java.net.ConnectException: Connection timed out: connect

[xghrbc1001]

import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;
import java.sql.ResultSet;

import org.sql.IntoDB;

public class BaiduReferer {
public static void main(String[] args) throws UnknownHostException,
IOException, InterruptedException {
for(int i=0;i<1000;i++){
send("");
Thread.sleep(5000);
}
}
public static void send(String url) throws UnknownHostException,
IOException {
Socket socket = new Socket("www.baidu.com", 80);
StringBuffer sb = new StringBuffer("GET /" + url + " HTTP/1.1");
sb.append("\r\n");
sb.append("Host: www.baidu.com");
sb.append("\r\n");
sb
.append("User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8 GTB6");
sb.append("\r\n");
sb
.append("Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
sb.append("\r\n");
sb.append("Accept-Language: zh,en;q=0.8,zh-cn;q=0.5,en-us;q=0.3");
sb.append("\r\n");
sb.append("Accept-Encoding: gzip,deflate");
sb.append("\r\n");
sb.append("Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7");
sb.append("\r\n");
sb.append("Keep-Alive: 300");
sb.append("\r\n");
sb.append("\r\n");

OutputStream socketOut = socket.getOutputStream();
socketOut.write(sb.toString().getBytes());
socket.shutdownOutput(); //半闭输出流


if(socket!=null){
socket.close();
}
}
}

在连接400-500次的时候，就报java.net.ConnectException: Connection timed out: connect异常

[临远]

链接超时了

[usherlight]

你连接太频繁的话，有可能被服务器端认定是恶意攻击，主动关闭了你的连接
你试试其他的网站

[zyus1987]

~恩 ~！2楼说的有可能~！