Java实现FTP服务器的下传、上载、删除、查看文件列表
package com.zhangjun.ftp;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.io.IOUtils;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;
/**
* <p>
* ftp连接管理(使用apache commons-net-1.4.1 lib)
* </p>
*/
public class FtpClientUtil {
private FTPClient ftpClient = null;
private String server;
private int port;
private String userName;
private String userPassword;
public static void main(String[] args) {
// 调用FTP传输g
// FtpClientUtil f = new FtpClientUtil("10.50.20.8", 21, "suzy",
// "123456");
// FtpClientUtil f = new FtpClientUtil("10.7.4.56",21,"root","wonder");
FtpClientUtil f = new FtpClientUtil("10.3.128.178", 21, "lujf", "lu517jf");
// FtpClientUtil f = new
// FtpClientUtil("10.50.20.213",21,"Administrator","administrator");
try {
if (f.open()) {
// f.getFtpClient().sendServer("quote PASV");
// f.getFtpClient().sendServer("quote PORT");
// f.mkDir("put2/5/6\\8\\9");
// f.mkDir("test6\\7/8/9");
// f.mkDir("test6/7/8/9");
// f.mkDir("test7");
// f.put("d:/1.txt", "中国.txt", "put3/测试/6\\8\\9");// 远程路径为相对路径
f.get("/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/qunarlog.txt", "E:/111111111.txt");// 远程路径为相对路径
f.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
public FtpClientUtil(String server, int port, String userName,
String userPassword) {
this.server = server;
this.port = port;
this.userName = userName;
this.userPassword = userPassword;
}
/**
* 链接到服务器
*
* @return
* @throws Exception
*/
public boolean open() {
if (ftpClient != null && ftpClient.isConnected()) {
return true;
}
try {
ftpClient = new FTPClient();
// 连接
ftpClient.connect(this.server, this.port);
ftpClient.login(this.userName, this.userPassword);
// 检测连接是否成功
int reply = ftpClient.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
this.close();
System.err.println("FTP server refused connection.");
System.exit(1);
}
System.out.println("open FTP success:" + this.server+";port:"+this.port + ";name:"
+ this.userName + ";pwd:" + this.userPassword);
ftpClient.setFileType(ftpClient.BINARY_FILE_TYPE); // 设置上传模式.binally
// or ascii
return true;
} catch (Exception ex) {
// 关闭
this.close();
ex.printStackTrace();
return false;
}
}
private boolean cd(String dir) throws IOException {
if (ftpClient.changeWorkingDirectory(dir)) {
return true;
} else {
return false;
}
}
/**
* 获取目录下所有的文件名称
*
* @param filePath
* @return
* @throws IOException
*/
private FTPFile[] getFileList(String filePath) throws IOException {
FTPFile[] list = ftpClient.listFiles();
return list;
}
/**
* 循环将设置工作目录
*/
public boolean changeDir(String ftpPath) {
if (!ftpClient.isConnected()) {
return false;
}
try {
// 将路径中的斜杠统一
char[] chars = ftpPath.toCharArray();
StringBuffer sbStr = new StringBuffer(256);
for (int i = 0; i < chars.length; i++) {
if ('\\' == chars[i]) {
sbStr.append('/');
} else {
sbStr.append(chars[i]);
}
}
ftpPath = sbStr.toString();
// System.out.println("ftpPath"+ftpPath);
if (ftpPath.indexOf('/') == -1) {
// 只有一层目录
// System.out.println("change"+ftpPath);
ftpClient.changeWorkingDirectory(new String(ftpPath.getBytes(),
"iso-8859-1"));
} else {
// 多层目录循环创建
String[] paths = ftpPath.split("/");
// String pathTemp = "";
for (int i = 0; i < paths.length; i++) {
// System.out.println("change "+paths[i]);
ftpClient.changeWorkingDirectory(new String(paths[i]
.getBytes(), "iso-8859-1"));
}
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 循环创建目录，并且创建完目录后，设置工作目录为当前创建的目录下
*/
public boolean mkDir(String ftpPath) {
if (!ftpClient.isConnected()) {
return false;
}
try {
// 将路径中的斜杠统一
char[] chars = ftpPath.toCharArray();
StringBuffer sbStr = new StringBuffer(256);
for (int i = 0; i < chars.length; i++) {
if ('\\' == chars[i]) {
sbStr.append('/');
} else {
sbStr.append(chars[i]);
}
}
ftpPath = sbStr.toString();
System.out.println("ftpPath" + ftpPath);
if (ftpPath.indexOf('/') == -1) {
// 只有一层目录
ftpClient.makeDirectory(new String(ftpPath.getBytes(),
