Mybatis 打开连接池和关闭连接池性能对比

1  创建数据库表

-- phpMyAdmin SQL Dump
-- version 4.2.11
-- http://www.phpmyadmin.net
--
-- Host: localhost
-- Generation Time: 2016-08-02 18:13:50
-- 服务器版本: 5.6.21
-- PHP Version: 5.6.3 SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00"; /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */; --
-- Database: `mybatis`
-- -- -------------------------------------------------------- --
-- 表的结构 `Student`
-- CREATE TABLE IF NOT EXISTS `Student` (
`id` int(10) NOT NULL,
`name` varchar(256) NOT NULL,
`age` int(4) NOT NULL
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1; --
-- 转存表中的数据 `Student`
-- INSERT INTO `Student` (`id`, `name`, `age`) VALUES
(1, 'zhansan', 20); --
-- Indexes for dumped tables
-- --
-- Indexes for table `Student`
--
ALTER TABLE `Student`
ADD PRIMARY KEY (`id`); --
-- AUTO_INCREMENT for dumped tables
-- --
-- AUTO_INCREMENT for table `Student`
--
ALTER TABLE `Student`
MODIFY `id` int(10) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=2;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;

2.  测试代码如下

package mybatisInsertDataDemo;

import java.io.InputStream;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder; import mybatisInsertDataDemo.Student;
import mybatisInsertDataDemo.demo; public class demo { public static void main(String[] args) { String resource = "mybatisInsertDataDemo/conf.xml";
InputStream is = demo.class.getClassLoader().getResourceAsStream(resource); if(null == is)
{
System.out.println("inputstream is null");
return;
} SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(is); long start = System.currentTimeMillis(); for(int i=0;i<10000;i++)
{
SqlSession session = sessionFactory.openSession(); String statement = "mybatisInsertDataDemo.studentMapper.insertStudent";
Student s = new Student();
s.setAge(20);
s.setName("lisi"); session.insert(statement, s); session.close();
} System.out.println("waste time "+(System.currentTimeMillis()-start)); }
}

 3.  打开与关闭连接池 配置

<?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="development">
<environment id="development">
<transactionManager type="JDBC" />
<!-- 配置数据库连接信息 -->
<dataSource type="UNPOOLED"> <!--UNPOOLED 是关闭连接池,POOLED 是打开连接池-->
<property name="driver" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/mybatis" />
<property name="username" value="root" />
<property name="password" value="" />
</dataSource>
</environment>
</environments> <mappers>
<mapper resource="mybatisInsertDataDemo/studentMapper.xml"/>
</mappers> </configuration>

  

4. 对比结果

插入一万条数据

打开连接池:  6s

关闭连接池:  36s

源码下载: http://download.csdn.net/detail/mtour/9594178

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