MyBatis中动态SQL语句完成多条件查询
<select id="queryEmp" resultType="cn.test.entity.Emp">
select * from emp where 1=1
<if test="deptNo!=null">
and deptno=#{deptNO}
</if>
<if test="deptName!=null">
and deptno=#{deptName}
</if>
</select>