public void setChatGroupId(String chatGroupId) {
        this.chatGroupId = chatGroupId == null ? null : chatGroupId.trim();
    }
This method was generated by MyBatis Generator.
This method sets the value of the database column chat_group_user.chat_group_id

@param chatGroupId the value for chat_group_user.chat_group_id

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