dicclient.java

一个用java编写的字典。使用的是数组查询来实现单词的查找。附带单词文档。有1万多个单词课查询。可以设置server和port.

import java.awt.Dimension;
import java.awt.Toolkit;
import java.net.*;
import java.io.*;
import javax.swing.JFrame;

public class DicClient extends javax.swing.JFrame {
    
    /**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	/** Creates new form ClientFrame */
    public DicClient() {
        initComponents();
        this.jLabel6.setVisible(false);
        this.jLabel7.setVisible(false);
        this.jLabel8.setVisible(false);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setLocation((int)(screen.getWidth()/2-width/2),(int)(screen.getHeight()/2-height/2));
        
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        jTextField2 = new javax.swing.JTextField();
        jSeparator1 = new javax.swing.JSeparator();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        jTextField3 = new javax.swing.JTextField();
        jLabel5 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        jLabel6 = new javax.swing.JLabel();
        jLabel7 = new javax.swing.JLabel();
        jScrollPane2 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jLabel8 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setText("Host Name");

        jLabel2.setText("Port Num.");

        jTextField2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField2ActionPerformed(evt);
            }
        });

        jLabel3.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
        jLabel3.setText("Dictionary Client");

        jLabel4.setText("Word");

        jLabel5.setText("Meaning");

        jButton1.setText("Translate");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jLabel6.setForeground(new java.awt.Color(255, 51, 0));
        jLabel6.setText("Error Port Number");

        jLabel7.setForeground(new java.awt.Color(255, 51, 0));
        jLabel7.setText("Host not Exist");

        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane2.setViewportView(jTextArea1);

        jLabel8.setForeground(new java.awt.Color(255, 51, 0));
        jLabel8.setText("Time Out!");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(126, 126, 126)
                        .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 284, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(25, 25, 25)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel2)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 84, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(18, 18, 18)
                                .addComponent(jLabel6))
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel1)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 278, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addComponent(jLabel7)))
                        .addGap(125, 125, 125))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jSeparator1, javax.swing.GroupLayout.DEFAULT_SIZE, 570, Short.MAX_VALUE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(35, 35, 35)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jLabel4)
                            .addComponent(jLabel5))
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(14, 14, 14)
                                .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 273, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jScrollPane2)))
                        .addGap(18, 18, 18)
                        .addComponent(jButton1)
                        .addGap(18, 18, 18)
                        .addComponent(jLabel8)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(33, 33, 33)
                .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 37, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(46, 46, 46)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel1)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel7))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel6))
                .addGap(18, 18, 18)
                .addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel4)
                    .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButton1)
                    .addComponent(jLabel8))
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(26, 26, 26)
                        .addComponent(jLabel5))
                    .addGroup(layout.createSequentialGroup()
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(56, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

private void jTextField2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jTextField2ActionPerformed

}//GEN-LAST:event_jTextField2ActionPerformed

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
    this.jLabel6.setVisible(false);
    this.jLabel7.setVisible(false);
    this.jLabel8.setVisible(false);
    serverHostName = jTextField1.getText();
    String word = jTextField3.getText().trim();
    try{
    port = Integer.parseInt(jTextField2.getText().trim());
    }catch(Exception e){
        jLabel6.setVisible(true);
    }
    jLabel6.setVisible(false);
    String meaning= DictionarySearch(word);
    jTextArea1.setText(meaning);
    this.jTextField3.setText("");
}//GEN-LAST:event_jButton1ActionPerformed

    public String DictionarySearch(String A){
		StringBuffer translate = new StringBuffer();
		try{
			String line = "";
//			open a connection to the server
			Socket s=new Socket(serverHostName,port);
//			System.out.println("Has connected to the server...");
			s.setSoTimeout(3000);
//				send the word which need to translate to Dicserver
			BufferedWriter writer=
		           new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
		    writer.write(A);
		    writer.newLine();
		    writer.flush();
//		  read the result from the data stream
		    BufferedReader reader=
		           new BufferedReader(new InputStreamReader(s.getInputStream()));
		   while((line = reader.readLine())!=null){
				translate.append(line);//read each line of the specific web page
			}
		    reader.close();
		    writer.close(); 
		    s.close();
		}
                catch(UnknownHostException ce){
			this.jLabel7.setVisible(true);
		}
		catch(ConnectException ce){
			this.jLabel7.setVisible(true);
		}
		catch(SocketTimeoutException e){
			this.jLabel8.setVisible(true);
		}
		catch(IOException ioe) { 
		System.out.println("IOException: " + ioe); ioe.printStackTrace(); 
		}
		return translate.toString();
	}
   
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new DicClient().setVisible(true);
            }
        });
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JLabel jLabel6;
    private javax.swing.JLabel jLabel7;
    private javax.swing.JLabel jLabel8;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JSeparator jSeparator1;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    private javax.swing.JTextField jTextField3;
    // End of variables declaration//GEN-END:variables
    private String serverHostName = "";
    private int port = 0;
    private final int width=320,height=220;
    Dimension screen=Toolkit.getDefaultToolkit().getScreenSize();
}