springmvc获取get参数，并端传值到前端html

@RequestMapping(value = "/", method = RequestMethod.GET)  public String viewdata(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException {  

  //获取url参数  String url = request.getQueryString();

  //指定解码格式utf-8  url = java.net.URLDecoder.decode(url, "UTF-8");

  //根据参数拆分成数组  String[] str = url.split("=");    List<Object> st_v = service.queryAllView();  List<Object> st = service.queryByName(str[1]);  

  //写入前端  request.setAttribute("st_v", st_v);  request.setAttribute("st", st);    return "view/viewdata";  }