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From sul...@apache.org
Subject cvs commit: jakarta-commons/httpclient/src/examples MultipartFileUploadApp.java
Date Sat, 12 Oct 2002 04:36:32 GMT
sullis      2002/10/11 21:36:32

  Added:       httpclient/src/examples MultipartFileUploadApp.java
  Log:
  Java application that uses the HttpClient multipart POST functionality
  
  Revision  Changes    Path
  1.1                  jakarta-commons/httpclient/src/examples/MultipartFileUploadApp.java
  
  Index: MultipartFileUploadApp.java
  ===================================================================
  /*
   * $Header $
   * $Revision: 1.2 $
   * $Date:  $
   * 
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "HttpClient", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   * [Additional notices, if required by prior licensing conditions]
   *
   */
  
  import org.apache.commons.httpclient.*;
  import org.apache.commons.httpclient.methods.*;
  import java.io.*;
  import java.lang.reflect.InvocationTargetException;
  import java.net.MalformedURLException;
  import java.net.URL;
  import javax.swing.*;
  import java.awt.event.*;
  import java.awt.*;
  import javax.swing.text.html.*;
  
  /**
   * 
   * This is a Swing application that demonstrates
   * how to use the Jakarta HttpClient multipart POST method
   * for uploading files
   * 
   * @author Sean C. Sullivan
   *
   */
  public class MultipartFileUploadApp
  {
  
  	public static void main(String[] args)
  	{
  		MultipartFileUploadMainFrame f = new MultipartFileUploadMainFrame();
  		f.setTitle("HTTP multipart file upload application");
  		f.setSize(700, 500);
  		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  		f.setVisible(true);
  	}
  
  	public static class MultipartFileUploadMainFrame extends javax.swing.JFrame
  	{
  		private MultipartFileUploadPanel m_panel;
  
  		public MultipartFileUploadMainFrame()
  		{
  			m_panel = new MultipartFileUploadPanel();
  			this.getContentPane().add(m_panel);
  		}
  	}
  
  	public static class MultipartFileUploadPanel extends JPanel
  	{
  		private static final String strTenSpaces = "          ";
  		private static final String strFortySpaces =
  			strTenSpaces + strTenSpaces + strTenSpaces + strTenSpaces;
  		private static final String strEightySpaces =
  			strFortySpaces + strFortySpaces;
  
  		private File targetFile = null;
  		
  		public MultipartFileUploadPanel()
  		{
  			final JPanel panInput = new JPanel();
  			
  			String[] aURLs =
  				{
  					"http://localhost:8080/foo/bar"
  				};
  
  			final JComboBox cmbURL = new JComboBox(aURLs);
  			cmbURL.setToolTipText("Enter a URL");
  			cmbURL.setPrototypeDisplayValue(strEightySpaces);
  			cmbURL.setEditable(true);
  			cmbURL.setSelectedIndex(0);
  
  			final JLabel lblTargetFile = new JLabel();
  			lblTargetFile.setText("");
  
  			final JButton btnDoUpload = new JButton("Upload");
  			btnDoUpload.setEnabled(false);
  
  			final JButton btnSelectFile = new JButton("Select a file...");
  			btnSelectFile.addActionListener(new ActionListener()
  				{
  					public void actionPerformed(final ActionEvent evt)
  					{
  						final JFileChooser chooser = new JFileChooser();
  						chooser.setFileHidingEnabled(false);
  						chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
  						chooser.setMultiSelectionEnabled(false);
  						chooser.setDialogType(JFileChooser.OPEN_DIALOG);
  						chooser.setDialogTitle("Choose a file...");
  						if (chooser.showOpenDialog(MultipartFileUploadPanel.this) == JFileChooser.APPROVE_OPTION)
  						{
  							targetFile = chooser.getSelectedFile();
  							lblTargetFile.setText("Selected file:  " + targetFile.toString());
  							btnDoUpload.setEnabled(true);
  						}
  					}
  				});
  			
  			final JTextArea taTextResponse = new JTextArea();
  			taTextResponse.setEditable(false);
  			taTextResponse.setCaretPosition(0);
  
  			final JLabel lblURL = new JLabel("URL:");
  
  
  			btnDoUpload.addActionListener(new ActionListener()
  			{
  				public void actionPerformed(ActionEvent ae)
  				{
  					URL targetURL = null;
  
  					try
  					{					
  						targetURL = new URL(cmbURL.getSelectedItem().toString());
  					}
  					catch (MalformedURLException ex)
  					{
  						// todo - code here
  						ex.printStackTrace();
  					}
  
  										
  					MultipartPostMethod filePost = new MultipartPostMethod();
  					if (targetURL.getPath() == null)
  					{
  						filePost.setPath("/");
  					}
  					else
  					{
  						filePost.setPath(targetURL.getPath());
  					}
  					
  					try
  					{
  						filePost.addParameter(
  								targetFile.getName(),
  								targetFile);
  						HttpClient client = new HttpClient();
  						client.startSession(targetURL);
  						client.executeMethod(filePost);
  					}
  					catch (FileNotFoundException ex)
  					{
  						// todo - put real code here
  						ex.printStackTrace();
  					}
  					catch (HttpException ex)
  					{
  						// todo - put real code here
  						ex.printStackTrace();
  					}
  					catch (java.io.IOException ex)
  					{
  						// todo - put real code here
  						ex.printStackTrace();
  					}
  					
  				}
  			});
  
  			JPanel panURLInput = new JPanel();
  			panURLInput.setLayout(new FlowLayout());
  			panURLInput.add(lblURL);
  			panURLInput.add(cmbURL);
  			
  			JPanel panFile = new JPanel();
  			panFile.setLayout(new FlowLayout());
  			panFile.add(lblTargetFile);
  			panFile.add(btnSelectFile);
  			
  			panInput.setLayout(new GridLayout(3, 1));
  
  			panInput.add(panURLInput);
  			panInput.add(panFile);
  			panInput.add(btnDoUpload);
  			
  			this.setLayout(new BorderLayout());
  
  			this.add(panInput, BorderLayout.CENTER);
  		}
  	}
  }
  
  
  

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