(D) mybatis reverse engineering

That generation reverse engineering class, mapper, the interface through which database tables, do not need to write those, very convenient. With symfony automatically generated inside is the same; people say the video is not much use, but I think it is very convenient

Specific steps, first introduced into MyBatis-generator-core.jar,

After copying files look generator.xml: there are notes, it is easy to understand

<? xml Version = " 1.0 " encoding = " UTF-8 " ?> 
<! DOCTYPE generatorConfiguration 
        the PUBLIC " - // mybatis.org//DTD the Configuration MyBatis Generator 1.0 // EN " 
        " http://mybatis.org/dtd /mybatis-generator-config_1_0.dtd " > 
<generatorConfiguration> 
    <! - database driver -> 
    <! - 
        If the IDE (eclipse or idea) project was introduced into the jar package, you do not need the absolute configuration of the jar package the path
          <classpathentry LOCATION = " E: /project/mybatis/lib/mysql-connector-java-5.0.8-bin.jar " /> 
    -> 
    <context id="DB2Tables"    targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <property name="suppressAllComments" value="false"/>
        </commentGenerator>
        <!--数据库链接地址账号密码-->
        <jdbcConnection userId="root" driverClass="com.mysql.cj.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/mybatis_generator?useUnicode=true&amp;characterEncoding=utf-8&amp;serverTimezone=GMT" password="wen52010">
        </jdbcConnection>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
        <!--生成Model类存放位置-->
        <javaModelGenerator targetPackage="Entity" targetProject="src">
<!--            <property name="enableSubPackages" value="true"/>-->
<!--            <property name="trimStrings" value="true"/>-->
        </javaModelGenerator>
        <!--生成映射文件存放位置-->
        <sqlMapGenerator targetPackage="Mapper" targetProject="src">
<!--            <property name="enableSubPackages" value="true"/>-->
        </sqlMapGenerator>
        <!- generating class storage location Dao -> "

        <javaClientGenerator type =XMLMAPPER" targetPackage="Mapper" targetProject="src">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
        <table tableName="Student"></table>
        <table tableName="Adress"></table>
        <!--生成对应表及类名-->
<!--        <table tableName="category_" domainObjectName="Category" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="true" selectByExampleQueryId="false">-->
<!--            <property name="my.isgen.usekeys" value="true"/>-->
<!--            <generatedKey column="id" sqlStatement="JDBC"/>-->
<!--        </table>-->
        <!--         <table tableName="product_" domainObjectName="Product" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> -->
    </context>
</generatorConfiguration>

The path names, and other changes indicate correct,

Among the main function, copy the following code to run on Ok,

        File file = new File("src/generator.xml");

        List<String> warnings = new ArrayList<String>();
        ConfigurationParser cp = new ConfigurationParser(warnings);
        Configuration config = cp.parseConfiguration(file);
        DefaultShellCallback callback = new DefaultShellCallback(true);
        MyBatisGenerator generator = new MyBatisGenerator(config,callback,warnings);
        generator.generate(null);