增加空判断

server/src/main/java/com/pica/cloud/account/account/server/service/impl/WechatServiceImpl.java

@@ -34,7 +34,11 @@ public class WechatServiceImpl implements WechatService {
         if(StringUtil.isEmpty(unionId)){
             return new AccountWeChatInfoEntity();
         }else {
-            return weChatInfoMapper.selectByUnionId(unionId);
+            AccountWeChatInfoEntity entity = weChatInfoMapper.selectByUnionId(unionId);
+            if(entity == null) {
+                entity = new AccountWeChatInfoEntity();
+            }
+            return entity;
         }
     }