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MyBatis在非Spring环境下第三方DataSource设置-Druid篇

首先在ITEye上面看到一个同标题文章,在此说明,此文并非转载自 http://iintothewind.iteye.com/blog/2069522 ,因为这篇文章根本就是错误的,照着上面做,工程可以跑,但是dataSource根本不是druid的

首先说明一下我使用的各个软件版本:

druid版本:1.0.8

<!-- mysql数据库连接池 pool -->
<dependency>
  <groupId>com.alibaba</groupId>
     <artifactId>druid</artifactId>
     <version>1.0.8</version>
</dependency>

mybatis版本:3.2.8

<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>3.2.8</version>
</dependency>

 

 

MyBatis在非Spring环境下第三方DataSource设置  ,代码如下:

mybatis.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <environments default="userDefine">
        <environment id="userDefine">
            <transactionManager type="JDBC" />
            <!-- 配置数据库连接信息 -->
            <dataSource type="com.chenjun.mysite.common.MyselfDefineDataSourceFactory">
                <property name="driverClass" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/site-aliyun"/>
                <property name="username" value="root"/>
                <property name="password" value="123456"/>
            </dataSource>
        </environment>
    </environments>
      <mappers>
        <mapper resource="mappings/modules/sys/userDao.xml"/>
    </mappers>
</configuration>
MyselfDefineDataSourceFactory是 ,自定义datasourceFactory ,作为type属性给上面的mybatis.xml文件
package com.chenjun.mysite.common;

import org.apache.ibatis.datasource.unpooled.UnpooledDataSourceFactory;

import com.alibaba.druid.pool.DruidDataSource;

public class MyselfDefineDataSourceFactory extends UnpooledDataSourceFactory {
    public MyselfDefineDataSourceFactory() {
        this.dataSource = new DruidDataSource();
    }
}

验证结论:

public class UserDao {
	private static final String NAME_SPACE = "com.chenjun.mysite.entity.User";
	public User test1(){
		User user = new User();
		SqlSessionFactory sqlSessionFactory;
		try {
			sqlSessionFactory = new SqlSessionFactoryBuilder().build(Resources.getResourceAsReader("mybatis.xml"),"userDefine");
			SqlSession session = sqlSessionFactory.openSession();
System.out.println("class="+session.getConfiguration().getEnvironment().getDataSource().getClass().getName()); DataSource ds = session.getConfiguration().getEnvironment().getDataSource(); if(ds instanceof DruidDataSource){ System.out.println("Yes"); }else{ System.out.println("No"); } user = session.selectOne(NAME_SPACE+"."+"test1"); } catch (IOException e) { e.printStackTrace(); } return user; } }

  最后输出

 

class=com.alibaba.druid.pool.DruidDataSource
Yes
15:55:09.817 [qtp2104354711-23] DEBUG org.apache.ibatis.transaction.jdbc.JdbcTransaction - Opening JDBC Connection
15:55:09.850 [qtp2104354711-23] INFO com.alibaba.druid.pool.DruidDataSource - {dataSource-1} inited

 

这才是集成druid的正确打开方式!!!

 

MyBatis在非Spring环境下第三方DataSource设置-Druid篇