By Howard Kushner
Constructed in cooperation with the group that created the examination, this booklet is the one certification research consultant counseled and prompt through IBM for try 287. it truly is designed to organize Java programmers to meet the position of an IBM qualified firm developer, assisting the jCert company developer activity position, which represents the top point of net and firm improvement. the newest model of J2EE (Version 1.3) is tested and the wealthy beneficial properties and performance integrated within the WebSphere platform are awarded. Programmers are guided throughout the myriad perspectives and views in addition to the J2EE roles permitting them to construct, try, gather, and install firm purposes the WebSphere method.
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Additional info for Developing J2EE Applications with WebSphere Studio: IBM Certified Enterprise Developer (IBM Certification Study Guides) (IBM Certification Study Guides)
The servlet uses the name of the field in the getParameter method to retrieve the data entered for that field. The HTML form also defines the method, which in this case is set to POST, and the action, which in this case is set to /myweb/POSTRequest. An HTML form may contain elements other than single-line text entry fields. An HTML form may include a text area, which contains multiple lines of text. The syntax for a text area is the following. getParameter("ADDRESS") for the text area returns all text entered.
The overhead of loading and starting a servlet is significantly reduced to only one occurrence. Additionally, when a request is completed, the application server keeps the servlet in memory waiting for another request. Life cycle The JVM executes a servlet in a predefined manner. 2 illustrates the life cycle of a servlet. 2: Servlet life cycle. 50 Chapter 3: Servlets Chapter 3: Servlets 51 When an application server receives a request for a servlet, the application server first determines whether the servlet is already loaded into memory and available.
We will use this project to hold all of our test server configurations. Clicking Finish provides us with an empty folder to hold Server Instances and Server Configurations. Setting up the WebSphere Test Environment We have two equivalent ways to begin creating a server instance and configuration: Either right-click the Server Project folder in the Navigator View, or right-click the Servers icon in the Server Configuration View. 27. 27: New Server and Server Configuration wizard. 0 Test Environment as our server type.
Developing J2EE Applications with WebSphere Studio: IBM Certified Enterprise Developer (IBM Certification Study Guides) (IBM Certification Study Guides) by Howard Kushner