java bonecp mysql_Java中的BoneCP数据库连接池(转载)
packagecom.bonecp;importjava.sql.Connection;importjava.sql.ResultSet;importjava.sql.SQLException;importjava.sql.Statement;importcom.jolbox.bonecp.BoneCP;importcom.jolbox.bonecp.BoneCPConfig;/***@authorsxyx2008
**/publicclassExampleJDBC {publicstaticvoidmain(String[] args) {
BoneCP connectionPool=null;
Connection connection=null;try{//load the database driver (make sure this is in your classpath!)Class.forName("oracle.jdbc.driver.OracleDriver");
}catch(Exception e) {
e.printStackTrace();return;
}try{//setup the connection poolBoneCPConfig config=null;try{
config=newBoneCPConfig("bonecp-config.xml");
}catch(Exception e) {
e.printStackTrace();
}/*config.setJdbcUrl("jdbc:oracle:thin:@127.0.0.1:1521:orcl"); // jdbc url specific to your database, eg jdbc:mysql://127.0.0.1/yourdb
config.setUsername("scott");
config.setPassword("tiger");
//设置每60秒检查数据库中的空闲连接数
config.setIdleConnectionTestPeriod(60);
//设置连接空闲时间
config.setIdleMaxAge(240);
//设置每个分区中的最大连接数 30
config.setMaxConnectionsPerPartition(30);
//设置每个分区中的最小连接数 10
config.setMinConnectionsPerPartition(10);
//当连接池中的连接耗尽的时候 BoneCP一次同时获取的连接数
config.setAcquireIncrement(5);
//连接释放处理
config.setReleaseHelperThreads(3);
//设置分区 分区数为3
config.setPartitionCount(3);*///设置配置参数connectionPool=newBoneCP(config);//setup the connection poollongstartTime=System.currentTimeMillis();//创建100个连接for(inti=0; i<100; i++) {
connection=connectionPool.getConnection();//fetch a connection}longendtTime=System.currentTimeMillis();
System.out.println("-------->total seconds :"+(endtTime-startTime));if(connection!=null){
System.out.println("Connection successful!");
Statement stmt=connection.createStatement();
ResultSet rs=stmt.executeQuery("select * from emp");//do something with the connection.while(rs.next()){
System.out.println(rs.getString(1));//should print out "1"'System.out.println(rs.getString(2));//should print out "1"'}
}
connectionPool.shutdown();//shutdown connection pool.}catch(SQLException e) {
e.printStackTrace();
}finally{if(connection!=null) {try{
connection.close();
}catch(SQLException e) {
e.printStackTrace();
}
}
}
}
}