Menu
Why does HttpServletRequest.getRemoteAddr() return null sometimes? For approximately 2 out of 10 identical requests is returns null for no apparent reason.
879
The HttpServletRequest provides methods for accessing parameters of a request. The type of the request determines where the parameters come from. In most implementations, a GET request takes the parameters from the query string, while a POST request takes the parameters from the posted arguments.
The HttpServletRequest object can be used to retrieve incoming HTTP request headers and form data. The HttpServletResponse object can be used to set the HTTP response headers (e.g., content-type) and the response message body.
Extends the ServletRequest interface to provide request information for HTTP servlets. The servlet container creates an HttpServletRequest object and passes it as an argument to the servlet's service methods ( doGet , doPost , etc). String identifier for Basic authentication.
ServletRequest provides basic setter and getter methods for requesting a Servlet, but it doesn't specify how to communicate. HttpServletRequest extends the Interface with getters for HTTP-communication (which is of course the most common way for communicating since Servlets mostly generate HTML).
Using Tomcat7. Apparently getRemoteAddr() can return NULL if the request has already been consumed, i.e. a response has been sent. It can even throw NPE sometimes. An error in my code in any case.
61
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
