ftp连接池基于common-net 和 common-pool2

	<!-- ftpclient -->
       <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
            <version>3.6</version>
	</dependency>
		
	<dependency>
	    <groupId>org.apache.commons</groupId>
	    <artifactId>commons-pool2</artifactId>
	    <version>2.4.2</version>
	</dependency>

public static void main(String[] args) throws Exception {
		FTPPoolConfig config = new FTPPoolConfig() ;
		config.setHost("192.168.1.20");
		config.setPort(21);
		config.setUsername("elen");
		config.setPassword("Elen@123");
		config.setPassiveMode("true");
		config.setClientTimeout(300000);
		config.setTransferFileType(2);
		//config.setMaxTotal(10);
		config.setMaxIdle(5);
		config.setMinIdle(1);
		config.setTestOnBorrow(true);
		config.setTestOnReturn(true);
		config.setTestWhileIdle(true);
		config.setNumTestsPerEvictionRun(10);
		config.setTimeBetweenEvictionRunsMillis(60000);
		
		FTPClientFactory f = new FTPClientFactory() ;
		f.setConfig(config);
	    final FTPPool pool = new FTPPool(config, f) ;
		for(int i = 20 ;i>0 ; i--){
			Thread t = new Thread(new Runnable() {
				
				@Override
				public void run() {
				   
					try {
						FTPClient ftp = pool.getPool().borrowObject() ;
						 System.out.println(Thread.currentThread().getName()+"--获得一个");
						Thread.sleep(60000);
						pool.getPool().returnObject(ftp);
						 System.out.println(Thread.currentThread().getName()+"取消一个");
					} catch (Exception e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
					
				}
			},"name--"+i) ;
			t.start();
		}
	   
		
		System.out.println("执行完毕");
		
		Thread.sleep(60000*20);
	
		
	}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd"
	default-autowire="byName">
	<bean id="ftpConfig" class="com.hatchsolution.ftp.pool.FTPPoolConfig" >
		<property name="host" value="192.168.1.20"/>
		<property name="port" value="21"/>
		<property name="username" value="elen"/>
		<property name="password" value="Elen@123"/>
		<property name="passiveMode" value="true"/>
		<property name="clientTimeout" value="300000"/>
		<property name="transferFileType" value="2"/>
		<property name="maxTotal" value="10"/>
		<property name="maxIdle" value="5"/>
		<property name="minIdle" value="2"/>
		<property name="testOnBorrow" value="true"/>
		<property name="testOnReturn" value="true"/>
		<property name="testWhileIdle" value="true"/>
		<property name="numTestsPerEvictionRun" value="10"/>
		<property name="timeBetweenEvictionRunsMillis" value="60000"/>
	</bean>	
	 
	<bean id="ftpClientFactory" class="com.hatchsolution.ftp.factory.FTPClientFactory" >
		<constructor-arg name="config" ref="ftpConfig"></constructor-arg>
	</bean>
	
	<bean id = "ftpPool" class="com.hatchsolution.ftp.pool.impl.FTPPool" scope="singleton">
		<constructor-arg name="factory" ref="ftpClientFactory"></constructor-arg>	
		
	</bean>
	
	<bean id = "ftpUtils" class="com.hatchsolution.ftp.FTPUtils" scope="singleton">
		<property name="pools" ref="ftpPool"/>
	</bean>
	
	
	
	
	
	
</beans>