syrc/target/classes/com/sooka/mybatis/mapper/TCmsPostMapper.xml

<?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.sooka.mybatis.mapper.TCmsPostMapper">
    <resultMap id="BaseResultMap" type="com.sooka.mybatis.model.TCmsPost">
        <id column="post_id" jdbcType="BIGINT" property="id" />
        <result column="post_name" jdbcType="VARCHAR" property="postName" />
        <result column="enterprise_id" jdbcType="BIGINT" property="enterpriseId" />
    	<association property="enterprise" javaType="com.sooka.mybatis.model.TCmsEnterprise" column="enterprise_id" select="com.sooka.mybatis.mapper.TCmsEnterpriseMapper.selectEnterpriseById"></association>
    </resultMap>
     <select id="selectPostByEnterpriseId" parameterType="com.sooka.mybatis.model.TCmsPost" resultMap="BaseResultMap">
        SELECT
        *
        FROM
        t_cms_post
        <trim prefix="WHERE ("  suffix=")" prefixOverrides="AND|OR">
            <if test="enterpriseId!=null">
                enterprise_id = #{enterpriseId,jdbcType=BIGINT}
            </if>
        </trim>
    </select>





</mapper>