数字自能判断是否为null或者等于几
id是long或者integer类型
<if test=" id ! = null ">
</if>
<if test=" id ! = null and id==1 ">
</if>
name是string类型
<if test=" name ! = null and name!=' ' ">
</if>
数字自能判断是否为null或者等于几
id是long或者integer类型
<if test=" id ! = null ">
</if>
<if test=" id ! = null and id==1 ">
</if>
name是string类型
<if test=" name ! = null and name!=' ' ">
</if>