一个账号只能绑定一个微信号

server/src/main/java/com/pica/cloud/account/account/server/enums/AccountExceptionEnum.java

@@ -26,7 +26,8 @@ public enum AccountExceptionEnum {
     PICA_SYSCODE_RETRY("216518", "请X秒后重试"),
     PICA_NOT_EXIST("216519", "该用户不存在"),
     PICA_REGISTER_FAIL("216520", "注册失败"),
-    PICA_WECHAT_CODE_ERROR("216521", "微信登录授权code不正确");
+    PICA_WECHAT_CODE_ERROR("216521", "微信登录授权code不正确"),
+    PICA_WECHAT_BIND_ERROR("216522", "该手机已绑定另一微信号");
 
 
     private String code;

server/src/main/java/com/pica/cloud/account/account/server/mapper/AccountUnionMapper.java

@@ -34,5 +34,7 @@ public interface AccountUnionMapper {
 
     int updateByPrimaryKey(AccountUnionEntity record);
 
+    AccountUnionEntity selectByAcctId(int acctId);
+
 
 }
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server/src/main/java/com/pica/cloud/account/account/server/service/impl/LoginServiceImpl.java

@@ -255,6 +255,11 @@ public class LoginServiceImpl implements LoginService {
                 }
             }
         } else {
+            //账号存在的情况下，判断是否已经绑定过微信
+            AccountUnionEntity exist = accountUnionMapper.selectByAcctId(accountInfoEntity.getId());
+            if (exist != null && !exist.getUnionId().equals(request.getUnionId())) {
+                throw new PicaException(AccountExceptionEnum.PICA_WECHAT_BIND_ERROR.getCode(), AccountExceptionEnum.PICA_WECHAT_BIND_ERROR.getMessage());
+            }
             result = processLogin(request, accountInfoEntity.getId(), AccountTypeEnum.LOGIN_WE_CHAT.getCode());
         }
         result.setMobile(request.getMobile());

server/src/main/resources/mybatis/AccountUnionEntityMapper.xml

@@ -159,4 +159,12 @@
       modified_time = #{modifiedTime,jdbcType=TIMESTAMP}
     where id = #{id,jdbcType=INTEGER}
   </update>
+
+  <select id="selectByAcctId" resultMap="BaseResultMap" parameterType="java.lang.Integer">
+    select
+    <include refid="Base_Column_List"/>
+    from account_union
+    where acct_id = #{acctId} and delete_flag = 1
+    limit 1
+  </select>
 </mapper>
\ No newline at end of file