├── AdminProductController.java
├── README.md
├── 用户首页.png
├── 登陆页面.png
└── 管理员页面.png


/AdminProductController.java:
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  1 | package com.dmh.web.admin;
  2 | 
  3 | import org.apache.commons.lang.StringUtils;
  4 | import org.springframework.beans.factory.annotation.Autowired;
  5 | import org.springframework.data.domain.PageRequest;
  6 | import org.springframework.data.domain.Pageable;
  7 | import org.springframework.stereotype.Controller;
  8 | import org.springframework.web.bind.annotation.*;
  9 | import org.springframework.web.multipart.MultipartFile;
 10 | 
 11 | import com.dmh.entity.Classification;
 12 | import com.dmh.entity.Product;
 13 | import com.dmh.entity.pojo.ResultBean;
 14 | import com.dmh.service.ClassificationService;
 15 | import com.dmh.service.ProductService;
 16 | import com.dmh.utils.FileUtil;
 17 | 
 18 | import javax.servlet.http.HttpServletRequest;
 19 | import javax.servlet.http.HttpServletResponse;
 20 | import java.io.File;
 21 | import java.io.IOException;
 22 | import java.net.URLEncoder;
 23 | import java.nio.file.Files;
 24 | import java.nio.file.Paths;
 25 | import java.util.Date;
 26 | import java.util.List;
 27 | import java.util.Map;
 28 | 
 29 | @Controller
 30 | @RequestMapping("/admin/product")
 31 | public class AdminProductController {
 32 |     @Autowired
 33 |     private ProductService productService;
 34 |     @Autowired
 35 |     private ClassificationService classificationService;
 36 | 
 37 |     @RequestMapping("/toList.html")
 38 |     public String toList() {
 39 |         return "admin/product/list";
 40 |     }
 41 | 
 42 |     @RequestMapping("/toAdd.html")
 43 |     public String toAdd() {
 44 |         return "admin/product/add";
 45 |     }
 46 | 
 47 |     @RequestMapping("/toEdit.html")
 48 |     public String toEdit(int id, Map<String, Object> map) {
 49 |         Product product = productService.findById(id);
 50 |         Classification classification = classificationService.findById(product.getCsid());
 51 |         product.setCategorySec(classification);
 52 |         map.put("product", product);
 53 |         return "admin/product/edit";
 54 |     }
 55 | 
 56 |     @ResponseBody
 57 |     @RequestMapping("/list.do")
 58 |     public ResultBean<List<Product>> listProduct(int pageindex,
 59 |                                                  @RequestParam(value = "pageSize", defaultValue = "15") int pageSize) {
 60 |         Pageable pageable = new PageRequest(pageindex, pageSize, null);
 61 |         List<Product> list = productService.findAll(pageable).getContent();
 62 |         return new ResultBean<>(list);
 63 |     }
 64 | 
 65 |     @ResponseBody
 66 |     @RequestMapping("/getTotal")
 67 |     public ResultBean<Integer> getTotal() {
 68 |         Pageable pageable = new PageRequest(1, 15, null);
 69 |         int total = (int) productService.findAll(pageable).getTotalElements();
 70 |         return new ResultBean<>(total);
 71 |     }
 72 | 
 73 |     @RequestMapping("/del.do")
 74 |     @ResponseBody
 75 |     public ResultBean<Boolean> del(int id) {
 76 |         productService.delById(id);
 77 |         return new ResultBean<>(true);
 78 |     }
 79 | 
 80 |     @RequestMapping(method = RequestMethod.POST, value = "/add.do")
 81 |     public void add(MultipartFile image,
 82 |                     String title,
 83 |                     Double marketPrice,
 84 |                     Double shopPrice,
 85 |                     int isHot,
 86 |                     String desc,
 87 |                     int csid,
 88 |                     HttpServletRequest request,
 89 |                     HttpServletResponse response) throws Exception {
 90 |         Product product = new Product();
 91 |         product.setTitle(title);
 92 |         product.setMarketPrice(marketPrice);
 93 |         product.setShopPrice(shopPrice);
 94 |         product.setDesc(desc);
 95 |         product.setIsHot(isHot);
 96 |         product.setCsid(csid);
 97 |         product.setPdate(new Date());
 98 |         String imgUrl = FileUtil.saveFile(image);
 99 |         product.setImage(imgUrl);
100 |         int id = productService.create(product);
101 |         if (id <= 0) {
102 |             request.setAttribute("message", "添加失败！");
103 |             request.getRequestDispatcher("toAdd.html").forward(request, response);
104 |         } else {
105 |             request.getRequestDispatcher("toEdit.html?id=" + id).forward(request, response);
106 |         }
107 |     }
108 | 
109 | 
110 |     @RequestMapping(method = RequestMethod.POST, value = "/update.do")
111 |     public void update(int id,
112 |                        String title,
113 |                        Double marketPrice,
114 |                        Double shopPrice,
115 |                        String desc,
116 |                        int csid,
117 |                        int isHot,
118 |                        MultipartFile image,
119 |                        HttpServletRequest request,
120 |                        HttpServletResponse response) throws Exception {
121 |         Product product = productService.findById(id);
122 |         product.setTitle(title);
123 |         product.setMarketPrice(marketPrice);
124 |         product.setShopPrice(shopPrice);
125 |         product.setDesc(desc);
126 |         product.setIsHot(isHot);
127 |         product.setCsid(csid);
128 |         product.setPdate(new Date());
129 |         String imgUrl = FileUtil.saveFile(image);
130 |         if (StringUtils.isNotBlank(imgUrl)) {
131 |             product.setImage(imgUrl);
132 |         }
133 |         boolean flag = false;
134 |         try {
135 |             productService.update(product);
136 |             flag = true;
137 |         } catch (Exception e) {
138 |             throw new Exception(e);
139 |         }
140 |         if (!flag) {
141 |             request.setAttribute("message", "更新失败！");
142 |         }
143 |         response.sendRedirect("toList.html");
144 |     }
145 | 
146 |     @RequestMapping(method = RequestMethod.GET, value = "/img/{filename:.+}")
147 |     public void getImage(@PathVariable(name = "filename", required = true) String filename,
148 |                          HttpServletResponse res) throws IOException {
149 |         File file = new File("file/" + filename);
150 |         if (file != null && file.exists()) {
151 |             res.setHeader("content-type", "application/octet-stream");
152 |             res.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, "UTF-8"));
153 |             res.setContentLengthLong(file.length());
154 |             Files.copy(Paths.get(file.toURI()), res.getOutputStream());
155 |         }
156 |     }
157 | 
158 | 
159 | }
160 | 


