------------------- 1 | $(function(){ 2 | $(".feach-btn").click(feach); 3 | }); 4 | 5 | function feach() { 6 | var btn = this; 7 | var count = 60; 8 | const countDown = setInterval(() => { 9 | if(count===60){ 10 | $.post( 11 | CONTEXT_PATH + "/user/sendCode?p="+Math.random(), 12 | {"email":$("#email").val()}, 13 | function(data) { 14 | data = $.parseJSON(data); 15 | if(data.code != 0) { 16 | alert(data.msg); 17 | } 18 | } 19 | ); 20 | } 21 | if (count === 0) { 22 | $(btn).text('重新发送').removeAttr('disabled'); 23 | $(btn).css({ 24 | background: '#ff9400', 25 | color: '#fff', 26 | }); 27 | clearInterval(countDown); 28 | } else { 29 | $(btn).attr('disabled', true); 30 | $(btn).css({ 31 | background: '#d8d8d8', 32 | color: '#707070', 33 | }); 34 | $(btn).text(count + '秒后可重新获取'); 35 | } 36 | count--; 37 | }, 1000); 38 | } 39 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2020 David 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /src/main/resources/static/js/setting.js: -------------------------------------------------------------------------------- 1 | $(function(){ 2 | $("#uploadForm").submit(upload); 3 | }); 4 | 5 | //$.ajax是一种比$.post更为强大的异步请求方法，因为文件所需的参数更多了 6 | function upload() { 7 | $.ajax({ 8 | url: "http://upload-z1.qiniup.com", 9 | method: "post", 10 | processData: false, 11 | contentType: false, 12 | data: new FormData($("#uploadForm")[0]), 13 | success: function(data) { 14 | if(data && data.code == 0) { 15 | // 更新头像访问路径 16 | $.post( 17 | CONTEXT_PATH + "/user/header/url", 18 | {"fileName":$("input[name='key']").val()}, 19 | function(data) { 20 | data = $.parseJSON(data); 21 | if(data.code == 0) { 22 | window.location.reload(); 23 | } else { 24 | alert(data.msg); 25 | } 26 | } 27 | ); 28 | } else { 29 | alert("上传失败!"); 30 | } 31 | } 32 | }); 33 | return false; 34 | } -------------------------------------------------------------------------------- /src/main/java/com/nowcoder/community/dao/LoginTicketMapper.java: -------------------------------------------------------------------------------- 1 | package com.nowcoder.community.dao; 2 | 3 | import com.nowcoder.community.entity.LoginTicket; 4 | import org.apache.ibatis.annotations.*; 5 | 6 | @Mapper 7 | //弃用，因为重构代码将用户登录信息存到redis中，为了提高效率 8 | public interface LoginTicketMapper { 9 | 10 | @Insert({ 11 | "insert into login_ticket(user_id,ticket,status,expired) ", 12 | "values(#{userId},#{ticket},#{status},#{expired})" 13 | }) 14 | @Options(useGeneratedKeys = true, keyProperty = "id") 15 | int insertLoginTicket(LoginTicket loginTicket); 16 | 17 | @Select({ 18 | "select id,user_id,ticket,status,expired ", 19 | "from login_ticket where ticket=#{ticket}" 20 | }) 21 | LoginTicket selectByTicket(@Param("ticket")String ticket); 22 | 23 | @Update({ 24 | "" 30 | }) 31 | int updateStatus(@Param("ticket")String ticket, @Param("status")int status); 32 | 33 | } 34 | -------------------------------------------------------------------------------- /src/main/resources/static/js/global.js: -------------------------------------------------------------------------------- 1 | var CONTEXT_PATH = "/community"; 2 | 3 | window.alert = function(message) { 4 | if(!$(".alert-box").length) { 5 | $("body").append( 6 | '
'+
7 | '
'
24 | );
25 | }
26 |
27 | var h = $(".alert-box").height();
28 | var y = h / 2 - 100;
29 | if(h > 600) y -= 100;
30 | $(".alert-box .modal-dialog").css("margin", (y < 0 ? 0 : y) + "px auto");
31 |
32 | $(".alert-box .modal-body p").text(message);
33 | $(".alert-box").modal("show");
34 | }
35 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # community
2 | # 社区类型后端项目，可用于本科毕业设计，校招或实习面试项目
3 |
4 |
5 |
6 | 涉及到Spring、SpringMVC、Mybatis的整合，以及SpringBoot去简化Spring的配置开发
7 |
8 | 主要的技术点：
9 |
10 | 登录注册功能：使用kaptcha去生成验证码，使用邮件完成注册，Redis优化验证码的保存，解决分布式session问题
11 |
12 | 使用拦截器拦截用户请求，将用户信息绑定在ThreadLocal上
13 |
14 | 构建Trie数据结构，实现对发表帖子评论的敏感词过滤
15 |
16 | 支持对帖子评论，也支持对评论进行回复
17 |
18 | 利用AOP对service的业务代码实现日志记录
19 |
20 | 利用Redis的zset并结合Redis实现点赞关注的功能
21 |
22 | 点赞关注后的系统通知，实时性不需要特别高，使用kafka实现异步的发送系统通知
23 |
24 | 使用ElasticSearch实现对帖子的搜索功能，以及结果的高亮显示
25 |
26 | SpringQuartz实现定时任务，完成热门帖子的分数计算模块
27 |
28 | 使用本地缓存Quartz缓存热门帖子优化热门帖子页面，提高了QPS（10 - 200）
29 | 
30 | 
31 | 
32 | 
33 | 
34 |
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/src/main/java/com/nowcoder/community/dao/DiscussPostMapper.java:
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1 | package com.nowcoder.community.dao;
2 |
3 | import com.nowcoder.community.entity.DiscussPost;
4 | import org.apache.ibatis.annotations.Mapper;
5 | import org.apache.ibatis.annotations.Param;
6 |
7 | import java.util.List;
8 |
9 | @Mapper
10 | public interface DiscussPostMapper {
11 |
12 | //orderMode排序模式，默认为0。1是按帖子热度排序
13 | List'+
8 | ''+
22 | '
'+
23 | '').replace(/\n/g, '
').replace(/\s/g, ' '); 18 | // 发送异步请求(POST) 19 | $.post( 20 | CONTEXT_PATH + "/discuss/add", 21 | {"title":title,"content":content}, 22 | function(data) { 23 | data = $.parseJSON(data); 24 | // 在提示框中显示返回消息 25 | $("#hintBody").text(data.msg); 26 | // 显示提示框 27 | $("#hintModal").modal("show"); 28 | // 2秒后,自动隐藏提示框 29 | setTimeout(function(){ 30 | $("#hintModal").modal("hide"); 31 | // 刷新页面 32 | if(data.code == 0) { 33 | window.location.reload(); 34 | } 35 | }, 2000); 36 | } 37 | ); 38 | 39 | } -------------------------------------------------------------------------------- /src/main/resources/static/js/profile.js: -------------------------------------------------------------------------------- 1 | //在profile.html中，通过button的class属性获取对象 2 | $(function(){ 3 | $(".follow-btn").click(follow); 4 | }); 5 | 6 | 7 | function follow() { 8 | var btn = this; 9 | if($(btn).hasClass("btn-info")) { 10 | // 关注TA $(btn).prev()获取前一个结点的值，就是用户id 11 | $.post( 12 | CONTEXT_PATH + "/follow", 13 | {"entityType":3,"entityId":$(btn).prev().val()}, 14 | function(data) { 15 | data = $.parseJSON(data); 16 | if(data.code == 0) { 17 | window.location.reload(); 18 | } else { 19 | alert(data.msg); 20 | } 21 | } 22 | ); 23 | // $(btn).text("已关注").removeClass("btn-info").addClass("btn-secondary"); 24 | } else { 25 | // 取消关注 26 | $.post( 27 | CONTEXT_PATH + "/unfollow", 28 | {"entityType":3,"entityId":$(btn).prev().val()}, 29 | function(data) { 30 | data = $.parseJSON(data); 31 | if(data.code == 0) { 32 | window.location.reload(); 33 | } else { 34 | alert(data.msg); 35 | } 36 | } 37 | ); 38 | //$(btn).text("关注TA").removeClass("btn-secondary").addClass("btn-info"); 39 | } 40 | } -------------------------------------------------------------------------------- /src/main/java/com/nowcoder/community/actuator/DatabaseEndpoint.java: -------------------------------------------------------------------------------- 1 | package com.nowcoder.community.actuator; 2 | 3 | import com.nowcoder.community.util.CommunityUtil; 4 | import org.slf4j.Logger; 5 | import org.slf4j.LoggerFactory; 6 | import org.springframework.beans.factory.annotation.Autowired; 7 | import org.springframework.boot.actuate.endpoint.annotation.Endpoint; 8 | import org.springframework.boot.actuate.endpoint.annotation.ReadOperation; 9 | import org.springframework.stereotype.Component; 10 | 11 | import javax.sql.DataSource; 12 | import java.sql.Connection; 13 | import java.sql.SQLException; 14 | 15 | //@Component使用容器管理，用@Autowired获取对象 16 | @Component 17 | @Endpoint(id = "database") 18 | public class DatabaseEndpoint { 19 | 20 | private static final Logger logger = LoggerFactory.getLogger(DatabaseEndpoint.class); 21 | 22 | //连接池由Spring进行管理，直接注入进来即可 23 | @Autowired 24 | private DataSource dataSource; 25 | 26 | @ReadOperation 27 | public String checkConnection() { 28 | //加在小括号里的资源，结束的时候会自动关闭 29 | try ( 30 | Connection conn = dataSource.getConnection(); 31 | ) { 32 | return CommunityUtil.getJSONString(0, "获取连接成功!"); 33 | } catch (SQLException e) { 34 | logger.error("获取连接失败:" + e.getMessage()); 35 | return CommunityUtil.getJSONString(1, "获取连接失败!"); 36 | } 37 | } 38 | 39 | } 40 | -------------------------------------------------------------------------------- /src/main/resources/templates/error/404.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
