更新了CourseController

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

@@ -1,67 +1,78 @@
 package org.cmh.backend.CourseManagement.controller;
 
+import jakarta.persistence.EntityNotFoundException;
+import org.cmh.backend.CourseManagement.dto.GetCourseListResponse;
+import org.cmh.backend.CourseManagement.dto.MessageResponse;
+import org.cmh.backend.CourseManagement.dto.CourseRequest;
 import org.cmh.backend.CourseManagement.model.Course;
 import org.cmh.backend.CourseManagement.service.CourseService;
+import org.cmh.backend.Utils.JwtVerify;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
-import org.springframework.web.multipart.MultipartFile;
-import org.springframework.http.HttpStatus;
-
-import java.util.List;
 
 @RestController
-@RequestMapping("/course")
+@RequestMapping("/courses")
 public class CourseController {
-
     @Autowired
     private CourseService courseService;
 
-    @PostMapping("/create")
+    @GetMapping
-    public ResponseEntity<String> createCourse(
+    @JwtVerify
-            @RequestParam("name") String name,
+    public ResponseEntity<GetCourseListResponse> getCoursesByRange(@RequestParam Integer start, @RequestParam Integer end, @RequestParam String token) {
-            @RequestParam("description") String description,
+        if (start >= end) {
-            @RequestParam("author") String author,
+            return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
-            @RequestParam("sortOrder") String sortOrder,
-            @RequestParam("coverImage") MultipartFile coverImage,
-            @RequestParam("video") MultipartFile video) {
-
-        Course createdCourse = courseService.createCourse(name, description, author, sortOrder, coverImage, video);
-        if (createdCourse == null) {
-            return new ResponseEntity<>("课程已存在", HttpStatus.BAD_REQUEST);
         }
-        return new ResponseEntity<>("课程创建成功", HttpStatus.OK);
+        long courseCount = courseService.getCourseCount();
+        return new ResponseEntity<>(new GetCourseListResponse(courseCount, courseService.getCoursesByRange(start, end)), HttpStatus.OK);
     }
 
-    @PutMapping("/edit/{id}")
+    @GetMapping("/{id}")
-    public ResponseEntity<String> updateCourse(
+    @JwtVerify
-            @PathVariable Long id,
+    public ResponseEntity<Course> getCoursePage(@PathVariable Long id, @RequestParam String token) {
-            @RequestParam("name") String name,
+        try {
-            @RequestParam("description") String description,
+            return new ResponseEntity<>(courseService.getCourseById(id), HttpStatus.OK);
-            @RequestParam("author") String author,
+        } catch (EntityNotFoundException e) {
-            @RequestParam("sortOrder") String sortOrder,
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
-            @RequestParam(value = "coverImage", required = false) MultipartFile coverImage,
-            @RequestParam(value = "video", required = false) MultipartFile video) {
-
-        Course updatedCourse = courseService.updateCourse(id, name, description, author, sortOrder, coverImage, video);
-        if (updatedCourse == null) {
-            return new ResponseEntity<>("课程未找到", HttpStatus.NOT_FOUND);
         }
-        return new ResponseEntity<>("课程修改成功", HttpStatus.OK);
     }
 
-    @DeleteMapping("/delete/{id}")
+    @PostMapping
-    public ResponseEntity<String> deleteCourse(@PathVariable Long id) {
+    @JwtVerify
-        boolean isDeleted = courseService.deleteCourse(id);
+    public ResponseEntity<MessageResponse> createCourse(@RequestBody CourseRequest request) {
-        if (!isDeleted) {
+        try {
-            return new ResponseEntity<>("课程未找到", HttpStatus.NOT_FOUND);
+            courseService.createCourse(request);
+        } catch (DataIntegrityViolationException e) {
+            return new ResponseEntity<>(new MessageResponse("创建失败，课程已存在或缺少字段"), HttpStatus.BAD_REQUEST);
+        } catch (Exception e) {
+            return new ResponseEntity<>(new MessageResponse("创建失败:" + e.getMessage()), HttpStatus.BAD_REQUEST);
         }
-        return new ResponseEntity<>("课程删除成功", HttpStatus.OK);
+        return new ResponseEntity<>(new MessageResponse("创建成功"), HttpStatus.CREATED);
     }
 
-    @GetMapping("/getAll")
+    @PutMapping("/{id}")
-    public ResponseEntity<List<Course>> getAllCourses() {
+    @JwtVerify
-        List<Course> courses = courseService.getAllCourses();
+    public ResponseEntity<MessageResponse> updateCourse(@PathVariable Long id, @RequestBody CourseRequest request) {
-        return new ResponseEntity<>(courses, HttpStatus.OK);
+        try {
+            courseService.updateCourse(id, request);
+        } catch (DataIntegrityViolationException e) {
+            return new ResponseEntity<>(new MessageResponse("修改失败，新标题已存在或缺少字段"), HttpStatus.BAD_REQUEST);
+        } catch (Exception e) {
+            return new ResponseEntity<>(new MessageResponse("修改失败:" + e.getMessage()), HttpStatus.BAD_REQUEST);
+        }
+        return new ResponseEntity<>(new MessageResponse("修改成功"), HttpStatus.OK);
+    }
+
+    @DeleteMapping("/{id}")
+    @JwtVerify
+    public ResponseEntity<MessageResponse> deleteCourse(@PathVariable Long id, @RequestParam String token) {
+        try {
+            courseService.deleteCourse(id);
+        } catch (EntityNotFoundException e) {
+            return new ResponseEntity<>(new MessageResponse("删除失败，课程不存在"), HttpStatus.BAD_REQUEST);
+        }
+        return new ResponseEntity<>(new MessageResponse("删除成功"), HttpStatus.OK);
     }
 }