Mybatis逆向工程简易配置

1.建立数据库表

create table if not exists `tb_student`(
`id` int unsigned auto_increment,
`name`  varchar(100) not null,
`age` int  not null,
primary key ( `id` )
)engine=InnoDB default charset=utf8;

insert into tb_student(name,age) values("zhangsan",6);
insert into tb_student(name,age) values("lisi",10);
insert into tb_student(name,age) values("wangwu",5);

2.导入jar包：http://download.csdn.net/download/my_momo_csdn/10155515
3.创建配置文件generateConfig.xml，放在src下

<?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>
<property name="suppressAllComments" value="true"/>
</commentGenerator>
<!--数据库链接地址账号密码-->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/db_test" userId="root" password="123456">
</jdbcConnection>

<javaTypeResolver>
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>

<!--生成Model类存放位置-->
<javaModelGenerator targetPackage="top.mzp.generator" targetProject=".\src">
<property name="enableSubPackages" value="false"/>
<property name="trimStrings" value="true"/>
</javaModelGenerator>

<!--生成映射文件存放位置-->
<sqlMapGenerator targetPackage="top.mzp.generator" targetProject=".\src">
<property name="enableSubPackages" value="false"/>
</sqlMapGenerator>

<!--生成DaoMapper类存放位置-->
<javaClientGenerator type="XMLMAPPER" targetPackage="top.mzp.generator" targetProject=".\src">
<property name="enableSubPackages" value="false"/>
</javaClientGenerator>

<!--生成对应表及类名,需要记住的一点是逆向工程无法生成关联关系,只能生成单表操作-->
<table tableName="tb_student"  domainObjectName="Student" ></table>

</context>
</generatorConfiguration>

  
3.创建Java程序，并执行，生成与数据库表相对应的各种java文件

package top.mzp.test;
/**
*@auther mozhongping
*@version 2017-12-12下午1:00:37
*/
import java.io.File;
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 Generate {
public static void generator() throws Exception{
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
//项目根路径不要有中文,我的有中文,所以使用绝对路径
File configFile = new File("./generateConfig.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);

}
public static void main(String[] args) {
try {
generator();
} catch (Exception e) {
e.printStackTrace();
}
}
}

四、执行步骤三的java程序，再刷新工程即可看到生成的java文件，记得要刷新才能看到