30 |
31 |
32 |
33 |
34 |
35 |
36 |
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/src/main/resources/templates/error/500.html:
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
20 |
24 |
25 |
26 |
29 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
30 |
31 |
32 |
33 |
34 |
35 |
36 |
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/src/main/java/com/nowcoder/community/util/MailClient.java:
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1 | package com.nowcoder.community.util;
2 |
3 | import org.slf4j.Logger;
4 | import org.slf4j.LoggerFactory;
5 | import org.springframework.beans.factory.annotation.Autowired;
6 | import org.springframework.beans.factory.annotation.Value;
7 | import org.springframework.mail.javamail.JavaMailSender;
8 | import org.springframework.mail.javamail.MimeMessageHelper;
9 | import org.springframework.stereotype.Component;
10 |
11 | import javax.mail.internet.InternetAddress;
12 | import javax.mail.internet.MimeMessage;
13 |
14 | @Component
15 | public class MailClient {
16 |
17 | private static final Logger logger= LoggerFactory.getLogger(MailClient.class);
18 |
19 | @Autowired
20 | private JavaMailSender mailSender;
21 |
22 | @Value("${spring.mail.username}")
23 | private String from;
24 |
25 | public void sendMail(String to,String subject,String content){
26 | try {
27 | MimeMessage message = mailSender.createMimeMessage();
28 | MimeMessageHelper helper = new MimeMessageHelper(message);
29 | helper.setFrom(new InternetAddress(from,"community","UTF-8"));
30 | helper.setTo(to);
31 | helper.setSubject(subject);
32 | helper.setText(content, true);
33 | mailSender.send(helper.getMimeMessage());
34 | } catch (Exception e) {
35 | logger.error("发送邮件失败:" + e.getMessage());
36 | }
37 | }
38 | }
39 |
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/src/main/java/com/nowcoder/community/controller/interceptor/AlphaInterceptor.java:
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1 | package com.nowcoder.community.controller.interceptor;
2 |
3 | import org.slf4j.Logger;
4 | import org.slf4j.LoggerFactory;
5 | import org.springframework.stereotype.Component;
6 | import org.springframework.web.servlet.HandlerInterceptor;
7 | import org.springframework.web.servlet.ModelAndView;
8 |
9 | import javax.servlet.http.HttpServletRequest;
10 | import javax.servlet.http.HttpServletResponse;
11 |
12 | @Component
13 | public class AlphaInterceptor implements HandlerInterceptor {
14 |
15 | private static final Logger logger = LoggerFactory.getLogger(AlphaInterceptor.class);
16 |
17 | // 在Controller之前执行
18 | @Override
19 | public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
20 | logger.debug("preHandle: " + handler.toString());
21 | return true;
22 | }
23 |
24 | // 在Controller之后执行
25 | @Override
26 | public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
27 | logger.debug("postHandle: " + handler.toString());
28 | }
29 |
30 | // 在TemplateEngine之后执行
31 | @Override
32 | public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
33 | logger.debug("afterCompletion: " + handler.toString());
34 | }
35 | }
36 |
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/src/main/java/com/nowcoder/community/util/CommunityUtil.java:
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1 | package com.nowcoder.community.util;
2 |
3 | import com.alibaba.fastjson.JSONObject;
4 | import org.apache.commons.lang3.StringUtils;
5 | import org.springframework.util.DigestUtils;
6 |
7 | import java.util.HashMap;
8 | import java.util.Map;
9 | import java.util.UUID;
10 |
11 | public class CommunityUtil {
12 | //生成随机字符串,32位
13 | public static String generateUUID(){
14 | return UUID.randomUUID().toString().replaceAll("-","");
15 | }
16 |
17 | //MD5加密，采用spring自带的md5加密方法。一般还需要加盐，确保安全
18 | public static String md5(String key){
19 | //如果密码为null或空格，返回null
20 | if(StringUtils.isBlank(key)){
21 | return null;
22 | }
23 | return DigestUtils.md5DigestAsHex(key.getBytes());
24 | }
25 |
26 | public static String getJSONString(int code, String msg, Map
20 |
24 |
25 |
26 |
29 |
21 | ![]()
22 |
23 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
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/src/main/java/com/nowcoder/community/controller/interceptor/LoginRequiredInterceptor.java:
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1 | package com.nowcoder.community.controller.interceptor;
2 |
3 | import com.nowcoder.community.util.HostHolder;
4 | import com.nowcoder.community.annotation.LoginRequired;
5 | import org.springframework.beans.factory.annotation.Autowired;
6 | import org.springframework.stereotype.Component;
7 | import org.springframework.web.method.HandlerMethod;
8 | import org.springframework.web.servlet.HandlerInterceptor;
9 |
10 | import javax.servlet.http.HttpServletRequest;
11 | import javax.servlet.http.HttpServletResponse;
12 | import java.lang.reflect.Method;
13 |
14 | //对需要登录才能访问的资源进行拦截，已弃用，改为Spring Security管理
15 | @Component
16 | public class LoginRequiredInterceptor implements HandlerInterceptor {
17 |
18 | @Autowired
19 | private HostHolder hostHolder;
20 |
21 | @Override
22 | public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
23 | //instanceof代表拦截器只对方法进行拦截，对静态资源不进行拦截
24 | if (handler instanceof HandlerMethod) {
25 | HandlerMethod handlerMethod = (HandlerMethod) handler;
26 | Method method = handlerMethod.getMethod();
27 | LoginRequired loginRequired = method.getAnnotation(LoginRequired.class);
28 | if (loginRequired != null && hostHolder.getUser() == null) {
29 | response.sendRedirect(request.getContextPath() + "/login");
30 | return false;
31 | }
32 | }
33 | return true;
34 | }
35 | }
36 |
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/src/main/java/com/nowcoder/community/dao/MessageMapper.java:
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1 | package com.nowcoder.community.dao;
2 |
3 | import com.nowcoder.community.entity.Message;
4 | import org.apache.ibatis.annotations.Mapper;
5 | import org.apache.ibatis.annotations.Param;
6 |
7 | import java.util.List;
8 |
9 | @Mapper
10 | public interface MessageMapper {
11 |
12 | // 查询当前用户的会话列表,针对每个会话只返回一条最新的私信.
13 | List
21 |
28 |
29 |
30 |
33 |
22 |
27 |
23 |
25 |
26 | 您的账号已经激活成功,可以正常使用了!
