CHAPTER 2Web Communications

It is true that I may not findAn opportunity of transmitting it to the world,But I will not fail to make the endeavor.At the last moment I will enclose the MS. in a bottleAnd cast it within the sea.

—Edgar Allan Poe (1809–1849), MS. Found in a Bottle

Now that you have a basic understanding about the J2EE web environment and web technologies, it is appropriate to introduce how communication is accomplished to and from the web server. Most of the details of this communication are hidden from users. In most situations, these details are also hidden from developers. However, knowing the capabilities and mechanics of the communications to and from the browser will serve you well while you develop and debug web applications. ...

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