Java EE 8 Application Development

Asynchronous processing

Traditionally, servlets have created a single thread per request in Java web applications. After a request is processed, the thread is made available for other requests to use. This model works fairly well for traditional web applications, for which HTTP requests are relatively few and far between. However, most modern web applications take advantage of Ajax (Asynchronous JavaScript and XML), a technique that makes web applications behave much more responsively than traditional web applications. Ajax has the side effect of generating a lot more HTTP requests than traditional web applications, if some of these threads block for a long time waiting for a resource to be ready, or do anything that takes a long time to ...