总结spring下配置dbcp,c3p0,proxool数据源链接池

2022-08-05 20:48:32

转载自 http://hiok.blog.sohu.com/66253191.html

applicationContext-datasource-jdbc.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans default-autowire="no" default-lazy-init="true" default-dependency-check="none"> <description>datasource</description>

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName"><value>${jdbc.driverClassName}</value></property>     <property name="url"><value>${jdbc.url}</value></property>
<property name="username"><value>${jdbc.username}</value></property>     <property name="password"><value>${jdbc.password}</value></property>     <property name="maxActive"><value>80</value></property>    <property name="maxIdle"><value>20</value></property>
    <property name="maxWait"><value>3000</value></property>     </bean>

<!-- ComboPooledDataSource 参数说明

maxIdleTime：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 acquireIncrement：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 maxStatements： 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 idleConnectionTestPeriod：每60秒检查所有连接池中的空闲连接。Default: 0 acquireRetryAttempts：定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 breakAfterAcquireFailure: 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 testConnectionOnCheckout：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 -->

</beans>

jdbc.properties

#jdbc.driverClassName=net.sourceforge.jtds.jdbc.Driver #jdbc.url=jdbc:jtds:sybase://192.168.1.1:5000/test;charset=eucgb #jdbc.username=test #jdbc.password=test

#jdbc.driverClassName=org.hsqldb.jdbcDriver #jdbc.url=jdbc:hsqldb:file:hsqldb/test #jdbc.username=sa #jdbc.password=

jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/test?user=root&password=root&useUnicode=true&characterEncoding=UTF-8&characterSetResults=UTF-8 jdbc.username=root jdbc.password=root

#jdbc.url=jdbc:mysql://localhost:3306/test?user=root&password=root&useUnicode=true&characterEncoding=UTF-8&characterSetResults=UTF-8

#jdbc.driverClassName=net.sourceforge.jtds.jdbc.Driver #jdbc.url=jdbc:jtds:sqlserver://localhost:1433/test;useUnicode=true&characterEncoding=GBK&characterSetResults=GBK #jdbc.username=sa #jdbc.password=sa

#jndi jndi.factory.initial=weblogic.jndi.WLInitialContextFactory jndi.provider.url=t3://127.0.0.1:7001 jndi.jndiName=jdbc/test

hibernate.properties

#hibernate.dialect=org.hibernate.dialect.SQLServerDialect hibernate.dialect=org.hibernate.dialect.MySQLInnoDBDialect #hibernate.dialect=org.hibernate.dialect.HSQLDialect hibernate.cache.use_query_cache=true #hibernate.cache.provider_class=net.sf.hibernate.cache.EhCacheProvider
hibernate.cache.provider_class=org.hibernate.cache.EhCacheProvider hibernate.show_sql=true hibernate.format_sql=false hibernate.transaction.auto_close_session=true hibernate.connection.autocommit=false hibernate.connection.isolation=2 hibernate.hbm2ddl.auto=update
hibernate.jdbc.fetch_size=50 hibernate.jdbc.batch_size=25 hibernate.default_batch_fetch_size=16 hibernate.transaction.factory_class=org.hibernate.transaction.JDBCTransactionFactory #hibernate.transaction.factory_class=net.sf.hibernate.transaction.JDBCTransactionFactory
hibernate.query.factory_class=org.hibernate.hql.classic.ClassicQueryTranslatorFactory hibernate.connection.release_mode=after_transaction hibernate.cache.region_prefix=hibernate.cache.test hibernate.default_schema=test

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