request获取请求参数

        /**
         * 方式1
         */
        Enumeration<?> enu=request.getParameterNames();
        while(enu.hasMoreElements()){
            String paraName=(String)enu.nextElement();
            System.out.println(paraName+": "+request.getParameter(paraName));
        }
        /**
         * 方式2
         */
        Map<String,String[]> map = request.getParameterMap();
        for (Map.Entry<String, String[]> entry : map.entrySet()) {
            String kv = entry.getKey() + ":"+Arrays.toString(entry.getValue())+";";
            System.out.println("kv:"+kv);
        }