发布于 2017-01-09 13:33:45 | 78 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程,程序狗速度看过来!
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言,主要目的是为了解决服务器端语言,比如Perl,遗留的速度问题,为客户提供更流畅的浏览效果。
<form id="form1" runat="server">
<div>
<input type="text" id="txtSrc" value="http://www.gzsums.edu.cn/webclass/html/html_design.html" style="width: 378px" />
<input id="btnProxy" type="button" value="通过Proxy获取数据" onclick="GetDataFromProxy();" /><br />
<br />
<br />
</div>
<div id="divData"></div>
</form>
</body>
<script language="javascript" type="text/javascript">
function GetDataFromProxy() {
var src = document.getElementById('txtSrc').value;
var request = null;
if (window.XMLHttpRequest) {
request = new XMLHttpRequest();
}
else if (window.ActiveXObject) {
request = new ActiveXObject("Microsoft.XMLHTTP");
}
request.onreadystatechange = function() {
var ready = request.readyState;
var data = null;
{
if (ready == 4) {
data = request.responseText;
document.getElementById('divData').innerHTML = data;
}
else {
document.getElementById('divData').text = "Loading";
}
}
}
var url = "Proxy.ashx?src=" + escape(src);
request.open("get",url,false);
request.send(null);
}
</script>
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;
using System.IO;
using System.Net;
using System.Text;
namespace WebApplication1
{
/// <summary>
/// Summary description for $codebehindclassname$
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class Proxy : IHttpHandler
{
const int BUFFER_SIZE = 8 * 1024;
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
string src = context.Request["src"];
WebRequest wr = WebRequest.Create(src);
WebResponse wres = wr.GetResponse();
Encoding resEncoding = System.Text.Encoding.GetEncoding("gb2312");
StreamReader sr = new StreamReader(wres.GetResponseStream(), resEncoding);
string html = sr.ReadToEnd();
sr.Close();
wres.Close();
context.Response.Write("<br/><br/><br/><br/>");
context.Response.Write(html);
}
public bool IsReusable
{
get
{
return false;
}
}
}
}
<body>
<div>
<input type="text" id="txtSrc" value="http://b.a.com/DomainTest2.htm" style="width: 378px" />
<input id="btnDomain" type="button" value="通过Domain获取数据" onclick="GetDataFromDomain();" /><br />
<br />
<br />
</div>
<div id="divData"></div>
</body>
<script language="javascript" type="text/javascript">
document.domain = 'a.com';
var src = document.getElementById('txtSrc').value;
var ifr = document.createElement('iframe');
ifr.src = src;
ifr.style.display = 'none';
document.body.appendChild(ifr);
function GetDataFromDomain() {
var doc = ifr.contentDocument || ifr.contentWindow.document;
alert(doc.getElementById("data").value);
}
</script>
<body>
<input type="hidden" id="data" value="Cross Domain" style="width: 378px" />
</body>
<script language="javascript" type="text/javascript">
document.domain = 'a.com';
</script>
<head>
<title>Script Test</title>
<script language="javascript" type="text/javascript">
function load_script(callback){
var head = document.getElementsByTagName('head')[0];
var script = document.createElement('script');
var src = document.getElementById('txtSrc').value;
script.type = 'text/javascript';
script.src = src;
//借鉴了jQuery的script跨域方法
script.onload = script.onreadystatechange = function(){
if((!this.readyState||this.readyState === "loaded"||this.readyState === "complete")){
callback && callback();
// Handle memory leak in IE
script.onload = script.onreadystatechange = null;
if ( head && script.parentNode ) {
head.removeChild( script );
}
}
};
// Use insertBefore instead of appendChild to circumvent an IE6 bug.
