1. generatorConfig.xml 配置生成代码 在resource目录新建generator文件夹  ~~~ <?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> <context id="test" targetRuntime="MyBatis3"> <plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin"></plugin> <plugin type="org.mybatis.generator.plugins.SerializablePlugin"></plugin> <plugin type="org.mybatis.generator.plugins.ToStringPlugin"></plugin> <commentGenerator> <!-- 这个元素用来去除指定生成的注释中是否包含生成的日期 false:表示保护 --> <!-- 如果生成日期，会造成即使修改一个字段，整个实体类所有属性都会发生变化，不利于版本控制，所以设置为true --> <property name="suppressDate" value="true"/> <!-- 是否去除自动生成的注释 true：是 ： false:否 --> <property name="suppressAllComments" value="false"/> </commentGenerator> <!--数据库链接URL，用户名、密码 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://192.168.56.130/e3mall" userId="root" password="tuna"> </jdbcConnection> <javaTypeResolver> <!-- This property is used to specify whether MyBatis Generator should force the use of java.math.BigDecimal for DECIMAL and NUMERIC fields, --> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <!-- 生成模型的包名和位置 --> <javaModelGenerator targetPackage="cn.e3mall.pojo" targetProject=".\src\main\java"> <property name="enableSubPackages" value="true"/> <property name="trimStrings" value="true"/> </javaModelGenerator> <!-- 生成xml映射文件的包名和位置 --> <sqlMapGenerator targetPackage="cn.e3mall.mapper" targetProject=".\src\main\java"> <property name="enableSubPackages" value="true"/> </sqlMapGenerator> <!-- 生成mapper的包名和位置 --> <javaClientGenerator type="XMLMAPPER" targetPackage="cn.e3mall.mapper" implementationPackage="com.test.dao.impl" targetProject=".\src\main\java"> <property name="enableSubPackages" value="true"/> </javaClientGenerator> <!-- 要生成哪些表 --> <!-- enableCountByExample="false" 不要Example --> <table tableName="tb_content" domainObjectName="TbContent" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="tb_content_category" domainObjectName="TbContentCategory" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="tb_item" domainObjectName="TbItem" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="tb_item_cat" domainObjectName="TbItemCat" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="tb_item_desc" domainObjectName="TbItemDesc" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="tb_item_param_item" domainObjectName="TbItemParamItem" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="tb_order" domainObjectName="TbOrder" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="tb_order_item" domainObjectName="TbOrderItem" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="tb_order_shipping" domainObjectName="TbOrderShipping" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="tb_user" domainObjectName="TbUser" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> </context> </generatorConfiguration> ~~~ 2. maven配置 ~~~ <build> <plugins> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.3</version> <configuration> # 指定配置文件 <configurationFile>src/main/resources/generator/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>1.3.3</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.35</version> <scope>runtime</scope> </dependency> </dependencies> </plugin> </plugins> </build> ~~~ 3. 执行生成代码命令 mybatis-generator:generate