最近项目中使用了Mybatis, 顺便整理一下mybatis代码生成器使用经验。网上的好多资料,不能拿来就用,需要费一番功夫,感觉甚是不方便,所以结合自己的经验总结了一个简单入门版本
1,创建一个简单Maven工程,引入如下POM文件:
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.41</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core -->
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.5</version>
</dependency>
2,在src/mian/resources添加generatorConfig.xml配置文件:
<?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="MysqlContext" targetRuntime="MyBatis3Simple" defaultModelType="flat">
<property name="beginningDelimiter" value="`"/>
<property name="endingDelimiter" value="`"/>
<commentGenerator>
<property name="suppressDate" value="true"/>
</commentGenerator>
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://mysql-server:3306/ppc_dev" userId="ppdcuser_credit"
password="pwd">
</jdbcConnection>
<javaModelGenerator targetPackage="test.model" targetProject="D:\weidir\weitool\src\main\java">
<property name="trimStrings" value="true" />
</javaModelGenerator>
<sqlMapGenerator targetPackage="test.xml" targetProject="D:\weidir\weitool\src\main\resources"/>
<javaClientGenerator type="ANNOTATEDMAPPER" targetPackage="test.dao" targetProject="D:\weidir\weitool\src\main\java"/>
<!-- 需要生成代码的表名,每个表一个table节点如下 -->
<table tableName="PPC_GYPSOPHILA_RULE" />
<table tableName="PPC_GYPSOPHILA_LOG" />
<table tableName="PPC_GYPSOPHILA_TACTIC" domainObjectName="GypsophilaTactic"/>
</context>
</generatorConfiguration>
3,编写如下JAVA类,运行main函数:
package com.github.wangwei86609.weitool;
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 MybatisGeneator {
public static void main(String[] args) throws Exception {
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config = cp.parseConfiguration(
new File(MybatisGeneator.class.getClassLoader().getResource("generatorConfig.xml").getFile()));
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
myBatisGenerator.generate(null);
}
}