public void setUserGroupId(String userGroupId) {
        this.userGroupId = userGroupId == null ? null : userGroupId.trim();
    }
This method was generated by MyBatis Generator.
This method sets the value of the database column chat_group.user_group_id

@param userGroupId the value for chat_group.user_group_id

@mbg.generated
AnyChatServer/src/main/java/org/anychat/model/base/ChatGroup.java