MyBatis逆向工程

第一步：pom.xml导入jar包

<groupId>org.mybatis.generator</groupId>

<artifactId>mybatis-generator-core</artifactId>

</dependency>

第二步：在src目录下创建mbg.xml

<?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>
   <!-- <classPathEntry location="/Program Files/IBM/SQLLIB/java/db2java.zip" />-->

    <!--MyBatis3Simple：简单的增删改查-->
    <!--MyBatis3：豪华版增删改查-->
    <context id="DB2Tables" targetRuntime="MyBatis3Simple">
        <!--如何连接数据库驱动-->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/mybatis_learn"
                        userId="root"
                        password="123456">
        </jdbcConnection>

        <!--Java类型解析器-->
        <javaTypeResolver >
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>

        <!--定义Java模型，生成JavaBean策略-->
        <!--targetPackage:生成位置-->
        <!--targetProject:目标工程-->
        <javaModelGenerator targetPackage="com.figsprite.bean" targetProject="src/main/java">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>


        <!--sql映射生成策略-->
        <sqlMapGenerator targetPackage="com.figsprite.dao"  targetProject="src/main/resources">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>

        <!--指定客户端代码生成器，生成mapper接口所在位置-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.figsprite.dao"  targetProject="src/main/java">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>

        <!--指定要逆向分析哪些表-->
        <!--domainObjectName 指定JavaBean的类名-->
        <table tableName="tb_department" domainObjectName="Department"></table>
        <table tableName="tb_employee" domainObjectName="Employee"></table>

    </context>
</generatorConfiguration>

View Code

第三步：在测试中编写生成代码

    @Test
    public void testMbg() throws IOException, XMLParserException, SQLException, InterruptedException, InvalidConfigurationException {
        List<String> warnings = new ArrayList<String>();
        boolean overwrite = true;
        File configFile = new File("src/mbg.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);
    }

　　执行测试方法，生成相应代码

豪华版的使用案例：