java操作FTP，采用sun.net.ftp.FtpClient
package com.gap.y;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import sun.net.TelnetInputStream;
import sun.net.TelnetOutputStream;
import sun.net.ftp.FtpClient;
public class Ftp {
private FtpClient ftpClient;
public void open(String server, String user, String password) {
ftpClient = new FtpClient();
try {
ftpClient.openServer(server);
ftpClient.login(user, password);
} catch (IOException e) {
System.out.println(e.getMessage());
e.printStackTrace();
}
}
public void close() {
try {
ftpClient.closeServer();
} catch (IOException e) {
e.printStackTrace();
}
}
public String down(String path, String remoteFile, String localFile) {
if (path.length() != 0) {
try {
ftpClient.sendServer("mkdir " + path + "");
ftpClient.cd(path);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
try {
ftpClient.binary();
} catch (IOException e) {
e.printStackTrace();
}
TelnetInputStream in = null;
try {
in = ftpClient.get(remoteFile);
OutputStream out = new FileOutputStream(localFile);
byte[] buffer = new byte[1024];
int bytesRead = -1;
while ((bytesRead = in.read(buffer)) != -1) out.write(buffer, 0, bytesRead);
out.flush(); //将缓冲的数据写入
out.close();
in.close();
} catch (Exception e1) {
e1.printStackTrace();
} finally {
}
return "1";
}
public void creat(String path){
try {
ftpClient.sendServer("MKD " + path + " \r\n");
ftpClient.readServerResponse();
} catch (IOException e1) {
e1.printStackTrace();
}
}
public void del(String path){
try {
ftpClient.sendServer("DELE " + path + " \r\n");
ftpClient.readServerResponse();
} catch (IOException e1) {
e1.printStackTrace();
}
}
public void cd(String path){
if (path.length() != 0) {
try {
ftpClient.cd(path);
} catch (IOException e) {
}
}
try {
ftpClient.binary();
} catch (IOException e) {
e.printStackTrace();
}
}
public String upload(String remoteFile, String str) {
TelnetOutputStream os = null;
InputStream is = null;
try {
os = ftpClient.put(remoteFile);
is = new java.io.ByteArrayInputStream(str.getBytes());
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
os.write(bytes, 0, c);
}
is.close();
os.flush();
os.close();
} catch (Exception e1) {
e1.printStackTrace();
} finally {
}
return "1";
}
public String getStr(InputStream in) {
try {
StringBuffer temp = null;
BufferedReader buffer = new BufferedReader(
new InputStreamReader(in));
String tempstr = "";
String strsum = "";
while ((tempstr = buffer.readLine()) != null) {
strsum = strsum + tempstr + "\r\n";
}
buffer.close();
// in.close();
return strsum;
} catch (Exception e) {
System.out.println("shit");
}
return "";
}
public String getList(String dir) {
InputStream is = null;
String s = "";
try {
is = ftpClient.nameList(dir);
s = this.getStr(is);
is.close();
} catch (Exception e1) {
e1.printStackTrace();
} finally {
}
return s;
}
public String uploadFile(String remoteFile, String str) {
TelnetOutputStream os = null;
InputStream is = null;
try {
os = ftpClient.put(remoteFile);
is = new FileInputStream(str);
byte[] bytes = new byte[102400];
int c;
while ((c = is.read(bytes)) != -1) {
os.write(bytes, 0, c);
os.flush();
}
is.close();
os.flush();
os.close();
} catch (Exception e1) {
e1.printStackTrace();
} finally {
}
return "1";
}
/**
* @param args
*/
public static void main(String[] args) {
Ftp f= new Ftp();
f.open("java-er.com","web9311185","ab1232wsx");
String rpath = "/Web9311185/wwwroot/res/0/";
String q = f.getList(rpath);
String [] m = q.split("\r\n");
for(int i = 0 ; i < m.length;i++){
if(i%10==0){
f.close();
f.open("java-er.com","web9311185","ab1232wsx");
}
f.del(m[i]);
System.out.println(m[i] + "|");
}
f.close();
System.out.println(m.length);
}
}