window.opener 的用法

??????? 在一般的用法中，只是用來解決關閉窗口時不提示彈出窗口， 而對它更深層的了解一般比較少。其實 window.opener是指調用window.open方法的窗口。?
??????? 在工作中主要是用來解決部分提交的。這種跨頁操作對工作是非常有幫助的。?
??????? 如果你在主窗口打開了一個頁面，并且希望主窗口刷新就用這個，打開頁面的window.opener就相當于
主窗口的window。?
??????? 主窗口的刷新你可以用 window.opener.location.reload()；?
??????? 如果你用虛擬的目錄：如struts的*.do會提示你重試

??????? 你可以改成這樣 window.opener.yourformname.submit() 就好了

??????? 在應用中有這樣一個情況，?
??????? 在A窗口中打開B窗口，在B窗口中操作完以后關閉B窗口，同時自動刷新A窗口

??????? function closeWin()
??????? {?
??????????????? hasClosed = true;?
??????????????? window.opener.location="javascript:reloadPage();";?
??????????????? window.close();?
??????? }?
??????? function window.onbeforeunload()
??????? {?
??????????????? if(!hasClosed)
??????????????? {?
??????????????????????? window.opener.location="javascript:reloadPage();";?
??????????????? }?
??????? }
??????? 上面的代碼在關閉B窗口的時候會提示錯誤，說缺少Object,正確的代碼如下：?
??????? function closeWin()
??????? {?
??????????????? hasClosed = true;?
??????????????? window.opener.location="javascript:reloadPage();";?
??????????????? window.opener=null;?
??????????????? window.close();?
??????? }?
??????? function window.onbeforeunload()
??????? {?
??????????????? if(!hasClosed){//如果已經執行了closeWin方法，則不執行本方法?
??????????????????????? window.opener.location="javascript:reloadPage();";?
??????????????? }?
??????? }

??????? reloadPage方法如下:?
??????? function reloadPage()?
????????{?
??????????????? history.go(0);?
??????????????? document.execCommand("refresh")?
??????????????? document.location = document.location;?
??????????????? document.location.reload();
??????? }
PS:由于需要支持正常關閉和強制關閉窗口時能捕捉到事件，用了全局變量hasClosed

==============================================

補充，在父窗口是frame的時候在刷新父窗口的時候會出現問題:

The page cannot be refreshed without resending the information.
后修改如下:
window.opener.parent.document.frames.item('mainFrame').location.href = window.opener.location.href;
不需要執行自帶的reload()方法,注意，不要再畫蛇添足加上這一句:

window.opener.parent.document.frames.item('mainFrame').location.reload();

========================================================================================
最后，為了同時支持刷新普通父窗口和frame父窗口，代碼如下:?
??????? function closeWin()
??????? {?
??????????????? hasClosed = true;?
??????????????? <%if(null != frame){%>?
??????????????? window.opener.parent.document.frames.item('mainFrame').location.href =??????? window.opener.location.href;?
??????????????? <%}else{%>?
??????????????? window.opener.location = "javascript:reloadPage();";?
??????????????? <%}%>?
??????????????? //window.opener.top.mainFrame.location="javascript:reloadPage();";?
??????????????? //self.opener.frames.mainFrame.location.reload(true);?
??????????????? window.opener = null;?
??????????????? window.close();
??????? }
??????? function window.onbeforeunload()
??????? {?
??????????????? if (!hasClosed) {?
??????????????? <%if(null != frame){%>?
??????????????? window.opener.parent.document.frames.item('mainFrame').location.href = window.opener.location.href;?
??????????????? <%}else{%>?
??????????????? window.opener.location = "javascript:reloadPage();";?
??????????????? <%}%>?
??????????????? window.opener = null;?
??????????????? }
??????? }
?
?

轉載于:https://www.cnblogs.com/libran/archive/2007/12/10/2243164.html

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