解决表单post,get到springMVC后台乱码的问题

@RequestMapping("/tradePortal/ReceiveCommands") public ModelAndView receiveCommands(HttpServletRequest request, HttpServletResponse response){} 

public static Map<String,String> getParamters(HttpServletRequest request){    logger.info("开始获取请求参数");    Map<?,?> paramterMap = request.getParameterMap();    Map<String ,String> paraMap = new ConcurrentHashMap<String, String>();    for (Map.Entry entry :        paramterMap.entrySet()) {      if (Array.getLength(entry.getValue())<1||StringUtil.isEmpty(((String)(Array.get(entry.getValue(),0))))){        paraMap.put((String)entry.getKey(),null);      }else {        if (request.getMethod().equalsIgnoreCase("get")){          try {            paraMap.put((String)entry.getKey(),new String(((String)(Array.get(entry.getValue(),0))).getBytes("ISO-8859-1"),"utf-8"));          } catch (UnsupportedEncodingException e) {            e.printStackTrace();          }        }else {          paraMap.put((String)entry.getKey(),(String)(Array.get(entry.getValue(),0)));        }      }    }    logger.info("参数获取完毕。参数为："+ JSON.toJSONString(paraMap));    return paraMap;  }