java如何打印完整的堆栈信息呢？

实现思路:
    使用printStackTrace()方法即可打印出堆栈信息

/**
     * 获取完整堆栈信息的方法分享
     *
     * @param e Exception
     * @return Full StackTrace
     */
    public static String getStackTrace(Exception e) {
        StringWriter sw = null;
        PrintWriter pw = null;
        try {
            sw = new StringWriter();
            pw = new PrintWriter(sw);
            e.printStackTrace(pw);
            pw.flush();
            sw.flush();
        } finally {
            if (sw != null) {
                try {
                    sw.close();
                } catch (IOException e1) {
                    e1.printStackTrace();
                }
            }
            if (pw != null) {
                pw.close();
            }
        }
        return sw.toString();
    }