24 |25 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
38 |
39 |
40 |
41 |
42 |
53 |
54 |
55 |
56 |
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/src/main/java/com/nowcoder/community/entity/Page.java:
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1 | package com.nowcoder.community.entity;
2 |
3 | /**
4 | * 封装分页相关的信息.
5 | */
6 | public class Page {
7 |
8 | // 当前页码
9 | private int current = 1;
10 | // 显示上限
11 | private int limit = 10;
12 | // 数据总数(用于计算总页数)
13 | private int rows;
14 | // 查询路径(用于复用分页链接)
15 | private String path;
16 |
17 | public int getCurrent() {
18 | return current;
19 | }
20 |
21 | public void setCurrent(int current) {
22 | if (current >= 1) {
23 | this.current = current;
24 | }
25 | }
26 |
27 | public int getLimit() {
28 | return limit;
29 | }
30 |
31 | public void setLimit(int limit) {
32 | if (limit >= 1 && limit <= 100) {
33 | this.limit = limit;
34 | }
35 | }
36 |
37 | public int getRows() {
38 | return rows;
39 | }
40 |
41 | public void setRows(int rows) {
42 | if (rows >= 0) {
43 | this.rows = rows;
44 | }
45 | }
46 |
47 | public String getPath() {
48 | return path;
49 | }
50 |
51 | public void setPath(String path) {
52 | this.path = path;
53 | }
54 |
55 | /**
56 | * 获取当前页的起始行
57 | *
58 | * @return
59 | */
60 | public int getOffset() {
61 | // current * limit - limit
62 | return (current - 1) * limit;
63 | }
64 |
65 | /**
66 | * 获取总页数
67 | *
68 | * @return
69 | */
70 | public int getTotal() {
71 | // rows / limit [+1]
72 | if (rows % limit == 0) {
73 | return rows / limit;
74 | } else {
75 | return rows / limit + 1;
76 | }
77 | }
78 |
79 | /**
80 | * 获取起始页码
81 | *
82 | * @return
83 | */
84 | public int getFrom() {
85 | int from = current - 2;
86 | return from < 1 ? 1 : from;
87 | }
88 |
89 | /**
90 | * 获取结束页码
91 | *
92 | * @return
93 | */
94 | public int getTo() {
95 | int to = current + 2;
96 | int total = getTotal();
97 | return to > total ? total : to;
98 | }
99 |
100 | }
101 |
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/src/main/resources/static/css/global.css:
--------------------------------------------------------------------------------
1 | html {
2 | height: 100%;
3 | }
4 |
5 | body {
6 | background: #eee;
7 | font-family: arial, STHeiti, 'Microsoft YaHei', \5b8b\4f53;
8 | font-size: 14px;
9 | height: 100%;
10 | }
11 |
12 | .nk-container {
13 | position: relative;
14 | height: auto;
15 | min-height: 100%;
16 | }
17 |
18 | .container {
19 | width: 960px;
20 | padding: 0;
21 | }
22 |
23 | header .navbar {
24 | padding: 5px 0;
25 | font-size: 16px;
26 | }
27 |
28 | header .badge {
29 | position: absolute;
30 | top: -3px;
31 | left: 33px;
32 | }
33 |
34 | footer {
35 | padding: 20px 0;
36 | font-size: 12px;
37 | position: absolute;
38 | bottom: 0;
39 | width: 100%;
40 | }
41 |
42 | footer .qrcode {
43 | text-align: center;
44 | }
45 |
46 | footer .detail-info{
47 | border-left: 1px solid #888;
48 | }
49 |
50 | footer .company-info li {
51 | padding-left: 16px;
52 | margin: 4px 0;
53 | }
54 |
55 | .main {
56 | padding: 20px 0;
57 | padding-bottom: 200px;
58 | }
59 |
60 | .main .container {
61 | background: #fff;
62 | padding: 20px;
63 | }
64 |
65 | i {
66 | font-style: normal;
67 | }
68 |
69 | u {
70 | text-decoration: none;
71 | }
72 |
73 | b {
74 | font-weight: normal;
75 | }
76 |
77 | a {
78 | color: #000;
79 | }
80 |
81 | a:hover {
82 | text-decoration: none;
83 | }
84 |
85 | .font-size-12 {
86 | font-size: 12px;
87 | }
88 | .font-size-14 {
89 | font-size: 14px;
90 | }
91 | .font-size-16 {
92 | font-size: 16px;
93 | }
94 | .font-size-18 {
95 | font-size: 18px;
96 | }
97 | .font-size-20 {
98 | font-size: 20px;
99 | }
100 | .font-size-22 {
101 | font-size: 20px;
102 | }
103 | .font-size-24 {
104 | font-size: 20px;
105 | }
106 |
107 | .hidden {
108 | display: none;
109 | }
110 |
111 | .rt-0 {
112 | right: 0;
113 | top: 0;
114 | }
115 |
116 | .square {
117 | display: inline-block;
118 | width: 7px;
119 | height: 7px;
120 | background: #ff6547;
121 | margin-bottom: 2px;
122 | margin-right: 3px;
123 | }
124 |
125 | .bg-gray {
126 | background: #eff0f2;
127 | }
128 |
129 | .user-header {
130 | width: 50px;
131 | height: 50px;
132 | }
133 |
134 | em {
135 | font-style: normal;
136 | color: red;
137 | }
138 |
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/src/main/java/com/nowcoder/community/config/WebMvcConfig.java:
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1 | package com.nowcoder.community.config;
2 |
3 | import com.nowcoder.community.controller.interceptor.AlphaInterceptor;
4 | import com.nowcoder.community.controller.interceptor.DataInterceptor;
5 | import com.nowcoder.community.controller.interceptor.LoginTicketInterceptor;
6 | import com.nowcoder.community.controller.interceptor.MessageInterceptor;
7 | import com.community.controller.interceptor.*;
8 | import org.springframework.beans.factory.annotation.Autowired;
9 | import org.springframework.context.annotation.Configuration;
10 | import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
11 | import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
12 |
13 | @Configuration
14 | public class WebMvcConfig implements WebMvcConfigurer {
15 |
16 | @Autowired
17 | private AlphaInterceptor alphaInterceptor;
18 |
19 | @Autowired
20 | private LoginTicketInterceptor loginTicketInterceptor;
21 |
22 | // @Autowired
23 | // private LoginRequiredInterceptor loginRequiredInterceptor;
24 |
25 | @Autowired
26 | private MessageInterceptor messageInterceptor;
27 |
28 | @Autowired
29 | private DataInterceptor dataInterceptor;
30 |
31 | @Override
32 | public void addInterceptors(InterceptorRegistry registry) {
33 | registry.addInterceptor(alphaInterceptor)
34 | .excludePathPatterns("/**/*.css", "/**/*.js", "/**/*.png", "/**/*.jpg", "/**/*.jpeg")
35 | .addPathPatterns("/register", "/login");
36 |
37 | //所有请求都要拦截，除了static下的静态资源不拦截
38 | registry.addInterceptor(loginTicketInterceptor)
39 | .excludePathPatterns("/**/*.css", "/**/*.js", "/**/*.png", "/**/*.jpg", "/**/*.jpeg");
40 |
41 | // registry.addInterceptor(loginRequiredInterceptor)
42 | // .excludePathPatterns("/**/*.css", "/**/*.js", "/**/*.png", "/**/*.jpg", "/**/*.jpeg");
43 |
44 | registry.addInterceptor(messageInterceptor)
45 | .excludePathPatterns("/**/*.css", "/**/*.js", "/**/*.png", "/**/*.jpg", "/**/*.jpeg");
46 |
