在Java中获取堆栈跟踪

Question

如何在Java中获取异常堆栈跟踪？ 我可以使用Thread.currentThread（）。getStackTrace（）。但是得到错误亚麻布

正确：

java.lang.ArithmeticException: / by zero
at me.edagarli.Main.main(Main.java:32)

错误：

java.lang.ArithmeticException: / by zero
java.lang.Thread.getStackTrace(Thread.java:1589)    
me.edagarli.Main.main(Main.java:54) 

Answer 1

public String getFullErrorDescription(Exception exceptionObj ) {
    String textmsg = "";

    if (exceptionObj != null) {
        StackTraceElement[] ste = exceptionObj.getStackTrace();
        textmsg += "\nIn File : " + ste[index].getClassName() + " ";
        textmsg += "\nIn Method : " + ste[index].getMethodName() + "() ";
        textmsg += "\nAt Line :" + ste[index].getLineNumber() + " ";
    }
    System.err.println(textmsg);
    return textmsg;
}

Answer 2

如果您需要将堆栈跟踪消息放入String实例，您可以使用：

    public String getStackTraceAsString(Exception ex){
    StackTraceElement[] elements = ex.getStackTrace();
    String stacktraceMessage = "";

    for(StackTraceElement element : elements){
        stacktraceMessage += "\nIn File : " + element.getClassName() + " ";
        stacktraceMessage += "\nIn Method : " + element.getMethodName() + " ";
        stacktraceMessage += "\nAt Line :" + element.getLineNumber() + " ";
    }

    return stacktraceMessage;
}

如果只需要打印堆栈跟踪，可以使用printStackTrace方法：

try{
    int a = 100 / 0;
}catch (Exception ex){
    ex.printStackTrace();
}