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为什么我的java scoket监听80端口收不到返回的html
packagecom.leejuen.net;importjava.io.BufferedReader;importjava.io.IOException;importj...
package com.leejuen.net;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.InetSocketAddress;
import java.net.MalformedURLException;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.URL;
import java.util.Scanner;
import javax.sound.sampled.Port;
public class HttpClient {
public static void main(String[] args) throws IOException
{
Scanner sin=new Scanner(System.in);
//从控制台上输入url地址
URL url=new URL(sin.nextLine());
//获取端口号
int port=(url.getPort()==-1)?url.getDefaultPort():url.getPort();
//获取主机名
String host=url.getHost();
//建立socket链接
Socket client=new Socket();
SocketAddress address = new InetSocketAddress(host, port);
client.connect(address);
//通过以上的信息建立一个HTTP请求。这里将其封装成request对象
HttpRequest request=new HttpRequest();
request.setHostHeader(host);
request.setRequestStr(url.getFile());
PrintStream out=new PrintStream(client.getOutputStream());
out.print(request.getHttpInfo());
BufferedReader buf = new BufferedReader(new InputStreamReader(client.getInputStream()));
if(buf.ready()==false) System.out.println("流为空");
while(buf.ready())
{
System.out.println("正在输出");
String line=buf.readLine();
System.out.println(line);
}
client.close();
out.flush();
}
}
例如输入
http://www.baidu.com
会得到的Http请求是这个。但是收不回信息不知道是为什么
GET HTTP/1.1
HOST www.baidu.com 展开
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.InetSocketAddress;
import java.net.MalformedURLException;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.URL;
import java.util.Scanner;
import javax.sound.sampled.Port;
public class HttpClient {
public static void main(String[] args) throws IOException
{
Scanner sin=new Scanner(System.in);
//从控制台上输入url地址
URL url=new URL(sin.nextLine());
//获取端口号
int port=(url.getPort()==-1)?url.getDefaultPort():url.getPort();
//获取主机名
String host=url.getHost();
//建立socket链接
Socket client=new Socket();
SocketAddress address = new InetSocketAddress(host, port);
client.connect(address);
//通过以上的信息建立一个HTTP请求。这里将其封装成request对象
HttpRequest request=new HttpRequest();
request.setHostHeader(host);
request.setRequestStr(url.getFile());
PrintStream out=new PrintStream(client.getOutputStream());
out.print(request.getHttpInfo());
BufferedReader buf = new BufferedReader(new InputStreamReader(client.getInputStream()));
if(buf.ready()==false) System.out.println("流为空");
while(buf.ready())
{
System.out.println("正在输出");
String line=buf.readLine();
System.out.println(line);
}
client.close();
out.flush();
}
}
例如输入
http://www.baidu.com
会得到的Http请求是这个。但是收不回信息不知道是为什么
GET HTTP/1.1
HOST www.baidu.com 展开
2014-03-13
展开全部
请求的header不对,服务器不理你了。
使用HttpURLConnection对比一下请求和回应的资料
使用HttpURLConnection对比一下请求和回应的资料
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