47 | registry.addInterceptor(dataInterceptor)
48 | .excludePathPatterns("/**/*.css", "/**/*.js", "/**/*.png", "/**/*.jpg", "/**/*.jpeg");
49 | }
50 |
51 | }
52 |
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/src/main/java/com/nowcoder/community/entity/Comment.java:
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1 | package com.nowcoder.community.entity;
2 |
3 | import java.util.Date;
4 |
5 | public class Comment {
6 |
7 | private int id;
8 | private int userId;
9 | private int entityType;
10 | private int entityId;
11 | private int targetId;
12 | private String content;
13 | private int status;
14 | private Date createTime;
15 |
16 | public int getId() {
17 | return id;
18 | }
19 |
20 | public void setId(int id) {
21 | this.id = id;
22 | }
23 |
24 | public int getUserId() {
25 | return userId;
26 | }
27 |
28 | public void setUserId(int userId) {
29 | this.userId = userId;
30 | }
31 |
32 | public int getEntityType() {
33 | return entityType;
34 | }
35 |
36 | public void setEntityType(int entityType) {
37 | this.entityType = entityType;
38 | }
39 |
40 | public int getEntityId() {
41 | return entityId;
42 | }
43 |
44 | public void setEntityId(int entityId) {
45 | this.entityId = entityId;
46 | }
47 |
48 | public int getTargetId() {
49 | return targetId;
50 | }
51 |
52 | public void setTargetId(int targetId) {
53 | this.targetId = targetId;
54 | }
55 |
56 | public String getContent() {
57 | return content;
58 | }
59 |
60 | public void setContent(String content) {
61 | this.content = content;
62 | }
63 |
64 | public int getStatus() {
65 | return status;
66 | }
67 |
68 | public void setStatus(int status) {
69 | this.status = status;
70 | }
71 |
72 | public Date getCreateTime() {
73 | return createTime;
74 | }
75 |
76 | public void setCreateTime(Date createTime) {
77 | this.createTime = createTime;
78 | }
79 |
80 | @Override
81 | public String toString() {
82 | return "Comment{" +
83 | "id=" + id +
84 | ", userId=" + userId +
85 | ", entityType=" + entityType +
86 | ", entityId=" + entityId +
87 | ", targetId=" + targetId +
88 | ", content='" + content + '\'' +
89 | ", status=" + status +
90 | ", createTime=" + createTime +
91 | '}';
92 | }
93 | }
94 |
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/src/main/resources/mapper/comment-mapper.xml:
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21 |
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33 |
34 |
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/src/main/java/com/nowcoder/community/controller/LikeController.java:
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1 | package com.nowcoder.community.controller;
2 |
3 | import com.nowcoder.community.entity.User;
4 | import com.nowcoder.community.util.CommunityUtil;
5 | import com.nowcoder.community.util.HostHolder;
6 | import com.nowcoder.community.entity.Event;
7 | import com.nowcoder.community.event.EventProducer;
8 | import com.nowcoder.community.service.LikeService;
9 | import com.nowcoder.community.util.CommunityConstant;
10 | import com.nowcoder.community.util.RedisKeyUtil;
11 | import org.springframework.beans.factory.annotation.Autowired;
12 | import org.springframework.data.redis.core.RedisTemplate;
13 | import org.springframework.stereotype.Controller;
14 | import org.springframework.web.bind.annotation.RequestMapping;
15 | import org.springframework.web.bind.annotation.RequestMethod;
16 | import org.springframework.web.bind.annotation.ResponseBody;
17 |
18 | import java.util.HashMap;
19 | import java.util.Map;
20 |
21 | @Controller
22 | public class LikeController implements CommunityConstant {
23 |
24 | @Autowired
25 | private LikeService likeService;
26 |
27 | @Autowired
28 | private HostHolder hostHolder;
29 |
30 | @Autowired
31 | private EventProducer eventProducer;
32 |
33 | @Autowired
34 | private RedisTemplate redisTemplate;
35 |
36 | @RequestMapping(path = "/like", method = RequestMethod.POST)
37 | @ResponseBody
38 | //entityType这些数据是由js传递过来的
39 | public String like(int entityType, int entityId,int entityUserId,int postId) {
40 | User user = hostHolder.getUser();
41 |
42 | // 点赞
43 | likeService.like(user.getId(), entityType, entityId,entityUserId);
44 |
45 | // 数量
46 | long likeCount = likeService.findEntityLikeCount(entityType, entityId);
47 | // 状态
48 | int likeStatus = likeService.findEntityLikeStatus(user.getId(), entityType, entityId);
49 | // 返回的结果
50 | Map
20 |
51 |
52 |
53 |
56 |
21 |
50 | 相关帖子
22 | 23 |-
24 |
-
25 |
26 |
27 |43 |28 | 备战春招，面试刷题跟他复习，一个月全搞定！ 29 |
30 |31 | 金三银四的金三已经到了，你还沉浸在过年的喜悦中吗？ 如果是，那我要让你清醒一下了：目前大部分公司已经开启了内推，正式网申也将在3月份陆续开始，金三银四，春招的求职黄金时期已经来啦！！！ 再不准备，作为19应届生的你可能就找不到工作了。。。作为20届实习生的你可能就找不到实习了。。。 现阶段时间紧，任务重，能做到短时间内快速提升的也就只有算法了， 那么算法要怎么复习？重点在哪里？常见笔试面试算法题型和解题思路以及最优代码是怎样的？ 跟左程云老师学算法，不仅能解决以上所有问题，还能在短时间内得到最大程度的提升！！！ 32 |33 |34 | 寒江雪 35 | 发布于 2019-04-15 15:32:18 36 |42 |-
37 |
- 赞 11 38 |
- | 39 |
- 回复 7 40 |
44 |
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/src/main/java/com/nowcoder/community/config/QuartzConfig.java:
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1 | package com.nowcoder.community.config;
2 |
3 | import com.nowcoder.community.quartz.PostScoreRefreshJob;
4 | import com.nowcoder.community.quartz.AlphaJob;
5 | import org.quartz.JobDataMap;
6 | import org.quartz.JobDetail;
7 | import org.springframework.context.annotation.Bean;
8 | import org.springframework.context.annotation.Configuration;
9 | import org.springframework.scheduling.quartz.JobDetailFactoryBean;
10 | import org.springframework.scheduling.quartz.SimpleTriggerFactoryBean;
11 |
12 | // 配置 -> 数据库 -> 调用
13 | @Configuration
14 | public class QuartzConfig {
15 |
16 | // FactoryBean可简化Bean的实例化过程:
17 | // 1.通过FactoryBean封装Bean的实例化过程.
18 | // 2.将FactoryBean装配到Spring容器里.
19 | // 3.将FactoryBean注入给其他的Bean.
20 | // 4.该Bean得到的是FactoryBean所管理的对象实例.
21 |
22 | // 配置JobDetail @Bean表示程序一启动就会被初始化，因此就会执行调度任务。我们不想让调度任务启动，注释即可
23 | // @Bean
24 | public JobDetailFactoryBean alphaJobDetail() {
25 | JobDetailFactoryBean factoryBean = new JobDetailFactoryBean();
26 | factoryBean.setJobClass(AlphaJob.class);
27 | factoryBean.setName("alphaJob");
28 | factoryBean.setGroup("alphaJobGroup");
29 | factoryBean.setDurability(true);
30 | factoryBean.setRequestsRecovery(true);
31 | return factoryBean;
32 | }
33 |
34 | // 配置Trigger(SimpleTriggerFactoryBean, CronTriggerFactoryBean).
