我嘗試在 Java 中打開(kāi) TCP 套接字并向服務(wù)器 (www.abc.net.au) 發(fā)送 GET 請(qǐng)求并將響應(yīng)打印到控制臺(tái)?？蛻?hù)端代碼：import java.util.Scanner;import java.net.InetAddress;import java.net.SocketAddress;import java.net.InetSocketAddress;import java.net.Socket;import java.io.BufferedReader;import java.io.InputStreamReader;import java.io.PrintWriter;public class Client {    public static void main(String[] args) throws Exception{        Scanner sc;        String addressString;        int port =80;        int timeoutMs = 30000;        String temp;        //Read address from commandline        sc =new Scanner(System.in);        System.out.print("Adresse: ");        addressString = sc.next();        sc.close();        //Open socket        InetAddress addr = InetAddress.getByName(addressString);        SocketAddress sockaddr = new InetSocketAddress(addr, port);        Socket socket = new Socket();        //Connection timeout        socket.connect(sockaddr,timeoutMs);        System.out.println( socket.getPort() +"\n");        //Define input/output        BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));        PrintWriter pw = new PrintWriter(socket.getOutputStream(), true);        //Send GET request        pw.print("GET / HTTP/1.1\r\n");        pw.print("Host: "+ addressString +"\r\n\r\n");        while((temp=br.readLine())!=null){            System.out.println(temp);        }        //Close Input/Output and Socket        pw.close();        br.close();        socket.close();    }}代碼似乎可以工作，直到它到達(dá)一段時(shí)間，然后我得到：HTTP/1.0 408 Request Time-outServer: AkamaiGHostMime-Version: 1.0Date: Sun, 07 Oct 2018 15:36:40 GMTContent-Type: text/htmlContent-Length: 218Expires: Sun, 07 Oct 2018 15:36:40 GMT我不明白是什么導(dǎo)致了這個(gè)問(wèn)題，已經(jīng)在 stackoverflow、java2s 和我在家里得到的一本書(shū)上尋找答案。嘗試其他頁(yè)面通常以：Process finished with exit code 0沒(méi)有別的。知道我的請(qǐng)求缺少什么/不正確嗎？欣賞每一個(gè)提示。