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/README.md:
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1 | # java-kaoshi
2 | 基于springboot+vue实现的java在线考试系统，系统自动生成试卷，有用户、教师、管理员三种角色 。用户功能：登录注册、个人中心编辑、搜索功能、在线考试、在线留言等；教师功能：评阅试卷、编辑试卷试题等；管理员功能：考试管理、题库管理、成绩查询、学生管理、留言管理、教师管理。系统页面设计良好、内容丰富、功能齐全，适合用做课设和毕设等学习。详细请点击仓库名称进入查看网站前后台图片，感兴趣的小伙伴请联系Q：2364821220
3 | # 网站截图
4 | ![image](https://github.com/hzl0898/java-kaoshi/blob/main/用户首页.png)
5 | ![image](https://github.com/hzl0898/java-kaoshi/blob/main/管理员页面.png)
6 | 


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/用户首页.png:
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https://raw.githubusercontent.com/hzl0898/java-kaoshi/352569e85eaf9f8ddb004219925737d42d5a7b1e/用户首页.png


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/登陆页面.png:
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https://raw.githubusercontent.com/hzl0898/java-kaoshi/352569e85eaf9f8ddb004219925737d42d5a7b1e/登陆页面.png


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/管理员页面.png:
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https://raw.githubusercontent.com/hzl0898/java-kaoshi/352569e85eaf9f8ddb004219925737d42d5a7b1e/管理员页面.png


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