Intellij IDEA 中使用 MyBatis-generator 自动生成 MyBatis 代码

1、IDEA创建maven工程（略）

2、 在maven项目的pom.xml 添加mybatis-generator-maven-plugin 插件和MySQL数据库驱动依赖

<build>  <plugins>    <plugin>      <groupId>org.mybatis.generator</groupId>      <artifactId>mybatis-generator-maven-plugin</artifactId>      <version>1.3.5</version>      <configuration>        <verbose>true</verbose>        <overwrite>true</overwrite>      </configuration>    </plugin>  </plugins></build><dependency>  <groupId>mysql</groupId>  <artifactId>mysql-connector-java</artifactId>  <version>5.1.34</version></dependency>

3、在maven项目下的src/main/resources 目录下建立名为 generatorConfig.xml的配置文件，作为mybatis-generator-maven-plugin 插件的执行目标，模板如下：

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE generatorConfiguration        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"><generatorConfiguration>    <!-- 配置mysql 驱动jar包路径.用了绝对路径 -->    <classPathEntry location="/Users/wangyongzhi/.m2/repository/mysql/mysql-connector-java/5.1.34/mysql-connector-java-5.1.34.jar" />    <context id="wangyongzhi_mysql_tables" targetRuntime="MyBatis3">        <!-- 防止生成的代码中有很多注释，加入下面的配置控制 -->        <commentGenerator>            <property name="suppressAllComments" value="true" />            <property name="suppressDate" value="true" />        </commentGenerator>        <!-- 数据库连接 -->        <jdbcConnection driverClass="com.mysql.jdbc.Driver"                        connectionURL="jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&amp;characterEncoding=UTF-8"                        userId="root"                        password="123456">        </jdbcConnection>        <javaTypeResolver >            <property name="forceBigDecimals" value="false" />        </javaTypeResolver>        <!-- 数据表对应的model层  -->        <javaModelGenerator targetPackage="me.zhige.domain" targetProject="src">            <property name="enableSubPackages" value="true" />            <property name="trimStrings" value="true" />        </javaModelGenerator>        <!-- sql mapper 映射配置文件 -->        <sqlMapGenerator targetPackage="me.zhige.mapper"  targetProject="src">            <property name="enableSubPackages" value="true" />        </sqlMapGenerator>        <!-- mybatis3中的mapper接口 -->        <javaClientGenerator type="XMLMAPPER" targetPackage="me.zhige.dao"  targetProject="src">            <property name="enableSubPackages" value="true" />        </javaClientGenerator>        <!-- 数据表进行生成操作 schema:相当于库名; tableName:表名; domainObjectName:对应的DO -->        <table schema="test" tableName="users" domainObjectName="User"               enableCountByExample="false" enableUpdateByExample="false"               enableDeleteByExample="false" enableSelectByExample="false"               selectByExampleQueryId="false">        </table>    </context></generatorConfiguration>

4、使用maven运行mybatis-generator-maven-plugin插件：工程名->Plugins->mybatis-generator->mybatis-generator:generate->Run Maven Build

5、自动生成的结构如下：