mybatis反向生成代码

使用插件或者java类+generatorConfig文件

generatorConfig文件配置：

 

<?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>
<!-- 数据库驱动:选择你的本地硬盘上面的数据库驱动包-->
<classPathEntry location="数据库驱动包绝对路径"/>
<context id="testTables" targetRuntime="MyBatis3">
<commentGenerator>
<!-- 是否去除自动生成的注释 true：是 ： false:否 -->
<property name="suppressAllComments" value="true" />
</commentGenerator>
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="mysql的链接地址"
userId="用户名" password="密码">
</jdbcConnection>

 

<!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL
和 NUMERIC 类型解析为java.math.BigDecimal -->
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>

 

<!-- targetProject:生成PO类的位置 -->
<javaModelGenerator targetPackage="model路径"
targetProject="src/main/resources">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="false" />
<!-- 从数据库返回的值被清理前后的空格 -->
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- targetProject:mapper映射文件生成的位置 -->
<sqlMapGenerator targetPackage="dao的路径"
targetProject="src/main/resources">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="false" />
</sqlMapGenerator>

 

<!-- targetPackage：mapper接口生成的位置 -->
<javaClientGenerator type="XMLMAPPER"
targetPackage="daoxml的路径" targetProject="src/main/resources">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="false" />
</javaClientGenerator>

 

<table tableName="表名" domainObjectName="域对象名"
enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false"
enableSelectByExample="false" selectByExampleQueryId="false">
<property name="useActualColumnNames" value="true"/>
</table>
</context>
</generatorConfiguration>

 

使用插件或者java类

java类直接运行生成

package com.travelsky.adap.re.scheduler.kpi.utils;

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;

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

public class GeneratorDisplay {

public void generator() throws Exception{

List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
//指定 逆向工程配置文件
File configFile = new File("generatorConfig.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) throws Exception {
try {
GeneratorDisplay generatorSqlmap = new GeneratorDisplay();
generatorSqlmap.generator();
} catch (Exception e) {
e.printStackTrace();
}

}
}

 

eclipse插件推荐mybatis generaner 

idea推荐pom增加配置

 <plugin>
         <groupId>org.mybatis.generator</groupId>
         <artifactId>mybatis-generator-maven-plugin</artifactId>
         <version>1.3.2</version>
         <configuration>
            <configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
            <overwrite>true</overwrite>
            <verbose>true</verbose>
         </configuration>
      </plugin>