urlclient.java

JAVA编程百例书中各章节的所有例子的源代码,包括套接字编程

package ch07.section10;

import java.io.*;
import java.net.*;

public class URLClient {
  public static void main(String[] args) {
    String urlString = "http://www.csdn.net/member/login.asp";
//    URLClient client = new URLClient();
    StringBuffer document = new StringBuffer();
    try {
      URL url = new URL(urlString);
      URLConnection conn = url.openConnection();
      conn.setDoOutput(true);
      OutputStreamWriter out = new
          OutputStreamWriter(conn.getOutputStream(), "8859_1");
      out.write("login_name=weijian&password=48807");
      //  remember  to  clean  up
      out.flush();
      out.close();

//      conn.connect();
//      System.out.println(conn.toString());
//      System.out.println(conn.getHeaderFields());
//      System.out.println(conn.getRequestProperty("accept"));
//      conn.getInputStream();

      BufferedReader reader = new BufferedReader(new InputStreamReader(conn.
          getInputStream()));
      String line = null;
      while ( (line = reader.readLine()) != null) {
        document.append(line + "");
      }
      reader.close();

    }
    catch (MalformedURLException e) {
      System.out.println("Unable to connect to URL: " + urlString);
    }
    catch (IOException e) {
      System.out.println("IOException when connecting to URL: " + urlString);
    }

  }

}