完成了文件上传的Controller

src/main/java/org/cmh/backend/CourseManagement/controller/FileController.java

@@ -1,20 +1,49 @@
 package org.cmh.backend.CourseManagement.controller;
 
+import org.cmh.backend.CourseManagement.dto.UploadFileResponse;
 import org.springframework.core.io.UrlResource;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.*;
-import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.core.io.Resource;
+import org.springframework.web.multipart.MultipartFile;
 
 
+import java.io.IOException;
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 
+@RestController
+@RequestMapping("/courses")
 public class FileController {
     private static final String UPLOAD_DIR = "uploads/";
 
+    @PostMapping("/upload")
+    public ResponseEntity<UploadFileResponse> uploadFile(@RequestParam("file") MultipartFile file) {
+        if (file.isEmpty()) {
+            return new ResponseEntity<>(new UploadFileResponse("文件不能为空", null), HttpStatus.BAD_REQUEST);
+        }
+
+        try {
+            // 确保上传目录存在
+            Path uploadDirPath = Paths.get(UPLOAD_DIR);
+            if (!Files.exists(uploadDirPath)) {
+                Files.createDirectories(uploadDirPath);
+            }
+
+            // 生成文件路径
+            byte[] bytes = file.getBytes();
+            Path path = Paths.get(UPLOAD_DIR + file.getOriginalFilename());
+            Files.write(path, bytes);
+
+            // 返回成功信息
+            return new ResponseEntity<>(new UploadFileResponse("文件上传成功", "/api/courses/files/" + file.getOriginalFilename()), HttpStatus.OK);
+        } catch (IOException e) {
+            return new ResponseEntity<>(new UploadFileResponse("文件上传失败", null), HttpStatus.INTERNAL_SERVER_ERROR);
+        }
+    }
     @GetMapping("/files/{filename}")
     public ResponseEntity<Resource> getFile(@PathVariable String filename) {
         try {