上节我们搞定了框架，这里我们搞mybits自动生成代码的步骤
1.写一个静态方法

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.internal.DefaultShellCallback;

public class MbgTest {

    /**
     * @param args
     * @throws Exception
     * @throws IOException
     */
    public static void main(String[] args) throws IOException, Exception {
        List<String> warnings = new ArrayList<String>();
        boolean overwrite = true;
        File configFile = new File("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);
    }
}

2.根据静态方法在项目根目录制作添加一个文件——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>

   <context id="DB2Tables" targetRuntime="MyBatis3">
       <commentGenerator>
           <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
           <property name="suppressAllComments" value="true" />
       </commentGenerator>
       <!-- 配置数据库链接 -->
       <jdbcConnection driverClass="com.mysql.jdbc.Driver"
           connectionURL="jdbc:mysql://localhost:3306/mybolg" userId="root"
           password="root">
       </jdbcConnection>
       <!-- -->
       <javaTypeResolver>
           <property name="forceBigDecimals" value="false" />
       </javaTypeResolver>
       <!-- 指定javabean生成位置 -->
       <javaModelGenerator targetPackage="seience.havelook.pojo"
           targetProject=".\src">
           <property name="enableSubPackages" value="true" />
           <property name="trimStrings" value="true" />
       </javaModelGenerator>
       <!-- 指定sql映射文件生成文件位置 -->
       <sqlMapGenerator targetPackage="seience.havelook.dao" targetProject=".\src">
           <property name="enableSubPackages" value="true" />
       </sqlMapGenerator>
       <!-- 指定dao接口生成位置 ，mapper接口 -->
       <javaClientGenerator type="XMLMAPPER"
           targetPackage="seience.havelook.dao" targetProject=".\src">
           <property name="enableSubPackages" value="true" />
       </javaClientGenerator>
       <!-- 指定每个标的生成策略 -->
       <table tableName="qinblog_article" domainObjectName="Qinblog_article"></table>
   </context>
</generatorConfiguration>

在这里只要运行MbgTest.java就会自动生成代码，避免了我们很多重复的劳动