fix 添加成绩时报错的bug

server-db/src/main/java/cn/exploring/engine/server/db/service/ClassService.java

@@ -84,7 +84,7 @@ public class ClassService {
     public String addClassInfo(String className) {
         List<ClassInfo> classInfoList = selectClass(className, null);
         if (classInfoList != null && classInfoList.size() != 0) {
-            return "fail 当前已存在该班级";
+            return "当前已存在该班级";
         }
         ClassInfo classInfo = new ClassInfo();
         LocalDateTime now = LocalDateTime.now();
@@ -93,7 +93,7 @@ public class ClassService {
         classInfo.setDeleted(false);
         classInfo.setClassName(className);
         classInfoMapper.insertSelective(classInfo);
-        return "OK 添加班级成功";
+        return null;
     }
 
     public void updateClassInfo(ClassInfo classInfo) {

server-wx-api/src/main/java/cn/exploring/engine/server/wx/web/ClassController.java

@@ -26,8 +26,8 @@ public class ClassController {
 
     @GetMapping("addClass")
     public Object addClass(@RequestParam String className) {
-        String status = classService.addClassInfo(className);
-        return status.contains("OK") ? ResponseUtil.ok(status) : ResponseUtil.fail(502, status);
+        String errMsg = classService.addClassInfo(className);
+        return StringUtils.isNotBlank(errMsg) ? ResponseUtil.fail(402, errMsg) : ResponseUtil.ok("成功");
     }
 
     @PostMapping("updateClass")