Java Exception异常信息怎么打印、记录，几种方式自己选

    public static void main(String[] args) throws IOException {
        try {
            int a=10;
            int b=0;
            System.out.println(a/b);
        } catch (Exception e) {
            String exceptionStr = getExceptionStr(e);
            System.out.println(exceptionStr);
        }
    }

    public static String getExceptionStr(Exception e) throws IOException {
        //读取异常栈信息
        ByteArrayOutputStream arrayOutputStream=new ByteArrayOutputStream();
        e.printStackTrace(new PrintStream(arrayOutputStream));
        //通过ByteArray转换输入输出流
        BufferedReader fr=new BufferedReader(new InputStreamReader(new ByteArrayInputStream(arrayOutputStream.toByteArray())));
        String str;
        StringBuilder exceptionStr=new StringBuilder();
        while ((str=fr.readLine())!=null){
            exceptionStr.append(str);
        }
        //关闭流
        fr.close();
        return exceptionStr.toString();
    }