聚合支付-ftp下载功能
package com.zhsoft.rightPay.acq.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPClientConfig;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;
import org.apache.log4j.Logger;
public class FtpUtil {
private static Logger logger = Logger.getLogger(FtpUtil.class);
private static FTPClient ftp;
/**
* 获取ftp连接
*
* @param f
* @return
* @throws Exception
*/
public static boolean connectFtp() throws Exception {
String host="file.ipaynow.cn";
int port=22;
String user="00000000155";
String password="zipfapdslafoW3z2";
String romotePath="/agentbusi";
ftp = new FTPClient();
boolean flag = false;
int reply;
ftp.connect(host, port);
ftp.login(user, password);
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
//设置linux环境
FTPClientConfig conf = new FTPClientConfig( FTPClientConfig.SYST_UNIX);
ftp.configure(conf);
//判断是否连接成功
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return flag;
}
ftp.changeWorkingDirectory(romotePath);
flag = true;
return flag;
}
/**
* 关闭ftp连接
*/
public static void closeFtp() {
if (ftp != null && ftp.isConnected()) {
try {
ftp.logout();
ftp.disconnect();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* ftp上传文件
*
* @param f
* @throws Exception
*/
public static void upload(File f) throws Exception {
if (FtpUtil.connectFtp()) {
if (f.isDirectory()) {
ftp.makeDirectory(f.getName());
ftp.changeWorkingDirectory(f.getName());
String[] files = f.list();
for (String fstr : files) {
File file1 = new File(f.getPath() + "/" + fstr);
if (file1.isDirectory()) {
upload(file1);
ftp.changeToParentDirectory();
} else {
File file2 = new File(f.getPath() + "/" + fstr);
FileInputStream input = new FileInputStream(file2);
ftp.storeFile(file2.getName(), input);
input.close();
}
}
} else {
FileInputStream input = new FileInputStream(f);
ftp.storeFile(f.getName(), input);
input.close();
closeFtp();
}
}
}
/**
* 下载链接配置
*
*
* @param localBaseDir
* 本地目录
* @param remoteBaseDir
* 远程目录
* @throws Exception
*/
public static void startDown( String localBaseDir, String remoteBaseDir) throws Exception {
if (FtpUtil.connectFtp()) {
try {
// 设置访问被动模式 这个参数允许启用/禁用远程主机连接验证
ftp.setRemoteVerificationEnabled(false);
//每次数据连接之前，ftp client告诉ftp server开通一个端口来传输数据
ftp.enterLocalPassiveMode();
boolean dir = ftp.changeWorkingDirectory(remoteBaseDir);
if (dir) {
FTPFile[] files = null;
ftp.setControlEncoding("GBK");
files = ftp.listFiles();
for (int i = 0; i < files.length; i++) {
try {
downloadFile(files[i], localBaseDir, remoteBaseDir);
} catch (Exception e) {
logger.error(e);
logger.error("<" + files[i].getName() + ">下载失败");
}
}
} }catch (Exception e) {
logger.error("下载过程中出现异常",e);
}
} else {
logger.error("链接失败！");
}
}
/**
*
* 下载FTP文件 当你需要下载FTP文件的时候，调用此方法 根据获取的文件名，本地地址，远程地址进行下载
*
* @param ftpFile
* @param relativeLocalPath
* @param relativeRemotePath
*/
private static void downloadFile(FTPFile ftpFile, String relativeLocalPath, String relativeRemotePath) {
System.out.println("下载文件");
if (ftpFile.isFile()) {
if (ftpFile.getName().indexOf("?") == -1) {
OutputStream outputStream = null;
try {
File locaFile = new File(relativeLocalPath + ftpFile.getName());
// 判断文件是否存在，存在则返回
if (locaFile.exists()) {
return;
} else {
outputStream = new FileOutputStream(relativeLocalPath + ftpFile.getName());
ftp.retrieveFile(ftpFile.getName(), outputStream);
outputStream.flush();
outputStream.close();
}
} catch (Exception e) {
logger.error(e);
} finally {
try {
if (outputStream != null) {
outputStream.close();
}
} catch (IOException e) {
logger.error("输出文件流异常");
}
}
}
} else {
String newlocalRelatePath = relativeLocalPath + ftpFile.getName();
String newRemote = new String(relativeRemotePath + ftpFile.getName().toString());
File fl = new File(newlocalRelatePath);
if (!fl.exists()) {
fl.mkdirs();
}
try {
newlocalRelatePath = newlocalRelatePath + '/';
newRemote = newRemote + "/";
String currentWorkDir = ftpFile.getName().toString();
boolean changedir = ftp.changeWorkingDirectory(currentWorkDir);
if (changedir) {
FTPFile[] files = null;
files = ftp.listFiles();
for (int i = 0; i < files.length; i++) {
downloadFile(files[i], newlocalRelatePath, newRemote);
}
}
if (changedir) {
ftp.changeToParentDirectory();
}
} catch (Exception e) {
logger.error(e);
}
}
}
public static void main(String[] args) throws Exception {
File file = new File("E:\\OracleJdbcDemo.java");
System.out.println(file.getPath());
FtpUtil.upload(file);// 把文件上传在ftp上
FtpUtil.startDown(f, "E:/", "/agentbusi");// 下载ftp文件测试
}
}
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作者：有梦想的菜菜
来源：CSDN
原文：https://blog.csdn.net/forever_yours/article/details/78605205
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