<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.nantian.mybatis.dynamicsql.StudentMapper"> <resultMap type="Student" id="student"> <id property="id" column="s_id" javaType="int" jdbcType="INTEGER"/> <result property="name" column="s_name" javaType="string" jdbcType="VARCHAR"/> </resultMap> <select id="dynamicQuery" parameterType="Student" resultMap="student"> select s_id,s_name from student where s_id = #{id} <if test="name != null"> and s_name like '%${name}%' </if> </select> <select id=""> <where> <choose> <when test=""></when> <otherwise></otherwise> </choose> </where> </select> </mapper>
