mybatis逆向工程mybatisGeneratorCustom的使用

心已赠人 2022-05-15 06:06 207阅读 0赞

*  首先明确mybatis逆向工程是要干嘛的?

当我们设计好表后,可以通过mybatisGeneratorCustom逆向工程自动生成pojo类,mapper文件.我们主要需要自动生成pojo类,这样可以省下不少建pojo类的时间.mapper文件还是需要自己根据业务来编写的.

源码github下载地址：[https://github.com/wcyong/mybatisGeneratorCustom.git][https_github.com_wcyong_mybatisGeneratorCustom.git].

源码下载地址中有mybatisGeneratorCustom的介绍.mybatis逆向工程使用非常简单,下面将介绍使用步骤.

*  1.导工程,将mybatisGeneratorCustom工程导入IDE.
 *  2.修改配置文件

主要修改数据库连接,数据库名,pojo类,mapper类生成位置,表名等

<?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="testTables" targetRuntime="MyBatis3">
    		<commentGenerator>
    			
    			<property name="suppressAllComments" value="true" />
    		</commentGenerator>
    		
            
    		<jdbcConnection driverClass="com.mysql.jdbc.Driver"
    			connectionURL="jdbc:mysql://localhost:3306/mybatis" userId="root"
    			password="123456">
    		</jdbcConnection>
    
    		
    		<javaTypeResolver>
    			<property name="forceBigDecimals" value="false" />
    		</javaTypeResolver>
    
    		
            
    		<javaModelGenerator targetPackage="com.test.mybatis.pojo"
    			targetProject=".\src">
    			
    			<property name="enableSubPackages" value="false" />
    			
    			<property name="trimStrings" value="true" />
    		</javaModelGenerator>
    		
            
    		<sqlMapGenerator targetPackage="com.test.mybatis.mapper"
    			targetProject=".\src">
    			
    			<property name="enableSubPackages" value="false" />
    		</sqlMapGenerator>
    		
            
    		<javaClientGenerator type="XMLMAPPER"
    			targetPackage="com.test.mybatis.pojo" targetProject=".\src">
    			
    			<property name="enableSubPackages" value="false" />
    		</javaClientGenerator>
    		
            
    		<table schema="" tableName="test1"></table>
    		<table schema="" tableName="test2"></table>
    
    		
    		
    	</context>
    </generatorConfiguration>

*  3.运行提供的main函数

指定generator配置文件

public class GeneratorCustom {
    
    	public void generator() throws Exception{
    
    		List<String> warnings = new ArrayList<String>();
    		boolean overwrite = true;
    		//指定 逆向工程配置文件
    		File configFile = new File("generatorConfig.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);
    
    	} 
    	public static void main(String[] args) throws Exception {
    		try {
    			GeneratorSqlmap generatorSqlmap = new GeneratorSqlmap();
    			generatorSqlmap.generator();
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    		
    	}
    
    }

*  4.最后将生产的文件拷入自己的工程.
 *  里边的标签有不懂的参考[MyBatis Generator 详解][MyBatis Generator]：http://blog.csdn.net/weixin\_38009266/article/details/77865230
 *  转载自:[https://blog.csdn.net/weixin\_38009266/article/details/77865252][https_blog.csdn.net_weixin_38009266_article_details_77865252]

[https_github.com_wcyong_mybatisGeneratorCustom.git]: https://github.com/wcyong/mybatisGeneratorCustom.git
[MyBatis Generator]: http://blog.csdn.net/isea533/article/details/42102297
[https_blog.csdn.net_weixin_38009266_article_details_77865252]: https://blog.csdn.net/weixin_38009266/article/details/77865252