1.优化

@@ -40,17 +40,14 @@ public class UserWeixin extends AsyncMqModule implements Serializable {
 
     /** 微信unionid，针对开发者 */
     @Column(name = "unionid")
-    @NotNull(message = "unionid can't be null",groups = {CreateGroup.class})
     private String unionid;
 
     /** 微信appid */
     @Column(name = "appid")
-    @NotNull(message = "appid can't be null",groups = {CreateGroup.class})
     private String appid;
 
     /** 微信openid，针对微信app */
     @Column(name = "openid")
-    @NotNull(message = "openid can't be null",groups = {CreateGroup.class})
     private String openid;
 
     /** 关注状态 0 -未关注  1 - 已关注 */