处理postman传参中文乱码问题

private Map<String, Object> getParam(HttpServletRequest request){
        Map<String, String[]> map =  request.getParameterMap();
        Map<String, Object> requestMap = new HashMap();
        for(Map.Entry<String, String[]> entry:map.entrySet()){
            String s = entry.getValue()[0];
            String s1 = null;
            try {
                s1 = new String(s.getBytes("ISO-8859-1"), "UTF-8");
            } catch (UnsupportedEncodingException e) {
                LOGGER.warn("key为{}的参数转码失败，详情：{}",entry.getKey(),e);
            }
            entry.getValue()[0] = s1;
            requestMap.put(entry.getKey(), entry.getValue());
        }
        return requestMap;
    }