idea自动生成mybatis文件

1 在pom.xml中添加org.mybatis.generator插件

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
            plugin>
            <plugin>
                <groupId>org.mybatis.generatorgroupId>
                <artifactId>mybatis-generator-maven-pluginartifactId>
                <version>1.3.2version>

            plugin>
        plugins>
    build>

2 添加generator运行选项

在Command line中添加如下代码

mybatis-generator:generate -e

3 在resources下建立generatorConfig.xml 内容如下

<generatorConfiguration>
    
    <classPathEntry  location="D:\woooooork\jar\mysqlconnnect\mysql-connector-java-5.1.44.jar"/>
    <context id="DB2Tables"  targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            
            <property name="suppressAllComments" value="true"/>
        commentGenerator>
        
        <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/test?useUnicode=true" userId="root" password="123456">
        jdbcConnection>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        javaTypeResolver>
        
        <javaModelGenerator targetPackage="main.java.com.model" targetProject="src">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        javaModelGenerator>
        
        <sqlMapGenerator targetPackage="main.resources.mapper" targetProject="src">
            <property name="enableSubPackages" value="true"/>
        sqlMapGenerator>
        
        <javaClientGenerator type="XMLMAPPER" targetPackage="main.java.com.mapper" targetProject="src">
       <property name="enableSubPackages" value="true"/>
        javaClientGenerator>
        
        <table tableName="t_user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">table>
    context>
generatorConfiguration>

细节根据注释修改，绑定到数据的表后，运行generator后就可以啦！

4 自动生成的xml文件结构如下

<mapper namespace="com.mapper.UserMapper" >
  <resultMap id="BaseResultMap" type="com.model.User" >
    <id column="user_id" property="userId" jdbcType="INTEGER" />
    <result column="user_name" property="userName" jdbcType="VARCHAR" />
    <result column="password" property="password" jdbcType="VARCHAR" />
    <result column="phone" property="phone" jdbcType="VARCHAR" />
  resultMap>
        
  <sql id="Base_Column_List" >
    user_id, user_name, password, phone
  sql>
  
  <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
    select 
    <include refid="Base_Column_List" />
    from t_user
    where user_id = #{userId,jdbcType=INTEGER}
  select>
  
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    delete from t_user
    where user_id = #{userId,jdbcType=INTEGER}
  delete>
  
  <insert id="insert" parameterType="com.model.User" >
    insert into t_user (user_id, user_name, password, 
      phone)
    values (#{userId,jdbcType=INTEGER}, #{userName,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR}, 
      #{phone,jdbcType=VARCHAR})
  insert>
  <insert id="insertSelective" parameterType="com.model.User" >
    insert into t_user
    <trim prefix="(" suffix=")" suffixOverrides="," >
      <if test="userId != null" >
        user_id,
      if>
      <if test="userName != null" >
        user_name,
      if>
      <if test="password != null" >
        password,
      if>
      <if test="phone != null" >
        phone,
      if>
    trim>
    <trim prefix="values (" suffix=")" suffixOverrides="," >
      <if test="userId != null" >
        #{userId,jdbcType=INTEGER},
      if>
      <if test="userName != null" >
        #{userName,jdbcType=VARCHAR},
      if>
      <if test="password != null" >
        #{password,jdbcType=VARCHAR},
      if>
      <if test="phone != null" >
        #{phone,jdbcType=VARCHAR},
      if>
    trim>
  insert>
  <update id="updateByPrimaryKeySelective" parameterType="com.model.User" >
    update t_user
    <set >
      <if test="userName != null" >
        user_name = #{userName,jdbcType=VARCHAR},
      if>
      <if test="password != null" >
        password = #{password,jdbcType=VARCHAR},
      if>
      <if test="phone != null" >
        phone = #{phone,jdbcType=VARCHAR},
      if>
    set>
    where user_id = #{userId,jdbcType=INTEGER}
  update>
  <update id="updateByPrimaryKey" parameterType="com.model.User" >
    update t_user
    set user_name = #{userName,jdbcType=VARCHAR},
      password = #{password,jdbcType=VARCHAR},
      phone = #{phone,jdbcType=VARCHAR}
    where user_id = #{userId,jdbcType=INTEGER}
  update>

  
  <select id="getUser" parameterType="String" resultType="com.model.User" >
    SELECT * FROM t_user WHERE username = #{userName,jdbcType=VARCHAR}
  select>

  <select id="getUserByPhone" parameterType="String" resultMap="BaseResultMap">
      SELECT
      <include refid="Base_Column_List"/>
    FROM t_user where phone= #{phone,jdbcType=VARCHAR}
  select>
mapper>