35 | //每3s调度一次任务
36 | // @Bean
37 | public SimpleTriggerFactoryBean alphaTrigger(JobDetail alphaJobDetail) {
38 | SimpleTriggerFactoryBean factoryBean = new SimpleTriggerFactoryBean();
39 | factoryBean.setJobDetail(alphaJobDetail);
40 | factoryBean.setName("alphaTrigger");
41 | factoryBean.setGroup("alphaTriggerGroup");
42 | factoryBean.setRepeatInterval(3000);
43 | factoryBean.setJobDataMap(new JobDataMap());
44 | return factoryBean;
45 | }
46 |
47 | // 刷新帖子分数任务
48 | @Bean
49 | public JobDetailFactoryBean postScoreRefreshJobDetail() {
50 | JobDetailFactoryBean factoryBean = new JobDetailFactoryBean();
51 | factoryBean.setJobClass(PostScoreRefreshJob.class);
52 | factoryBean.setName("postScoreRefreshJob");
53 | factoryBean.setGroup("communityJobGroup");
54 | factoryBean.setDurability(true);
55 | factoryBean.setRequestsRecovery(true);
56 | return factoryBean;
57 | }
58 |
59 | //设置每2小时执行一次
60 | @Bean
61 | public SimpleTriggerFactoryBean postScoreRefreshTrigger(JobDetail postScoreRefreshJobDetail) {
62 | SimpleTriggerFactoryBean factoryBean = new SimpleTriggerFactoryBean();
63 | factoryBean.setJobDetail(postScoreRefreshJobDetail);
64 | factoryBean.setName("postScoreRefreshTrigger");
65 | factoryBean.setGroup("communityTriggerGroup");
66 | factoryBean.setRepeatInterval(1000 * 60 * 60 * 2); //2小时执行一次
67 | factoryBean.setJobDataMap(new JobDataMap());
68 | return factoryBean;
69 | }
70 |
71 | }
72 |
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/src/main/java/com/nowcoder/community/controller/HomeController.java:
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1 | package com.nowcoder.community.controller;
2 |
3 | import com.nowcoder.community.entity.DiscussPost;
4 | import com.nowcoder.community.entity.Page;
5 | import com.nowcoder.community.entity.User;
6 | import com.nowcoder.community.service.DiscussPostService;
7 | import com.nowcoder.community.service.LikeService;
8 | import com.nowcoder.community.service.UserService;
9 | import com.nowcoder.community.util.CommunityConstant;
10 | import org.springframework.beans.factory.annotation.Autowired;
11 | import org.springframework.stereotype.Controller;
12 | import org.springframework.ui.Model;
13 | import org.springframework.web.bind.annotation.RequestMapping;
14 | import org.springframework.web.bind.annotation.RequestMethod;
15 | import org.springframework.web.bind.annotation.RequestParam;
16 |
17 | import java.util.ArrayList;
18 | import java.util.HashMap;
19 | import java.util.List;
20 | import java.util.Map;
21 |
22 | @Controller
23 | //访问路径的时候前面还要加上community
24 | public class HomeController implements CommunityConstant {
25 |
26 | @Autowired
27 | private DiscussPostService discussPostService;
28 |
29 | @Autowired
30 | private UserService userService;
31 |
32 | @Autowired
33 | private LikeService likeService;
34 |
35 | @RequestMapping(path = "/index", method = RequestMethod.GET)
36 | //查询全部帖子，并显示在首页上
37 | public String getIndexPage(Model model, Page page,
38 | @RequestParam(name = "orderMode", defaultValue = "0") int orderMode) {
39 | // 方法调用前,SpringMVC会自动实例化Model和Page,并将Page注入Model.
40 | // 所以,在thymeleaf中可以直接访问Page对象中的数据.
41 | //最新、最热贴都是置顶具有优先级
42 | page.setRows(discussPostService.findDiscussPostRows(0));
43 | page.setPath("/index?orderMode="+orderMode);
44 |
45 | List
20 |
21 |
51 |
52 |
53 |
56 |
22 |
35 |
36 | 网站 UV
23 | 28 |-
29 |
- 30 | 统计结果 31 | 0 32 | 33 |
37 |
50 | 活跃用户
38 | 43 |-
44 |
- 45 | 统计结果 46 | 0 47 | 48 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
64 |
65 |
66 |
67 |
68 |
69 |
70 |
71 |
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/src/main/java/com/nowcoder/community/entity/User.java:
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1 | package com.nowcoder.community.entity;
2 |
3 | import java.util.Date;
4 |
5 | public class User {
6 |
7 | private int id;
8 | private String username;
9 | private String password;
10 | private String salt;
11 | private String email;
12 | //0-普通用户 1-版主 2-管理员
13 | private int type;
14 | private int status;
15 | private String activationCode;
16 | private String headerUrl;
17 | private Date createTime;
18 |
19 | public int getId() {
20 | return id;
21 | }
22 |
23 | public void setId(int id) {
24 | this.id = id;
25 | }
26 |
27 | public String getUsername() {
28 | return username;
29 | }
30 |
31 | public void setUsername(String username) {
32 | this.username = username;
33 | }
34 |
35 | public String getPassword() {
36 | return password;
37 | }
38 |
39 | public void setPassword(String password) {
40 | this.password = password;
41 | }
42 |
43 | public String getSalt() {
44 | return salt;
45 | }
46 |
47 | public void setSalt(String salt) {
48 | this.salt = salt;
49 | }
50 |
51 | public String getEmail() {
52 | return email;
53 | }
54 |
55 | public void setEmail(String email) {
56 | this.email = email;
57 | }
58 |
59 | public int getType() {
60 | return type;
61 | }
62 |
63 | public void setType(int type) {
64 | this.type = type;
65 | }
66 |
67 | public int getStatus() {
68 | return status;
69 | }
70 |
71 | public void setStatus(int status) {
72 | this.status = status;
73 | }
74 |
75 | public String getActivationCode() {
76 | return activationCode;
77 | }
78 |
79 | public void setActivationCode(String activationCode) {
80 | this.activationCode = activationCode;
81 | }
82 |
83 | public String getHeaderUrl() {
84 | return headerUrl;
85 | }
86 |
87 | public void setHeaderUrl(String headerUrl) {
88 | this.headerUrl = headerUrl;
89 | }
90 |
91 | public Date getCreateTime() {
92 | return createTime;
93 | }
94 |
95 | public void setCreateTime(Date createTime) {
96 | this.createTime = createTime;
97 | }
98 |
99 | @Override
100 | public String toString() {
101 | return "User{" +
102 | "id=" + id +
103 | ", username='" + username + '\'' +
104 | ", password='" + password + '\'' +
105 | ", salt='" + salt + '\'' +
106 | ", email='" + email + '\'' +
107 | ", type=" + type +
108 | ", status=" + status +
109 | ", activationCode='" + activationCode + '\'' +
110 | ", headerUrl='" + headerUrl + '\'' +
111 | ", createTime=" + createTime +
112 | '}';
113 | }
114 |
115 | }
116 |
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/src/main/java/com/nowcoder/community/util/RedisKeyUtil.java:
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1 | package com.nowcoder.community.util;
2 |
3 | //生成redis命令的工具类
4 | public class RedisKeyUtil {
5 |
6 | private static final String SPLIT = ":";
7 | private static final String PREFIX_ENTITY_LIKE = "like:entity";
8 | private static final String PREFIX_USER_LIKE = "like:user";
9 | private static final String PREFIX_FOLLOWEE = "followee";
10 | private static final String PREFIX_FOLLOWER = "follower";
11 | private static final String PREFIX_KAPTCHA = "kaptcha";
12 | private static final String PREFIX_CODE = "code";
13 | private static final String PREFIX_TICKET = "ticket";
14 | private static final String PREFIX_USER = "user";
15 | private static final String PREFIX_UV = "uv";
16 | private static final String PREFIX_DAU = "dau";
17 | private static final String PREFIX_POST = "post";
18 |
19 | // 某个实体的赞,实体是帖子或评论
20 | // like:entity:entityType:entityId -> set(userId)
21 | public static String getEntityLikeKey(int entityType, int entityId) {
22 | return PREFIX_ENTITY_LIKE + SPLIT + entityType + SPLIT + entityId;
23 | }
24 |
25 | // 某个用户的赞
26 | // like:user:userId -> int
27 | public static String getUserLikeKey(int userId) {
28 | return PREFIX_USER_LIKE + SPLIT + userId;
29 | }
