This article introduces several methods to refresh the current page using js, including reload method, replace method, automatic refresh method, etc. Friends in need can refer to it
How to refresh the current page? With js you can do anything.
1, reload method, this method forces the browser to refresh the current page.
Syntax: location.reload([bForceGet])
Parameters: bForceGet, optional parameter, default is false, retrieve the current page from the client cache. true, then use GET method to get the latest page from the server, which is equivalent to the client clicking F5 ("Refresh")
2, replace method, which replaces the current cache in the history by specifying the URL (client-side) project, so after using the replace method, you cannot access the replaced URL through "forward" and "back".
Syntax: location.replace(URL)
Usually use: location.reload() or history.go(0) to do it.
This method is similar to the client point F5 to refresh the page, so when the page method="post", a "webpage expired" prompt will appear.
Because of the security protection mechanism of Session.
When the location.reload() method is called, the aspx page already exists in the server memory, so it must be IsPostback.
If there is such an application: The page needs to be reloaded, which means that the page is expected to be re-created on the server side, and the expectation is Not IsPostback.
Here, location.replace() can complete this task. The replaced page is regenerated on the server every time.
Code: location.replace(location.href);
Return and refresh the page:
location.replace(document.referrer);
document .referrer //The URL of the previous page
Do not use history.go(-1), or history.back(); to return and refresh the page. These two methods will not refresh the page.
Attachment:
Several ways to refresh the page using Javascript:
Copy code The code is as follows :
1，history.go(0) 2，location.reload() 3，location=location 4，location.assign(location) 5，document.execCommand('Refresh') 6，window.navigate(location) 7，location.replace(location) 8，document.URL=location.href
How to automatically refresh the page:
1, the page automatically refreshes: add the following code to the area
Copy code The code is as follows:
<meta http-equiv="refresh" content="20">
The 20 refers to refreshing the page every 20 seconds.
2, the page automatically jumps: add the following code In the area
##Copy code The code is as follows:
<meta http-equiv="refresh" content="20;url=http://www.jb51.net">The 20 refers to jumping after 20 seconds Go to http://www.jb51.net page
3, the page will automatically refresh the js version
Copy code The code is as follows:
<script language="JavaScript">
function myrefresh()
{
window.location.reload();
}
setTimeout('myrefresh()',1000); //指定1秒刷新一次
</script>4, JS refresh frame script statement
Copy code The code is as follows :
//刷新包含該框架的頁面用
<script language=JavaScript>
parent.location.reload();
</script>
//子窗口刷新父窗口
<script language=JavaScript>
self.opener.location.reload();
</script>
( 或 <a href="javascript:opener.location.reload()">刷新</a> )
//刷新另一個框架的頁面用
<script language=JavaScript>
parent.另一FrameID.location.reload();
</script>If you want to refresh when the window is closed or you want to refresh when the window is opened, just call the following statement in . Copy code The code is as follows:
<body onload="opener.location.reload()"> 開窗時刷新 <body onUnload="opener.location.reload()"> 關閉時刷新 <script language="javascript"> window.opener.document.location.reload() </script>
First, let’s look at a simple example:
The following takes three pages named frame.html, top.html, and bottom.html as an example to explain how to do it.
frame.html consists of two pages: top (top.html) and bottom (bottom.html). The code is as follows:
The code is as follows: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> frame </TITLE>
</HEAD>
<frameset rows="50%,50%">
<frame name=top src="top.html">
<frame name=bottom src="bottom.html">
</frameset>
</HTML>
top.html page is as follows:
The code is as follows:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> top.html </TITLE>
</HEAD>
<BODY>
<input type=button value="刷新1" onclick="window.parent.frames[1].location.reload()"><br>
<input type=button value="刷新2" onclick="window.parent.frames.bottom.location.reload()"><br>
<input type=button value="刷新3" onclick="window.parent.frames['bottom'].location.reload()"><br>
<input type=button value="刷新4" onclick="window.parent.frames.item(1).location.reload()"><br>
<input type=button value="刷新5" onclick="window.parent.frames.item('bottom').location.reload()"><br>
<input type=button value="刷新6" onclick="window.parent.bottom.location.reload()"><br>
<input type=button value="刷新7" onclick="window.parent['bottom'].location.reload()"><br>
</BODY>
</HTML>
The code is as follows:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> bottom.html </TITLE>
</HEAD>
<BODY onload="alert('我被加載了！')">
<h1>This is the content in bottom.html.</h1>
</BODY>
</HTML>
code show as below:
1.window指代的是當前頁面，例如對于此例它指的是top.html頁面。
2.parent指的是當前頁面的父頁面，也就是包含它的框架頁面。例如對于此例它指的是framedemo.html。
3.frames是window對象，是一個數(shù)組。代表著該框架內所有子頁面。
4.item是方法。返回數(shù)組里面的元素。
5.如果子頁面也是個框架頁面，里面還是其它的子頁面，那么上面的有些方法可能不行。
附：
Javascript刷新頁面的幾種方法：
1 history.go(0)
2 location.reload()
3 location=location
4 location.assign(location)
5 document.execCommand('Refresh')
6 window.navigate(location)
7 location.replace(location)
8 document.URL=location.href
二、自動刷新頁面
1.頁面自動刷新：把如下代碼加入
<meta http-equiv="refresh" content="20">
其中20指每隔20秒刷新一次頁面.
2.頁面自動跳轉：把如下代碼加入區(qū)域中
<meta http-equiv="refresh" content="20;url=http://www.jb51.net">
其中20指隔20秒后跳轉到http://www.jb51.net頁面
3.頁面自動刷新js版
[Ctrl+A 全選 注:如需引入外部Js需刷新才能執(zhí)行]
三、java在寫Servler,Action等程序時，要操作返回頁面的話（如談出了窗口，操作完成以后，關閉當前頁面，刷新父頁面）
復制代碼 代碼如下:
1 PrintWriter out = response.getWriter();
2 out.write("<script type=\"text/javascript\">");
3 ////子窗口刷新父窗口
4 out.write("self.opener.location.reload();");
5 //關閉窗口
6 out.write("window.opener=null;");
7 out.write("window.close();");
8 out.write("</script>");四、JS刷新框架的腳本語句
1.如何刷新包含該框架的頁面用
復制代碼 代碼如下:
<script language=JavaScript> parent.location.reload(); </script>
2.子窗口刷新父窗口
復制代碼 代碼如下:
<script language=JavaScript> self.opener.location.reload(); </script>
3.如何刷新另一個框架的頁面用 （上面的實例以說明了）
復制代碼 代碼如下:
語句1. window.parent.frames[1].location.reload(); 語句2. window.parent.frames.bottom.location.reload(); 語句3. window.parent.frames["bottom"].location.reload(); 語句4. window.parent.frames.item(1).location.reload(); 語句5. window.parent.frames.item('bottom').location.reload(); 語句6. window.parent.bottom.location.reload(); 語句7. window.parent['bottom'].location.reload();
4.如果想關閉窗口時刷新或者想開窗時刷新的話，在
中調用以下語句即可。<body onload="opener.location.reload()"> 開窗時刷新 <body onUnload="opener.location.reload()"> 關閉時刷新
復制代碼 代碼如下:
<script language="javascript"> window.opener.document.location.reload() </script>
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