我想用socket发一个请求到我写的一个jsp页面，请教各位大虾！

Question

out.println后要out.flush()的!
要么就
out = new PrintWriter(socket.getOutputStream(),true);

Answer 1

请问楼上的！为什么out.println后要out.flush()呢？

Answer 2

改了
out = new PrintWriter(socket.getOutputStream(),true);
还是不行！
有没这方面的源码啊？

Answer 3

还是先去查查HTTP的指令,我忘了!

Answer 4

在baidu上搜索了打半天都没找到合适的资料！
POST /xxx.jsp HTTP/1.1
Host: www.mywebsit.com
Content-Length: <Content-Length>
<param1>=<paramValue>
这个格式是项目文档上的例子！我想应该是正确的把！

Answer 5

发送必须是这种格式的，特别是回车换行，多个少个都不行:
POST http://news.sina.com.cn/c/2004-12-21/10084584671s.shtml HTTP/1.0
User-Agent: myselfHttp/1.0
Accept: www/source; text/html; image/gif; */*
Host: news.sina.com.cn
Content-type: application/x-www-form-urlencoded
Content-length: 30alumniuname=kkk&alumniupwd=kkksource:
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.Socket;
import java.net.URL;/*
 * Created on 2004-12-21
 * 
 * To change the template for this generated file go to Window - Preferences -
 * Java - Code Generation - Code and Comments
 *//**
 * @author Artimus
 * 
 * To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Generation - Code and Comments
 */
public class ConnectUrl {    private static final String OPEN_URL = "http://news.sina.com.cn/c/2004-12-21/10084584671s.shtml";    public static void main(String[] args) {
        Socket client = null;
        BufferedOutputStream sender = null;        try {
            URL webURL = new URL(OPEN_URL);
            InetAddress address = InetAddress.getByName(webURL.getHost());
            int portTemp = webURL.getPort();
            if (portTemp == -1) {
                portTemp = 80;
            }
            client = new Socket(address, portTemp);
            String content = "alumniuname=kkk&";
            content += "alumniupwd=kkk";            String cmd = "POST " + OPEN_URL + " HTTP/1.0\r\n" + getBaseHeads();
            cmd += "Host: " + webURL.getHost() + "\r\n";
            cmd += "Content-type: application/x-www-form-urlencoded\r\n";
            cmd += "Content-length: " + content.length() + "\r\n\r\n";
            cmd += content + "\r\n";
            
System.out.println(cmd);
// sender = new BufferedOutputStream(client.getOutputStream());
            sender.write(cmd.getBytes(), 0, cmd.length());
            sender.flush();            BufferedReader out = new BufferedReader(new InputStreamReader(
                    client.getInputStream()));
            int b;
            String line = null;
            int i = 0;
            if (out != null) {
                while ((line = out.readLine()) != null) {
                    System.out.println(line);
                }
                out.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (client != null) {
                    client.close();
                    client = null;
                }
            } catch (Exception e) {
                // TODO: handle exception
            }
        }
    }
    /** **************************** */
    public static String getBaseHeads() {
        String inf = "User-Agent: myselfHttp/1.0\r\n"
                + "Accept: www/source; text/html; image/gif; */*\r\n";
        return inf;
    }}

Answer 6

不好意思，这个不能注掉的:
// sender = new BufferedOutputStream(client.getOutputStream());