Question

我有以下代码与excpetion处理，这不起作用：

LoadQuestionsDataButton::actionPerformed(ActionEvent)

try
{
    questions = ParseXml.parseQuestionsData(questionsDataFile);

    // only for broken xml-files!
} catch (java.lang.Exception e)
{
    JOptionPane.showMessageDialog(mainWindow, "<html><body>The XML-file seems to be corrupt:<br><br>" +
            e.getMessage() +
            ".</body></html>", "Corrupt XML-file.", JOptionPane.ERROR_MESSAGE);

    System.out.println("error-message");

    return;
} catch (AssertionError e)
{
    JOptionPane.showMessageDialog(mainWindow, "<html>The XML-file seems to be corrupt.<br></html>", "Fehler beim Laden der XML-Datei.", JOptionPane.ERROR_MESSAGE);

    return;
}

ArrayList<Question> ParseXml::parseQuestionsData(File)

if(number == "")
{
    Exception e;
    System.out.println("before exception");

    if(firstQuestion)
        e = new Exception("The first question does not contain numbering!");
    else
        e = new Exception("The Question after <" + lastNumber + "> does not contain numbering!");

    System.out.println("after exception creation");

    throw e;
}

当我用number == ""加载XML文件时，然后＆＃34;在异常＆＃34;之前和＃34;创建异常后＃34;得到打印，但错误消息对话框和＆＃34;错误消息＆＃34;没有！

它还显示堆栈跟踪：

before exception
after exception creation
java.lang.Exception: The first question does not contain numbering!
    at com.examquestions.Buttons.ParseXml.parseQuestionsData(ParseXml.java:60)
    at com.examquestions.Buttons.LoadQuestionsDataButton.actionPerformed(LoadQuestionsDataButton.java:65)
    at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1967)
[...]

stacktrace on pastebin.com

我无法在此处显示更多的堆栈跟踪，因为stackoverflow会抱怨代码太多。

Answer 1

我在parseQuestionsData(File) - try-catch中e.printStackTrace() catch包围了{{1}}。

这不行。没记错。

异常未捕获/异常处理不起作用

1 个答案: