... c:\jakarta-tomcat\classes;c:\jakarta-tomcat\lib\ant.jar;c:\jakarta-tomcat\lib\jaxp.jar;c:\jakarta-➥tomcat\lib\servlet.jar;c:\jakarta-tomcat\lib\parser.jar;c:\jakarta-tomcat\lib\we➥bserver.jar;c:\jakarta-tomcat\lib\jasper.jar;c:\jakarta-➥tomcat\lib\xalanservlet.jar;c:\jakarta-tomcat\lib\xerces.jar;c:\jakarta-➥tomcat\lib\xalanj1compat.jar;c:\jakarta-tomcat\lib\aaxalan.jar;c:\jdk1.3\lib\too➥ls.jar2001-05-23 ... c:\jakarta-tomcat\classes;c:\jakarta-tomcat\lib\ant.jar;c:\jakarta-tomcat\lib\jaxp.jar;c:\jakarta-➥tomcat\lib\servlet.jar;c:\jakarta-tomcat\lib\parser.jar;c:\jakarta-tomcat\lib\we➥bserver.jar;c:\jakarta-tomcat\lib\jasper.jar;c:\jakarta-➥tomcat\lib\xalanservlet.jar;c:\jakarta-tomcat\lib\xerces.jar;c:\jakarta-➥tomcat\lib\xalanj1compat.jar;c:\jakarta-tomcat\lib\aaxalan.jar;c:\jdk1.3\lib\too➥ls.jar2001-05-23 ... now havea new Web application installed. As the chess sayinggoes, “the rest is all a matter of details.”You have what you need: an example of a Java servlet calling a JSP page, and an example...
... discussed and heralded in particular as a great benefit in connectinglegacy applications to modern Web-based applications.Within a Web application, passing even one parameter that contains XML data ... environments.5.4 XML Data Flows in Web ApplicationsWe believe that passing XML data within a Web application will turn out to be asimportant as passing XML data between systems and applications.The latter ... database management systembecause handling chat data is an obvious job.We decided against that for several rea-sons. One is that we did not want to assume that all our readers are familiar...
... discussionabout applet use in Java Web applications. First, we made an applet that included a timer mechanism based on putting a thread to sleep.We then set it up to repeatedlycall the showDocumentmethod ... bonForumXML (a ForestHashtable) as a string.Now we decided to make it the input XML stream for the Xalan XSLT processor aspart of our TransformTagclass.Displaying the available chats would mean ... was to make sure that any inputthat came froma user could be used as an XML attribute value.The example thatprompted that (hopefully code-wide) precaution was the chatTopicattribute that...
... logic, bymaking one more variable available to each JSP-produced page of a bonForuminstance.The incoming request parameters are validated and made available to the Web application in whatever ... the applet parameters right onthe _robot page? Using the same target parameter as we did in the last section as anexample, that would mean doing this:<jsp:param name=”target” value=”display”/>The ... flow—and that hopefully have self-explanatory names:boolean haveSubject = true;boolean haveTopic = true;boolean actorIsHostInChat = false;boolean actorIsGuestInChat = false;boolean chatExistsForSubjectAndTopic...
... there are two such XSLT classes, one for Xalan -Java 1 and one for Xalan- Java 2.Simplifying greatly, here are the statements called by the TransformTagclass to getits XML database in a string:private ... source:if(haveSubject && haveTopic) {String fakeChatItem = chatSubject + “_[“;fakeChatItem = fakeChatItem + chatTopic + “]”;// ‘_’ is separator in a chatItem// ‘.’ is separator in pathNameHashtable ... this watermark. 2798.2 The BonForumStore Classobject.That means that all the pathnames are available again but are sorted alphabeti-cally.The code on a JSP document likes it that way.The...
... will assume as it translates the tag thatthese variables are available as page attributes. Later, when we look at the translated Java code for a Tag Handler instance, you can see where the value ... the applet was refreshingdata from the bonForumXML database?When the timer thread in the applet was sleeping, we saw the applet panel as a green rectangle.When the applet was about to awaken, ... visible. In fact, several multi-media output capabilities are made available to the code in an applet. You can developone of those Web applets that make Java famous!We have used the paint()method...
... twoclasses to encapsulate the steps required for either Xalan -Java 1or Xalan -Java 2.Theclasses are called Xalan1Transformerand Xalan2Transformer. Each has one methodcalled transform, which ... version from the form on system_executes_command.jsp. Note that if you have Xalan -Java- 2,you can also set xalanVersionto Xalan Java 1, as long as the compatibility JAR fileis accessible, ... OutputPathNamesTagclass(stripped of its Javadoc comments, to save space):package de.tarent.forum;import java. util.*;import javax.servlet.jsp.*;import javax.servlet.jsp.tagext.*;/** Outputs pathNames...
... created by the followingstatement from the file ForestHashtable .java: public NodeNameHashtable nodeNameHashtable = new NodeNameHashtable();Notice that a class called NodeNameHashtablehas ... this watermark. 416Chapter 11 XML Data Storage Class: ForestHashtableattribute to a chat element.We will also try using it to allow a chat host to change therating of a guest in a chat.WarningThe ... watermark. 402Chapter 11 XML Data Storage Class: ForestHashtablepathNamesare allowed in this tree of subjects.This means, for example, that you cannot have two sibling nodes named Piranhaor...
... de.tarent.forum;/*<Imports>*/import java. text.*;import java. io.*;import java. net.*;import java. util.*;import javax.servlet.jsp.*;import javax.servlet.jsp.tagext.*;// Imported TraX classesimport javax.xml.transform.TransformerFactory;import ... javax.xml.transform.TransformerFactory;import javax.xml.transform.Transformer;import javax.xml.transform.stream.StreamSource;import javax.xml.transform.stream.StreamResult;import javax.xml.transform.TransformerException;import ... select an XSLTprocessor.* Currently, three values: “Xalan Java 1”, “Xalan Java 2”, or“xalanVersion”.* If type is “xalanVersion”, the tag object looks for an application * attribute of the same...