解决bug：同一个微信绑定可以绑定多个用户账号

jshERP-boot/src/main/resources/mapper_xml/UserMapperEx.xml

@@ -153,8 +153,7 @@
     </select>
 
     <update id="updateUserWithWeixinOpenId">
-        update jsh_user u set u.weixin_open_id = #{weixinOpenId}
-        where u.login_name = #{loginName} and u.password = #{password}
-        and ifnull(u.status,'0') not in('1','2')
+        update jsh_user u set u.weixin_open_id = null where u.weixin_open_id = #{weixinOpenId};
+        update jsh_user u set u.weixin_open_id = #{weixinOpenId} where u.login_name = #{loginName} and u.password = #{password} and ifnull(u.status,'0') not in('1','2');
     </update>
 </mapper>