Write A Servlet Program That Displays Server Name Port.
You may use a combination of the HTML output settings shown above. The more specific setting (per-column) takes precedence. Setting the boolean parameter in each of the functions to false means that HTML code will be escaped. If you need to disable the automatic HTML restriction, we strongly suggest setting up a custom display function to escape user input wherever possible.
JavaServer Pages (JSP) is a complimentary technology to Java Servlet which facilitates the mixing of dynamic and static web contents. JSP is Java's answer to the popular Microsoft's Active Server Pages (ASP). JSP, like ASP, provides a elegant way to mix static and dynamic contents.
Some applets and applications, for example, the Java Web Server Administration Tool, display information about a servlet. This information can include a short description of the purpose of the servlet, its author, and perhaps its version number. The Servlet API provides a method to return this information, getServletInfo. By default, this.
Java Servlet is much faster then CGI and Perl since it runs in the same JVM. In case of CGI and Perl separate memory space is allocated for execution of the program which reduces it's performance.. To display the name of the server you are using use the method getServerName() of the ServletRequest interface. To display the server port number.
A unique Id is assigned to the session. The Servlet container also sets a Cookie in the header of the HTTP response with cookie name and the unique session ID as its value. The cookie is stored in the user browser, the client (user’s browser) sends this cookie back to the server for all the subsequent requests until the cookie is valid.
Overview of Servlets and JSP Pages. Similar to Common Gateway Interface (CGI) scripts, servlets support a request and response programming model. When a client sends a request to the server, the server sends the request to the servlet. The servlet then constructs a response that the server sends back to the client.
Each servlet is managed by a org.w3c.jigsaw.servlet.ServletWrapper, to add a servlet you just have to create a ServletWrapper and in the servlet-class field put the class name of the servlet witch must be in the directory relative to the DirectoryResource or in the CLASSPATH.