fix: 新增学生时班级不回显 - StudentCreateRequest 支持 classId，创建时分配班级

Made-with: Cursor

reading-platform-frontend/src/views/school/students/StudentListView.vue

@@ -492,6 +492,10 @@ const resetForm = () => {
 const showAddModal = () => {
   isEdit.value = false;
   resetForm();
+  // 若当前筛选了班级，预填班级选择
+  if (selectedClassId.value) {
+    formState.classId = selectedClassId.value;
+  }
   modalVisible.value = true;
 };
 

reading-platform-java/src/main/java/com/reading/platform/controller/school/SchoolStudentController.java

@@ -34,7 +34,9 @@ public class SchoolStudentController {
     public Result<StudentResponse> createStudent(@Valid @RequestBody StudentCreateRequest request) {
         Long tenantId = SecurityUtils.getCurrentTenantId();
         Student student = studentService.createStudent(tenantId, request);
-        return Result.success(studentMapper.toVO(student));
+        StudentResponse vo = studentMapper.toVO(student);
+        vo.setClassId(request.getClassId());
+        return Result.success(vo);
     }
 
     @Operation(summary = "Update student")

reading-platform-java/src/main/java/com/reading/platform/dto/request/StudentCreateRequest.java

@@ -35,4 +35,7 @@ public class StudentCreateRequest {
     @Schema(description = "备注")
     private String notes;
 
+    @Schema(description = "所在班级 ID，创建后分配到该班级")
+    private Long classId;
+
 }

reading-platform-java/src/main/java/com/reading/platform/service/impl/StudentServiceImpl.java

@@ -58,6 +58,10 @@ public class StudentServiceImpl extends com.baomidou.mybatisplus.extension.servi
 
         studentMapper.insert(student);
 
+        if (request.getClassId() != null) {
+            classService.assignStudentToClass(student.getId(), request.getClassId(), tenantId);
+        }
+
         log.info("学生创建成功，ID: {}", student.getId());
         return student;
     }