messagedialog1.java

使用JavaMail开发的具有发送、接收邮件的应用

                temp.delete();
            }
            if (temp.isDirectory()) {
                delFolder(path + "/" + tempList[i]);// 再删除空文件夹

                flag = true;
            }
        }
        return flag;
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        txtSend = new javax.swing.JTextField();
        txtRecv = new javax.swing.JTextField();
        txtSentDate = new javax.swing.JTextField();
        txtSubject = new javax.swing.JTextField();
        jScrollPane1 = new javax.swing.JScrollPane();
        txtContent = new javax.swing.JEditorPane();
        jPanel2 = new javax.swing.JPanel();
        jScrollPane2 = new javax.swing.JScrollPane();
        jList1 = new javax.swing.JList(listModel);
        btnOpen = new javax.swing.JButton();
        btnSave = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);

        jLabel1.setText("发件人:");

        jLabel2.setText("收件人:");

        jLabel3.setText("日期:");

        jLabel4.setText("主题:");

        txtSend.setEditable(false);

        txtRecv.setEditable(false);

        txtSentDate.setEditable(false);

        txtSubject.setEditable(false);

        txtContent.setEditable(false);
        jScrollPane1.setViewportView(txtContent);

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jLabel1)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(txtSend, javax.swing.GroupLayout.DEFAULT_SIZE, 504, Short.MAX_VALUE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jLabel2)
                            .addComponent(jLabel3)
                            .addComponent(jLabel4))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(txtSubject, javax.swing.GroupLayout.DEFAULT_SIZE, 504, Short.MAX_VALUE)
                            .addComponent(txtSentDate, javax.swing.GroupLayout.DEFAULT_SIZE, 504, Short.MAX_VALUE)
                            .addComponent(txtRecv, javax.swing.GroupLayout.DEFAULT_SIZE, 504, Short.MAX_VALUE))))
                .addContainerGap())
            .addComponent(jScrollPane1)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel1)
                    .addComponent(txtSend, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(txtRecv, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel3)
                    .addComponent(txtSentDate, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel4)
                    .addComponent(txtSubject, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 314, Short.MAX_VALUE))
        );

        getContentPane().add(jPanel1, java.awt.BorderLayout.CENTER);

        jPanel2.setBorder(javax.swing.BorderFactory.createEtchedBorder());

        jScrollPane2.setViewportView(jList1);

        btnOpen.setText("打开");
        btnOpen.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnOpenActionPerformed(evt);
            }
        });

        btnSave.setText("保存");
        btnSave.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnSaveActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 415, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(33, 33, 33)
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(btnSave, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(btnOpen, javax.swing.GroupLayout.DEFAULT_SIZE, 88, Short.MAX_VALUE))
                .addContainerGap())
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 85, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(btnOpen)
                .addGap(10, 10, 10)
                .addComponent(btnSave))
        );

        getContentPane().add(jPanel2, java.awt.BorderLayout.SOUTH);

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

private void btnOpenActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnOpenActionPerformed
    if (jList1.getSelectedIndex() >= 0) {
        String fileName = (String) listModel.getElementAt(jList1.getSelectedIndex());

        try {
            Runtime.getRuntime().exec("cmd /c start " + path + fileName);
        } catch (IOException ex) {//GEN-LAST:event_btnOpenActionPerformed
            Logger.getLogger(MessageDialog1.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

private void btnSaveActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnSaveActionPerformed
// TODO add your handling code here:
    if (jList1.getSelectedIndex() >= 0) {
        String fileName = (String) listModel.getElementAt(jList1.getSelectedIndex());

        JFileChooser chooser = new JFileChooser();
        chooser.setCurrentDirectory(new File("."));
        int ret = chooser.showOpenDialog(this);
        if (ret == JFileChooser.APPROVE_OPTION) {
                FileInputStream in = null;
                FileOutputStream out = null;
                try {
                    String saveFile = chooser.getSelectedFile().getPath();
                    in = new FileInputStream(new File("mail/" + fileName));
                    out = new FileOutputStream(new File(saveFile));
                    byte[] content = new byte[255];
                    int read;
                    while ((read = in.read(content)) != -1) {
                        out.write(content);
                    }
                    out.close();
                    in.close();
                } catch (Exception ex) {
                    Logger.getLogger(MessageDialog1.class.getName()).log(Level.SEVERE, null, ex);
                } finally {
                    try {
                        in.close();
                        out.close();
                    } catch (IOException ex) {
                        Logger.getLogger(MessageDialog1.class.getName()).log(Level.SEVERE, null, ex);
                    }
                }
        }
    }
}//GEN-LAST:event_btnSaveActionPerformed

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton btnOpen;
    private javax.swing.JButton btnSave;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JList jList1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JEditorPane txtContent;
    private javax.swing.JTextField txtRecv;
    private javax.swing.JTextField txtSend;
    private javax.swing.JTextField txtSentDate;
    private javax.swing.JTextField txtSubject;
    // End of variables declaration//GEN-END:variables
}