实现单文件删除

src/main/java/com/fjy/spring/controller/DeleteController.java

@@ -0,0 +1,140 @@
+package com.fjy.spring.controller;
+
+import com.fjy.spring.domain.TbFile;
+import com.fjy.spring.enums.ResultEnum;
+import com.fjy.spring.exception.UserException;
+import com.fjy.spring.service.FileService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import java.io.File;
+
+@Controller
+public class DeleteController {
+    @Autowired
+    private FileService fileService;//文件相关数据库操作
+
+    @GetMapping("/home/findfile")
+    @ResponseBody
+    public String findFilePath(@RequestParam(value = "fileid") Integer fileid){
+        TbFile tbFile = new TbFile();
+        tbFile.setColfileid(fileid);
+        TbFile resfile = fileService.findFileById(tbFile);
+        return  resfile.getColfilepath();
+    }
+    /**
+     * 删除文件，可以是文件或文件夹
+     */
+    @RequestMapping("/home/filedelete")
+    @ResponseBody
+    public void delete(@RequestParam(value = "fileid") Integer fileid)throws Exception {
+        TbFile tbFile = new TbFile();
+        tbFile.setColfileid(fileid);
+        TbFile resfile = fileService.findFileById(tbFile);
+        File filepath = new File(resfile.getColfilepath());
+        if (!filepath.exists()) {
+            System.out.println("删除文件失败:" + resfile.getColfilename() + "不存在！");
+        } else {
+            if (filepath.isFile()){
+                deleteFile(resfile.getColfilepath(),resfile.getColfileid());
+                new UserException(ResultEnum.SUCCESS);
+            }
+            else
+                deleteDirectory(resfile.getColfilepath());
+        }
+
+    }
+
+    /**
+     * 删除单个文件
+     */
+    public boolean deleteFile(String fileName,Integer fileid) {
+        File file = new File(fileName);
+        TbFile tbFile = new TbFile();
+        tbFile.setColfileid(fileid);
+        // 如果文件路径所对应的文件存在，并且是一个文件，则直接删除
+        if (file.exists() && file.isFile()) {
+            if (file.delete()) {
+                fileService.deleteFileById(tbFile);
+                System.out.println("删除单个文件" + fileName + "成功！");
+                return true;
+            } else {
+                System.out.println("删除单个文件" + fileName + "失败！");
+                return false;
+            }
+        } else {
+            System.out.println("删除单个文件失败：" + fileName + "不存在！");
+            return false;
+        }
+    }
+
+    /**
+     * 删除目录及目录下的文件
+     *功能暂时不开放
+     * @param path
+     *            要删除的目录的文件路径
+     * @return 目录删除成功返回true，否则返回false
+     */
+    public boolean deleteDirectory(String path) {
+        /*// 如果dir不以文件分隔符结尾，自动添加文件分隔符
+        if (!dir.endsWith(File.separator))
+            dir = dir + File.separator;
+        File dirFile = new File(dir);
+        // 如果dir对应的文件不存在，或者不是一个目录，则退出
+        if ((!dirFile.exists()) || (!dirFile.isDirectory())) {
+            System.out.println("删除目录失败：" + dir + "不存在！");
+            return false;
+        }
+        boolean flag = true;
+        // 删除文件夹中的所有文件包括子目录
+        File[] files = dirFile.listFiles();
+        for (int i = 0; i < files.length; i++) {
+            // 删除子文件
+            if (files[i].isFile()) {
+                TbFile tbFile = new TbFile();
+                tbFile.setColfilename(files[i].getName());
+                fileService.deleteFileById(tbFile);
+                flag = deleteFile(files[i].getAbsolutePath());
+                if (!flag)
+                    break;
+            }
+            // 删除子目录
+            else if (files[i].isDirectory()) {
+                flag = deleteDirectory(files[i]
+                        .getAbsolutePath());
+                if (!flag)
+                    break;
+            }
+        }
+        if (!flag) {
+            System.out.println("删除目录失败！");
+            return false;
+        }
+        // 删除当前目录
+        if (dirFile.delete()) {
+            System.out.println("删除目录" + dir + "成功！");
+            return true;
+        } else {
+            return false;
+        }*/
+
+        /*File dir=new File(path);
+        if(dir.exists()){
+            File[] tmp=dir.listFiles();
+            for(int i=0;i<tmp.length;i++){
+                if(tmp[i].isDirectory()){
+                    deleteDirectory(path+"/"+tmp[i].getName());
+                }
+                 else{
+                    tmp[i].delete();
+                }
+            }
+            dir.delete();
+        }*/
+        return true;
+    }
+}

src/main/java/com/fjy/spring/repository/TbFileRepository.java

@@ -3,8 +3,9 @@ package com.fjy.spring.repository;
 import com.fjy.spring.domain.TbFile;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.List;
 import java.util.Optional;
 
 public interface TbFileRepository extends JpaRepository<TbFile,Integer>{
-    public Optional<TbFile> findByColfilename(String name);
+    public List<TbFile> findByColfilename(String name);
 }

src/main/java/com/fjy/spring/service/FileService.java

@@ -19,10 +19,10 @@ public class FileService {
         return false;
     }
 
-    public TbFile findFile(TbFile tbFile){
+    public List<TbFile> findFile(TbFile tbFile){
-        TbFile file = (TbFile) tbFileRepository.findByColfilename(tbFile.getColfilename()).get();
+        List<TbFile> files =  tbFileRepository.findByColfilename(tbFile.getColfilename());
-        if (file!=null)
+        if (files!=null)
-            return file;
+            return files;
         return null;
     }
 
