mybatis自动构建 对应 pojo mapper xml等文件

使用maven 搭建项目 添加所需jar包，再pom.xml中

<!-- MyBatis相关包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.3.0</version>
        </dependency>
        <!-- 自动构建mybatis 对应mapper文件 -->
        <dependency>
    		<groupId>org.mybatis.generator</groupId>
    		<artifactId>mybatis-generator-core</artifactId>
    		<version>1.3.5</version>
		</dependency>
        
        <!-- MySQL相关包  必须使用高版本的数据连接包否则数据库连接不同  原先用的版本是 5.1.26 连接后报错连接不通数据库-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.46</version>
        </dependency>

创建generator.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>
	<!-- 数据库驱动包位置 D:\software\lib\mysql-connector-java-5.1.21.jar-->
	<classPathEntry location="E:\mavn\repository\mysql\mysql-connector-java\5.1.46\mysql-connector-java-5.1.46.jar" />
	<!-- <classPathEntry location="C:\oracle\product\10.2.0\db_1\jdbc\lib\ojdbc14.jar" /> -->
	<context id="DB2Tables" targetRuntime="MyBatis3">
		<commentGenerator>
			<property name="suppressAllComments" value="true" />
		</commentGenerator>
		<!-- 数据库链接URL、用户名、密码 -->
		<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/test" userId="root" password="root">
		<!-- <jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@localhost:1521:orcl" userId="msa" password="msa">-->
		</jdbcConnection> 
		<javaTypeResolver>
			<property name="forceBigDecimals" value="false" />
		</javaTypeResolver>
		<!-- 生成模型的包名和位置 -->
		<javaModelGenerator targetPackage="sy.model" targetProject="f:\study\mybatis\src">
			<property name="enableSubPackages" value="true" />
			<property name="trimStrings" value="true" />
		</javaModelGenerator>
		<!-- 生成的映射文件包名和位置 -->
		<sqlMapGenerator targetPackage="sy.mapping" targetProject="f:\study\mybatis\src">
			<property name="enableSubPackages" value="true" />
		</sqlMapGenerator>
		<!-- 生成DAO的包名和位置 -->
		<javaClientGenerator type="XMLMAPPER" targetPackage="sy.dao" targetProject="f:\study\mybatis\src">
			<property name="enableSubPackages" value="true" />
		</javaClientGenerator>
		<!-- 要生成那些表(更改tableName和domainObjectName就可以) -->
		<table tableName="user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
		<!-- <table tableName="tbug" domainObjectName="Bug" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
		<table tableName="tmenu" domainObjectName="Menu" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
		<table tableName="tonline" domainObjectName="Online" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
		<table tableName="tresource" domainObjectName="Resource" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
		<table tableName="trole" domainObjectName="Role" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
		<table tableName="trole_tresource" domainObjectName="RoleResource" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
		<table tableName="tuser" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
		<table tableName="tuser_trole" domainObjectName="UserRole" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
	 	-->
	 </context>
</generatorConfiguration>

文件路径如下：

创建MyBatisGeneratorUtil工具类 ，用main方法执行即可实现文件的创建

package top.lolcl.myblog.auto.util;

import java.io.File;
import java.io.IOException;
import java.sql.SQLException;
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.exception.InvalidConfigurationException;
import org.mybatis.generator.exception.XMLParserException;
import org.mybatis.generator.internal.DefaultShellCallback;

/**
 * mybatis自动构建 对应mapper pojo xml等文件
 * @author sanchoziyan
 *
 */
public class MyBatisGeneratorUtil {

	public static void main(String[] args) throws IOException {
		try {
			System.out.println("startgenerator ...");
			List<String> warnings = new ArrayList<String>();
			boolean overwrite = true;
			//配置文件路径
			String batpath = new File("").getCanonicalPath() +
							"\\src\\main\\java\\top\\lolcl\\myblog\\auto\\util\\file\\generator.xml";
			File configFile = new File(batpath);
			System.out.println(configFile.exists());
			//配置文件解析
			ConfigurationParser cp = new ConfigurationParser(warnings);	
			Configuration config = cp.parseConfiguration(configFile);
			//回滚
			DefaultShellCallback callback = new DefaultShellCallback(overwrite);
			MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
			myBatisGenerator.generate(null);
			System.out.println("endgenerator");
		} catch (XMLParserException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (InvalidConfigurationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		

	}

}

还有一种是通过命令行模式进行创建：此处省略