我主要是为精通技术的人(例如程序员、工程师等)编写一个小工具。由于这些工具通常是随着时间的推移而改进的快速hack,我知道会有未处理的异常并且用户不会介意。我希望用户能够向我发送回溯,以便我可以检查发生的情况并可能改进应用程序。
我通常做 wxPython 编程,但最近我做了一些 Java。我已经将TaskDialog
课程连接到了Thread.UncaughtExceptionHandler()
,我对结果非常满意。特别是它可以捕获和处理来自任何线程的异常:
很长一段时间以来,我都在 wxPython 中做类似的事情。然而:
- 我必须编写一个装饰器黑客才能很好地打印另一个线程的异常。
- 即使功能正常,结果也很丑陋。
这是 Java 和 wxPython 的代码,所以你可以看到我做了什么:
爪哇:
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:
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, *args, **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:
我可以在 wxPython 中轻松地做类似于 Java 解决方案的事情吗?或者,在 Java 或 wxPython 中是否有更好的方法?