"iso-8859-1"));
ftpClient.changeWorkingDirectory(new String(ftpPath.getBytes(),
"iso-8859-1"));
} else {
// 多层目录循环创建
String[] paths = ftpPath.split("/");
// String pathTemp = "";
for (int i = 0; i < paths.length; i++) {
ftpClient.makeDirectory(new String(paths[i].getBytes(),
"iso-8859-1"));
ftpClient.changeWorkingDirectory(new String(paths[i]
.getBytes(), "iso-8859-1"));
}
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 上传文件到FTP服务器
*
* @param localPathAndFileName
* 本地文件目录和文件名
* @param ftpFileName
* 上传后的文件名
* @param ftpDirectory
* FTP目录如:/path1/pathb2/,如果目录不存在回自动创建目录
* @throws Exception
*/
public boolean put(String localDirectoryAndFileName, String ftpFileName,
String ftpDirectory) {
if (!ftpClient.isConnected()) {
return false;
}
boolean flag = false;
if (ftpClient != null) {
File srcFile = new File(localDirectoryAndFileName);
FileInputStream fis = null;
try {
fis = new FileInputStream(srcFile);
// 创建目录
this.mkDir(ftpDirectory);
ftpClient.setBufferSize(1024);
ftpClient.setControlEncoding("UTF-8");
// 设置文件类型（二进制）
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
// 上传
flag = ftpClient.storeFile(new String(ftpFileName.getBytes(),
"iso-8859-1"), fis);
} catch (Exception e) {
this.close();
e.printStackTrace();
return false;
} finally {
IOUtils.closeQuietly(fis);
}
}
System.out.println("success put file " + localDirectoryAndFileName
+ " to " + ftpDirectory + ftpFileName);
return flag;
}
/**
* 从FTP服务器上下载文件并返回下载文件长度
*
* @param ftpDirectoryAndFileName
* @param localDirectoryAndFileName
* @return
* @throws Exception
*/
public long get(String ftpDirectoryAndFileName,
String localDirectoryAndFileName) {
long result = 0;
if (!ftpClient.isConnected()) {
return 0;
}
ftpClient.enterLocalPassiveMode(); // Use passive mode as default
// because most of us are behind
// firewalls these days.
try {
// 将路径中的斜杠统一
char[] chars = ftpDirectoryAndFileName.toCharArray();
StringBuffer sbStr = new StringBuffer(256);
for (int i = 0; i < chars.length; i++) {
if ('\\' == chars[i]) {
sbStr.append('/');
} else {
sbStr.append(chars[i]);
}
}
ftpDirectoryAndFileName = sbStr.toString();
String filePath = ftpDirectoryAndFileName.substring(0,
ftpDirectoryAndFileName.lastIndexOf("/"));
String fileName = ftpDirectoryAndFileName
.substring(ftpDirectoryAndFileName.lastIndexOf("/") + 1);
// System.out.println("filePath | "+filePath);
// System.out.println("fileName | "+fileName);
this.changeDir(filePath);
ftpClient.retrieveFile( new String(fileName.getBytes(), "iso-8859-1"), new FileOutputStream(localDirectoryAndFileName)); // download
// file
System.out.print(ftpClient.getReplyString()); // check result
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("Success get file" + ftpDirectoryAndFileName
+ " from " + localDirectoryAndFileName);
return result;
}
/**
* 返回FTP目录下的文件列表
*
* @param ftpDirectory
* @return
*/
public List getFileNameList(String ftpDirectory) {
List list = new ArrayList();
// if (!open())
// return list;
// try {
// DataInputStream dis = new DataInputStream(ftpClient
// .nameList(ftpDirectory));
// String filename = "";
// while ((filename = dis.readLine()) != null) {
// list.add(filename);
// }
// } catch (Exception e) {
// e.printStackTrace();
// }
return list;
}
/**
* 删除FTP上的文件
*
* @param ftpDirAndFileName
*/
public boolean deleteFile(String ftpDirAndFileName) {
if (!ftpClient.isConnected()) {
return false;
}
//Todo
return true;
}
/**
* 删除FTP目录
*
* @param ftpDirectory
*/
public boolean deleteDirectory(String ftpDirectory) {
if (!ftpClient.isConnected()) {
return false;
}
//ToDo
return true;
}
/**
* 关闭链接
*/
public void close() {
try {
if (ftpClient != null && ftpClient.isConnected())
ftpClient.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("Close Server Success :"+this.server+";port:"+this.port);
}
public FTPClient getFtpClient() {
return ftpClient;
}
public void setFtpClient(FTPClient ftpClient) {
this.ftpClient = ftpClient;
}
}