30 |
31 | // 某个用户关注的实体
32 | // followee:userId:entityType -> zset(entityId,now)
33 | public static String getFolloweeKey(int userId, int entityType) {
34 | return PREFIX_FOLLOWEE + SPLIT + userId + SPLIT + entityType;
35 | }
36 |
37 | // 某个实体拥有的粉丝
38 | // follower:entityType:entityId -> zset(userId,now)
39 | public static String getFollowerKey(int entityType, int entityId) {
40 | return PREFIX_FOLLOWER + SPLIT + entityType + SPLIT + entityId;
41 | }
42 |
43 | // 登录验证码
44 | public static String getKaptchaKey(String owner) {
45 | return PREFIX_KAPTCHA + SPLIT + owner;
46 | }
47 |
48 | // 登录的凭证
49 | public static String getTicketKey(String ticket) {
50 | return PREFIX_TICKET + SPLIT + ticket;
51 | }
52 |
53 | // 用户
54 | public static String getUserKey(int userId) {
55 | return PREFIX_USER + SPLIT + userId;
56 | }
57 |
58 | //日期数据传入年月日就够了，不用时分秒
59 | // 单日UV
60 | public static String getUVKey(String date) {
61 | return PREFIX_UV + SPLIT + date;
62 | }
63 |
64 | // 区间UV
65 | public static String getUVKey(String startDate, String endDate) {
66 | return PREFIX_UV + SPLIT + startDate + SPLIT + endDate;
67 | }
68 |
69 | // 单日活跃用户
70 | public static String getDAUKey(String date) {
71 | return PREFIX_DAU + SPLIT + date;
72 | }
73 |
74 | // 区间活跃用户
75 | public static String getDAUKey(String startDate, String endDate) {
76 | return PREFIX_DAU + SPLIT + startDate + SPLIT + endDate;
77 | }
78 |
79 | // 帖子分数
80 | public static String getPostScoreKey() {
81 | return PREFIX_POST + SPLIT + "score";
82 | }
83 |
84 | public static String getCodeKey(String owner) {
85 | return PREFIX_CODE + SPLIT + owner;
86 | }
87 | }
88 |
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/src/main/resources/templates/site/my-post.html:
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1 |
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3 |
4 |
5 |
6 |
7 |
8 |
9 |
20 |
58 |
59 |
60 |
63 |
21 |
22 |
57 |
23 |
34 | 返回个人主页>
35 |
36 |
37 |
56 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
65 |
66 |
67 |
68 |
69 |
70 |
71 |
72 |
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/src/main/java/com/nowcoder/community/controller/interceptor/LoginTicketInterceptor.java:
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1 | package com.nowcoder.community.controller.interceptor;
2 |
3 | import com.nowcoder.community.entity.LoginTicket;
4 | import com.nowcoder.community.entity.User;
5 | import com.nowcoder.community.service.UserService;
6 | import com.nowcoder.community.util.CookieUtil;
7 | import com.nowcoder.community.util.HostHolder;
8 | import org.springframework.beans.factory.annotation.Autowired;
9 | import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
10 | import org.springframework.security.core.Authentication;
11 | import org.springframework.security.core.context.SecurityContextHolder;
12 | import org.springframework.security.core.context.SecurityContextImpl;
13 | import org.springframework.stereotype.Component;
14 | import org.springframework.web.servlet.HandlerInterceptor;
15 | import org.springframework.web.servlet.ModelAndView;
16 |
17 | import javax.servlet.http.HttpServletRequest;
18 | import javax.servlet.http.HttpServletResponse;
19 | import java.util.Date;
20 |
21 | @Component
22 | public class LoginTicketInterceptor implements HandlerInterceptor {
23 |
24 | @Autowired
25 | private UserService userService;
26 |
27 | @Autowired
28 | private HostHolder hostHolder;
29 |
30 | //在Controller之前执行
31 | @Override
32 | public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
33 | // 从cookie中获取凭证
34 | String ticket = CookieUtil.getValue(request, "ticket");
35 |
36 | if (ticket != null) {
37 | // 查询凭证
38 | LoginTicket loginTicket = userService.findLoginTicket(ticket);
39 | // 检查凭证是否有效
40 | if (loginTicket != null && loginTicket.getStatus() == 0 && loginTicket.getExpired().after(new Date())) {
41 | // 根据凭证查询用户
42 | User user = userService.findUserById(loginTicket.getUserId());
43 | // 在本次请求中持有用户，访问一个网页就是一个请求，如/login，/register
44 | hostHolder.setUser(user);
45 | // 查询用户的权限,并存入SecurityContext,以便于Security进行授权。
46 | Authentication authentication = new UsernamePasswordAuthenticationToken(
47 | user, user.getPassword(), userService.getAuthorities(user.getId()));
48 | SecurityContextHolder.setContext(new SecurityContextImpl(authentication));
49 | }
50 | }
51 |
52 | return true;
53 | }
54 |
55 | //在Controller之后执行
56 | @Override
57 | public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
58 | User user = hostHolder.getUser();
59 | if (user != null && modelAndView != null) {
60 | modelAndView.addObject("loginUser", user);
61 | }
62 | }
63 |
64 | //在TemplateEngine之后执行
65 | @Override
66 | public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
67 | //在线程中把数据清掉，节约空间
68 | hostHolder.clear();
69 | SecurityContextHolder.clearContext();
70 | }
71 | }
72 |
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/src/main/resources/templates/site/followee.html:
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34 | 返回个人主页>
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57 | 发布的帖子()
39 |-
40 |
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41 | 42 | 备战春招，面试刷题跟他复习，一个月全搞定！ 43 | 44 | 赞 | 回帖 45 | 发布于 47 | 48 |49 | 50 |
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/src/main/resources/templates/site/follower.html:
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/src/main/resources/application-pro.properties:
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1 | # ServerProperties
2 | server.port=8080
3 | server.servlet.context-path=
4 |
5 | # ThymeleafProperties
6 | spring.thymeleaf.cache=true
7 |
8 | # DataSourceProperties
9 | spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
10 | spring.datasource.url=jdbc:mysql://localhost:3306/community?characterEncoding=utf-8&useSSL=false&serverTimezone=Hongkong
11 | spring.datasource.username=root
12 | spring.datasource.password=Nowcoder_123
13 | spring.datasource.type=com.zaxxer.hikari.HikariDataSource
14 | spring.datasource.hikari.maximum-pool-size=15
15 | spring.datasource.hikari.minimum-idle=5
16 | spring.datasource.hikari.idle-timeout=30000
17 |
18 | # MybatisProperties
19 | mybatis.mapper-locations=classpath:mapper/*.xml
20 | mybatis.type-aliases-package=com.community.entity
21 | mybatis.configuration.useGeneratedKeys=true
22 | mybatis.configuration.mapUnderscoreToCamelCase=true
23 |
24 | # MailProperties
25 | spring.mail.host=smtp.sina.com
26 | spring.mail.port=465
27 | spring.mail.username=nowcoder@sina.com
28 | spring.mail.password=nowcoder123
29 | spring.mail.protocol=smtps
30 | spring.mail.properties.mail.smtp.ssl.enable=true
31 |
32 | # community
33 | community.path.domain=http://120.55.53.217
34 | community.path.upload=/tmp/uploads
35 |
36 | # RedisProperties
37 | spring.redis.database=11
38 | spring.redis.host=localhost
39 | spring.redis.port=6379
40 |
41 | # KafkaProperties
42 | spring.kafka.bootstrap-servers=localhost:9092
43 | spring.kafka.consumer.group-id=community-consumer-group
44 | spring.kafka.consumer.enable-auto-commit=true
45 | spring.kafka.consumer.auto-commit-interval=3000
46 |
47 | # ElasticsearchProperties
48 | spring.data.elasticsearch.cluster-name=nowcoder
49 | spring.data.elasticsearch.cluster-nodes=127.0.0.1:9300
50 |
51 | # TaskExecutionProperties
52 | spring.task.execution.pool.core-size=5
53 | spring.task.execution.pool.max-size=15
54 | spring.task.execution.pool.queue-capacity=100
55 |
56 | # TaskSchedulingProperties
