JSP refreshing upload

A common method for uploading files (in fact, not only uploading files, but all form submissions are acceptable) is to define a hidden iframe with a width and a height of 0 on the current page, then point the address submitted by form to this IFRAME, and write a <SCRIPT> parent after the server completes processing. callback (); </SCRIPT> to call the Script Function of the parent window.

In this case, the contenttype returned by the server must be set to text/html, not text/JavaScript, previously, in the Code, set the returned contenttype to text/JavaScript. In the returned page, the <script/> label is enclosed by a <PRE> </PRE> label. After suffering from this problem for a few days, I did not expect it to be caused by the contenttype problem. Thank you for choosing http://bbs.csdn.net/topics/320020840.