mybatis逆向工程

Posted 2020-10-24 1斑点

 <?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>

<!-- 是否去除自动生成的注释 true：是 ： false:否 -->

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

</commentGenerator>

<!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->

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

connectionURL="jdbc:mysql://localhost:3306/mybatis" userId="root"

password="root">

</jdbcConnection>

<!-- <jdbcConnection driverClass="oracle.jdbc.OracleDriver"

connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:yycg" 

userId="yycg"

password="yycg">

</jdbcConnection> -->

 

<!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和 

NUMERIC 类型解析为java.math.BigDecimal -->

<javaTypeResolver>

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

</javaTypeResolver>

 

<!-- targetProject:生成PO类的位置 -->

<javaModelGenerator targetPackage="cn.itheima.mybatis.pojo"

targetProject=".\src">

<!-- enableSubPackages:是否让schema作为包的后缀 -->

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

<!-- 从数据库返回的值被清理前后的空格 -->

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

</javaModelGenerator>

        <!-- targetProject:mapper映射文件生成的位置 -->

<sqlMapGenerator targetPackage="cn.itheima.mybatis.mapper" 

targetProject=".\src">

<!-- enableSubPackages:是否让schema作为包的后缀 -->

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

</sqlMapGenerator>

<!-- targetPackage：mapper接口生成的位置 -->

<javaClientGenerator type="XMLMAPPER"

targetPackage="cn.itheima.mybatis.mapper" 

targetProject=".\src">

<!-- enableSubPackages:是否让schema作为包的后缀 -->

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

</javaClientGenerator>

<!-- 指定数据库表 -->

<table schema="" tableName="user"></table>

<table schema="" tableName="orders"></table>

<!-- 有些表的字段需要指定java类型

 <table schema="" tableName="user">

<columnOverride column="id" javaType="Long" />

</table> -->

</context>

</generatorConfiguration>

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 官方使用‘

 

 

import java.io.File;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

 

import org.mybatis.generator.api.MyBatisGenerator;

import org.mybatis.generator.config.Configuration;

import org.mybatis.generator.config.xml.ConfigurationParser;

import org.mybatis.generator.exception.XMLParserException;

import org.mybatis.generator.internal.DefaultShellCallback;

 

public class GeneratorSqlmap {

 

public void generator() throws Exception{

 

List<String> warnings = new ArrayList<String>();

boolean overwrite = true;

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();

}

 

}

 

}

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