'+
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 |
--------------------------------------------------------------------------------
/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 | /**
7 | * @author coolsen
8 | * @version 1.0.0
9 | * @ClassName LoginTicketMapper.java
10 | * @Description 登录mapper,不推荐使用，目前使用redis存储ticket
11 | * @createTime 4/29/2020 6:16 PM
12 | */
13 |
14 | @Mapper
15 | @Deprecated
16 | public interface LoginTicketMapper {
17 |
18 | @Insert({
19 | "insert into login_ticket(user_id,ticket,status,expired) ",
20 | "values(#{userId},#{ticket},#{status},#{expired})"
21 | })
22 | @Options(useGeneratedKeys = true, keyProperty = "id")
23 | int insertLoginTicket(LoginTicket LoginTicket);
24 |
25 | @Select({
26 | "select id,user_id,ticket,status,expired ",
27 | "from login_ticket where ticket=#{ticket}"
28 | })
29 | LoginTicket selectByTicket(String ticket);
30 |
31 | @Update({
32 | ""
38 | })
39 | int updateStatus(String ticket, int status);
40 | }
41 |
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/src/test/java/com/nowcoder/community/MailTests.java:
--------------------------------------------------------------------------------
1 | package com.nowcoder.community;
2 |
3 | import com.nowcoder.community.util.MailClient;
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 | import org.thymeleaf.TemplateEngine;
11 | import org.thymeleaf.context.Context;
12 |
13 | @RunWith(SpringRunner.class)
14 | @SpringBootTest
15 | @ContextConfiguration(classes = CommunityApplication.class)
16 | public class MailTests {
17 |
18 | @Autowired
19 | private MailClient mailClient;
20 |
21 | @Autowired
22 | private TemplateEngine templateEngine;
23 |
24 | @Test
25 | public void testTextMail() {
26 | mailClient.sendMail("anotherpony@163.com", "TEST", "Welcome.");
27 | }
28 |
29 | @Test
30 | public void testHtmlMail() {
31 | Context context = new Context();
32 | context.setVariable("username", "sunday");
33 |
34 | String content = templateEngine.process("/mail/demo", context);
35 | System.out.println(content);
36 |
37 | mailClient.sendMail("anotherpony@163.com", "HTML", content);
38 | }
39 |
40 | }
41 |
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/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 | /**
16 | * @author coolsen
17 | * @version 1.0.0
18 | * @ClassName DatabaseEndpoint.java
19 | * @Description Database Endpoint for actuator
20 | * @createTime 2020/5/22 16:37
21 | */
22 |
23 | @Component
24 | @Endpoint(id = "database")
25 | public class DatabaseEndpoint {
26 |
27 | private static final Logger logger = LoggerFactory.getLogger(DatabaseEndpoint.class);
28 |
29 | @Autowired
30 | private DataSource dataSource;
31 |
32 | @ReadOperation
33 | public String checkConnection(){
34 | try (
35 | Connection conn = dataSource.getConnection();
36 | ) {
37 | return CommunityUtil.getJSONString(0, "获取连接成功!");
38 | } catch (SQLException e) {
39 | logger.error("获取连接失败:" + e.getMessage());
40 | return CommunityUtil.getJSONString(1, "获取连接失败!");
41 | }
42 | }
43 | }
44 |
--------------------------------------------------------------------------------
/src/main/java/com/nowcoder/community/controller/interceptor/AlphaInterceptor.java:
--------------------------------------------------------------------------------
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 |
--------------------------------------------------------------------------------
/src/main/java/com/nowcoder/community/config/RedisConfig.java:
--------------------------------------------------------------------------------
1 | package com.nowcoder.community.config;
2 |
3 | import org.springframework.context.annotation.Bean;
4 | import org.springframework.context.annotation.Configuration;
5 | import org.springframework.data.redis.connection.RedisConnectionFactory;
