By Marty Hall, Larry Brown, Yaakov Chaikin
Java EE is the know-how of selection for e-commerce purposes, interactive websites, and Web-enabled prone. Servlet and JSP expertise offers the hyperlink among internet consumers and server-side functions in this platform. center Servlets and JavaServer Pages, quantity 2: complicated applied sciences, moment version, is the definitive advisor to the complex positive factors and functions supplied by way of servlets and JSP.
quantity 2 provides complicated features like customized tag libraries, filters, declarative defense, JSTL, and Struts. just like the first quantity, it teaches state of the art strategies and top practices illustrated with whole, operating, absolutely documented courses.
quantity 2 explains intimately the complicated instruments and strategies had to construct strong, enterprise-class functions. you are going to methods to keep watch over program habit in the course of the web.xml deployment descriptor dossier, the right way to improve software protection via either declarative and programmatic tools, and the way to take advantage of servlet and JSP filters to encapsulate universal habit. you will additionally methods to keep an eye on significant software lifecycle occasions, top practices for utilizing JSTL, and the way to construct customized tag libraries. quantity 2 concludes with an in-depth creation to the Jakarta Struts framework.
Complete resource code for all examples is offered loose for unrestricted use at www.volume2.coreservlets.com. for info on Java education from Marty corridor, visit courses.coreservlets.com.
quantity 1 offers finished assurance of the servlets and JSP requisites, together with HTTP headers, cookies, consultation monitoring, JSP scripting components, dossier inclusion, the MVC structure, and the JSP expression language. It additionally covers HTML varieties, JDBC, and most sensible practices for layout and implementation.
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Additional info for Core Servlets and Javaserver Pages: Advanced Technologies
Xml, which is placed in the WEB-INF directory within each Web application. 3). Most of the servlet and JSP examples in this chapter assume that they are part of a Web application named deployDemo. For details on how to set up and register Web applications, please see Chapter 1 (Using and Deploying Web Applications). xml, is used to control many facets of a Web application. xml, you can assign custom URLs for invoking servlets, specify initialization parameters for the entire application as well as for specific servlets, control session timeouts, declare filters, declare security roles, restrict access to Web resources based on declared security roles, and so on.
2 (Structure of Web Applications). com/. xml deployment descriptor. All you have left to do is rename the top-level directory from app-blank to myWebApp. However, if you decide to create these directories by hand, here is what you will need to do. Create a directory called myWebApp anywhere on your system outside of your server’s installation directory. Right under it, create a directory called WEB-INF. Under WEB-INF, create a directory called classes. xml, and place it into the WEB-INF directory.
Your entries go here. All are optional. 3. 4-specific features will not be enabled for your Web application. 4) will be treated as regular text in your JSP pages. xml that appear directly under web-app and briefly discuss their purpose. For detailed treatment of each of these subelements, see later sections in this chapter. 3. 3 is still important. 3. It’s also important for maintaining preexisting Web apps. 2. 4. 4 and earlier versions. The following list shows all legal elements that can appear directly within the web-app element.