Spring 结合 Hibernate 配置 C3P0(转载)
转载自:http://breezee.blog.51cto.com/101744/35977
如有侵权,敬请告知,谢谢
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applicationContext.xml 文件:<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" ??? xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ??? xmlns:jee="http://www.springframework.org/schema/jee" ??? xsi:schemaLocation="http://www.springframework.org/schema/beans [url]http://www.springframework.org/schema/beans/spring-beans-2.0.xsd[/url] ??????????? [url]http://www.springframework.org/schema/jee[/url] [url]http://www.springframework.org/schema/jee/spring-jee-2.0.xsd[/url]"> ??? <bean id="dataSource" ??? ??? class="com.mchange.v2.c3p0.ComboPooledDataSource" ??? ??? destroy-method="close"> ??????? <property name="driverClass"> ??????? ??? <value>com.mysql.jdbc.Driver</value> ??? ??? </property> ??????? <property name="jdbcUrl"> ??????? ??? <value>jdbc:mysql://192.168.3.110:3306/DBName?useUnicode=true&characterEncoding=GBK</value> ??? ??? </property> ??????? <property name="user"> ??????? ??? <value>root</value> ??? ??? </property> ??????? <property name="password"> ??????? ??? <value>root</value> ??? ??? </property> ??<!--连接池中保留的最小连接数。-->??? ??? <property name="minPoolSize"> ??????? ??? <value>5</value> ??? ??? </property> ??<!--连接池中保留的最大连接数。Default: 15 -->??? ??? <property name="maxPoolSize"> ??????? ??? <value>30</value> ??? ??? </property> ?<!--初始化时获取的连接数,取值应在minPoolSize与maxPoolSize之间。Default: 3 -->??? ??? <property name="initialPoolSize"> ??????? ??? <value>10</value> ??? ??? </property> ??<!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->??? ??? <property name="maxIdleTime"> ??????? ??? <value>60</value> ??? ??? </property> ??<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->??????? <property name="acquireIncrement"> ??????? ??? <value>5</value> ??? ??? </property> ??<!--JDBC的标准参数,用以控制数据源内加载的PreparedStatements数量。但由于预缓存的statements
? 属于单个connection而不是整个连接池。所以设置这个参数需要考虑到多方面的因素。
? 如果maxStatements与maxStatementsPerConnection均为0,则缓存被关闭。Default: 0-->??????? <property name="maxStatements"> ??????? ??? <value>0</value> ??? ??? </property> ??<!--每60秒检查所有连接池中的空闲连接。Default: 0 -->??? ??? <property name="idleConnectionTestPeriod"> ??????? ??? <value>60</value> ??? ??? </property> ??<!--定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 -->??? ??? <property name="acquireRetryAttempts"> ??????? ??? <value>30</value> ??? ??? </property> ??<!--获取连接失败将会引起所有等待连接池来获取连接的线程抛出异常。但是数据源仍有效
? 保留,并在下次调用getConnection()的时候继续尝试获取连接。如果设为true,那么在尝试
? 获取连接失败后该数据源将申明已断开并永久关闭。Default: false-->??????? <property name="breakAfterAcquireFailure"> ??????? ??? <value>true</value> ??? ??? </property> ??<!--因性能消耗大请只在需要的时候使用它。如果设为true那么在每个connection提交的
? 时候都将校验其有效性。建议使用idleConnectionTestPeriod或automaticTestTable
? 等方法来提升连接测试的性能。Default: false -->??????? <property name="testConnectionOnCheckout"> ??????? ??? <value>false</value> ??? ??? </property> ??? </bean> ??? <!-- Hibernate SessionFactory --> ??? <bean id="sessionFactory" ??? ??? class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> ??? ??? <property name="dataSource"> ??????? ??? <ref local="dataSource" /> ??? ??? </property> ??? ??? <property name="mappingResources"> ??????? ??? <list> ??????????? ??? <value>com/xh/hibernate/vo/User.hbm.xml</value> ??????? ??? </list> ??? ??? </property> ??? ??? <property name="hibernateProperties"> ??????? ??? <props> ??????????? ??? <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop> ??????????? ??? <prop key="hibernate.show_sql">true</prop> ??????????? ??? <prop key="hibernate.generate_statistics">true</prop> ??????????? ??? <prop key="hibernate.connection.release_mode">auto</prop> ??????????? ??? <prop key="hibernate.autoReconnect">true</prop> ??????? ??? </props> ??? ??? </property> ??? </bean> </beans> 1 楼 不鸣则已 2012-05-07 转载的不错,挺好的。