我主要为技术精通的人写一个小工具,例如程序员,工程师等等.由于这些工具通常会随着时间的推移而改进,因此我知道将会有未处理的异常,用户不会介意.我希望用户能够向我发送回溯,以便我可以检查发生了什么,并可能改进应用程序.
我通常做wxPython编程,但我最近做了一些Java.我已经把TaskDialog类挂接到Thread.UncaughtExceptionHandler(),我对结果很满意.特别是它可以捕获和处理任何线程的异常：
我在wxPython中做了类似的工作很长一段时间.然而：
>我不得不写一个装饰器,以便能够从另一个线程打印异常.
>即使在功能上,结果也相当丑陋.
这里是Java和wxPython的代码,所以你可以看到我做了什么：
Java的：
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.JButton;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import com.ezware.dialog.task.TaskDialogs;
public class SwingExceptionTest {
private JFrame frame;
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch (ClassNotFoundException e) {
}
catch (InstantiationException e) {
}
catch (IllegalAccessException e) {
}
catch (UnsupportedLookAndFeelException e) {
}
Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
public void uncaughtException(Thread t,Throwable e) {
TaskDialogs.showException(e);
}
});
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
SwingExceptionTest window = new SwingExceptionTest();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public SwingExceptionTest() {
initialize();
}
private void initialize() {
frame = new JFrame();
frame.setBounds(100,100,600,400);
frame.setDefaultCloSEOperation(JFrame.EXIT_ON_CLOSE);
GridBagLayout gridBagLayout = new GridBagLayout();
gridBagLayout.columnWidths = new int[]{0,0};
gridBagLayout.rowHeights = new int[]{0,0};
gridBagLayout.columnWeights = new double[]{0.0,Double.MIN_VALUE};
gridBagLayout.rowWeights = new double[]{0.0,Double.MIN_VALUE};
frame.getContentPane().setLayout(gridBagLayout);
JButton btnNewButton = new JButton("Throw!");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
onButton();
}
});
GridBagConstraints gbc_btnNewButton = new GridBagConstraints();
gbc_btnNewButton.gridx = 0;
gbc_btnNewButton.gridy = 0;
frame.getContentPane().add(btnNewButton,gbc_btnNewButton);
}
protected void onButton(){
Thread worker = new Thread() {
public void run() {
throw new RuntimeException("Exception!");
}
};
worker.start();
}
}
wxPython的：
import StringIO
import sys
import traceback
import wx
from wx.lib.delayedresult import startWorker
def thread_guard(f):
def thread_guard_wrapper(*args,**kwargs) :
try:
r = f(*args,**kwargs)
return r
except Exception:
exc = sys.exc_info()
output = StringIO.StringIO()
traceback.print_exception(exc[0],exc[1],exc[2],file=output)
raise Exception("<THREAD GUARD>\n\n" + output.getvalue())
return thread_guard_wrapper
@thread_guard
def thread_func():
return 1 / 0
def thread_done(result):
r = result.get()
print r
class MainWindow(wx.Frame):
def __init__(self,*args,**kwargs):
wx.Frame.__init__(self,**kwargs)
self.panel = wx.Panel(self)
self.button = wx.Button(self.panel,label="Throw!")
self.button.Bind(wx.EVT_BUTTON,self.OnButton)
self.sizer = wx.BoxSizer()
self.sizer.Add(self.button)
self.panel.SetSizerAndFit(self.sizer)
self.Show()
def OnButton(self,e):
startWorker(thread_done,thread_func)
app = wx.App(True)
win = MainWindow(None,size=(600,400))
app.MainLoop()
现在的问题：
我可以轻松地做一些类似于wxPython中的Java解决方案的东西吗？或者也许,在Java或wxPython中有更好的方法吗？
