日期:2014-05-17  浏览次数:20802 次

无刷新自动弹出页面
请问如何在ASP页面中,实现当数据库一有新的消息时,客户端就无须刷新页面,自动弹出消息提示页面。

------解决方案--------------------
用ajax,定时向服务器端查询数据是否更新
------解决方案--------------------
客户端必须定时请求服务器端;
asp不能创建SOCKET;

------解决方案--------------------
ajax 可以实现。。。但前提是客户必须打开你的网站。
------解决方案--------------------
asp+ajax技术 很简单啊 网上有资料
------解决方案--------------------
就像这样的效果吧
原文出处:http://blog.csdn.net/guyongqing52/article/details/6849678
代码:
//-------------------------------------------
关于在右下脚弹出窗口javascript代码,并用ASP.NET在后台调用(原创)

/*
 构造函数,来初始化相应的属性
*/
function PopBubble(caption,content,see){

this.content = content;
this.caption= caption;
this.see= see;
this.width= 150;
this.height = 120;
this.timeout= 150;
this.speed = 15;
this.step = 2;
this.right = screen.width -1;
this.bottom = screen.height;
this.left = this.right - this.width;
this.top= this.bottom - this.height;
this.timer = 0; 
this.pause = false;
this.close = false;
this.autoHide = true;
}
  
/*
退宿弹出窗口的方法
 */
PopBubble.prototype.hide = function(){

 

var offset = this.height>this.bottom-this.top?this.height:this.bottom-this.top;
var obj = this;
 
if(this.timer>0){
window.clearInterval(obj.timer);
}
 
var fun = function(){
if(obj.pause==false||obj.close){
var x = obj.left; 
var y = 0; 
var width = obj.width; 
var height = 0; 

if(obj.offset>0){ 
height = obj.offset; 

y = obj.bottom - height; 
if(y>=obj.bottom){ 
window.clearInterval(obj.timer);
obj.Pop.hide();
} else { 
obj.offset = obj.offset - obj.step;

obj.Pop.show(x,y,width,height);
}
}
 
this.timer = window.setInterval(fun,this.speed)



  


}
 
/* 
实现查看超链接
 
 */
PopBubble.prototype.oncommand = function(){

 window.parent.mainFrame.location.href="notReaderMessage.aspx"; 
this.close = true;
this.hide();
}
  
/*
显示窗口中的div并弹出窗口方法 
 */
PopBubble.prototype.show = function(){


var oPopup = window.createPopup();
this.Pop = oPopup;
var w = this.width;
var h = this.height;
  
var str = "<DIV style='BORDER-RIGHT: #455690 1px solid; BORDER-TOP: #a6b4cf 1px solid; Z-INDEX: 99999; LEFT: 0px; BORDER-LEFT: #a6b4cf 1px solid; WIDTH: " + w + "px; BORDER-BOTTOM: #455690 1px solid; POSITION: absolute; TOP: 0px; HEIGHT: " + h + "px; BACKGROUND-COLOR: #DAED9B'>"
str += "<TABLE style='BORDER-TOP: #ffffff 1px solid; BORDER-LEFT: #ffffff 1px solid' cellSpacing=0 cellPadding=0 width='100%' bgColor=#EEF7CC border=0>" 
str += "<TR>"
str += "<TD style='FONT-SIZE: 12px;COLOR: #0f2c8c' width=30 height=24></TD>"