FTPClientFactory.java
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package com.viontech.ftp;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
import org.apache.commons.pool2.BasePooledObjectFactory;
import org.apache.commons.pool2.PooledObject;
import org.apache.commons.pool2.impl.DefaultPooledObject;
import java.io.IOException;
/**
* ftpclient 工厂
*/
@Slf4j
public class FTPClientFactory extends BasePooledObjectFactory<FTPClient> {
private FtpPoolConfig ftpPoolConfig;
public FtpPoolConfig getFtpPoolConfig() {
return ftpPoolConfig;
}
public void setFtpPoolConfig(FtpPoolConfig ftpPoolConfig) {
this.ftpPoolConfig = ftpPoolConfig;
}
/**
* 新建对象
*/
@Override
public FTPClient create() throws Exception {
FTPClient ftpClient = new FTPClient();
ftpClient.setConnectTimeout(ftpPoolConfig.getConnectTimeOut());
try {
log.info("连接ftp服务器:" + ftpPoolConfig.getHost() + ":" + ftpPoolConfig.getPort());
ftpClient.connect(ftpPoolConfig.getHost(), ftpPoolConfig.getPort());
int reply = ftpClient.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftpClient.disconnect();
log.error("FTPServer 拒绝连接");
return null;
}
boolean result = ftpClient.login(ftpPoolConfig.getUsername(), ftpPoolConfig.getPassword());
if (!result) {
throw new Exception("ftpClient登录失败! userName:" + ftpPoolConfig.getUsername() + ", password:"
+ ftpPoolConfig.getPassword());
}
ftpClient.setControlEncoding(ftpPoolConfig.getControlEncoding());
ftpClient.setBufferSize(ftpPoolConfig.getBufferSize());
ftpClient.setFileType(ftpPoolConfig.getFileType());
ftpClient.setDataTimeout(ftpPoolConfig.getDataTimeout());
if (ftpPoolConfig.isPassiveMode()) {
log.info("进入ftp被动模式");
ftpClient.enterLocalPassiveMode();//进入被动模式
}
} catch (IOException e) {
log.error("FTP连接失败：", e);
}
return ftpClient;
}
@Override
public PooledObject<FTPClient> wrap(FTPClient ftpClient) {
return new DefaultPooledObject<FTPClient>(ftpClient);
}
/**
* 销毁对象
*/
@Override
public void destroyObject(PooledObject<FTPClient> p) throws Exception {
FTPClient ftpClient = p.getObject();
try {
if (ftpClient != null && ftpClient.isConnected()) {
ftpClient.logout();
}
} catch (IOException io) {
io.printStackTrace();
} finally {
// 注意,一定要在finally代码中断开连接，否则会导致占用ftp连接情况
try {
ftpClient.disconnect();
} catch (IOException io) {
io.printStackTrace();
}
}
}
/**
* 验证对象
*/
@Override
public boolean validateObject(PooledObject<FTPClient> p) {
FTPClient ftpClient = p.getObject();
boolean connect = false;
try {
connect = ftpClient.sendNoOp();
} catch (IOException e) {
e.printStackTrace();
}
return connect;
}
/**
* No-op.
*
* @param p ignored
*/
@Override
public void activateObject(PooledObject<FTPClient> p) throws Exception {
FTPClient ftpClient = p.getObject();
if (!validateObject(p)) {
ftpClient.reinitialize();
}
if (!validateObject(p)) {
throw new RuntimeException("ftp已经失效");
}
}
/**
* No-op.
*
* @param p ignored
*/
@Override
public void passivateObject(PooledObject<FTPClient> p) throws Exception {
}
}