MyBatis逆向工程 - MyBatis Generator的使用
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<!-- pom.xml --> <!-- MBG --> <!-- 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>
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在项目主目录下创建
mbg.xml
(也就是和pom.xml一个目录)MyBatis Generator 官方给出了xml文件的示例 http://mybatis.org/generator/configreference/xmlconfig.html, 我们只需要在这基础上稍作修改。
<?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"> <!-- 设置不生成注释,可写,可不写--> <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/ssm" userId="root" password="333"> </jdbcConnection> <javaTypeResolver > <property name="forceBigDecimals" value="false" /> </javaTypeResolver> <!-- JavaBean生成的位置--> <javaModelGenerator targetPackage="com.Jancoyan.domain" targetProject="./src/main/java"> <property name="enableSubPackages" value="true" /> <property name="trimstrings" value="true" /> </javaModelGenerator> <!-- mapper文件生成的位置--> <sqlMapGenerator targetPackage="mapper" targetProject="./src/main/resources"> <property name="enableSubPackages" value="true" /> </sqlMapGenerator> <!-- DAO文件生成的位置--> <javaClientGenerator type="XMLMAPPER" targetPackage="com.Jancoyan.dao" targetProject="./src/main/java"> <property name="enableSubPackages" value="true" /> </javaClientGenerator> <!-- 表相关数据--> <!-- tableName表示需要生成的表名字 domainObjectName 表示生成的类名--> <table tableName="tbl_dept" domainObjectName="Department" /> <table tableName="tbl_emp" domainObjectName="Employee" /> </context> </generatorConfiguration>
相关标签解释:
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package com.Jancoyan.test; 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 MBGTest { public static void main(String[] args) throws Exception { List<String> warnings = new ArrayList<String>(); boolean overwrite = true; File configFile = new File("mbg.xml"); // 自己的配置文件的名称 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); } }
运行成功之后就生成了相关类。