获取异常信息

    //获取异常原因详情
    public static String getExceptionInfo(Exception ex){
        String sOut = ex.toString()+ "\r\n";
        StackTraceElement[] trace = ex.getStackTrace();
        for (StackTraceElement s : trace) {
            sOut += "\tat " + s + "\r\n";
        }
        return sOut;
    }