update wechat binding

src/main/java/com/qmth/exam/reserve/service/impl/StudentServiceImpl.java

@@ -163,20 +163,28 @@ public class StudentServiceImpl extends ServiceImpl<StudentDao, StudentEntity> i
             throw new StatusException("学生信息不存在");
         }
 
-        if (StringUtils.isNotEmpty(stu.getOpenId())) {
-            throw new StatusException("微信账号已绑定");
-        }
-
         if (StringUtils.isEmpty(req.getOpenId())) {
             throw new StatusException("微信OID不能为空");
         }
 
+        LambdaQueryWrapper<StudentEntity> wrapper = new LambdaQueryWrapper<>();
+        wrapper.eq(StudentEntity::getApplyTaskId, stu.getApplyTaskId());
+        wrapper.eq(StudentEntity::getOpenId, req.getOpenId());
+        if (count(wrapper) > 0) {
+            throw new StatusException("微信号已被其他账号绑定");
+        }
+
+        if (StringUtils.isNotEmpty(stu.getOpenId()) && req.getOpenId().equals(stu.getOpenId())) {
+            log.warn("微信账号已绑定！studentId:{} openId:{} uid:{}", req.getStudentId(), req.getOpenId(), req.getUid());
+            return;
+        }
+
         LambdaUpdateWrapper<StudentEntity> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.set(StudentEntity::getOpenId, req.getOpenId());
         updateWrapper.set(StudentEntity::getUid, req.getUid());
         updateWrapper.eq(StudentEntity::getId, req.getStudentId());
         this.update(updateWrapper);
-        log.info("[WECHAT_BINDING] studentId:{} openId:{} uid:{}", req.getStudentId(), req.getOpenId(), req.getUid());
+        log.warn("微信账号绑定成功！studentId:{} openId:{} uid:{}", req.getStudentId(), req.getOpenId(), req.getUid());
     }
 
     @Transactional
@@ -196,7 +204,7 @@ public class StudentServiceImpl extends ServiceImpl<StudentDao, StudentEntity> i
         updateWrapper.set(StudentEntity::getUid, null);
         updateWrapper.eq(StudentEntity::getId, studentId);
         this.update(updateWrapper);
-        log.info("[WECHAT_UNBIND] studentId:{} openId:{} uid:{}", stu.getId(), stu.getOpenId(), stu.getUid());
+        log.warn("微信账号解绑成功！studentId:{} openId:{} uid:{}", stu.getId(), stu.getOpenId(), stu.getUid());
     }
 
     @Override