jquery解决浏览器缓存和中文处理(通用ajax)

function verify(){
    //解决中文乱码方法 1,页面端发出数据作一次encodeURI,服务器端使用new String(old.getBytes("iso8859-1"),"utf-8")
    var url = "AJAXServer?name="+encodeURI($("#userName").val());
    //解决中文乱码方法 2,页面端发出两次encodeURI,服务器端使用URLDecoder.decode(old,"UTF-8")
    var url = "AJAXServer?name="+encodeURI(encodeURI($("#userName").val()));
    url = convertURL(url);
    $.get(url,null,function(data){
        $("#result").html(data);
    })
}

//给url地址加时间戳,骗过浏览器,不读取缓存
function convertURL(url){
    //获取时间戳
    var timstamp = (new Date()).valueOf();
    //将时间戳信息拼接到url上
    if(url.indexOf("?")>=0){
        url = url +"&t=" + timstamp;
    }else{
        url = url +"?t=" + timstamp;
    }
    return url;
}

protected void doGet(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException {
        try{
            httpServletResponse.setContentType("text/html;charset=utf-8");
            PrintWriter out = httpServletResponse.getWriter();
            Integer inte = (Integer)httpServletRequest.getSession().getAttribute("total");
            int temp = 0;
            if(inte == null){
                temp = 1;
            }else{
                temp=inte.intValue() + 1;

            }
            httpServletRequest.getSession().setAttribute("total",temp);
            //1.取参数
            String old = httpServletRequest.getParameter("name");
            //String name = new String(old.getBytes("ISO8859-1"),"UTF-8");
            String name = URLDecoder.decode(old,"UTF-8");
            //2.检查参数是否有问题
            if(old == null || old.length() == 0){
                out.println("用户名不能为空");
            }else{
                //3.校验操作
                //String name = old;
                if(name.equals("test")){
                    //4.和传统应用不同之处，这步需要将用户感兴趣的数据反馈给当前页面，而不是展现一个新页面
                    //写法没有变化，本质发生了改变
                    out.println("用户名["+name+"]已经存在,请使用其它用户名,"+temp);
                }else{
                    out.println("用户名["+name+"]尚未存在,可以使用,"+temp);
                }
            }
        }catch(Exception e){
            e.printStackTrace();
        }
    }