57 | spring.task.scheduling.pool.size=5
58 |
59 | # QuartzProperties
60 | spring.quartz.job-store-type=jdbc
61 | spring.quartz.scheduler-name=communityScheduler
62 | spring.quartz.properties.org.quartz.scheduler.instanceId=AUTO
63 | spring.quartz.properties.org.quartz.jobStore.class=org.quartz.impl.jdbcjobstore.JobStoreTX
64 | spring.quartz.properties.org.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.StdJDBCDelegate
65 | spring.quartz.properties.org.quartz.jobStore.isClustered=true
66 | spring.quartz.properties.org.quartz.threadPool.class=org.quartz.simpl.SimpleThreadPool
67 | spring.quartz.properties.org.quartz.threadPool.threadCount=5
68 |
69 | # wk
70 | wk.image.command=/opt/wkhtmltoimage.sh
71 | wk.image.storage=/tmp/wk-images
72 |
73 | # qiniu
74 | qiniu.key.access=6RA-Uus95ZT_1znMrCMD8BpqfjT-K7OKmQTfKB48
75 | qiniu.key.secret=kPNnLFz2_tzztKUVpSLm0lYngtuHWyIq5LzTmLIL
76 | qiniu.bucket.header.name=community_header
77 | quniu.bucket.header.url=http://pvghrij81.bkt.clouddn.com
78 | qiniu.bucket.share.name=community_share
79 | qiniu.bucket.share.url=http://pvghvvuzm.bkt.clouddn.com
80 |
81 | # caffeine
82 | caffeine.posts.max-size=15
83 | caffeine.posts.expire-seconds=180
84 |
85 | # actuator
86 | management.endpoints.web.exposure.include=*
87 | management.endpoints.web.exposure.exclude=info,caches
88 |
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/src/main/resources/static/js/discuss.js:
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1 | $(function(){
2 | $("#topBtn").click(setTop);
3 | $("#wonderfulBtn").click(setWonderful);
4 | $("#deleteBtn").click(setDelete);
5 | });
6 |
7 | function like(btn, entityType, entityId, entityUserId, postId) {
8 | $.post(
9 | CONTEXT_PATH + "/like",
10 | {"entityType":entityType,"entityId":entityId,"entityUserId":entityUserId,"postId":postId},
11 | function(data) {
12 | data = $.parseJSON(data);
13 | if(data.code == 0) {
14 | $(btn).children("i").text(data.likeCount);
15 | $(btn).children("b").text(data.likeStatus==1?'已赞':"赞");
16 | } else {
17 | alert(data.msg);
18 | }
19 | }
20 | );
21 | }
22 |
23 | // 置顶
24 | function setTop() {
25 | if($("#topBtn").hasClass("btn-danger")) {
26 | //置顶
27 | $.post(
28 | CONTEXT_PATH + "/discuss/top",
29 | {"id": $("#postId").val()},
30 | function (data) {
31 | //从服务器返回的json字符串中取出code值
32 | data = $.parseJSON(data);
33 | if (data.code == 0) {
34 | window.location.reload();
35 | } else {
36 | alert(data.msg);
37 | }
38 | }
39 | );
40 | }else{
41 | //取消置顶
42 | $.post(
43 | CONTEXT_PATH + "/discuss/untop",
44 | {"id": $("#postId").val()},
45 | function (data) {
46 | //从服务器返回的json字符串中取出code值
47 | data = $.parseJSON(data);
48 | if (data.code == 0) {
49 | window.location.reload();
50 | } else {
51 | alert(data.msg);
52 | }
53 | }
54 | );
55 | }
56 | }
57 |
58 | // 加精
59 | function setWonderful() {
60 | if($("#wonderfulBtn").hasClass("btn-danger")) {
61 | //加精
62 | $.post(
63 | CONTEXT_PATH + "/discuss/wonderful",
64 | {"id": $("#postId").val()},
65 | function (data) {
66 | data = $.parseJSON(data);
67 | if (data.code == 0) {
68 | window.location.reload();
69 | } else {
70 | alert(data.msg);
71 | }
72 | }
73 | );
74 | }else{
75 | //取消加精
76 | $.post(
77 | CONTEXT_PATH + "/discuss/unwonderful",
78 | {"id": $("#postId").val()},
79 | function (data) {
80 | data = $.parseJSON(data);
81 | if (data.code == 0) {
82 | window.location.reload();
83 | } else {
84 | alert(data.msg);
85 | }
86 | }
87 | );
88 | }
89 | }
90 |
91 | // 删除
92 | function setDelete() {
93 | $.post(
94 | CONTEXT_PATH + "/discuss/delete",
95 | {"id":$("#postId").val()},
96 | function(data) {
97 | data = $.parseJSON(data);
98 | if(data.code == 0) {
99 | location.href = CONTEXT_PATH + "/index";
100 | } else {
101 | alert(data.msg);
102 | }
103 | }
104 | );
105 | }
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/src/main/resources/templates/site/profile.html:
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/src/main/java/com/nowcoder/community/controller/CommentController.java:
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1 | package com.nowcoder.community.controller;
2 |
3 | import com.nowcoder.community.entity.DiscussPost;
4 | import com.nowcoder.community.util.HostHolder;
5 | import com.nowcoder.community.entity.Comment;
6 | import com.nowcoder.community.entity.Event;
7 | import com.nowcoder.community.event.EventProducer;
8 | import com.nowcoder.community.service.CommentService;
9 | import com.nowcoder.community.service.DiscussPostService;
10 | import com.nowcoder.community.util.CommunityConstant;
11 | import com.nowcoder.community.util.RedisKeyUtil;
12 | import org.springframework.beans.factory.annotation.Autowired;
13 | import org.springframework.data.redis.core.RedisTemplate;
14 | import org.springframework.stereotype.Controller;
15 | import org.springframework.web.bind.annotation.PathVariable;
16 | import org.springframework.web.bind.annotation.RequestMapping;
17 | import org.springframework.web.bind.annotation.RequestMethod;
18 |
19 | import java.util.Date;
20 |
21 | @Controller
22 | @RequestMapping("/comment")
23 | public class CommentController implements CommunityConstant {
24 |
25 | @Autowired
26 | private CommentService commentService;
27 |
28 | @Autowired
29 | private HostHolder hostHolder;
30 |
31 | @Autowired
32 | private EventProducer eventProducer;
33 |
34 | @Autowired
35 | private DiscussPostService discussPostService;
36 |
37 | @Autowired
38 | private RedisTemplate redisTemplate;
39 |
40 | @RequestMapping(path = "/add/{discussPostId}", method = RequestMethod.POST)
41 | public String addComment(@PathVariable("discussPostId") int discussPostId, Comment comment) {
42 | //Comment的其他属性，form表单提交时就会赋值。有些属性可以写在中，这样就可以赋值
43 | comment.setUserId(hostHolder.getUser().getId());
44 | comment.setStatus(0);
45 | comment.setCreateTime(new Date());
46 | commentService.addComment(comment);
47 |
48 | //触发评论事件
49 | Event event = new Event()
50 | .setTopic(TOPIC_COMMENT)
51 | .setUserId(hostHolder.getUser().getId())
52 | .setEntityType(comment.getEntityType())
53 | .setEntityId(comment.getEntityId())
54 | .setData("postId", discussPostId);
55 | if (comment.getEntityType() == ENTITY_TYPE_POST) {
56 | DiscussPost target = discussPostService.findDiscussPostById(comment.getEntityId());
57 | event.setEntityUserId(target.getUserId());
58 | } else if (comment.getEntityType() == ENTITY_TYPE_COMMENT) {
59 | Comment target = commentService.findCommentById(comment.getEntityId());
60 | event.setEntityUserId(target.getUserId());
61 | }
62 | eventProducer.fireEvent(event);
63 |
64 | //触发评论事件后，还要触发发帖事件，因为帖子评论数量改变
65 | if (comment.getEntityType() == ENTITY_TYPE_POST) {
66 | // 触发发帖事件
67 | event = new Event()
68 | .setTopic(TOPIC_PUBLISH)
69 | .setUserId(comment.getUserId())
70 | .setEntityType(ENTITY_TYPE_POST)
71 | .setEntityId(discussPostId);
72 | eventProducer.fireEvent(event);
73 |
74 | // 计算帖子分数
75 | String redisKey = RedisKeyUtil.getPostScoreKey();
76 | redisTemplate.opsForSet().add(redisKey, discussPostId);
77 | }
78 |
79 | return "redirect:/discuss/detail/" + discussPostId;
80 | }
81 |
82 | }
83 |
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/src/main/java/com/nowcoder/community/quartz/PostScoreRefreshJob.java:
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1 | package com.nowcoder.community.quartz;
2 |
3 | import com.nowcoder.community.entity.DiscussPost;
4 | import com.nowcoder.community.service.ElasticsearchService;
5 | import com.nowcoder.community.service.DiscussPostService;
