android 签名查看工具

package com.demo; import java.awt.BorderLayout; import java.awt.Button; import java.awt.Color; import java.awt.Container; import java.awt.GridLayout; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.File; import javax.swing.JButton; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.JTextField; public class ShowFrame extends JFrame { /** * */ private static final long serialVersionUID = 1L; private String filePath = null; private JTextField txtPath = null; private JTextArea textArea = null; private JTextField txtPsw = null; public ShowFrame() { int width = 800; int height = 600; this.setTitle("签名查看工具"); this.setSize(width,height); int srnWidth = Toolkit.getDefaultToolkit().getScreenSize().width; int srnHeight = Toolkit.getDefaultToolkit().getScreenSize().height; this.setLocation((srnWidth - width) / 2,(srnHeight - height) / 2); this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); this.addWindowListener(new WindowAdapter(){ @Override public void windowClosed(WindowEvent arg0) { //System.out.println("windowClosed"); super.windowClosed(arg0); } @Override public void windowClosing(WindowEvent arg0) { //System.out.println("windowClosing"); super.windowClosing(arg0); ShowFrame.this.dispose(); System.exit(0); } @Override public void windowOpened(WindowEvent arg0) { //System.out.println("windowOpened"); super.windowOpened(arg0); } }); this.setResizable(false); textArea = new JTextArea(); textArea.setBackground(new Color(0xff,0xff,0xff)); JPanel pnl = new JPanel(); pnl.setBackground(new Color(0xff,0xff,0xDD)); pnl.setLayout(new GridLayout(1,1)); this.add(pnl,BorderLayout.CENTER); pnl.add(textArea); this.add(pnl); JPanel pn2 = new JPanel(); pn2.setLayout(new GridLayout(1,6)); this.add(pn2,BorderLayout.SOUTH); JLabel lblHint = new JLabel("签名文件路径:"); txtPath = new JTextField(); //txtPath.setEditable(false); JLabel lblPsw = new JLabel("签名密码:"); txtPsw = new JTextField(); JButton btnLoad = new JButton("加载..."); JButton btnShow = new JButton("查看"); pn2.add(lblHint); pn2.add(txtPath); pn2.add(lblPsw); pn2.add(txtPsw); pn2.add(btnLoad); pn2.add(btnShow); this.setVisible(true); btnLoad.addActionListener(new ActionListener(){ @Override public void actionPerformed(ActionEvent arg0) { //System.out.println("load..."); openFile(); } }); btnShow.addActionListener(new ActionListener(){ @Override public void actionPerformed(ActionEvent arg0) { //System.out.println("btnShow..."); doShow(); } }); } private void openFile() { textArea.removeAll(); txtPath.setText(""); filePath = null; JFileChooser jfc = new JFileChooser(); jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); jfc.showDialog(new JLabel(), "选择"); File file = jfc.getSelectedFile(); if (file != null || file.isFile()) { filePath = file.getAbsolutePath(); txtPath.setText(filePath); } else { txtPath.setText("文件错误"); } //System.out.println(jfc.getSelectedFile().getName()); } private void doShow() { if (filePath == null) { JOptionPane.showMessageDialog(null, "请选择要查看的签名文件","提示",JOptionPane.WARNING_MESSAGE); return ; } String psw = txtPsw.getText(); if (psw == null || psw.trim().length() == 0) { JOptionPane.showMessageDialog(null, "输入签名密码","提示",JOptionPane.WARNING_MESSAGE); return ; } textArea.removeAll(); KeystoreUtils.show(filePath, psw,textArea); } }