逆向工程

创建一个普通的java类

导入三个jar包

在项目下创建一个generatorConfig.xml文件里面内容如下

 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 
 6 <generatorConfiguration>
 7     <!--    <classPathEntry location="/Program Files/IBM/SQLLIB/java/db2java.zip" />-->
 8 
 9     <context id="DB2Tables" targetRuntime="MyBatis3">
10         <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
11                         connectionURL="jdbc:mysql://localhost:3306/test"
12                         userId="root"
13                         password="ych521mm">
14         </jdbcConnection>
15 
16         <javaTypeResolver>
17             <property name="forceBigDecimals" value="false"/>
18         </javaTypeResolver>
19 
20         <!-- 生成实体类 -->
21         <javaModelGenerator targetPackage="com.ujy.pojo" targetProject=".src">
22             <property name="enableSubPackages" value="true"/>
23             <property name="trimStrings" value="true"/>
24         </javaModelGenerator>
25 
26         <!-- 生成映射文件 -->
27         <sqlMapGenerator targetPackage="com.ujy.mapper" targetProject=".src">
28             <property name="enableSubPackages" value="true"/>
29         </sqlMapGenerator>
30 
31         <!-- 生成接口 -->
32         <javaClientGenerator type="XMLMAPPER" targetPackage="com.ujy.mapper" targetProject=".src">
33             <property name="enableSubPackages" value="true"/>
34         </javaClientGenerator>
35 
36         <table tableName="user" domainObjectName="User"/>
37         <table tableName="person" domainObjectName="Person"/>
38     </context>
39 </generatorConfiguration>

在建一个生成类随意就行

里面建造main方法

内容如下

 1 public class Generator {
 2     public static void main(String[] args) throws Exception {
 3         List<String> warnings = new ArrayList<String>();
 4         boolean overwrite = true;
 5         File configFile = new File("generatorConfig.xml");
 6         ConfigurationParser cp = new ConfigurationParser(warnings);
 7         Configuration config = cp.parseConfiguration(configFile);
 8         DefaultShellCallback callback = new DefaultShellCallback(overwrite);
 9         MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
10         myBatisGenerator.generate(null);
11     }
12 }

测试即可直接生成