2012/1/4 S Ahmed <sahmed1...@gmail.com>: > Say I have a simple servlet or spring mvc application running on tomcat. > > Tomcat is running as a webserver on port 80. > > A client makes a http POST request to my page www.example.com/submit > > If the client adds a very large file with the POST, does this mean that > when my servlet code starts to execute, tomcat already has the entire > request content in memory? (including the very large POST parameter)
1. Tomcat version =? 2. What API are you using to read the file? In general request processing starts after the headers in HTTP request have been read. At that point you can call getInputStream() and read the body of the POST request while it is being received from the client. But if you call certain APIs (e.g. getParameter()) the call will hang until entire POST request body is received from the client and processed. It is said that those methods "consume" the body of a POST request. 3. In most implementations large file uploads are not stored in memory, but are written to a temporary file on your hard drive. (So the request body is processed, but you cannot say that it is "in memory"). --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