6 | import com.nowcoder.community.service.LikeService;
7 | import com.nowcoder.community.util.CommunityConstant;
8 | import com.nowcoder.community.util.RedisKeyUtil;
9 | import org.quartz.Job;
10 | import org.quartz.JobExecutionContext;
11 | import org.quartz.JobExecutionException;
12 | import org.slf4j.Logger;
13 | import org.slf4j.LoggerFactory;
14 | import org.springframework.beans.factory.annotation.Autowired;
15 | import org.springframework.data.redis.core.BoundSetOperations;
16 | import org.springframework.data.redis.core.RedisTemplate;
17 |
18 | import java.text.ParseException;
19 | import java.text.SimpleDateFormat;
20 | import java.util.Date;
21 |
22 | public class PostScoreRefreshJob implements Job, CommunityConstant {
23 |
24 | private static final Logger logger = LoggerFactory.getLogger(PostScoreRefreshJob.class);
25 |
26 | @Autowired
27 | private RedisTemplate redisTemplate;
28 |
29 | @Autowired
30 | private DiscussPostService discussPostService;
31 |
32 | @Autowired
33 | private LikeService likeService;
34 |
35 | @Autowired
36 | private ElasticsearchService elasticsearchService;
37 |
38 | // Community纪元
39 | private static final Date epoch;
40 |
41 | //初始化Community纪元常量
42 | static {
43 | try {
44 | epoch = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse("2021-01-07 00:00:00");
45 | } catch (ParseException e) {
46 | throw new RuntimeException("初始化Community纪元失败!", e);
47 | }
48 | }
49 |
50 | @Override
51 | public void execute(JobExecutionContext context) throws JobExecutionException {
52 | String redisKey = RedisKeyUtil.getPostScoreKey();
53 | BoundSetOperations operations = redisTemplate.boundSetOps(redisKey);
54 |
55 | if (operations.size() == 0) {
56 | logger.info("[任务取消] 没有需要刷新的帖子!");
57 | return;
58 | }
59 |
60 | logger.info("[任务开始] 正在刷新帖子分数: " + operations.size());
61 | while (operations.size() > 0) {
62 | this.refresh((Integer) operations.pop());
63 | }
64 | logger.info("[任务结束] 帖子分数刷新完毕!");
65 | }
66 |
67 | private void refresh(int postId) {
68 | DiscussPost post = discussPostService.findDiscussPostById(postId);
69 |
70 | if (post == null) {
71 | logger.error("该帖子不存在: id = " + postId);
72 | return;
73 | }
74 |
75 | // 是否精华
76 | boolean wonderful = post.getStatus() == 1;
77 | // 评论数量
78 | int commentCount = post.getCommentCount();
79 | // 帖子点赞数量(不包含帖子中的评论)
80 | long likeCount = likeService.findEntityLikeCount(ENTITY_TYPE_POST, postId);
81 |
82 | // 计算权重
83 | double w = (wonderful ? 75 : 0) + commentCount * 10 + likeCount * 2;
84 | // 分数 = 帖子权重 + 距离天数 log函数特点：随着x增加，y增加越来越慢
85 | //getTime()得到long型，越新发布的帖子越有可能成为热帖
86 | double score = Math.log10(Math.max(w, 1))
87 | + (post.getCreateTime().getTime() - epoch.getTime()) / (1000 * 3600 * 24);
88 | // 更新帖子分数
89 | discussPostService.updateScore(postId, score);
90 | // 同步搜索数据
91 | post.setScore(score);
92 | elasticsearchService.saveDiscussPost(post);
93 | }
94 |
95 | }
96 |
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/src/main/java/com/nowcoder/community/service/DataService.java:
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1 | package com.nowcoder.community.service;
2 |
3 | import com.nowcoder.community.util.RedisKeyUtil;
4 | import org.springframework.beans.factory.annotation.Autowired;
5 | import org.springframework.dao.DataAccessException;
6 | import org.springframework.data.redis.connection.RedisConnection;
7 | import org.springframework.data.redis.connection.RedisStringCommands;
8 | import org.springframework.data.redis.core.RedisCallback;
9 | import org.springframework.data.redis.core.RedisTemplate;
10 | import org.springframework.stereotype.Service;
11 |
12 | import java.text.SimpleDateFormat;
13 | import java.util.ArrayList;
14 | import java.util.Calendar;
15 | import java.util.Date;
16 | import java.util.List;
17 |
18 | @Service
19 | public class DataService {
20 |
21 | @Autowired
22 | private RedisTemplate redisTemplate;
23 |
24 | private SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd");
25 |
26 | // 将指定的IP计入UV
27 | public void recordUV(String ip) {
28 | String redisKey = RedisKeyUtil.getUVKey(df.format(new Date()));
29 | redisTemplate.opsForHyperLogLog().add(redisKey, ip);
30 | }
31 |
32 | // 统计指定日期范围内的UV
33 | public long calculateUV(Date start, Date end) {
34 | if (start == null || end == null) {
35 | throw new IllegalArgumentException("参数不能为空!");
36 | }
37 |
38 | // 整理该日期范围内的key
39 | List
21 |
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/src/test/java/com/nowcoder/community/MapperTests.java:
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1 | package com.nowcoder.community;
2 |
3 | import com.nowcoder.community.dao.LoginTicketMapper;
4 | import com.nowcoder.community.entity.DiscussPost;
5 | import com.nowcoder.community.entity.LoginTicket;
6 | import com.nowcoder.community.entity.User;
7 | import com.nowcoder.community.dao.DiscussPostMapper;
8 | import com.nowcoder.community.dao.UserMapper;
9 | import org.junit.Test;
10 | import org.junit.runner.RunWith;
11 | import org.springframework.beans.factory.annotation.Autowired;
12 | import org.springframework.boot.test.context.SpringBootTest;
13 | import org.springframework.test.context.ContextConfiguration;
14 | import org.springframework.test.context.junit4.SpringRunner;
15 |
16 | import java.util.Date;
17 | import java.util.List;
18 | import java.util.UUID;
19 |
20 | @RunWith(SpringRunner.class)
21 | @SpringBootTest
22 | @ContextConfiguration(classes = CommunityApplication.class)
23 | public class MapperTests {
24 |
25 | @Autowired
26 | private UserMapper userMapper;
27 | @Autowired
28 | private DiscussPostMapper discussPostMapper;
29 | @Autowired
30 | private LoginTicketMapper loginTicketMapper;
31 |
32 | @Test
33 | public void testSelectUser() {
34 | User user = userMapper.selectById(101);
35 | System.out.println(user);
36 |
37 | user = userMapper.selectByName("liubei");
38 | System.out.println(user);
39 |
40 | user = userMapper.selectByEmail("nowcoder101@sina.com");
41 | System.out.println(user);
42 | }
43 |
44 | @Test
45 | public void testInsertUser() {
46 | User user = new User();
47 | user.setUsername("test");
48 | user.setPassword("123456");
49 | user.setSalt("abc");
50 | user.setEmail("test@qq.com");
51 | user.setHeaderUrl("http://www.nowcoder.com/101.png");
52 | user.setCreateTime(new Date());
53 |
54 | int rows=userMapper.insertUser(user);
55 | System.out.println(rows);
56 | System.out.println(user.getId());
57 | }
58 |
59 | @Test
60 | public void updateUser() {
61 | int rows=userMapper.updateStatus(150, 1);
62 | System.out.println(rows);
63 |
64 | rows = userMapper.updateHeader(150, "http://www.nowcoder.com/102.png");
65 | System.out.println(rows);
66 |
67 | rows = userMapper.updatePassword(150, "hello");
68 | System.out.println(rows);
69 | }
70 |
71 | @Test
72 | public void testSelectPosts() {
73 | List
21 |
72 |
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30 |
31 |
32 |
24 |
26 | 系统通知
25 |
27 |
28 |
29 | -
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35 | 64 |
65 |
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/src/main/resources/templates/site/login.html:
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23 | 80 |
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24 |
26 | 来自 落基山脉下的闲人 的私信
25 |
27 |
28 |
29 |
30 | -
76 |
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77 |
78 |
79 | 80 |
81 |92 |82 | 落基山脉下的闲人 83 | 2019-04-25 15:49:32 84 | 87 |88 |89 | 君不见, 黄河之水天上来, 奔流到海不复回! 90 |91 |
93 |