[JAVA] Come chiamo una apgina php da Java???

digital.daigor

[JAVA] Come chiamo una apgina php da Java???

We......
ho un idea da mettere in pratica....premetto che di JAVA capisco poco, quindi se rispondete siate moooolto chiari....

Come posso chiamare una pagina PHP da JAVA?????

cali1981

Chiamare intendi cioè scaricare il contenuto? Se è questo, prova questo script preso in rete:

// This example is from _Java Examples in a Nutshell_. (http://www.oreilly.com)
// Copyright (c) 1997 by David Flanagan
// This example is provided WITHOUT ANY WARRANTY either expressed or implied.
// You may study, use, modify, and distribute it for non-commercial purposes.
// For any commercial use, see http://www.davidflanagan.com/javaexamples

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

/**
 * This program connects to a Web server and downloads the specified URL
 * from it.  It uses the HTTP protocol directly.
 **/
public class HttpClient {
  public static void main(String[] args) {
    try {
      // Check the arguments
      if ((args.length != 1) && (args.length != 2))
        throw new IllegalArgumentException("Wrong number of arguments");
      
      // Get an output stream to write the URL contents to
      OutputStream to_file;
      if (args.length == 2) to_file = new FileOutputStream(args[1]);
      else to_file = System.out;
      
      // Now use the URL class to parse the user-specified URL into
      // its various parts: protocol, host, port, filename.  Check the protocol
      URL url = new URL(args[0]);
      String protocol = url.getProtocol();
      if (!protocol.equals("http"))
        throw new IllegalArgumentException("URL must use 'http:' protocol");
      String host = url.getHost();
      int port = url.getPort();
      if (port == -1) port = 80;  // if no port, use the default HTTP port
      String filename = url.getFile();
      // Open a network socket connection to the specified host and port
      Socket socket = new Socket(host, port);
      // Get input and output streams for the socket
      InputStream from_server = socket.getInputStream();
      PrintWriter to_server = 
        new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));
      
      // Send the HTTP GET command to the Web server, specifying the file.
      // This uses an old and very simple version of the HTTP protocol
      to_server.println("GET " + filename);
      to_server.flush();  // Send it right now!
      
      // Now read the server's response, and write it to the file
      byte[] buffer = new byte[4096];
      int bytes_read;
      while((bytes_read = from_server.read(buffer)) != -1)
        to_file.write(buffer, 0, bytes_read);
      
      // When the server closes the connection, we close our stuff
      socket.close();
      to_file.close();
    }
    catch (Exception e) {    // Report any errors that arise
      System.err.println(e);
      System.err.println("Usage: java HttpClient <URL> [<filename>]");
    }
  }
}