Exception信息转换为字符串，或者直接将使用Log4j进行异常记录

//运行时异常
            exception.printStackTrace();
            StringWriter s = new StringWriter();
            PrintWriter printWriter = new PrintWriter(s);
            exception.printStackTrace(printWriter);

            msString  = s.toString();

//Log4j写出异常日志
        Logger l = Logger.getLogger(GlobExceptionResolver.class);

    //  l.error(msString);

       l.error("全局异常捕获",exception);