XML by Example

If you are not familiar with this style of programming, it is important to

remember that the servlet is invoked to answer a request from the browser.

The servlet must collect all the information from the browser and prepare

an HTML page with the result.

1. The servlet can access parameters sent by the browser through the

HttpRequest object. For example, the method getParameter() returns

the value of a form field:

String word = request.getParameter(“word”);

2. To generate an answer, the servlet uses the HttpResponse object. In the

following example, the servlet sets the MIME type of the result to

text/html (meaning HTML) and it starts printing the page ...