mybatis逆向工程

1、引入pom.xml依赖

 <!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core -->
 <dependency>
      <groupId>org.mybatis.generator</groupId>
      <artifactId>mybatis-generator-core</artifactId>
      <version>1.4.0</version>
 </dependency>

2、编写配置文件：

<!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="simple" targetRuntime="MyBatis3">
        <!--指向数据库连接-->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/demo?serverTimezone=UTC"
                        userId="root"
                        password="123456"
        />

        <!--生成对应的实体类
        targetPackage：指定生成java文件的目录
        targetProject：放在那个工程的哪个目录下
        -->
        <javaModelGenerator targetPackage="com.llxazy.bean" targetProject="src/main/java"/>

        <!--SQL映射文件生成器
        targetPackage：指定生成java文件的目录
        targetProject：放在那个工程的哪个目录下
        -->
        <sqlMapGenerator targetPackage="com.llxazy.dao" targetProject="src/main/resources"/>

        <!--dao接口生成器-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.llxazy.dao" targetProject="src/main/java"/>

        <!--指定要逆向生成的数据表
        tableName:表名
        domainObjectName:对象名
        -->
        <table tableName="emp" domainObjectName="Emp" enableCountByExample="false" enableDeleteByExample="false" enableUpdateByExample="false" selectByExampleQueryId="false" enableSelectByExample="false"/>
        <table tableName="dept" domainObjectName="Dept" enableCountByExample="false" enableDeleteByExample="false" enableUpdateByExample="false" selectByExampleQueryId="false" enableSelectByExample="false"/>
    </context>
</generatorConfiguration>

3、编写测试类

package com.lilxazy;

import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.exception.InvalidConfigurationException;
import org.mybatis.generator.exception.XMLParserException;
import org.mybatis.generator.internal.DefaultShellCallback;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

public class Test {
    public static void main(String[] args) throws IOException, XMLParserException, InvalidConfigurationException, SQLException, InterruptedException {
        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);

    }
}

 

此只是学习过程中摘抄的笔记，方便后续复习时使用。