mybatis.generator的试用

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pom.xml:

<dependencies><dependency><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-core</artifactId><version>1.3.3</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.2.8</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.35</version></dependency><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.16</version></dependency></dependencies>

generatorConfig.xml:

<?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="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><!--数据库连接的信息：驱动类、连接地址、用户名、密码,这里配置的是mysql的，当然也可以配置oracle等数据库 --><jdbcConnection driverClass="com.mysql.jdbc.Driver"connectionURL="jdbc:mysql://10.0.4.122:3306/cognos" userId="root"password="123456"></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="com.touna.salaryProgram.bean"targetProject=".\src"><!-- 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="com.touna.salaryProgram.mapper"targetProject=".\src"><!-- 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="com.touna.salaryProgram.mapper" targetProject=".\src"><!-- enableSubPackages:是否让schema作为包的后缀 --><property name="enableSubPackages" value="false" /></javaClientGenerator><!-- 指定数据库表 --><table tableName="tb_salary_teammanagers"></table></context></generatorConfiguration>

处理类:

//配置文件和处理类在同一包下:

package com.tanlei.generate;import java.io.File;import java.net.URL;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 GenerateFile {     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(getPackagePath("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 String getPackagePath(String filename)      {          String result=null;          URL urlpath=GetPath.class.getResource("");          String path=urlpath.toString();          if(path.startsWith("file"))          {              path=path.substring(5);          }          path.replace("/", File.separator);          result=path+filename;          return result;      }      public static void main(String[] args) throws Exception {        try {            GenerateFile generatorSqlmap = new GenerateFile();            generatorSqlmap.generator();        } catch (Exception e) {            e.printStackTrace();        }           }  }

只要这3个文件和更改generatorConfig的配置(有注释)，就可以生成对应的文件

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