@@ -30,10 +30,17 @@ public class FileService {
         return tbFileRepository.findAll();
     }
 
-    public TbFile findFileById(TbFile tbFile){
+    public TbFile findFileById(TbFile tbFile)
+    {
         return tbFileRepository.findById(tbFile.getColfileid()).get();
     }
 
+    public void deleteFile(TbFile file){
+        tbFileRepository.delete(file);
+    }
 
+    public void deleteFileById(TbFile file){
+        tbFileRepository.deleteById(file.getColfileid());
+    }
 
 }

src/main/resources/static/js/admin.js

@@ -61,7 +61,7 @@ var Main = {
     },
     methods: {
         ClickToJump(targe){
-            window.location.href="http://localhost:8080/cms/" + targe;
+            window.location.href="http://localhost:8080/cms/home/" + targe;
         },
         handleSelect(key, keyPath) {
             console.log(key, keyPath);

src/main/resources/static/loginTest.html

@@ -108,7 +108,7 @@
     </el-row>
 </div>
 <script src="js/loginstyle.js"></script>
-<script src="js/msg.js"></script>
+<script src="js/common.js"></script>
 <!--<body>
 &lt;!&ndash;<center>
     <h1>登录系统</h1>

src/main/resources/templates/home/about.html

@@ -48,7 +48,7 @@
         </el-container>
     </el-container>
 </div>
-<script th:src="@{js/homePage.js}"></script>
+<script th:src="@{/js/homePage.js}"></script>
-<script th:src="@{js/msg.js}"></script>
+<script th:src="@{/js/common.js}"></script>
 </body>
 </html>

src/main/resources/templates/home/admin.html

@@ -90,7 +90,7 @@
         </el-container>
     </el-container>
 </div>
-<script th:src="@{../js/admin.js}"></script>
+<script th:src="@{/js/admin.js}"></script>
-<script th:src="@{../js/msg.js}"></script>
+<script th:src="@{/js/common.js}"></script>
 </body>
 </html>

src/main/resources/templates/home/feedback.html

@@ -37,7 +37,7 @@
         </el-container>
     </el-container>
 </div>
-<script th:src="@{js/homePage.js}"></script>
+<script th:src="@{/js/homePage.js}"></script>
-<script th:src="@{js/msg.js}"></script>
+<script th:src="@{/js/common.js}"></script>
 </body>
 </html>

src/main/resources/templates/home/home.html

@@ -304,7 +304,7 @@
         </el-container>
     </el-container>
 </div>
-<script th:src="@{js/homePage.js}"></script>
+<script th:src="@{/js/homePage.js}"></script>
-<script th:src="@{js/msg.js}"></script>
+<script th:src="@{/js/common.js}"></script>
 </body>
 </html>

src/main/resources/templates/home/home2.html

@@ -318,6 +318,6 @@
     </el-container>
 </div>
 <script src="../../static/js/homePage.js"></script>
-<script src="../../static/js/msg.js"></script>
+<script src="../../static/js/common.js"></script>
 </body>
 </html>

src/main/resources/templates/home/homework.html

@@ -124,6 +124,6 @@
     </el-container>
 </div>
 <script src="../../static/js/homework.js"></script>
-<script src="../../static/js/msg.js"></script>
+<script src="../../static/js/common.js"></script>
 </body>
 </html>

src/main/resources/templates/home/managecourse.html

@@ -81,6 +81,6 @@
     </el-container>
 </div>
 <script th:src="@{/js/managecourse.js}"></script>
-<script th:src="@{/js/msg.js}"></script>
+<script th:src="@{/js/common.js}"></script>
 </body>
 </html>

src/main/resources/templates/home/manageuser.html

@@ -96,6 +96,6 @@
     </el-container>
 </div>
 <script src="../../static/js/manageuser.js"></script>
-<script src="../../static/js/msg.js"></script>
+<script src="../../static/js/common.js"></script>
 </body>
 </html>

src/main/resources/templates/home/user.html

@@ -149,6 +149,6 @@
     </el-container>
 </div>
 <script src="../../static/js/user.js"></script>
-<script src="../../static/js/msg.js"></script>
+<script src="../../static/js/common.js"></script>
 </body>
 </html>