Socket编程—Socket类-蒲公英云

Socket编程—Socket类

建立客户端程序，访问网址http://www.ytu.edu.cn,返回网页的首页，写入文件ytu.html

//ReadClient.java
import java.io.*;
import java.net.*;
public class ReadClient
{
    public static void main(String args[]) {
        try {
            // 初始化Socket对象
            //建立到http://www.ytu.edu.cn且端口号为80的Socket连接
            Socket clientSocket = new Socket("www.ytu.edu.cn", 80);
            System.out.println("Client1: " + clientSocket);
            //初始化流对象
            DataOutputStream outbound = new DataOutputStream(clientSocket.getOutputStream());//输出流
            DataInputStream inbound = new DataInputStream(clientSocket.getInputStream());//输入流
            InputStreamReader inS = new InputStreamReader(inbound);    
            File f = new File("ytu.html");
            FileOutputStream fOut = new FileOutputStream(f);
            PrintStream p = new PrintStream(fOut);
            //发送请求
            outbound.writeBytes("GET/ HTTP/1.0\r\n\r\n");
            //返回数据后，循环写入文件
            int c;
            while ((c = inS.read()) != -1)
                p.print((char) c);
            //关闭流
            inS.close();
            outbound.close();
            inbound.close();
            clientSocket.close();
        } catch (UnknownHostException uhe) {
            System.out.println("UnknownHostException: " + uhe);
        } catch (IOException ioe) {
            System.err.println("IOException: " + ioe);
        }
    }
}