Javascript 显示加载,直到页面完全加载
我有一个javascript:Javascript 显示加载,直到页面完全加载,javascript,ajax,Javascript,Ajax,我有一个javascript: function createRequestObject(){ var req; if(window.XMLHttpRequest){ //For Firefox, Safari, Opera req = new XMLHttpRequest(); } else if(window.ActiveXObject){ //For IE 5+ req = new Active
function createRequestObject(){
var req;
if(window.XMLHttpRequest){
//For Firefox, Safari, Opera
req = new XMLHttpRequest();
}
else if(window.ActiveXObject){
//For IE 5+
req = new ActiveXObject("Microsoft.XMLHTTP");
}
else{
//Error for an old browser
alert('Your browser is not IE 5 or higher, or Firefox or Safari or Opera');
}
//alert (req);
return req;
}
//Make the XMLHttpRequest Object
var http = createRequestObject();
function sendRequestTwo(method, url, head1){
head = head1
if(method == "get" || method == "GET"){
http.open(method,url);
http.onreadystatechange = handleResponseTwo;
http.send(null);
}
}
var head; //divs name
function handleResponseTwo(){
if(http.readyState == 4 && http.status == 200){
var response = http.responseText;
if(response){
document.getElementById(head).innerHTML = response;
}
}
}
这部分
document.getElementById(head).innerHTML = response;
将结果粘贴回我的页面。
如何在页面完全加载之前显示“加载”?我不知道HTML的详细信息,但您不能将加载放在带有
id=“head”
的标记中吗
然后,当您更新innerHTML时,加载将自动被替换。如果您有更多的要求,请描述。我不知道您的HTML的详细信息,但是您不能将加载放在带有
id=“head”
的标记中吗
然后,当您更新innerHTML时,加载将自动被替换。如果您有更多要求,请描述。您可以在
sendRequestTwo
时将加载打印到Head div中。您可以在sendRequestTwo
时将加载打印到Head div中,在body中加载Html怎么样
<div id="loadingDiv" class="hiddenClass">Fancy rotating image goes here</div>
然后
document.getElementById(head).innerHTML = response;
加
全部
function createRequestObject(){
var req;
if(window.XMLHttpRequest){
//For Firefox, Safari, Opera
req = new XMLHttpRequest();
}
else if(window.ActiveXObject){
//For IE 5+
req = new ActiveXObject("Microsoft.XMLHTTP");
}
else{
//Error for an old browser
alert('Your browser is not IE 5 or higher, or Firefox or Safari or Opera');
}
//alert (req);
return req;
}
//Make the XMLHttpRequest Object
var http = createRequestObject();
function sendRequestTwo(method, url, head1){
head = head1
if(method == "get" || method == "GET"){
var myDiv = document.getElementById('loadingDiv');
myDiv.className = "showClass";
http.open(method,url);
http.onreadystatechange = handleResponseTwo;
http.send(null);
}
}
var head; //divs name
function handleResponseTwo(){
if(http.readyState == 4 && http.status == 200){
var response = http.responseText;
if(response){
document.getElementById(head).innerHTML = response;
var myDiv = document.getElementById('loadingDiv');
myDiv.className = "hiddenClass";
}
}
}
在主体中加载Html时使用Div怎么样
<div id="loadingDiv" class="hiddenClass">Fancy rotating image goes here</div>
然后
document.getElementById(head).innerHTML = response;
加
全部
function createRequestObject(){
var req;
if(window.XMLHttpRequest){
//For Firefox, Safari, Opera
req = new XMLHttpRequest();
}
else if(window.ActiveXObject){
//For IE 5+
req = new ActiveXObject("Microsoft.XMLHTTP");
}
else{
//Error for an old browser
alert('Your browser is not IE 5 or higher, or Firefox or Safari or Opera');
}
//alert (req);
return req;
}
//Make the XMLHttpRequest Object
var http = createRequestObject();
function sendRequestTwo(method, url, head1){
head = head1
if(method == "get" || method == "GET"){
var myDiv = document.getElementById('loadingDiv');
myDiv.className = "showClass";
http.open(method,url);
http.onreadystatechange = handleResponseTwo;
http.send(null);
}
}
var head; //divs name
function handleResponseTwo(){
if(http.readyState == 4 && http.status == 200){
var response = http.responseText;
if(response){
document.getElementById(head).innerHTML = response;
var myDiv = document.getElementById('loadingDiv');
myDiv.className = "hiddenClass";
}
}
}
基本上就是这样做的,但是
响应
需要时间来加载;如何检查它是否已完全加载?要查看是否加载了response
,只需检查http.readyState==4
。但我想你说的是别的。在response
HTML中是否还有其他东西需要加载,比如图像?这差不多就是这样做的,但是response
加载需要时间;如何检查它是否已完全加载?要查看是否加载了response
,只需检查http.readyState==4
。但我想你说的是别的。在response
HTML中是否还需要加载其他类似图像的内容?您应该确保正确返回了Ajax响应。如果是这样,语句“document.getElementById(head).innerHTML=response”将替换“loading”的内容。您应该确保正确返回Ajax响应。如果是这样,语句“document.getElementById(head).innerHTML=response”将替换“loading”的内容