add backend

backend/src/main/java/com/yoyuzh/cqu/CquController.java

@@ -0,0 +1,44 @@
+package com.yoyuzh.cqu;
+
+import com.yoyuzh.auth.CustomUserDetailsService;
+import com.yoyuzh.auth.User;
+import com.yoyuzh.common.ApiResponse;
+import io.swagger.v3.oas.annotations.Operation;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.security.core.userdetails.UserDetails;
+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.RestController;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/cqu")
+@RequiredArgsConstructor
+public class CquController {
+
+    private final CquDataService cquDataService;
+    private final CustomUserDetailsService userDetailsService;
+
+    @Operation(summary = "获取课表")
+    @GetMapping("/schedule")
+    public ApiResponse<List<CourseResponse>> schedule(@AuthenticationPrincipal UserDetails userDetails,
+                                                      @RequestParam String semester,
+                                                      @RequestParam String studentId) {
+        return ApiResponse.success(cquDataService.getSchedule(resolveUser(userDetails), semester, studentId));
+    }
+
+    @Operation(summary = "获取成绩")
+    @GetMapping("/grades")
+    public ApiResponse<List<GradeResponse>> grades(@AuthenticationPrincipal UserDetails userDetails,
+                                                   @RequestParam String semester,
+                                                   @RequestParam String studentId) {
+        return ApiResponse.success(cquDataService.getGrades(resolveUser(userDetails), semester, studentId));
+    }
+
+    private User resolveUser(UserDetails userDetails) {
+        return userDetails == null ? null : userDetailsService.loadDomainUser(userDetails.getUsername());
+    }
+}