Chapter 14. Programming for the Web

When you think about the Web, you probably think of applicationsweb browsers, web serversand the many kinds of content that those applications move around the network. But it's important to note that standards and protocols, not the applications themselves, have enabled the Web's growth. Since the earliest days of the Internet, there have been ways to move files from here to there, and document formats that were just as powerful as HTML, but there was not a unifying model for how to identify, retrieve, and display information nor was there a universal way for applications to interact with that data over the network. Since the web explosion began, HTML has reigned supreme as a common format for documents, and most developers have at least some familiarity with it. In this chapter, we're going to talk a bit about its cousin, HTTP, the protocol that handles communications between web clients and servers, and URLs, which provide a standard for naming and addressing objects on the Web. Java provides a very simple API for working with URLs to address objects on the Web. We'll discuss how to write web clients that can interact with the servers using the HTTP GET and POST methods and also say a bit about web services, which are the next step up the evolutionary chain. In Chapter 15, we'll jump over to the server side and take a look at servlets, Java programs that run on web servers and implement the other side of these conversations.

    Learning Java
    Learning Java
    ISBN: 0596008732
    EAN: 2147483647
    Year: 2005
    Pages: 262

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