feat

src/main/java/com/example/civilizedcity/service/impl/SysUserServiceImpl.java

         }
 
         SysUser sysUser = getById(userId);
-        if (Constants.STATUS_DELETE == sysUser.getStatus()) {
+        if (null == sysUser || Constants.STATUS_DELETE == sysUser.getStatus()) {
             throw new Exception("用户账户已删除");
         }