MyBatis中XML文件的模板
<?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="generator.mapper.UsersMapper">
<resultMap id="BaseResultMap" type="generator.domain.Users">
<id property="id" column="id" jdbcType="INTEGER"/>
<result property="username" column="username" jdbcType="VARCHAR"/>
<result property="password" column="password" jdbcType="VARCHAR"/>
<result property="email" column="email" jdbcType="VARCHAR"/>
</resultMap>
<sql id="Base_Column_List">
id,username,password,
email
</sql>
<select id="selectByPrimaryKey" parameterType="java.lang.Long" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from users
where id = #{id,jdbcType=INTEGER}
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.Long">
delete from users
where id = #{id,jdbcType=INTEGER}
</delete>
<insert id="insert" keyColumn="id" keyProperty="id" parameterType="generator.domain.Users" useGeneratedKeys="true">
insert into users
( id,username,password
,email)
values (#{id,jdbcType=INTEGER},#{username,jdbcType=VARCHAR},#{password,jdbcType=VARCHAR}
,#{email,jdbcType=VARCHAR})
</insert>
<insert id="insertSelective" keyColumn="id" keyProperty="id" parameterType="generator.domain.Users" useGeneratedKeys="true">
insert into users
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="id != null">id,</if>
<if test="username != null">username,</if>
<if test="password != null">password,</if>
<if test="email != null">email,</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="id != null">#{id,jdbcType=INTEGER},</if>
<if test="username != null">#{username,jdbcType=VARCHAR},</if>
<if test="password != null">#{password,jdbcType=VARCHAR},</if>
<if test="email != null">#{email,jdbcType=VARCHAR},</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="generator.domain.Users">
update users
<set>
<if test="username != null">
username = #{username,jdbcType=VARCHAR},
</if>
<if test="password != null">
password = #{password,jdbcType=VARCHAR},
</if>
<if test="email != null">
email = #{email,jdbcType=VARCHAR},
</if>
</set>
where id = #{id,jdbcType=INTEGER}
</update>
<update id="updateByPrimaryKey" parameterType="generator.domain.Users">
update users
set
username = #{username,jdbcType=VARCHAR},
password = #{password,jdbcType=VARCHAR},
email = #{email,jdbcType=VARCHAR}
where id = #{id,jdbcType=INTEGER}
</update>
</mapper>