head.insertBefore( script, head.firstChild );
}
</script>
</head>
<body>
<input type="text" id="txtSrc" value="http://www.b.com/scripttest.aspx" style="width: 378px" />
<input type="button" value="通过动态创建script标签来获取数据" onclick="load_script(function(){alert('动态加载script标签成功')})"/>
</body>
protected void Page_Load(object sender, EventArgs e)
{
Response.Clear();
Response.ContentType = "application/x-javascript";
Response.Write(String.Format(@"alert('{0}');", DateTime.Now));
Response.End();
}
<body>
<div>
<input type="text" id="txtSrc" value="1" style="width: 378px" />
<input id="btnAddHash" type="button" value="添加Hash值" onclick="addHash();" />
<iframe id="ifr1" style="display:none"></iframe>
</div>
</body>
<script language="javascript" type="text/javascript">
function addHash() {
var src = document.getElementById('txtSrc').value;
if (src.length > 0) {
changeHash(src);
}
}
function changeHash(src) {
if (document.getElementById('ifr1')) {
var ifr = document.getElementById('ifr1');
ifr.src = 'http://www.b.com/Test/HashTest2.htm#' + src;
}
else {
var ifr = document.createElement('iframe');
ifr.setAttribute('id', 'ifr1');
ifr.src = 'http://www.b.com/Test/HashTest2.htm#' + src;
ifr.style.display = 'none';
document.body.appendChild(ifr);
}
}
function checkHash() {
if (location.hash && location.hash.length > 1) {
changeHash(location.hash.substring(1));
}
}
setInterval(checkHash, 2000);
</script>
<body>
<iframe id="ifr2" style="display:none"></iframe>
</body>
<script language="javascript" type="text/javascript">
function checkHash() {
if (location.hash && location.hash.length > 1) {
var hashData = location.hash.substring(1);
var ifr = null;
if (document.getElementById('ifr2')) {
ifr = document.getElementById('ifr2');
}
else {
ifr = document.createElement('iframe');
ifr.setAttribute('id', 'ifr2');
ifr.style.display = 'none';
document.body.appendChild(ifr);
}
switch (hashData) {
case '1':
alert('One');
if (ifr) {
ifr.src = 'http://www.a.com/test/HashTest3.htm#2';
}
break;
case '2':
alert('Two');
if (ifr) {
ifr.src = 'http://www.a.com/test/HashTest3.htm#1';
}
break;
default:
break;
}
}
}
setInterval(checkHash, 2000);
</script>
<body></body>
<script language="javascript" type="text/javascript">
function checkHash() {
if (parent && parent.parent && parent.parent.location && self.location.hash.length > 1) {
parent.parent.location.hash = self.location.hash.substring(1);
}
}
setInterval(checkHash, 500);
</script>
<body>
<div>
<input id="btnName" type="button" value="通过window.name获取数据" onclick="getData();" />
<iframe id="ifr1" style="display:none" src="http://www.b.com/Test/NameTest2.htm"></iframe>
</div>
</body>
<script language="javascript" type="text/javascript">
var ischanged = false;
function changeSrc() {
if (document.getElementById('ifr1')) {
var ifr = document.getElementById('ifr1');
if (!ischanged) {
ischanged = true;
ifr.contentWindow.location = 'http://www.a.com/Test/NameTest3.htm';
}
else {
var data = ifr.contentWindow.name;
alert(data);
}
}
else {
var ifr = document.createElement('iframe');
ifr.setAttribute('id', 'ifr1');
ifr.src = 'http://www.b.com/Test/NameTest2.htm';
ifr.style.display = 'none';
document.body.appendChild(ifr);
}
}
function getData() {
setInterval(changeSrc, 2000);
}
</script>
<body></body>
<script language="javascript" type="text/javascript">
window.name = 'NameTest2';
</script>
<body>
<div>
<input id="btnPostMessage" type="button" value="通过PostMessage获取数据" onclick="getData();" />
<iframe id="ifr" style="display:none" src="http://www.b.com/Test/PostMessageTest2.htm"></iframe>
</div>
</body>
<script language="javascript" type="text/javascript">
function getData() {
var ifr = document.getElementById('ifr');
var targetOrigin = 'http://www.b.com';
if (ifr.contentWindow.postMessage) {
ifr.contentWindow.postMessage('PostMessageTest2', targetOrigin);
}
}
</script>
<body></body>
<script language="javascript" type="text/javascript">
window.addEventListener('message', function(event) {
if (event.origin == 'http://www.a.com') {
alert(event.data);
alert(event.source);
}
}, false);
</script>
<body>
<iframe id="ifr" src="http://www.b.com/test/OpenerTest2.htm" style="display:none"></iframe>
</body>
<script language="javascript" type="text/javascript">
var ifr = document.getElementById('ifr');
ifr.contentWindow.opener = { a: function(msg) { alert('我调用了a方法获得了消息:' + msg); } }
</script>
<body>
</body>
<script language="javascript" type="text/javascript">
window.opener.a('aaa');
</script>
<body>
<iframe id="ifr" src="http://www.b.com/test/NavigatorTest2.htm" style="display:none"></iframe>
</body>
<script language="javascript" type="text/javascript">
window.navigator.a = function(msg) { alert('我调用了a方法获得了消息:' + msg); }
window.navigator.b = function(msg) { alert('我调用了b方法获得了消息:' + msg); }
setInterval(function() { window.navigator.c('ccc'); }, 2000);
setInterval(function() { window.navigator.d('ddd'); }, 2000);
</script>
<body>
</body>
<script language="javascript" type="text/javascript">
window.navigator.c = function(msg) { alert('我调用了c方法获得了消息:' + msg); }
window.navigator.d = function(msg) { alert('我调用了d方法获得了消息:' + msg); }
setInterval(function() { window.navigator.a('aaa'); }, 2000);
setInterval(function() { window.navigator.b('bbb'); }, 2000);
</script>