获取完整的字符串堆栈跟踪包括内部异常

Question

Java的e.printStackTrace()不会打印内部异常的堆栈跟踪的所有细节.

有没有现成的方法以字符串形式生成完整的堆栈跟踪？(除了自己格式化)

编辑

我刚刚发现了printStackTrace()的作用 - 显然它过滤掉的堆栈帧正是内部异常和外部异常共有的堆栈帧.所以实际上它是我想要的,而不是"完整"的堆栈跟踪.

Answer 1

我建议您使用Apache Commons lang中的ExceptionUtils类,它为此提供了有用的方法.

Answer 2

我最终滚动自己(我接受了Throwable.printStackTrace()的实现并稍微调整了一下):

public static String joinStackTrace(Throwable e) {
    StringWriter writer = null;
    try {
        writer = new StringWriter();
        joinStackTrace(e, writer);
        return writer.toString();
    }
    finally {
        if (writer != null)
            try {
                writer.close();
            } catch (IOException e1) {
                // ignore
            }
    }
}

public static void joinStackTrace(Throwable e, StringWriter writer) {
    PrintWriter printer = null;
    try {
        printer = new PrintWriter(writer);

        while (e != null) {

            printer.println(e);
            StackTraceElement[] trace = e.getStackTrace();
            for (int i = 0; i < trace.length; i++)
                printer.println("\tat " + trace[i]);

            e = e.getCause();
            if (e != null)
                printer.println("Caused by:\r\n");
        }
    }
    finally {
        if (printer != null)
            printer.close();
    }
}