id , message_id, receive_user_id, receive_user_name, receive_real_name, readed, create_time, read_time select from t_message_user where message_id in #{id} insert into t_message_user (message_id, receive_user_id, receive_user_name, receive_real_name, readed, create_time) values (#{item.messageId,jdbcType=INTEGER}, #{item.receiveUserId,jdbcType=INTEGER}, #{item.receiveUserName,jdbcType=VARCHAR}, #{item.receiveRealName,jdbcType=VARCHAR}, #{item.readed,jdbcType=BIT}, #{item.createTime,jdbcType=TIMESTAMP}) select from t_message_user where receive_user_id = #{receiveUserId} select count(*) from t_message_user where readed = 'f' and receive_user_id = #{userId}