堆栈跟踪作为字符串 [英] Stack trace as String
问题描述
如何在Java中获取完整的异常消息?
我正在创建一个Java应用程序。如果有运行时异常,将弹出一个 JTextArea
的 JDialog
。我试图在我的应用程序中执行运行时异常,但显示异常消息的文本区域如下所示:
java.lang .ClassNotFoundException:com.app.Application
但是,我希望我的文本区域显示如下: / p>
这里是我的代码的一部分,由 try
和 catch
/ p>
String ex = e.toString();
this.addText(ex);
我试图使用 e.getLocalizedMessage()
和 e.getMessage()
,但这两者都不起作用。
您需要调用 Throwable#printStackTrace(PrintWriter);
try {
} catch(Exception ex){
String message = getStackTrace(ex);
}
public static String getStackTrace(final Throwable throwable){
final StringWriter sw = new StringWriter();
final PrintWriter pw = new PrintWriter(sw,true);
throwable.printStackTrace(pw);
return sw.getBuffer()。toString();
}
您还可以使用commons-lang-2.2.jar Apache Commons Lang库提供此功能:
public static String getStackTrace(Throwable throwable)
从Throwable获取堆栈跟踪作为字符串。
ExceptionUtils#getStackTrace()
How do I get full exception message in Java?
I am creating a Java Application. If there is a runtime exception, a JDialog
with a JTextArea
will pop up. I tried to make a runtime exception in my application, but the text area showing the exception message looks like this:
java.lang.ClassNotFoundException: com.app.Application
However, I want my text area to show something like:
Here is some part of my code surrounded by the try
and catch
:
String ex = e.toString();
this.addText(ex);
I've tried to use e.getLocalizedMessage()
and e.getMessage()
, but neither of these work.
You need to call the Throwable#printStackTrace(PrintWriter);
try{
}catch(Exception ex){
String message = getStackTrace(ex);
}
public static String getStackTrace(final Throwable throwable) {
final StringWriter sw = new StringWriter();
final PrintWriter pw = new PrintWriter(sw, true);
throwable.printStackTrace(pw);
return sw.getBuffer().toString();
}
You can also use commons-lang-2.2.jar Apache Commons Lang library which provides this functionality:
public static String getStackTrace(Throwable throwable)
Gets the stack trace from a Throwable as a String.
ExceptionUtils#getStackTrace()
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