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

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE generatorConfiguration
 3   PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
 4   "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
 5 <generatorConfiguration>
 6 
 7     <context id="DB2Tables" targetRuntime="MyBatis3">
 8         <commentGenerator>
 9             <property name="suppressAllComments" value="true" />
10         </commentGenerator>
11         <!-- 配置数据库连接 -->
12         <jdbcConnection driverClass="com.mysql.jdbc.Driver"
13             connectionURL="jdbc:mysql://localhost:3306/ssm_crud" userId="root"
14             password="root">
15         </jdbcConnection>
16 
17         <javaTypeResolver>
18             <property name="forceBigDecimals" value="false" />
19         </javaTypeResolver>
20 
21         <!-- 指定javaBean生成的位置 -->
22         <javaModelGenerator targetPackage="com.shao.demo.entity"
23             targetProject=".srcmainjava">
24             <property name="enableSubPackages" value="true" />
25             <property name="trimStrings" value="true" />
26         </javaModelGenerator>
27 
28         <!--指定sql映射文件生成的位置 -->
29         <sqlMapGenerator targetPackage="mapper" targetProject=".srcmain
esources">
30             <property name="enableSubPackages" value="true" />
31         </sqlMapGenerator>
32 
33         <!-- 指定dao接口生成的位置，mapper接口 -->
34         <javaClientGenerator type="XMLMAPPER"
35             targetPackage="com.shao.demo.dao" targetProject=".srcmainjava">
36             <property name="enableSubPackages" value="true" />
37         </javaClientGenerator>
38 
39 
40         <!-- table指定每个表的生成策略 -->
41         <table tableName="user" domainObjectName="User"></table>
42         <!-- <table tableName="tbl_emp" domainObjectName="Employee"></table>
43         <table tableName="tbl_dept" domainObjectName="Department"></table> -->
44     </context>
45 </generatorConfiguration>

测试工具类编写

 1 package com.shao.test;
 2 
 3 import java.io.File;
 4 import java.util.ArrayList;
 5 import java.util.List;
 6 
 7 import org.mybatis.generator.api.MyBatisGenerator;
 8 import org.mybatis.generator.config.Configuration;
 9 import org.mybatis.generator.config.xml.ConfigurationParser;
10 import org.mybatis.generator.internal.DefaultShellCallback;
11 
12 public class MBGTest {
13 
14     public static void main(String[] args) throws Exception {
15         List<String> warnings = new ArrayList<String>();
16         boolean overwrite = true;
17         File configFile = new File("mbg.xml");
18         ConfigurationParser cp = new ConfigurationParser(warnings);
19         Configuration config = cp.parseConfiguration(configFile);
20         DefaultShellCallback callback = new DefaultShellCallback(overwrite);
21         MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,
22                 callback, warnings);
23         myBatisGenerator.generate(null);
24     }
25 }