exceptiondialog.java

《j2ee开发全程实录》随书源码

package com.cownew.PIS.ui.ctrl.dialog;

import java.awt.BorderLayout;
import java.awt.HeadlessException;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

import com.cownew.PIS.framework.client.MainFrame;
import com.cownew.ctk.common.StringUtils;
import com.cownew.ctk.ui.swing.SwingUtils;

public class ExceptionDialog extends JDialog
{

	private static final String DEFAULTDESC = "系统运行发生未知错误,请将下面的错误信息发送给开发人员!";

	private static final long serialVersionUID = 1L;

	private JPanel jContentPane = null;

	private JTextArea txtMsg = null;

	private JScrollPane jScrollPane = null;

	private JTextArea txtStackTrace = null;

	private JButton btnClose = null;

	private JButton btnCopyStackTrace = null;

	public ExceptionDialog() throws HeadlessException
	{
		super(MainFrame.getMainFrame());
		initialize();
	}

	/**
	 * This method initializes this
	 * 
	 * @return void
	 */
	private void initialize()
	{
		this.setSize(559, 258);
		this.setTitle("错误");
		this.setContentPane(getJContentPane());
	}

	/**
	 * This method initializes jContentPane
	 * 
	 * @return javax.swing.JPanel
	 */
	private JPanel getJContentPane()
	{
		if (jContentPane == null)
		{
			jContentPane = new JPanel();
			jContentPane.setLayout(null);
			jContentPane.add(getTxtMsg(), null);
			jContentPane.add(getJScrollPane(), null);
			jContentPane.add(getBtnClose(), null);
			jContentPane.add(getBtnCopyStackTrace(), null);
			jContentPane.setLayout(new BorderLayout());
		}
		return jContentPane;
	}

	/**
	 * This method initializes txtMsg
	 * 
	 * @return javax.swing.JTextArea
	 */
	private JTextArea getTxtMsg()
	{
		if (txtMsg == null)
		{
			txtMsg = new JTextArea();
			txtMsg.setBounds(new Rectangle(20, 20, 518, 33));
			txtMsg.setEditable(false);
			txtMsg.setLineWrap(true);
			txtMsg.setWrapStyleWord(true);
			txtMsg.setBackground(getBackground());
			txtMsg.setText(DEFAULTDESC);
		}
		return txtMsg;
	}

	/**
	 * This method initializes jScrollPane
	 * 
	 * @return javax.swing.JScrollPane
	 */
	private JScrollPane getJScrollPane()
	{
		if (jScrollPane == null)
		{
			jScrollPane = new JScrollPane();
			jScrollPane.setBounds(new Rectangle(21, 62, 521, 129));
			jScrollPane.setViewportView(getTxtStackTrace());
		}
		return jScrollPane;
	}

	/**
	 * This method initializes txtStackTrace
	 * 
	 * @return javax.swing.JTextArea
	 */
	private JTextArea getTxtStackTrace()
	{
		if (txtStackTrace == null)
		{
			txtStackTrace = new JTextArea();
			txtStackTrace.setLineWrap(true);
		}
		return txtStackTrace;
	}

	/**
	 * This method initializes btnClose
	 * 
	 * @return javax.swing.JButton
	 */
	private JButton getBtnClose()
	{
		if (btnClose == null)
		{
			btnClose = new JButton();
			btnClose.setBounds(new Rectangle(69, 195, 97, 23));
			btnClose.setText("关闭");
			btnClose.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e)
				{
					btnClose_actionPerformed(e);
				}
			});
		}
		return btnClose;
	}

	/**
	 * This method initializes btnCopyStackTrace
	 * 
	 * @return javax.swing.JButton
	 */
	private JButton getBtnCopyStackTrace()
	{
		if (btnCopyStackTrace == null)
		{
			btnCopyStackTrace = new JButton();
			btnCopyStackTrace.setBounds(new Rectangle(384, 196, 113, 24));
			btnCopyStackTrace.setText("复制错误信息");
			btnCopyStackTrace
					.addActionListener(new java.awt.event.ActionListener() {
						public void actionPerformed(java.awt.event.ActionEvent e)
						{
							btnCopyStackTrace_actionPerformed(e);
						}
					});
		}
		return btnCopyStackTrace;
	}

	protected void btnCopyStackTrace_actionPerformed(ActionEvent e)
	{
		txtStackTrace.selectAll();
		txtStackTrace.copy();
	}

	protected void btnClose_actionPerformed(ActionEvent e)
	{
		dispose();
	}
	
	public void setException(Throwable t)
	{
		txtStackTrace.setText(StringUtils.stackToString(t));
		txtStackTrace.setCaretPosition(0);
	}
	
	public void setDescription(String desc)
	{
		txtMsg.setText(desc);
	}
	
	public static void showException(Throwable t)
	{
		ExceptionDialog dlg = new ExceptionDialog();
		dlg.setModal(true);
		dlg.setDescription(DEFAULTDESC);
		dlg.setException(t);
		SwingUtils.centerAtScreen(dlg);
		dlg.show();		
	}
	
	public static void showException(Throwable t,String desc)
	{
		ExceptionDialog dlg = new ExceptionDialog();
		dlg.setModal(true);
		dlg.setDescription(desc);
		dlg.setException(t);
		SwingUtils.centerAtScreen(dlg);
		dlg.show();		
	}

} // @jve:decl-index=0:visual-constraint="10,10"