diff --git a/esua-epdc/epdc-module/epdc-api/epdc-api-server/src/main/java/com/elink/esua/epdc/service/impl/AppUserServiceImpl.java b/esua-epdc/epdc-module/epdc-api/epdc-api-server/src/main/java/com/elink/esua/epdc/service/impl/AppUserServiceImpl.java
index 09ccfd015..c1b39f271 100644
--- a/esua-epdc/epdc-module/epdc-api/epdc-api-server/src/main/java/com/elink/esua/epdc/service/impl/AppUserServiceImpl.java
+++ b/esua-epdc/epdc-module/epdc-api/epdc-api-server/src/main/java/com/elink/esua/epdc/service/impl/AppUserServiceImpl.java
@@ -793,20 +793,7 @@ public class AppUserServiceImpl implements AppUserService {
             return new Result().error(verifyResult.getMsg());
         }
         String userState = verifyResult.getData();
-        /**
-         * 代码说明：
-         * 小程序端用户完善信息界面，提交数据前会调用{@link com.elink.esua.epdc.controller.ApiAppUserController#checkWxUnionId(TokenDto)}
-         * 获取用户是否已绑定了微信unionId
-         * 如果用户保存过unionId，前端不会再上送encryptedData，wxCode，iv这三个参数。
-         */
-        if (StringUtils.isNotBlank(infoDto.getWxCode())) {
-            String sessionKey = this.getUserSessionKey(infoDto.getWxCode());
-            WxMaUserInfo wxMaUserInfo = wxMaServiceUtils.normalWxMaService().getUserService().getUserInfo(sessionKey, infoDto.getEncryptedData(), infoDto.getIv());
-            if (StringUtils.isBlank(wxMaUserInfo.getUnionId())) {
-                return new Result().error("解析微信开放平台ID失败");
-            }
-            userDto.setWxUnionId(wxMaUserInfo.getUnionId());
-        }
+        userDto.setWxUnionId(getWxUnionId(infoDto.getWxCode(), infoDto.getIv(), infoDto.getEncryptedData()));
 
         UserGridRelationDTO userGrid = this.packageUserGridRelationInfo(infoDto.getGridId());
         EpdcCompleteAppUserDTO completeAppUserDto = ConvertUtils.sourceToTarget(userDto, EpdcCompleteAppUserDTO.class);
@@ -851,6 +838,32 @@ public class AppUserServiceImpl implements AppUserService {
         return new Result().ok(authorizationDto);
     }
 
+    /**
+     * 解析微信用户unionid
+     * <p>代码说明：
+     * 小程序端用户完善信息界面，提交数据前会调用{@link com.elink.esua.epdc.controller.ApiAppUserController#checkWxUnionId(TokenDto)}
+     * 获取用户是否已绑定了微信unionId
+     * 如果用户保存过unionId，前端不会再上送encryptedData，wxCode，iv这三个参数。</p>
+     *
+     * @param wxCode
+     * @param iv
+     * @param encryptedData
+     * @return java.lang.String
+     * @author work@yujt.net.cn
+     * @date 2020/2/28 14:51
+     */
+    private String getWxUnionId(String wxCode, String iv, String encryptedData) {
+        if (StringUtils.isBlank(wxCode) || StringUtils.isBlank(iv) || StringUtils.isBlank(encryptedData)) {
+            return null;
+        }
+        String sessionKey = this.getUserSessionKey(wxCode);
+        WxMaUserInfo wxMaUserInfo = wxMaServiceUtils.normalWxMaService().getUserService().getUserInfo(sessionKey, encryptedData, iv);
+        if (null == wxMaUserInfo || StringUtils.isBlank(wxMaUserInfo.getUnionId())) {
+            throw new RenException("解析微信数据失败，请刷新后重试");
+        }
+        return wxMaUserInfo.getUnionId();
+    }
+
     @Override
     public Result<EpdcCompleteUserInfoDTO> prepareCompleteUserInfo(TokenDto tokenDto) {
 
@@ -1013,7 +1026,10 @@ public class AppUserServiceImpl implements AppUserService {
             }
         } catch (WxErrorException e) {
             e.printStackTrace();
-            throw new RenException("微信编码异常，请刷新页面后重试");
+            if (e.getError().getErrorCode() == 40163) {
+                throw new RenException("禁止重复提交，请刷新页面后重试");
+            }
+            throw new RenException(e.getError().getErrorMsg());
         }
         return null;
     }