dedeajax2.js

这是matlab的一个小程序

<!--
//xmlhttp和xmldom对象
var DedeXHTTP = null;
var DedeXDOM = null;
var DedeContainer = null;
var DedeShowError = false;
var DedeShowWait = false;
var DedeErrCon = "";
var DedeErrDisplay = "下载数据失败";
var DedeWaitDisplay = "正在下载数据...";

//获取指定ID的元素

function $DE(id) {
	return document.getElementById(id);
}

//gcontainer 是保存下载完成的内容的容器
//mShowError 是否提示错误信息
//DedeShowWait 是否提示等待信息
//mErrCon 服务器返回什么字符串视为错误
//mErrDisplay 发生错误时显示的信息
//mWaitDisplay 等待时提示信息
//默认调用 DedeAjax('divid',false,false,'','','')

function DedeAjax(gcontainer,mShowError,mShowWait,mErrCon,mErrDisplay,mWaitDisplay)
{

	DedeContainer = gcontainer;
	DedeShowError = mShowError;
	DedeShowWait = mShowWait;
	if(mErrCon!="") DedeErrCon = mErrCon;
	if(mErrDisplay!="") DedeErrDisplay = mErrDisplay;
	if(mErrDisplay=="x") DedeErrDisplay = "";
	if(mWaitDisplay!="") DedeWaitDisplay = mWaitDisplay;


	//post或get发送数据的键值对
	this.keys = Array();
	this.values = Array();
	this.keyCount = -1;

	//http请求头
	this.rkeys = Array();
	this.rvalues = Array();
	this.rkeyCount = -1;

	//请求头类型
	this.rtype = 'text';

	//初始化xmlhttp
	//IE6、IE5
	if(window.ActiveXObject) {
		try { DedeXHTTP = new ActiveXObject("Msxml2.XMLHTTP");} catch (e) { }
		if (DedeXHTTP == null) try { DedeXHTTP = new ActiveXObject("Microsoft.XMLHTTP");} catch (e) { }
	}
	else {
		DedeXHTTP = new XMLHttpRequest();
	}

	//增加一个POST或GET键值对
	this.AddKey = function(skey,svalue) {
		this.keyCount++;
		this.keys[this.keyCount] = skey;
		svalue = svalue.replace(/\+/g,'$#$');
		this.values[this.keyCount] = escape(svalue);
	};

	//增加一个POST或GET键值对
	this.AddKeyUtf8 = function(skey,svalue) {
		this.keyCount++;
		this.keys[this.keyCount] = skey;
		svalue = svalue.replace(/\+/g,'$#$');
		this.values[this.keyCount] = encodeURI(svalue);
	};

	//增加一个Http请求头键值对
	this.AddHead = function(skey,svalue) {
		this.rkeyCount++;
		this.rkeys[this.rkeyCount] = skey;
		this.rvalues[this.rkeyCount] = svalue;
	};

	//清除当前对象的哈希表参数
	this.ClearSet = function() {
		this.keyCount = -1;
		this.keys = Array();
		this.values = Array();
		this.rkeyCount = -1;
		this.rkeys = Array();
		this.rvalues = Array();
	};


	DedeXHTTP.onreadystatechange = function() {
		//在IE6中不管阻断或异步模式都会执行这个事件的
		if(DedeXHTTP.readyState == 4){
			if(DedeXHTTP.status == 200)
			{
				if(DedeXHTTP.responseText!=DedeErrCon) {
					DedeContainer.innerHTML = DedeXHTTP.responseText;
				}
				else {
					if(DedeShowError) DedeContainer.innerHTML = DedeErrDisplay;
				}
				DedeXHTTP = null;
			}
			else { if(DedeShowError) DedeContainer.innerHTML = DedeErrDisplay; }
		}
		else { if(DedeShowWait) DedeContainer.innerHTML = DedeWaitDisplay; }
	};

	//检测阻断模式的状态
	this.BarrageStat = function() {
		if(DedeXHTTP==null) return;
		if(typeof(DedeXHTTP.status)!=undefined && DedeXHTTP.status == 200)
		{
			if(DedeXHTTP.responseText!=DedeErrCon) {
				DedeContainer.innerHTML = DedeXHTTP.responseText;
			}
			else {
				if(DedeShowError) DedeContainer.innerHTML = DedeErrDisplay;
			}
		}
	};

