用Socket 传输图片出现问题了,help~~~

NewToeee 2011-07-14 04:01:56

这是服务端的代码：

import java.io.*;

import java.net.ServerSocket;

import java.net.Socket;



//一个简答的图片传输程序

public class ImageServer {



	static ServerSocket server; //服务端

	static Socket connectToClient; //至客户端的套接字连接

	static ObjectInputStream inFromClient; //连接至客户端的对象输入流

	static ObjectOutputStream outToClient; //连接至客户端的对象输出流



	public static void main(String[] args) {



		//建立连接

		try {

			server = new ServerSocket(8500);  //服务端启用端口8500

			connectToClient = server.accept(); //接受一个客户端

			inFromClient = new ObjectInputStream(connectToClient.getInputStream());   //连接输入流

			outToClient = new ObjectOutputStream(connectToClient.getOutputStream());  //连接输出流

			

			System.out.println("客户端："+connectToClient.getInetAddress().toString()+"已经连接上");

			byte []buffer = new byte[1024]; //缓冲区

			FileInputStream fin = new FileInputStream(new File("E:\\google.jpg"));  //文件输入流

			System.out.println("复制文件："+fin.available()+" 个字节");

			int length = 1;//实际读到的字节数

			System.out.println("开始发送图片...");

			while(length>0){   //读入文件到字节缓冲区并发送

				length = fin.read(buffer, 0, 1024); //从文件输入流中读出的字节数

				outToClient.write(buffer);

				outToClient.flush();

			}

			System.out.println("发送图片结束...");

			fin.close();  //关闭文件输入流

			outToClient.close();  //关闭连接资源

			inFromClient.close();

			connectToClient.close();

		} catch (IOException e) {

			e.printStackTrace();

		}



	}

}

这是客户端的代码：

import java.net.Socket;

import java.net.UnknownHostException;



//一个简单图片传输程序

public class ImageClient {

	static Socket connectToServer;//连接至服务器的套接字

	static ObjectOutputStream outToServer;  //对象输出流

	static ObjectInputStream inFromServer;  //对象输入流

	

 public static void main(String[] args) {

	 try {

		connectToServer = new Socket("172.20.128.236",8500); //连接至主机

		outToServer = new ObjectOutputStream(connectToServer.getOutputStream());  //初始化流

		inFromServer = new ObjectInputStream(connectToServer.getInputStream()); 

		

		FileOutputStream fout = new FileOutputStream(new File("D:\\google.jpg")); //输出流

		byte buffer[] = new byte[1024];   //缓冲区

		int length = 1;

		System.out.println("开始接收图片...");

		while(length>0){

			length = inFromServer.read(buffer, 0, 1024);   //读出输入流中的字节，返回实际读出的字节数

			fout.write(buffer);   //输出到文件中

		}

		System.out.println("接收图片结束...");

		fout.close();  //关闭文件输出流

		inFromServer.close();

		outToServer.close();

		connectToServer.close();

	} catch (UnknownHostException e) {

		e.printStackTrace();

	} catch (IOException e) {

		e.printStackTrace();

	}

 }

}