##1.引入依赖
<dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.6</version> </dependency>##2.配置文件 mybatis-generatorconfig.xml
根据官方文档 链接: mybatis-generator.
<?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="DB2Tables" targetRuntime="MyBatis3"> <!-- 自定义的注释规则，继承 DefaultCommentGenerator 重写 一些方法 --> <commentGenerator> <property name="suppressAllComments" value="true"/> </commentGenerator> <!--配置数据库连接--> <context id="DB2Tables" targetRuntime="MyBatis3"> <jdbcConnection driverClass="COM.ibm.db2.jdbc.app.DB2Driver" connectionURL="jdbc:db2:TEST" userId="db2admin" password="db2admin"> </jdbcConnection> <javaTypeResolver > <property name="forceBigDecimals" value="false" /> </javaTypeResolver> <!--指定javabean生成的位置--> <javaModelGenerator targetPackage="test.model" targetProject="\MBGTestProject\src"> <property name="enableSubPackages" value="true" /> <property name="trimStrings" value="true" /> </javaModelGenerator> <!--指定sql映射文件生成位置--> <sqlMapGenerator targetPackage="test.xml" targetProject="\MBGTestProject\src"> <property name="enableSubPackages" value="true" /> </sqlMapGenerator> <!--指定dao接口生成的位置 mapper接口--> <javaClientGenerator type="XMLMAPPER" targetPackage="test.dao" targetProject="\MBGTestProject\src"> <property name="enableSubPackages" value="true" /> </javaClientGenerator> <!--指定每个表的生成策略--> <table schema="DB2ADMIN" tableName="ALLTYPES" domainObjectName="Customer" > <property name="useActualColumnNames" value="true"/> <generatedKey column="ID" sqlStatement="DB2" identity="true" /> <columnOverride column="DATE_FIELD" property="startDate" /> <ignoreColumn column="FRED" /> <columnOverride column="LONG_VARCHAR_FIELD" jdbcType="VARCHAR" /> </table> </context> </generatorConfiguration>##3.编写测试类运行生成
public class Generator { public static void main(String[] args) throws Exception { List<String> warnings = new ArrayList<String>(); boolean overwrite = true; File configFile = new File("mybatis-generatorconfig.xml"); ConfigurationParser cp = new ConfigurationParser(warnings); Configuration config = cp.parseConfiguration(configFile); DefaultShellCallback callback = new DefaultShellCallback(overwrite); MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings); myBatisGenerator.generate(null); } }