pom 配置

pom.xml 中 加入：

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<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>

maven配置

命名：
mybatis-generator:generate -e

注意：
文件名必须是：generatorConfig.xml
否则报错： configfile /Users/geng/ssm/Demo/ssmdemo/src/main/resources/generatorConfig.xml does not exist

mybatis config.xml 文件配置

拷贝驱动包的绝对路径

xml 配置：

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<?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>
    <!-- !!!! Driver Class Path !!!! —>
    <classPathEntry location="/Users/geng/ssm/Demo/mybaitsdemo2/src/main/resources/mysql-connector-java-5.1.7-bin.jar"/>
    <context id="context" targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressAllComments" value="false"/>
            <property name="suppressDate" value="true"/>
        </commentGenerator>
        <!-- !!!! Database Configurations !!!! -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/mybatis_demo2_db?characterEncoding=utf-8"
                        userId="root"
                        password="root"/>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
        <!-- !!!! Model Configurations !!!! -->
        <javaModelGenerator targetPackage="com.gjr.testgenerator.po" targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!-- !!!! Mapper XML Configurations !!!! -->
        <sqlMapGenerator targetPackage="com.gjr.testgenerator.mapper" targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>
        <!-- !!!! Mapper Interface Configurations !!!! -->
        <javaClientGenerator targetPackage="com.gjr.testgenerator.mapper" targetProject="src/main/java" type="XMLMAPPER">
            <property name="enableSubPackages" value="false"/>
        </javaClientGenerator>
        <!-- !!!! Table Configurations !!!! -->
        <table tableName="items" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
               enableUpdateByExample="false"/>
        <table tableName="orders" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
               enableUpdateByExample="false"/>
        <table tableName="orderdetail" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
               enableUpdateByExample="false"/>
        <table tableName="user" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
               enableUpdateByExample="false"/>
    </context>
</generatorConfiguration>

运行逆向生成代码

运行成功


附录
demo 地址：
https://github.com/fenglincanyi/mybaitsdemo2