update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/StudentManageServiceImpl.java

@@ -313,6 +313,9 @@ public class StudentManageServiceImpl implements StudentManageService {
             throw new BizException("参数校验失败");
         }
         SysUser sysUser1 = sysUserFeignService.queryUserByMobile(sysUser.getPhone());
+        if(sysUser1 == null){
+            throw new BizException("用户不存在");
+        }
         if(!userId.equals(sysUser1.getId())){
             throw new BizException("手机号已被占用");
         }