- package com.icelove.util;
- import java.io.DataInputStream;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.io.OutputStream;
- import java.util.ArrayList;
- import java.util.List;
- import java.util.StringTokenizer;
- import sun.net.TelnetInputStream;
- import sun.net.TelnetOutputStream;
- import sun.net.ftp.FtpClient;
- /**
- * FTP上传工具类
- * @author icelove
- *
- */
- public class FtpUtil {
- private String ip = "";
- private String username = "";
- private String password = "";
- private int port = -1;
- private String path = "";
- private FtpClient ftpClient = null;
- private OutputStream os = null;
- private FileInputStream is = null;
- public FtpUtil(String serverIP, String username, String password) {
- this.ip = serverIP;
- this.username = username;
- this.password = password;
- }
- public FtpUtil(String serverIP, int port, String username, String password) {
- this.ip = serverIP;
- this.username = username;
- this.password = password;
- this.port = port;
- }
- /**
- * 连接ftp服务器
- * @throws IOException
- */
- public boolean connectServer() {
- ftpClient = new FtpClient();
- try {
- if (this.port != -1) {
- ftpClient.openServer(this.ip, this.port);
- } else {
- ftpClient.openServer(this.ip);
- }
- ftpClient.login(this.username, this.password);
- if (this.path.length() != 0) {
- ftpClient.cd(this.path);// path是ftp服务下主目录的子目录
- }
- ftpClient.binary();// 用2进制上传、下载
- System.out.println("已登录到\"" + ftpClient.pwd() + "\"目录");
- return true;
- } catch (IOException e) {
- e.printStackTrace();
- return false;
- }
- }
- /**
- * 断开与ftp服务器连接
- * @throws IOException
- */
- public boolean closeServer() {
- try {
- if (is != null) {
- is.close();
- }
- if (os != null) {
- os.close();
- }
- if (ftpClient != null) {
- ftpClient.closeServer();
- }
- System.out.println("已从服务器断开");
- return true;
- } catch (IOException e) {
- e.printStackTrace();
- return false;
- }
- }
- /**
- * 检查文件夹在当前目录下是否存在
- * @param dir
- * @return
- */
- private boolean isDirExist(String dir) {
- String pwd = "";
- try {
- pwd = ftpClient.pwd();
- ftpClient.cd(dir);
- ftpClient.cd(pwd);
- } catch (Exception e) {
- return false;
- }
- return true;
- }
- /**
- * 在当前目录下创建文件夹
- * @param dir
- * @return
- * @throws Exception
- */
- private boolean createDir(String dir) {
- try {
- ftpClient.ascii();
- StringTokenizer s = new StringTokenizer(dir, "/"); //sign
- s.countTokens();
- String pathName = ftpClient.pwd();
- while (s.hasMoreElements()) {
- pathName = pathName + "/" + (String) s.nextElement();
- try {
- ftpClient.sendServer("MKD " + pathName + "\r\n");
- } catch (Exception e) {
- e = null;
- return false;
- }
- ftpClient.readServerResponse();
- }
- ftpClient.binary();
- return true;
- } catch (IOException e1) {
- e1.printStackTrace();
- return false;
- }
- }
- /**
- * ftp上传
- * 如果服务器段已存在名为filename的文件夹,该文件夹中与要上传的文件夹中同名的文件将被替换
- *
- * @param filename 要上传的文件(或文件夹)名
- * @return
- * @throws Exception
- */
- public boolean upload(String filename) {
- String newname = "";
- if (filename.indexOf("/") > -1) {
- newname = filename.substring(filename.lastIndexOf("/") + 1);
- } else {
- newname = filename;
- }
- return upload(filename, newname);
- }
- /**
- * ftp上传
- * 如果服务器段已存在名为newName的文件夹,该文件夹中与要上传的文件夹中同名的文件将被替换
- *
- * @param fileName 要上传的文件(或文件夹)名
- * @param newName 服务器段要生成的文件(或文件夹)名
- * @return
- */
- public boolean upload(String fileName, String newName) {
- try {
- String savefilename = new String(fileName.getBytes("ISO-8859-1"), "GBK");
- File file_in = new File(savefilename);//打开本地待长传的文件
- if (!file_in.exists()) {
- throw new Exception("此文件或文件夹[" + file_in.getName() + "]有误或不存在!");
- }
- if (file_in.isDirectory()) {
- upload(file_in.getPath(), newName, ftpClient.pwd());
- } else {
- uploadFile(file_in.getPath(), newName);
- }
- if (is != null) {
- is.close();
- }
- if (os != null) {
- os.close();
- }
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- System.err.println("Exception e in Ftp upload(): " + e.toString());
- return false;
- } finally {
