HTTP response status code 302 Found, also previously known as “Moved Temporarily", is returned by the server to indicate that the client redirects to a new location specified within the Location HTTP header, because HTTP response is temporary it is expected to be revalidated upon the next time the URI is requested.
When the 302 Found status code is received, the client will understand that the requested resource has temporarily moved to a new location. As such, it can make a second HTTP request to fetch the resource to continue processing the original HTTP request. This is somewhat simpler than a 301 Moved Permanently status code because the client is not expected to take action such as updating internal links.
For backward compatibility, the client may change the HTTP request method from POST to GET for the subsequent HTTP request. However, this is not recommended. To remove ambiguity, the server can return an alternative status code. The 303 See Other status code indicates that the HTTP request must change to a HTTP GET method, whereas the 307 Temporary Redirect status code stipulates that the HTTP request method has to be preserved for the subsequent HTTP request.
In the example, the client requests a resource that has been temporarily moved. The server indicates the new location and supplies a relevant message that can be displayed on the client-side.
GET /news.html HTTP/1.1
HTTP/1.1 302 Found
<h1>The Newsfeed has moved</h1>
The site is currently under development and the newsfeed has temporarily moved to <a href=/testing/news.html>here</a>.
Apache HttpComponents Core
The 302 Found status code indicates that the requested resource has been temporarily moved and that a second, otherwise identical HTTP request has to be made to fetch the resource. As the requested resource has moved temporarily, the URI has to be revalidated upon the next time the resource is requested.