6 | import org.springframework.data.redis.core.RedisTemplate;
7 | import org.springframework.data.redis.serializer.RedisSerializer;
8 | import org.springframework.data.redis.serializer.StringRedisSerializer;
9 |
10 | /**
11 | * @author coolsen
12 | * @version 1.0.0
13 | * @ClassName RedisConfig.java
14 | * @Description Redis Config
15 | * @createTime 5/9/2020 12:04 PM
16 | */
17 |
18 | @Configuration
19 | public class RedisConfig {
20 |
21 | @Bean
22 | public RedisTemplate'+
8 | ''+
22 | '
'+
23 | '8 | 账号密码: aaa/aaa 9 | ## 技术选型 10 |  11 | 12 | ## 功能简介 13 | * 使用Spring Security 做权限控制，替代拦截器的拦截控制，并使用自己的认证方案替代Security 认证流程，使权限认证和控制更加方便灵活。 14 | * 使用Redis的set实现点赞，zset实现关注，并使用Redis存储登录ticket和验证码，解决分布式session问题。 15 | * 使用Redis高级数据类型HyperLogLog统计UV(Unique Visitor),使用Bitmap统计DAU(Daily Active User)。 16 | * 使用Kafka处理发送评论、点赞和关注等系统通知，并使用事件进行封装，构建了强大的异步消息系统。 17 | * 使用Elasticsearch做全局搜索，并通过事件封装，增加关键词高亮显示等功能。 18 | * 对热帖排行模块，使用分布式缓存Redis和本地缓存Caffeine作为多级缓存，避免了缓存雪崩，将QPS提升了20倍(10-200)，大大提升了网站访问速度。并使用Quartz定时更新热帖排行。 19 | 20 | 21 | ## 开发环境 22 | 23 | | 工具 | 版本号 | 下载 | 24 | | ------------- | ------ | --------------------------------- | 25 | | JDK | 11 | https://openjdk.java.net/install/ | 26 | | Mysql | 5.7 | https://www.mysql.com/ | 27 | | Redis | 3.2 | https://redis.io/download | 28 | | Elasticsearch | 6.4.3 | https://www.elastic.co/downloads | 29 | | Kafka | 2.3.0 | https://kafka.apache.org/downloads | 30 | | nginx | 1.10 | http://nginx.org/en/download.html | 31 | ## 运行效果展示 32 | * 首页 33 |  34 | * 消息 35 |  36 | ## 后续更新点 37 | * 增加收藏功能 38 | * 增强对话框功能 39 | ## 相关资源 40 | [相关的教程](https://pan.baidu.com/s/1LjYYwJVsqNBxq69udsXMvA):网盘提取码：wxdd 41 | 42 | 有项目相关、求职等问题，可以加我微信交流，个人微信：kusengo，
43 |
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/src/main/java/com/nowcoder/community/controller/advice/ExceptionAdvice.java:
--------------------------------------------------------------------------------
1 | package com.nowcoder.community.controller.advice;
2 |
3 | import com.nowcoder.community.util.CommunityUtil;
4 | import org.slf4j.Logger;
5 | import org.slf4j.LoggerFactory;
6 | import org.springframework.stereotype.Controller;
7 | import org.springframework.web.bind.annotation.ControllerAdvice;
8 | import org.springframework.web.bind.annotation.ExceptionHandler;
9 |
10 | import javax.servlet.http.HttpServletRequest;
11 | import javax.servlet.http.HttpServletResponse;
12 | import java.io.IOException;
13 | import java.io.PrintWriter;
14 |
15 | /**
16 | * @author coolsen
17 | * @version 1.0.0
18 | * @ClassName ExceptionAdvice.java
19 | * @Description 统一处理异常的Controller配置类
20 | * @createTime 5/8/2020 9:34 PM
21 | */
22 |
23 | @ControllerAdvice(annotations = Controller.class)
24 | public class ExceptionAdvice {
25 |
26 | private static final Logger logger = LoggerFactory.getLogger(ExceptionAdvice.class);
27 |
28 | @ExceptionHandler({Exception.class})
29 | public void handleException(Exception e, HttpServletRequest request, HttpServletResponse response) throws IOException {
30 | logger.error("服务器发生异常: " + e.getMessage());
31 | for (StackTraceElement element : e.getStackTrace()) {
32 | logger.error(element.toString());
33 | }
34 |
35 | String xRequestedWith = request.getHeader("x-requested-with");
36 | //处理异步请求的方式
37 | if ("XMLHttpRequest".equals(xRequestedWith)) {
38 | response.setContentType("application/plain;charset=utf-8");//普通文本，浏览器会自动转换为json格式
39 | PrintWriter writer = response.getWriter();
40 | writer.write(CommunityUtil.getJSONString(1, "服务器异常!"));
41 | } else {
42 | response.sendRedirect(request.getContextPath() + "/error");
43 | }
44 | }
45 | }
46 |
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/src/main/resources/mapper/user-mapper.xml:
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1 |
2 |
5 |