c3p0配置xml

c3p0-config.xml

<c3p0-config> 
<default-config> 
<property name="automaticTestTable">con_test</property> 
<property name="checkoutTimeout">30000</property> 
<property name="idleConnectionTestPeriod">30</property> 
<property name="initialPoolSize">10</property> 
<property name="maxIdleTime">30</property> 
<property name="maxPoolSize">100</property> 
<property name="minPoolSize">10</property> 
<property name="maxStatements">200</property> 
<user-overrides user="test-user"> 
<property name="maxPoolSize">10</property> 
<property name="minPoolSize">1</property> 
<property name="maxStatements">0</property> 
</user-overrides> 
</default-config> 
<!-- This app is massive! --> 
<named-config name="intergalactoApp"> 
<property name="acquireIncrement">50</property> 
<property name="initialPoolSize">100</property> 
<property name="minPoolSize">50</property> 
<property name="maxPoolSize">1000</property> 
<!-- intergalactoApp adopts a different approach to configuring statement caching --> 
<property name="maxStatements">0</property> 
<property name="maxStatementsPerConnection">5</property> 
<!-- he's important, but there's only one of him --> 
<user-overrides user="master-of-the-universe"> 
<property name="acquireIncrement">1</property> 
<property name="initialPoolSize">1</property> 
<property name="minPoolSize">1</property> 
<property name="maxPoolSize">5</property> 
<property name="maxStatementsPerConnection">50</property> 
</user-overrides> 
</named-config> 
</c3p0-config>

using ComboPooledDataSource: ComboPooledDataSource cpds = new ComboPooledDataSource("intergalactoApp"); 

using the DataSources factory class: DataSource ds_pooled = DataSources.pooledDataSource( ds_unpooled, "intergalactoApp" );