编写Mybatis的自动生成器mybatis-generator

参照mybatis的官方文档编写一个XML文件（mybatis-generator.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>
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!-- 配置数据库连接信息 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/ghxt"
userId="root"
password="root">
</jdbcConnection>

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

<!-- 指定javaBean生成的指定位置 -->
<javaModelGenerator
targetPackage="com.ghxt.qt.domain"
targetProject="E:\job\generatorCode">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>

<!-- 指定sql映射文件生成的位置 -->
<sqlMapGenerator
targetPackage="mapper"
targetProject="E:\job\generatorCode">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>

<!-- 指定dao接口生成的位置 mapper接口 -->
<javaClientGenerator type="XMLMAPPER"
targetPackage="com.ghxt.qt.mapper"
targetProject="E:\job\generatorCode">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>

<!-- table指定每个表的生成策略 -->
<table tableName="tbl_emp" domainObjectName="Employee"
enableCountByExample="false" enableDeleteByExample="false"
enableSelectByExample="false" enableUpdateByExample="false"
selectByExampleQueryId="false">
</table>
<table tableName="tbl_dept" domainObjectName="Department"
enableCountByExample="false" enableDeleteByExample="false"
enableSelectByExample="false" enableUpdateByExample="false"
selectByExampleQueryId="false" >
</table>
</context>
</generatorConfiguration>编写生成器MybatisGeneratorTest.java
package com.ghxt.test;

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 MybatisGeneratorTest {
public static void main(String[] args) throws Exception {
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
File configFile = new File("mybatis-generator.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);
}
}
注意：要把XML文件放在项目下面