使用Maven命令用MyBatis Generator生成MyBatis的文件步骤如下：
1.在mop文件内添加plugin
<build>
<finalName>KenShrio</finalName>
<defaultGoal>compile</defaultGoal>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.5</version>
<configuration>
<configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.5</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
2.在resources文件夹下面配置generatorConfig.xml文件。要指定的有，数据库驱动，URL，USERNAME,PASSWORD，实体包，Mapper映射包及Xml包。
<?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">
<!-- 配置Run As Maven build : Goals 参数 : mybatis-generator:generate -Dmybatis.generator.overwrite=true -->
<!-- 配置 tableName,使用 Run As Maven build 生成 dao model 层 -->
<generatorConfiguration>
<!-- 配置文件路径
<properties url="${mybatis.generator.generatorConfig.properties}"/>-->
<!--数据库驱动包路径 -->
<classPathEntry location="/Users/it/Documents/JAVA/lib/mysql-connector-java-5.0.8/mysql-connector-java-5.0.8-bin.jar"/>
<context id="DB2Tables" targetRuntime="MyBatis3">
<!--关闭注释 -->
<commentGenerator>
<property name="suppressAllComments" value="true"/>
</commentGenerator>
<!--数据库连接信息 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/TEST?useUnicode=true&characterEncoding=utf-8" userId="root"
password="db123">
</jdbcConnection>
<!--生成的model 包路径 -->
<javaModelGenerator targetPackage="com.ken.entity" targetProject="src/main/java">
<property name="enableSubPackages" value="ture"/>
<property name="trimStrings" value="true"/>
</javaModelGenerator>
<!--生成xml mapper文件 路径 -->
<sqlMapGenerator targetPackage="com.ken.mapperxml" targetProject="src/main/java">
<property name="enableSubPackages" value="ture"/>
</sqlMapGenerator>
<!-- 生成的Dao接口 的包路径 -->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.ken.mapper" targetProject="src/main/java">
<property name="enableSubPackages" value="ture"/>
</javaClientGenerator>
<!--对应数据库表名，多个表，请复制指定 -->
<table tableName="T_USER"></table>
<table tableName="T_ROLE"></table>
<table tableName="T_USER_ROLE"></table>
<table tableName="T_PERMISSION"></table>
</context>
</generatorConfiguration>
3.用Maven命令mvn mybatis-generator:generate生成
点击Run-->Edit Configurations打开配置窗口，然后在点击左上角的+号找到Maven。指定名称，工作空间目录及命令，这里不用加mvn，然后确定后保存。
最后点击三角运行或者CTRL+R运行即可
