Mybatis generator反向生成Bean,Mapper步骤_mybatis逆向生成bean mapper-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_43557392/article/details/104652302

本文档详细介绍了如何使用Mybatis Generator进行反向工程，包括导入核心依赖，创建mbg.xml配置文件，并编写运行该配置的Java类。通过这些步骤，可以自动生成Bean和Mapper，简化开发工作。

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0.导入核心依赖

<dependency>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-core</artifactId>
    <version>1.3.7</version>
</dependency>

1.创建mbg.xml(在项目路径下)

<?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">
<!--        去掉反向生成的注释-->
        <commentGenerator>
            <property name="suppressAllComments" value="true" />
        </commentGenerator>
<!--        mybatis连接数据库-->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/moxing3?serverTimezone=GMT%2B8"
                        userId="root"
                        password="root">
        </jdbcConnection>

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

<!--        生成的bean路径-->
        <javaModelGenerator targetPackage="com.mark.bean" targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>

<!--        xxxmapper.xml生成的路径-->
        <sqlMapGenerator targetPackage="mapper"  targetProject=".\src\main\resources">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>

<!--        xxxmapper接口生成的路径-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.mark.mapper"  targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>

<!--        让数据库中的表反向生成类-->
        <table schema="DB2ADMIN" tableName="ceshi_2_mrcg" domainObjectName="Mrcg"/>
        <table schema="DB2ADMIN" tableName="ceshi_2_mrgpc" domainObjectName="Mrgpc"/>
        <table schema="DB2ADMIN" tableName="ceshi_2_mrzzc" domainObjectName="Mrzzc"/>
        <table schema="DB2ADMIN" tableName="gpdm" domainObjectName="Gpdm"/>
        <table schema="DB2ADMIN" tableName="gprkb" domainObjectName="Gprkb"/>

    </context>
</generatorConfiguration>

2.编写一个启动该xml文件的类,并运行

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);
    }
}