ssm框架的整合搭建（三）

mybatis逆向工程工具类的使用---mybatis  generator

项目结构

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="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/ssm_crud" userId="root"
             password="root">
         </jdbcConnection>

         <javaTypeResolver>
             <property name="forceBigDecimals" value="false" />
         </javaTypeResolver>

         <!-- 指定javaBean生成的位置 -->
         <javaModelGenerator targetPackage="com.shao.demo.entity"
             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.shao.demo.dao" targetProject=".\src\main\java">
             <property name="enableSubPackages" value="true" />
         </javaClientGenerator>

         <!-- table指定每个表的生成策略 -->
         <table tableName="user" domainObjectName="User"></table>
         <!-- <table tableName="tbl_emp" domainObjectName="Employee"></table>
         <table tableName="tbl_dept" domainObjectName="Department"></table> -->
     </context>
 </generatorConfiguration>

测试工具类编写

 package com.shao.test;

 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 MBGTest {

     public static void main(String[] args) throws Exception {
         List<String> warnings = new ArrayList<String>();
         boolean overwrite = true;
         File configFile = new File("mbg.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);
     }
 }