新建Maven工程

<build><plugins><plugin><!--mybatis代码自动生成插件--><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-maven-plugin</artifactId><version>1.3.6</version><configuration><!-- 配置文件位置 --><configurationFile>src/main/resources/GeneratorMapper.xml</configurationFile><verbose>true</verbose><overwrite>true</overwrite></configuration><dependencies><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.33</version></dependency></dependencies></plugin></plugins>
</build>

GeneratorMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfigurationPUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN""http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"><generatorConfiguration><!--指定mysql数据库驱动--><!--<classPathEntry location="E://repository-p2p//mysql//mysql-connector-java//5.1.43//mysql-connector-java-5.1.43.jar"/>--><!--导入属性配置--><properties resource="generator.properties"></properties><!--指定特定数据库的jdbc驱动jar包的位置-->
<!--    <classPathEntry location="${jdbc.driverLocation}"/>--><context id="default" targetRuntime="MyBatis3"><!-- optional，旨在创建class时，对注释进行控制，false生成注释,true无注释 --><commentGenerator><property name="suppressDate" value="false"/><!--注释都是英文,不让它生成--><property name="suppressAllComments" value="true"/></commentGenerator><!--jdbc的数据库连接 --><jdbcConnectiondriverClass="${jdbc.driverClass}"connectionURL="${jdbc.connectionURL}"userId="${jdbc.userId}"password="${jdbc.password}"></jdbcConnection><!-- 非必需，类型处理器，在数据库类型和java类型之间的转换控制--><javaTypeResolver><property name="forceBigDecimals" value="false"/></javaTypeResolver><!--实体类配置--><javaModelGenerator targetPackage="com.example.api.pojo"targetProject="J:\yinglibao\mybatismapper\src\main\java"><property name="enableSubPackages" value="false" /><property name="trimStrings" value="false" /></javaModelGenerator><!--Mapper映射文件.XML生成所在的目录 为每一个数据库的表生成对应的SqlMap文件 --><sqlMapGenerator targetPackage="mappers"targetProject="J:\yinglibao\mybatismapper\src\main\resources"><property name="enableSubPackages" value="false"/></sqlMapGenerator><!-- 生成mapper接口type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口--><javaClientGenerator targetPackage="com.example.api.mapper"targetProject="J:\yinglibao\mybatismapper\src\main\java" type="XMLMAPPER"><property name="enableSubPackages" value="true"/></javaClientGenerator><table tableName="u_user" domainObjectName="User"enableCountByExample="false" enableUpdateByExample="false"enableDeleteByExample="false" enableSelectByExample="false"selectByExampleQueryId="false"></table><table tableName="b_bid_info" domainObjectName="BidInfo"enableCountByExample="false" enableUpdateByExample="false"enableDeleteByExample="false" enableSelectByExample="false"selectByExampleQueryId="false"></table><table tableName="b_income_record" domainObjectName="IncomeRecord"enableCountByExample="false" enableUpdateByExample="false"enableDeleteByExample="false" enableSelectByExample="false"selectByExampleQueryId="false"></table><table tableName="b_product_info" domainObjectName="ProductInfo"enableCountByExample="false" enableUpdateByExample="false"enableDeleteByExample="false" enableSelectByExample="false"selectByExampleQueryId="false"></table><table tableName="b_recharge_record" domainObjectName="RechargeRecord"enableCountByExample="false" enableUpdateByExample="false"enableDeleteByExample="false" enableSelectByExample="false"selectByExampleQueryId="false"></table><table tableName="u_finance_account" domainObjectName="User"enableCountByExample="false" enableUpdateByExample="false"enableDeleteByExample="false" enableSelectByExample="false"selectByExampleQueryId="false"></table></context>
</generatorConfiguration>

generator.properties

#jdbc.driverLocation=D:/testDir/Maven/repository_g/mysql/mysql-connector-java/5.1.43/mysql-connector-java-5.1.43.jar
jdbc.driverClass=com.mysql.cj.jdbc.Driver
jdbc.connectionURL=jdbc:mysql://localhost:3306/xxx
jdbc.userId=root
jdbc.password=123456

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