java 实现数字证书的操作实现网络安全

package com.nac.client; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.util.ArrayList; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JComponent; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JPasswordField; import javax.swing.JTextField; /** * “证书的初始化”版块的界面 */ public class CertificateInitialPanel extends JPanel { private static final long serialVersionUID = -3737797013049019491L; private JTextField aliasTextField; private JComboBox keyalgComboBox; private JComboBox sigalgComboBox; private JComboBox keysizeComboBox; private JTextField cnTextField; private JTextField ouTextField; private JTextField oTextField; private JTextField cTextField; private JTextField validityTextField; private JPasswordField keypassPasswordField; private JPasswordField keypassPasswordField2; private JLabel messageLabel; private JButton submitButton; private JButton resetButton; /** * 构造函数 */ public CertificateInitialPanel() { this.initComponent(); this.initLayout(); this.initEventListener(); } /** * 初始化组件 */ private void initComponent() { this.aliasTextField = new JTextField(15); this.keyalgComboBox = new JComboBox( new String[] { "DSA", "RSA" }); this.sigalgComboBox = new JComboBox(new String[] { "SHA1withDSA", "MD5withRSA" }); this.sigalgComboBox.setEnabled(false); this.keysizeComboBox = new JComboBox(); for (int i = 1024; i >= 512; i -= 64) { this.keysizeComboBox.addItem(String.valueOf(i)); } this.cnTextField = new JTextField(15); this.ouTextField = new JTextField(15); this.oTextField = new JTextField(15); this.cTextField = new JTextField("CN", 15); this.validityTextField = new JTextField("90", 15); this.keypassPasswordField = new JPasswordField(15); this.keypassPasswordField2 = new JPasswordField(15); this.messageLabel = new JLabel(" " + System.getProperty("line.separator") + " "); this.submitButton = new JButton("确定"); this.resetButton = new JButton("重置"); } /** * 布局 */ private void initLayout() { this.setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); this.addGridBagComponent(c, new JLabel("证书别名："), 0, 0); this.addGridBagComponent(c, this.aliasTextField, 1, 0, 1, 1, 0, 0, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("算法名称："), 0, 1); this.addGridBagComponent(c, this.keyalgComboBox, 1, 1, 1, 1, 0, 0, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("签名算法："), 0, 2); this.addGridBagComponent(c, this.sigalgComboBox, 1, 2, 1, 1, 0, 0, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("密钥大小："), 0, 3); this.addGridBagComponent(c, this.keysizeComboBox, 1, 3, 1, 1, 0, 0, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("您的姓名："), 0, 4); this.addGridBagComponent(c, this.cnTextField, 1, 4, 1, 1, 0, 0, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("组织单位："), 0, 5); this.addGridBagComponent(c, this.ouTextField, 1, 5, 1, 1, 0, 0, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("组织名称："), 0, 6); this.addGridBagComponent(c, this.oTextField, 1, 6, 1, 1, 0, 0, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("国家代码："), 0, 7); this.addGridBagComponent(c, this.cTextField, 1, 7, 1, 1, 0, 0, 0.5, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("有效天数："), 0, 8); this.addGridBagComponent(c, this.validityTextField, 1, 8, 1, 1, 0, 0, 0.5, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("密钥口令："), 0, 9); this.addGridBagComponent(c, this.keypassPasswordField, 1, 9, 1, 1, 0, 0, 0.5, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, new JLabel("重输口令："), 0, 10); this.addGridBagComponent(c, this.keypassPasswordField2, 1, 10, 1, 1, 0, 0, 0.5, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, this.messageLabel, 0, 11, 2, 1, 0, 0, 0.5, 0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, this.submitButton, 1, 12, 1, 1, 0, 0, 0.5, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); this.addGridBagComponent(c, this.resetButton, 2, 12, 1, 1, 0, 0, 0.5, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); } /** * 事件侦听 */ private void initEventListener() { this.submitButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { submit(); } }); this.resetButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { reset(); } }); // 签名算法随密钥算法的改变而改变 this.keyalgComboBox.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { sigalgComboBox.setSelectedIndex(keyalgComboBox .getSelectedIndex()); } }); } /** * 辅助网格组布局 */ private void addGridBagComponent(GridBagConstraints c, JComponent component, int gridx, int gridy) { addGridBagComponent(c, component, gridx, gridy, 1, 1); } private void addGridBagComponent(GridBagConstraints c, JComponent component, int gridx, int gridy, int gridwidth, int gridheight) { addGridBagComponent(c, component, gridx, gridy, gridwidth, gridheight, 0, 0, 0.5, 0, GridBagConstraints.EAST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5)); } private void addGridBagComponent(GridBagConstraints c, JComponent component, int gridx, int gridy, int gridwidth, int gridheight, int ipadx, int ipady, double weightx, double weighty, int anchor, int fill, Insets insets) { c.gridx = gridx; c.gridy = gridy; c.gridwidth = gridwidth; c.gridheight = gridheight; c.anchor = anchor; c.insets = insets; c.fill = fill; c.ipadx = ipadx; c.ipady = ipady; c.weightx = weightx; c.weighty = weighty; this.add(component, c); } /** * 执行初始化 */ private void reset() { this.messageLabel.setText(""); this.aliasTextField.setText(""); this.cnTextField.setText(""); this.ouTextField.setText(""); this.oTextField.setText(""); this.keypassPasswordField.setText(""); this.keypassPasswordField2.setText(""); } private void submit() { // 证书别名 alias String alias = this.aliasTextField.getText(); if (alias == null || alias.trim().equals("")) { this.messageLabel.setText("<html><body style='color:red'>" + "证书别名不能为空！" + "</body></html>"); return; } alias = alias.trim(); // CN String cn = this.cnTextField.getText(); if (cn == null || cn.trim().equals("")) { this.messageLabel.setText("<html><body style='color:red'>" + "您的姓名不能为空！" + "</body></html>"); retur