<select id="selectSysRpuserListByToday" parameterType="SysRpuser" resultMap="SysRpuserResult"> <include refid="selectSysRpuserVo"/> <where> <if test="tid != null and tid != ''"> and tid = #{tid}</if> <if test="tusername != null and tusername != ''"> and tusername like concat('%', #{tusername}, '%')</if> <if test="tnickname != null and tnickname != ''"> and tnickname like concat('%', #{tnickname}, '%')</if> <if test="uamount != null and uamount != ''"> and uamount = #{uamount}</if> <if test="ustatus != null and ustatus != ''"> and ustatus = #{ustatus}</if> <if test="forgroup != null and forgroup != ''"> and forgroup = #{forgroup}</if> <if test="createtime != null "> and createtime = #{createtime}</if> <if test="agentTid != null and agentTid != ''"> and agentTid = #{agentTid}</if> </where> </select>优化以上代码，要求能查询当日数据

可以在 `<where>` 标签中添加对 `createtime` 字段的判断，使查询仅返回当日的数据。具体代码如下：

<select id="selectSysRpuserListByToday" parameterType="SysRpuser" resultMap="SysRpuserResult">
    <include refid="selectSysRpuserVo"/>
    <where>
        <if test="tid != null and tid != ''"> and tid = #{tid}</if>
        <if test="tusername != null and tusername != ''"> and tusername like concat('%', #{tusername}, '%')</if>
        <if test="tnickname != null and tnickname != ''"> and tnickname like concat('%', #{tnickname}, '%')</if>
        <if test="uamount != null and uamount != ''"> and uamount = #{uamount}</if>
        <if test="ustatus != null and ustatus != ''"> and ustatus = #{ustatus}</if>
        <if test="forgroup != null and forgroup != ''"> and forgroup = #{forgroup}</if>
        <!-- 添加当日数据判断 -->
        <if test="createtime != null">
            and createtime &gt;= #{createtime} 
            and createtime &lt;= DATE_ADD(#{createtime}, INTERVAL 1 DAY)
        </if>
        <if test="agentTid != null and agentTid != ''"> and agentTid = #{agentTid}</if>
    </where>
</select>

这个代码中，`DATE_ADD(#{createtime}, INTERVAL 1 DAY)` 表示将 `#{createtime}` 的日期加 1 天，相当于查询当日的数据。

在Java代码中，可以这样调用：

SysRpuser obj = new SysRpuser();
obj.setCreatetime(new Date());

List<SysRpuserResult> result = sqlSession.selectList("selectSysRpuserListByToday", obj);

这样，就可以查询出当日的数据了。