Summary of jsp page jumping methods

1. <a href="xxxx.jsp" >Click me! </a>---- There is nothing to say about modifying href

2.response.setHeader("refresh","2;URL=otherPage");-----After 2s, the page jumps to the url

3.response.sendRedirect(url)-----Redirect to the specified URL 

　　If the above three parameters need to be passed, should they be added to the url? pass parameters

4. <jsp:forward page="url"> --- server jump (forward)

　　<jsp:param name="username" value="admin" />

　</jsp:forward>　

　　

　　Note: Ajax means partial page refresh, and its background receiving and processing data cannot directly jump to the page.