有两台电脑，我想把一台电脑上的文件拷到另一台上，当中的传输协议要基于HTTP的，谁能给点提示或者示例

httpServer + httpClient 下面是个简单的示例

在这个基础上改改。

Java code

package com.fzr.learn;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class EchoService {

    private int port = 8999;

    private ServerSocket serverSocket;

    public EchoService() throws IOException {

        serverSocket = new ServerSocket(port);// 创建tcp服务对象
        System.out.println("服务启动");

    }

    public String echo(String message) {
        return "echo : " + message;
    }

    private PrintWriter getWriter(Socket socket) throws IOException {
        OutputStream socketOut = socket.getOutputStream();
        return new PrintWriter(socketOut, true);
    }

    private BufferedReader getReader(Socket socket) throws IOException {
        InputStream socketIn = socket.getInputStream();
        return new BufferedReader(new InputStreamReader(socketIn));
    }

    public void service() {
        while (true) {
            Socket socket = null;
            System.out.println("11");
            try {
                socket = serverSocket.accept();
                System.out.println("new connection accepted "
                        + socket.getInetAddress() + ":" + socket.getPort());
                System.out.println(socket);
                BufferedReader br = getReader(socket);
                PrintWriter pw = getWriter(socket);
                String message = null;
                System.out.println("22");
                while((message=br.readLine())!=null){
                    System.out.println("33");
                    System.out.println(message);
                    pw.println(echo(message));
                    if(message.equals("bye")){
                        break;
                    }
                }
            } catch (IOException e) {
                e.printStackTrace();
            }finally{
                    try {
                        if(socket!=null){
                            socket.close();
                        }
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
            }

        }
    }
    
    public static void main(String[] args) throws IOException {
        new EchoService().service();
        System.out.println("aa");
    }
    
}


Java code
package com.fzr.learn;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

public class EchoClient {

    private String host = "localhost";
    private int port = 8999;
    
    private Socket socket ;
    
    public EchoClient () throws UnknownHostException, IOException{
        socket = new Socket (host,port);
        
    }
    
    private PrintWriter getWriter(Socket socket) throws IOException {
        OutputStream socketOut = socket.getOutputStream();
        return new PrintWriter(socketOut, true);
    }
    
    private BufferedReader getReader(Socket socket) throws IOException {
        InputStream socketIn = socket.getInputStream();
        return new BufferedReader(new InputStreamReader(socketIn));
    }
    
    public void talk(){
        try {
            BufferedReader br = getReader(socket);
            PrintWriter pw = getWriter(socket);
            BufferedReader localReader = new BufferedReader(new InputStreamReader(System.in));
            String message =null ;
            while((message=localReader.readLine())!=null){
                pw.println(message);
                System.out.println(br.readLine());
                if(message.equals("bye")){
                    break;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }finally{
            try {
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        
    }
    
    public static void main(String[] args) throws UnknownHostException, IOException {
        new EchoClient().talk();
    }
    
    
    
}





楼上的，你是通过TCP传输的。。。。


有啊。以下代码是用HttpClient去Get一个你要下载的文件：http://www.mysite.com/download.tar.gz
Java code
public class MyHttpClientGetFile {
    public static String url =
              "http://www.mysite.com/download.tar.gz";

    public static void main(String[] args){

        //创建HttpClient
        HttpClient httpClient = new HttpClient();

        //创建 method instance
        GetMethod getMethod = new GetMethod(url);

        try{

          //执行Get方法
          int statusCode =
                 httpClient.executeMethod(getMethod);

          //读取响应。
          InputStream in =
                 getMethod.getResponseBodyAsStream();

          byte[] b = new byte[1024];//1K缓冲区读
          int len;

          while ((len = in.read(b)) != -1) {
            //将数据写到。。。。 System.out
            //你可改为：存到文件中。
            for(int i = 0; i < len; i++){
                 System.out.print((char)b[i]);
            }
          }

          in.close();

         }catch(HttpException e1){
           //System.out.println(e1);
         }catch(IOException e2){
           //System.out.println(e2);
         }finally{
           //释放连接
           getMethod.releaseConnection();
         }

    }

}


非常谢谢，你这个是下载，我想要的是上传的。
需求是这样的：客户端选择本地文件，然后点击上传。当然中间是通过HTTP上传


转自：http://bbs.csdn.net/topics/310108970