	//发送http请求头
	this.SendHead = function() {
		//发送用户自行设定的请求头
		if(this.rkeyCount!=-1)
		{ 
			for(;i<=this.rkeyCount;i++)
			{
				DedeXHTTP.setRequestHeader(this.rkeys[i],this.rvalues[i]);
			}
		}
		　if(this.rtype=='binary'){
		　DedeXHTTP.setRequestHeader("Content-Type","multipart/form-data");
	}else{
		DedeXHTTP.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	}
};

//用Post方式发送数据
this.SendPost = function(purl) {
	var pdata = "";
	var i=0;
	this.state = 0;
	DedeXHTTP.open("POST", purl, true);
	this.SendHead();
	//post数据
	if(this.keyCount!=-1)
	{
		for(;i<=this.keyCount;i++)
		{
			if(pdata=="") pdata = this.keys[i]+'='+this.values[i];
			else pdata += "&"+this.keys[i]+'='+this.values[i];
		}
	}
	DedeXHTTP.send(pdata);
};

//用GET方式发送数据
this.SendGet = function(purl) {
	var gkey = "";
	var i=0;
	this.state = 0;
	//get参数
	if(this.keyCount!=-1)
	{ 
		for(;i<=this.keyCount;i++)
		{
			if(gkey=="") gkey = this.keys[i]+'='+this.values[i];
			else gkey += "&"+this.keys[i]+'='+this.values[i];
		}
		if(purl.indexOf('?')==-1) purl = purl + '?' + gkey;
		else  purl = purl + '&' + gkey;
	}
	DedeXHTTP.open("GET", purl, true);
	this.SendHead();
	DedeXHTTP.send(null);
};

//用GET方式发送数据，阻塞模式
this.SendGet2 = function(purl) {
	var gkey = "";
	var i=0;
	this.state = 0;
	//get参数
	if(this.keyCount!=-1)
	{ 
		for(;i<=this.keyCount;i++)
		{
			if(gkey=="") gkey = this.keys[i]+'='+this.values[i];
			else gkey += "&"+this.keys[i]+'='+this.values[i];
		}
		if(purl.indexOf('?')==-1) purl = purl + '?' + gkey;
		else  purl = purl + '&' + gkey;
	}
	DedeXHTTP.open("GET", purl, false);
	this.SendHead();
	DedeXHTTP.send(null);
	//firefox中直接检测XHTTP状态
	this.BarrageStat();
};

//用Post方式发送数据
this.SendPost2 = function(purl) {
	var pdata = "";
	var i=0;
	this.state = 0;
	DedeXHTTP.open("POST", purl, false);
	this.SendHead();
	//post数据
	if(this.keyCount!=-1)
	{
		for(;i<=this.keyCount;i++)
		{
			if(pdata=="") pdata = this.keys[i]+'='+this.values[i];
			else pdata += "&"+this.keys[i]+'='+this.values[i];
		}
	}
	DedeXHTTP.send(pdata);
	//firefox中直接检测XHTTP状态
	this.BarrageStat();
};


} // End Class DedeAjax

//初始化xmldom
function InitXDom() {
	if(DedeXDOM!=null) return;
	var obj = null;
	// Gecko、Mozilla、Firefox
	if (typeof(DOMParser) != "undefined") { 
		var parser = new DOMParser();
		obj = parser.parseFromString(xmlText, "text/xml");
	}
	// IE
	else { 
		try { obj = new ActiveXObject("MSXML2.DOMDocument");} catch (e) { }
		if (obj == null) try { obj = new ActiveXObject("Microsoft.XMLDOM"); } catch (e) { }
	}
	DedeXDOM = obj;
};



//读写cookie函数
function GetCookie(c_name)
{
	if (document.cookie.length > 0)
	{
		c_start = document.cookie.indexOf(c_name + "=")
		if (c_start != -1)
		{
			c_start = c_start + c_name.length + 1;
			c_end   = document.cookie.indexOf(";",c_start);
			if (c_end == -1)
			{
				c_end = document.cookie.length;
			}
			return unescape(document.cookie.substring(c_start,c_end));
		}
	}
	return null
}

function SetCookie(c_name,value,expiredays)
{
	var exdate = new Date();
	exdate.setDate(exdate.getDate() + expiredays);
	document.cookie = c_name + "=" +escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString()); //使设置的有效时间正确。增加toGMTString()
}

-->