一、创建一个maven或web工程
使用XML配置文件:
package zqq.trys.utils; 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; public class MBG { public static void main(String[] args) { List<String> warnings = new ArrayList<String>(); boolean overwrite = true; File configFile = new File("mbg.xml");//这里是加载mybatis generator自动生成的配置文件,注意文件名不要弄错 ConfigurationParser cp = new ConfigurationParser(warnings); Configuration config; try { config = cp.parseConfiguration(configFile); DefaultShellCallback callback = new DefaultShellCallback(overwrite); MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings); myBatisGenerator.generate(null); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } 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(); } } }二、有MBG程序就需要有XML配置文件mbg.xml(也可以从根路径下创建配置文件与上文对应)
<?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 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/pocketmaterial" userId="root" password="123456"> </jdbcConnection> <javaTypeResolver> <property name="forceBigDecimals" value="false" /> </javaTypeResolver> <!-- 指定javaBean生成的位置 --> <javaModelGenerator targetPackage="zqq.trys.bean" targetProject=".\src\main\java"> <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=".\src\main\resources"> <property name="enableSubPackages" value="true" /> </sqlMapGenerator> <!-- 指定dao接口生成的位置,mapper接口 --> <javaClientGenerator type="XMLMAPPER" targetPackage="com.trys.dao" targetProject=".\src\main\java"> <property name="enableSubPackages" value="true" /> </javaClientGenerator> <!-- table指定每个表的生成策略 --> <table tableName="employee" domainObjectName="Employee"></table> <table tableName="department" domainObjectName="Department"></table> </context> </generatorConfiguration>三、需要两个jar包
可以选择导入jar的形式:mybatis-generator-core-1.3.5.jar和mysql-connector-java-5.1.40.jar
也可以利用maven:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>zqq.trys</groupId> <artifactId>PocketMaterial</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>PocketMaterial Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <!-- MBG --> <!-- mybatis-generator --> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.5</version> </dependency> <!--mysql-connector --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.40</version> </dependency> </dependencies> <build> <finalName>PocketMaterial</finalName> </build> </project>