Implementation idea and code of controlling parent page refresh by iframe in HTML


1、 Application scenarios

Parent page a.jsp
Sub page b.jsp, as the page pointed by the iframe embedded in page a

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The code is as follows:

<iframe src=”b.jsp” …/>

Now we do an operation in the B page. After the operation, we need to refresh the iframe embedded in the a page

2、 Ideas

Find page a in page B, then find the iframe in page a, and assign the SRC attribute of the iframe again.

3、 Implementation

In b.jsp

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The code is as follows:

function refresh(){
var frame = window.parent.document.getElementById(“frame”);
var path = frame.getAttribute(“src”);
frame.setAttribute(“src”, path);

This only refreshes the frame and the effect of local refresh.