IntelliJ IDEA mybatis-generator逆向工程生成代码

素颜马尾好姑娘i 2024-04-17 15:40 78阅读 0赞

**1）导入maven依赖**

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

**2）在resources资源下添加逆向生成文件**

<?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>
    
    	<properties resource="jdbc.properties"></properties>
    	<context id="DB2Tables" targetRuntime="MyBatis3">
    		
    		<commentGenerator>
    			<property name="suppressAllComments" value="true" />
    		</commentGenerator>
    		
    		<jdbcConnection driverClass="${driverClassName}"
    			connectionURL="${url}"
    			userId="${username}"
    			password="${password}">
    		</jdbcConnection>
    
    		<javaTypeResolver>
    			<property name="forceBigDecimals" value="false" />
    		</javaTypeResolver>
    
    		
    		<javaModelGenerator targetPackage="com.example.bean"
    			targetProject=".\src\main\java">
    			<property name="enableSubPackages" value="true" />
    			<property name="trimStrings" value="true" />
    		</javaModelGenerator>
    
    		
    		<sqlMapGenerator targetPackage="com.example.dao"
    		targetProject=".\src\main\java">
    			<property name="enableSubPackages" value="true" />
    		</sqlMapGenerator>
    
    		
    		<javaClientGenerator type="XMLMAPPER"
    			targetPackage="com.example.dao"
    			targetProject=".\src\main\java">
    			<property name="enableSubPackages" value="true" />
    		</javaClientGenerator>
    
    
    		
    		<table tableName="items" domainObjectName="Items"></table>
    
    	</context>
    </generatorConfiguration>

**3）创建main方法调用逆向文件，生成JavaBean、Mapper映射**

package com.ssm.test;
    
    import org.mybatis.generator.api.MyBatisGenerator;
    import org.mybatis.generator.config.Configuration;
    import org.mybatis.generator.config.xml.ConfigurationParser;
    import org.mybatis.generator.internal.DefaultShellCallback;
    
    import java.io.File;
    import java.io.InputStream;
    import java.util.ArrayList;
    import java.util.List;
    
    public class TestGen {
    
        public static void main(String[] args) throws Exception {
    
            List<String> warnings = new ArrayList<String>();
            boolean overwrite = true;
            ConfigurationParser cp = new ConfigurationParser(warnings);
            //构造输入流对象
            InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream("mbg.xml");
            Configuration config = cp.parseConfiguration(is);
            DefaultShellCallback callback = new DefaultShellCallback(overwrite);
            MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
            myBatisGenerator.generate(null);
        }
    }

**4）如果效果图如下就生成成功了**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h1emVjb20_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h1emVjb20_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/1f46d54f7f494eaa81e29d1e228ea1a8.png