- try {
- if (is != null) {
- is.close();
- }
- if (os != null) {
- os.close();
- }
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- }
- /**
- * 真正用于上传的方法
- * @param fileName
- * @param newName
- * @param path
- * @throws Exception
- */
- private void upload(String fileName, String newName, String path) throws Exception {
- String savefilename = new String(fileName.getBytes("ISO-8859-1"), "GBK");
- File file_in = new File(savefilename);//打开本地待长传的文件
- if (!file_in.exists()) {
- throw new Exception("此文件或文件夹[" + file_in.getName() + "]有误或不存在!");
- }
- if (file_in.isDirectory()) {
- if (!isDirExist(newName)) {
- createDir(newName);
- }
- ftpClient.cd(newName);
- File sourceFile[] = file_in.listFiles();
- for (int i = 0; i < sourceFile.length; i++) {
- if (!sourceFile[i].exists()) {
- continue;
- }
- if (sourceFile[i].isDirectory()) {
- this.upload(sourceFile[i].getPath(), sourceFile[i].getName(), path + "/" + newName);
- } else {
- this.uploadFile(sourceFile[i].getPath(), sourceFile[i].getName());
- }
- }
- } else {
- uploadFile(file_in.getPath(), newName);
- }
- ftpClient.cd(path);
- }
- /**
- * upload 上传文件
- *
- * @param filename 要上传的文件名
- * @param newname 上传后的新文件名
- * @return -1 文件不存在 >=0 成功上传,返回文件的大小
- * @throws Exception
- */
- public long uploadFile(String filename, String newname) throws Exception {
- long result = 0;
- TelnetOutputStream os = null;
- FileInputStream is = null;
- try {
- java.io.File file_in = new java.io.File(filename);
- if (!file_in.exists())
- return -1;
- os = ftpClient.put(newname);
- result = file_in.length();
- is = new FileInputStream(file_in);
- byte[] bytes = new byte[1024];
- int c;
- while ((c = is.read(bytes)) != -1) {
- os.write(bytes, 0, c);
- }
- } finally {
- if (is != null) {
- is.close();
- }
- if (os != null) {
- os.close();
- }
- }
- return result;
- }
- /**
- * 从ftp下载文件到本地
- *
- * @param filename 服务器上的文件名
- * @param newfilename 本地生成的文件名
- * @return
- * @throws Exception
- */
- public long downloadFile(String filename, String newfilename) {
- long result = 0;
- TelnetInputStream is = null;
- FileOutputStream os = null;
- try {
- is = ftpClient.get(filename);
- java.io.File outfile = new java.io.File(newfilename);
- os = new FileOutputStream(outfile);
- byte[] bytes = new byte[1024];
- int c;
- while ((c = is.read(bytes)) != -1) {
- os.write(bytes, 0, c);
- result = result + c;
- }
- } catch (IOException e) {
- e.printStackTrace();
- } finally {
- try {
- if (is != null) {
- is.close();
- }
- if (os != null) {
- os.close();
- }
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- return result;
- }
- /**
- * 取得相对于当前连接目录的某个目录下所有文件列表
- *
- * @param path
- * @return
- */
- public List getFileList(String path) {
- List list = new ArrayList();
- DataInputStream dis;
- try {
- dis = new DataInputStream(ftpClient.nameList(this.path + path));
- String filename = "";
- while ((filename = dis.readLine()) != null) {
- list.add(filename);
- }
- } catch (IOException e) {
- e.printStackTrace();
- }
- return list;
- }
- public static void main(String[] args) {
- FtpUtil ftp = new FtpUtil("133.224.202.2", "tstbill", "tstbill");
- ftp.connectServer();
- boolean result = ftp.upload("C:/test_why", "test_why/test");
- System.out.println(result ? "上传成功!" : "上传失败!");
- List list = ftp.getFileList("test_why/test");
- for (int i = 0; i < list.size(); i++) {
- String name = list.get(i).toString();
- System.out.println(name);
- }
- ftp.closeServer();
- /**
- FTP远程命令列表
- USER PORT RETR ALLO DELE SITE XMKD CDUP FEAT
- PASS PASV STOR REST CWD STAT RMD XCUP OPTS
- ACCT TYPE APPE RNFR XCWD HELP XRMD STOU AUTH
- REIN STRU SMNT RNTO LIST NOOP PWD SIZE PBSZ
- QUIT MODE SYST ABOR NLST MKD XPWD MDTM PROT
- 在服务器上执行命令,如果用sendServer来执行远程命令(不能执行本地FTP命令)的话,所有FTP命令都要加上\r\n
- ftpclient.sendServer("XMKD /test/bb\r\n"); //执行服务器上的FTP命令
- ftpclient.readServerResponse一定要在sendServer后调用
- nameList("/test")获取指目录下的文件列表
- XMKD建立目录,当目录存在的情况下再次创建目录时报错
- XRMD删除目录
- DELE删除文件
- */
- }
- }
来源: http://www.phpxs.com/code/1001536/