Home About Us Contact Us. This interface is currently deprecated since Servlet API 2. Data Mining. Servlets supposed to be able to handle concurrent request, but it doesnt seem to be doing it. SingleThreadModel ensures that servlet handle only one request at a time. How To make single thread model. HttpServletRequest; import javax. As far as I know Java Servlets are handling multiple requests concurrently and I've searched through StackOverflow as well as Google, and confirmed what I thought. Every time a new instance of servlet is created for each client request.
If a servlet implements this interface, you are guaranteed that no two threads will execute concurrently in the servlet's service method. The servlet container can make this guarantee by synchronizing access to a single instance of the servlet, or by maintaining a pool of servlet instances and dispatching each new request to a free servlet. Note that SingleThreadModel does not solve all thread safety issues. For example, session attributes and static variables can still be accessed by multiple requests on multiple threads at the same time, even when SingleThreadModel servlets are used. It is recommended that a developer take other means to resolve those issues instead of implementing this interface, such as avoiding the usage of an instance variable or synchronizing the block of the code accessing those resources. This interface is deprecated in Servlet API version 2. All Rights Reserved. Use is subject to license terms. Skip navigation links. Ensures that servlets handle only one request at a time. This interface has no methods.
Normally, the servlet is multi-thread if you don't change default configuration about the worker thread size https://handskills.xyz/cat5/datingsite-voor-buitenlandse-mannen.php the servlet container. In your case,according to the result in your description,i think the obj is a shared variable,like class variable,instance singlethreadmodel in servlet and so on.
So you have a mistake,your should not synchronized on singlsthreadmodel obj1 instance,because this will make it to be sequential. As far as I know Java Servlets are handling multiple requests concurrently and I've searched through StackOverflow as well as Google, and confirmed what I thought.
Servlst I am quite confused right now, Click to see more wrote a simple sedvlet that seem to show blocking behaviour. And the result is the first request blocking the 2nd one. The log also shows:. I feel like I am missing something Servlets supposed to be able to handle concurrent request, but it doesnt seem to be doing it.
I also did the same as above on the service method instead of doGet and it does the same thing. Your browser is apparently using the same HTTP connection in different windows. You should run two physically different webbrowsers to test this properly. Servlet seems to handle multiple learn more here browser singlethreadmodel in servlet synchronously 4 Normally, the servlet is multi-thread if you don't change default configuration about the worker thread size in the servlet container.
You can change your test case like: System. Any pointers? Servlet seems to handle multiple concurrent browser requests synchronously Your browser is apparently using the same HTTP connection in different windows. How to use java.