JAVA:RSS与网格包布局

如果你想继续改进该接口，下面列出了一些快速清理接口的全部代码以帮助你快速起步。

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.table.*;

import javax.swing.event.*;

import java.util.Vector;

//Rome imports

import java.net.*;

import java.io.InputStreamReader;

import com.sun.syndication.feed.module.*;

import com.sun.syndication.feed.synd.*;

import com.sun.syndication.io.*;

import org.jdom.Document;

public class OldGridBagWindow extends JFrame {

 

private JButton searchBtn;

private JComboBox modeCombo;

private JLabel tagLbl;

private JLabel tagModeLbl;

private JLabel previewLbl;

private JTable resTable;

private JTextField tagTxt;

public OldGridBagWindow() {

Container contentPane = getContentPane();

GridBagLayout gridbag = new GridBagLayout();

contentPane.setLayout(gridbag);

GridBagConstraints c = new GridBagConstraints();

//setting a default constraint value

c.fill = GridBagConstraints.HORIZONTAL;

tagLbl = new JLabel("Tags");

tagLbl.setHorizontalAlignment(SwingConstants.RIGHT);

c.gridx = 0; //x grid position

c.gridy = 0; //y grid position

c.insets = new Insets(5,5,5,15);

gridbag.setConstraints(tagLbl, c); //associate the label with a constraint object

contentPane.add(tagLbl); //add it to content pane

tagModeLbl = new JLabel("Tag Mode");

tagModeLbl.setHorizontalAlignment(SwingConstants.RIGHT);

c.gridx = 0;

c.gridy = 1;

gridbag.setConstraints(tagModeLbl, c);

contentPane.add(tagModeLbl);

tagTxt = new JTextField("plinth");

c.gridx = 1;

c.gridy = 0;

c.gridwidth = 2;

c.insets = new Insets(0,0,0,0);

gridbag.setConstraints(tagTxt, c);

contentPane.add(tagTxt);

String[] options = {"all", "any"};

modeCombo = new JComboBox(options);

c.gridx = 1;

c.gridy = 1;

c.gridwidth = 1;

gridbag.setConstraints(modeCombo, c);

contentPane.add(modeCombo);

searchBtn = new JButton("Search");

searchBtn.addActionListener(new GridBagAL());

c.gridx = 1;

c.gridy = 2;

gridbag.setConstraints(searchBtn, c);

contentPane.add(searchBtn);

resTable = new JTable();

resTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

ListSelectionModel rowSM = resTable.getSelectionModel();

rowSM.addListSelectionListener(new ListSelectionListener() {

public void valueChanged(ListSelectionEvent e) {

//Ignore extra messages.

if (e.getValueIsAdjusting()) return;

 

ListSelectionModel lsm = (ListSelectionModel)e.getSource();

if (lsm.isSelectionEmpty()) {

//No rows are selected

} else {

int selectedRow = lsm.getMinSelectionIndex();

FlickrTableEntryfte=(FlickrTableEntry) resTable.getValueAt(selectedRow, 0);

previewLbl.setText(fte.getTitle());

try{

previewLbl.setIcon(newImageIcon(new URL(fte.getPicture())));

} catch (Exception ex){

ex.printStackTrace();

System.out.println("ERROR: "+ex.getMessage());

}

}

}

});

JScrollPane scrollPane = new JScrollPane(resTable);

scrollPane.setMinimumSize(new Dimension(450, 110));

c.gridx = 0;

c.gridy = 3;

c.gridwidth = 3;

c.fill = GridBagConstraints.BOTH;

gridbag.setConstraints(scrollPane, c);

contentPane.add(scrollPane);

previewLbl = new JLabel("Preview goes here");

previewLbl.setHorizontalAlignment(SwingConstants.CENTER);

previewLbl.setVerticalAlignment(SwingConstants.TOP);

previewLbl.setVerticalTextPosition(SwingConstants.TOP);

previewLbl.setHorizontalTextPosition(SwingConstants.CENTER);

previewLbl.setOpaque(true);

JScrollPane tmpPane = new JScrollPane(previewLbl);

tmpPane.setPreferredSize(new Dimension(450, 600));

c.gridx = 0;

c.gridy = 4;

c.weightx = 1;

c.weighty = 1;

c.fill = GridBagConstraints.BOTH;

gridbag.setConstraints(tmpPane, c);

contentPane.add(tmpPane);

 

addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {

System.exit(0);

}

});

}

 

public static void main(String args[]) {

OldGridBagWindow window = new OldGridBagWindow();

 

window.setTitle("GridBagWindow");

window.pack();

window.setVisible(true);

}

class GridBagAL implements ActionListener{

public void actionPerformed(ActionEvent e) {

try{

URLfeedUrl=new URL("http://api.flickr.com/services/feeds/photos_public.gne?tags="+URLEncoder.encode(tagTxt.getText(),"UTF-8") +"&tagmode="+modeCombo.getSelectedItem().toString()+"&format=rss_200_enc");

SyndFeedInput input = new SyndFeedInput();

SyndFeed feed = input.build(new XmlReader(feedUrl));

Vector tableData = new Vector();

for(Object ent: feed.getEntries()){

SyndEntryImpl sei = (SyndEntryImpl) ent;

for(Object enc_ent: sei.getEnclosures()){

SyndEnclosureImpl senci = (SyndEnclosureImpl) enc_ent;

Vector vectmp = new Vector();

vectmp.add(new FlickrTableEntry(sei.getTitle(), senci.getUrl()));

tableData.add(vectmp);

}

}

Vector colNames = new Vector();

colNames.add("Pictures");

resTable.setModel(new DefaultTableModel(tableData, colNames));

}

catch (Exception ex){

ex.printStackTrace();

System.out.println("ERROR: "+ex.getMessage());

}

}

}

class FlickrTableEntry{

private String title, picture;

public FlickrTableEntry(String title, String picture){

this.title = title;

this.picture = picture;

}

public String getTitle(){return title;}

public String getPicture(){return picture;}

public String toString(){return title;}

}

}

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