By Hans Bergsten
JavaServer Faces, or JSF, brings a component-based version to internet program improvement that is just like the version that is been utilized in standalone GUI purposes for years. The expertise builds at the adventure received from Java Servlets, JavaServer Pages, and various advertisement and open resource net program frameworks that simplify the advance method. In JavaServer Faces, builders methods to use this new framework to construct real-world net purposes. The e-book includes every thing you will want: the best way to build the HTML at the entrance finish; easy methods to create the person interface parts that attach front finish on your enterprise items; how you can write a back-end that is JSF-friendly; and the way to create the deployment descriptors that tie every thing jointly. JavaServer Faces will pay specific realization to uncomplicated projects which are simply neglected, yet an important to any genuine program: operating with tablular info, for instance, or allowing and disabling buttons. And this ebook does not cover from the trickier concerns, like growing customized elements or growing renderers for various presentation layers. no matter if you are skilled with JSF or a simply beginning out, you will find every thing you must find out about this expertise during this ebook. issues coated contain: * The JSF atmosphere * developing and rendering elements * Validating enter * dealing with user-generated occasions * Controlling web page navigation * operating with tabular facts * Internationalization * Integration among JSF and Struts * constructing customized renderers and customized elements"
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Com/catalog/jsvrfaces/. zip. zip You can use the same command on a Unix platform. Two new directories are created: jsfbook and src. The first directory contains all examples described in this book, and the second contains the Java source files for the JavaBeans, custom components, and other classes used in the examples. 33 34 The examples directory structure complies with the standard Java web application format described in Chapter 4. 0-compliant web container to run the examples. If you like to use a container other than Tomcat, be sure to read the documentation for that container for instructions on how to install a web application.
All these parameter access methods work the same for both GET and POST requests. Example 4-1 also shows you how to use the getHeader() method for reading request header values, the getRequestURI( ) method for getting the complete request URI, and various getXXXPath() methods for getting different parts of the URI path. To write all the information received from the request back to the browser, the doGet() gets a PrintWriter from the HttpServletResponse object by calling the getWriter() method. It then generates the response body simply by writing content to the writer.
Flush( ); } } } In Example 4-2, a request parameter named type is used to choose between a plain text, an HTML, or a GIF response. The response must include the Content-Type header to tell the browser what type of content the response body contains. The servlet used the setContentType() method to set this header. The method takes the MIME type for the content as its single argument. The HttpServletResponse interface contains a number of methods like this for setting specific response headers. For headers not covered by specific methods, you can use the setHeader() method.
JavaServer Faces by Hans Bergsten