使用Mybatis逆向工程步骤

1、在pom.xml中添加

<dependency>

    <groupId>org.mybatis.generator</groupId>

    <artifactId>mybatis-generator-core</artifactId>

    <version>1.3.5</version>

</dependency>

2、在项目下创建mbg.xml,内容如下，可修改成自己的包路径

<?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">

  <!-- 逆向工程生成时不要注释 -->

  <commentGenerator>

  <property name="suppressAllComments" value="true" />

</commentGenerator>

  <!-- 配置数据库连接信息 -->

    <jdbcConnection driverClass="com.mysql.jdbc.Driver"

        connectionURL="jdbc:mysql://localhost:3306/mon201903"

        userId="root"

        password="1234">

    </jdbcConnection>

<!-- 不管先 -->

    <javaTypeResolver >

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

    </javaTypeResolver>

<!-- 指定JavaBean生成的位置 -->

    <javaModelGenerator 

    targetPackage="com.sun.bean" 

    targetProject=".\src\main\java">

      <property name="enableSubPackages" value="true" />

      <property name="trimStrings" value="true" />

    </javaModelGenerator>

<!-- 指定sql映射文件生成位置 -->

    <sqlMapGenerator 

    targetPackage="mapper"  

    targetProject=".\src\main\resources">

      <property name="enableSubPackages" value="true" />

    </sqlMapGenerator>

<!-- 指定dao接口生成位置 -->

    <javaClientGenerator type="XMLMAPPER" 

    targetPackage="com.sun.dao"  

    targetProject=".\src\main\java">

      <property name="enableSubPackages" value="true" />

    </javaClientGenerator>

<!-- table指定每个表生成策略,指定实体类Bean的类名 -->

    <table tableName="tab_emp" domainObjectName="Employee"></table>

    <table tableName="tab_dept" domainObjectName="Dept"></table>

  </context>

</generatorConfiguration>

3、编写测试类

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);

}

}