By James Goodwill
Jakarta Struts undertaking offers an open resource framework for growing net purposes that leverage either the Java Servlets and JavaServer Pages applied sciences. Struts has got developer aid and is readily turning into a dominant actor within the open resource group. * James Goodwill is a well-respected authority and bestselling writer of books on Java net functions * offers a hands-on, code-intensive instructional on development Java internet purposes utilizing the Jakarta Struts Framework * significant other website presents digital models of all code examples within the ebook
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Example text
The bean property for which you want to set a value. If you set propertyName to an asterisk (*), then the action will iterate over the current ServletRequest parameters, matching parameter names and value types to property names and setter method types, and setting each matched property to the value of the matching parameter. If a parameter has an empty string for a value, the corresponding property is left unmodified. The name of the request parameter whose value you want to set the named property to.
At this point, you should feel comfortable with the basic servlet and JSP technologies and how each of these technologies can be used to assemble a Web application. In the next chapter, we are going to take our first hard look at the Struts framework. 47 Chapter 3: Getting Started with Struts In this chapter, we begin our Jakarta Struts coverage. First, we explain the steps that you must perform when installing and configuring a Struts application. Then, we create a sample application that displays the components of a working Struts application.
Using a JSP Error Page To see how an error page works, let’s create a simple JSP that throws an uncaught exception. 7 uses the error page created in the previous section. jsp. jsp, which is the name of the error page. To make a JSP aware of an error page, you simply need to add the errorPage attribute to the page directive and set its value equal to the location of your JSP error page. The rest of the example simply throws an exception that will not be caught. jsp page in your browser. 10. jsp example.