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Java Server Pages: A Code-Intensive Premium Reference- P23:Before you begin reading Pure JSP Java Server Pages, you might want to take a look at its basic structure. This should help you outline your reading plan if you choose not to read the text from cover to cover. This introduction gives you an overview of what each chapter covers. | This version of the println method prints the passed in int value to the output stream followed by a CRLF. Parameters int println long value Method public void println long value throws java.io.IOException This version of the println method prints the passed in long value to the output stream followed by a CRLF. Parameters long println float value Method public void println float value throws java.io.IOException This version of the println method prints the passed in float value to the output stream followed by a CRLF. Parameters float println double value Method public void println double value throws java.io.IOException This version of the println method prints the passed in double value to the output stream followed by a CRLF. Parameters double Chapter 21 The javax.servlet.http Package Overview The java.servlet.http package contains the interfaces and classes that are implemented and extended respectively to create HTTP-specific servlets. Figure 21.1 contains the javax.servlet.http object model. - 221 - Figure 21.1 The javax.servlet.http object model. Interfaces Interfaces for the java.servlet.http package are HttpServletRequest HttpServletResponse HttpSession and HttpSessionBindingListener. HttpServletRequest Interface public interface HttpServletRequest extends ServletRequest The HttpServletRequest interface defines an object that provides the HttpServlet.service method with access to HTTP-protocol-specific header information sent by the client. The HttpServletRequest interface has 26 methods described in the following sections. addHeader Method public void addHeader java.lang.String name java.lang.String value The addHeader method adds another value to the response for the given header. addHeader returns no value and throws no exceptions. Parameters java.lang.String java.lang.String addDateHeader Method public void addDateHeader java.lang.String name long date The addDateHeader method adds another date value to the response for the given header. addDateHeader
