数据库连接池c3p0 ,Proxool ,Druid ,Tomcat Jdbc Pool对比测试
几种驱动在Hibernate的配置:
Druid:Hibernate操作数据库文件不会报错,jdts容易报错。
为了方便大家迁移,Druid的配置和DBCP是基本一致的,如果你原来是使用DBCP,迁移是十分方便的,只需要把corg.apache.commons.dbcp.BasicDataSource修改为om.alibaba.druid.pool.DruidDataSource就好了。
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <!-- <bean id="dataSource" class="java.sql.DriverManager.BasicDataSource" destroy-method="close">--> <property name="url" value="jdbc:sqlserver://192.168.0.167:1433;DatabaseName=test" /> <property name="username" value="sa" /> <property name="password" value="sa" /> <property name="filters" value="stat" /> <property name="maxActive" value="20" /> <property name="initialSize" value="1" /> <property name="maxWait" value="60000" /> <property name="minIdle" value="1" /> <property name="timeBetweenEvictionRunsMillis" value="60000" /> <property name="minEvictableIdleTimeMillis" value="300000" /> <property name="validationQuery" value="SELECT 'x'" /> <property name="testWhileIdle" value="true" /> <property name="testOnBorrow" value="false" /> <property name="testOnReturn" value="false" /> <property name="poolPreparedStatements" value="true" /> <property name="maxPoolPreparedStatementPerConnectionSize" value="50" /> </bean>
在上面的配置中,通常你需要配置url、username、password、maxActive这几项。
在DruidDataSource中,你可以不配置DriverClass,它根据url自动识别。Druid能够自动识别20多中url,常见的JDBCDriver都包括了。
JDTS:
<bean id="dataSource" class="java.sql.DriverManager.BasicDataSource" destroy-method="close"> <!-- <bean id="dataSource" class="com.rh.RHBasicDataSource" destroy-method="close">--> <property name="driverClassName" value="net.sourceforge.jtds.jdbc.Driver"/> <property name="url" value="jdbc:jtds:sqlserver://192.168.0.167:1433/test"/> <property name="username" value="sa"/> <property name="password" value="sa"/> <property name="maxActive" value="600"/> <property name="maxWait" value="10000"/> <property name="minIdle" value="500"/> <property name="poolPreparedStatements" value="true"/> <property name="defaultAutoCommit" value="true"/> <property name="validationQuery" value="SELECT 1+1"/> <property name="testOnBorrow" value="true"/> </bean>
c3p0
<?xml version='1.0' encoding='UTF-8'?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <!-- Generated by MyEclipse Hibernate Tools. --> <hibernate-configuration> <session-factory> <property name="connection.username">sa</property> <property name="connection.url">jdbc:sqlserver://192.168.1.100:1433;databaseName=TestDB</property> <property name="dialect">org.hibernate.dialect.SQLServerDialect</property> <property name="connection.password">sa</property> <property name="hibernate.c3p0.max_size">50</property> <property name="hibernate.c3p0.min_size">5</property> <property name="hibernate.c3p0.timeout">100</property> <property name="hibernate.c3p0.idle_test_period">100</property> <property name="hibernate.c3p0.max_statements">150</property> <property name="hibernate.c3p0.acquire_increment">3</property> <property name="hibernate.connection.driver_class">org.hibernate.dialect.SQLServerDialect</property> <property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property> <property name="connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property> <!--实体--> <mapping class="gk.data.entities.User" /> ...... </session-factory> </hibernate-configuration>
JNDI+dbcp连接池
<hibernate-configuration> <session-factory> <property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property> <property name="connection.datasource">java:comp/env/jdbc/ManageDB</property> <!--实体映射--> <mapping class="com.data.entities.User" /> ..... </session-factory> </hibernate-configuration>
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName" value="java:comp/env/jndi/rh_cpm"> </property> </bean>
在项目的webRoot/META-INF文件夹下面新建context.xml或者tomcat的conf/context.xml添加如下内容
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE XML> <Context path="/Manage" docBase="Manage" debug="5" reloadable="true" crossContext="true" > <!-- 数据库连接 begin--> <!-- 被操作库 --> <Resource name="jdbc/ManageDB" auth="Container" type="javax.sql.DataSource" maxActive="5" maxIdle="5" maxWait="5000" factory="org.apache.commons.dbcp.BasicDataSourceFactory" driverClassName="net.sourceforge.jtds.jdbc.Driver" url="jdbc:jtds:sqlserver://192.168.1.100:1433/TestDB" username="sa" password="sa" testOnBorrow="true" testWhileIdle="true" validationQuery="select getdate()" /> </Context>
连接池c3p0,Proxool,Druid,TomcatJdbcPool对比测试[/url]:[url]http://286.iteye.com/blog/1920417,原文没有jdts的测试。
以下就是此次测试结果(本结果只供参考,更具体更准确的测试可以自行进行):
1.测试次数为10次时:
平均用时(单位:毫秒):
c3p032.26
Proxool33.42
Druid30.43
TomcatJdbcPool37.61
2.测试次数为100次时:
平均用时(单位:毫秒):
c3p0409.94
Proxool447.49
Druid382.7
TomcatJdbcPool386.3
3.测试次数为500次时:
平均用时(单位:毫秒):
c3p01700.95
Proxool2053.85
Druid1777.36
TomcatJdbcPool1749.02
4.测试次数为1000次时:
平均用时(单位:毫秒):
c3p03549.29
Proxool3435.8
Druid3167.59
TomcatJdbcPool3162.25