c3p0.driverClass=org.postgresql.Driver
c3p0.jdbcUrl=jdbc:postgresql://192.168.20.33:5432/kwtmap
c3p0.user=nwd
c3p0.password=ok123456
c3p0.minPoolSize=5
c3p0.maxPoolSize=20
c3p0.acquireIncrement=5
c3p0.initialPoolSize=5
c3p0.maxIdleTime=240
2、Java代码
package com.boonya.mongo.optimize; import java.beans.PropertyVetoException; import java.sql.Connection; import java.sql.SQLException; import com.boonya.mongo.utils.ConstantUtils; import com.mchange.v2.c3p0.ComboPooledDataSource; /** * MDBManager.java * 功能:使用C3P0连接池获取数据库连接对象 * @author boonya * @version 1.0 2013-03-07 */ public class MDBManager { private static final MDBManager instance=new MDBManager(); private static ComboPooledDataSource cpds=new ComboPooledDataSource(true); /** * 此处可以不配置,采用默认也行 */ static{ cpds.setDataSourceName("mydatasource"); cpds.setJdbcUrl(ConstantUtils.getValue("c3p0.jdbcUrl").toString()); try { cpds.setDriverClass(ConstantUtils.getValue("c3p0.driverClass").toString()); } catch (PropertyVetoException e) { e.printStackTrace(); } cpds.setUser(ConstantUtils.getValue("c3p0.user").toString()); cpds.setPassword(ConstantUtils.getValue("c3p0.password").toString()); cpds.setMaxPoolSize(Integer.valueOf(ConstantUtils.getValue("c3p0.maxPoolSize").toString())); cpds.setMinPoolSize(Integer.valueOf(ConstantUtils.getValue("c3p0.minPoolSize").toString())); cpds.setAcquireIncrement(Integer.valueOf(ConstantUtils.getValue("c3p0.acquireIncrement").toString())); cpds.setInitialPoolSize(Integer.valueOf(ConstantUtils.getValue("c3p0.initialPoolSize").toString())); cpds.setMaxIdleTime(Integer.valueOf(ConstantUtils.getValue("c3p0.maxIdleTime").toString())); } private MDBManager(){} public static MDBManager getInstance(){ return instance; } public static Connection getConnection(){ try { return cpds.getConnection(); } catch (SQLException e) { e.printStackTrace(); } return null; } }