By Peter Rossbach
ISBN-10: 0201674912
ISBN-13: 9780201674910
In regards to the Authors web page. Preface. The software program for the booklet. Notation in UML. Questions and proposals. Our thank you. I. foundation 1. basics. 2. HTTP Server. three. Servlets. II. WEBAPP FRAMEWORK. four. Configuration administration. five. Protocol carrier. 6. Server Toolkit. 7. constructing Jo! The Servlet Engine. eight. Servlet approach Invocation. nine. Java gadgets in a Relational Database. 10 producing Dynamic HTML Pages with Servlets. III. functions. eleven. Storebrowser. 12. Onlineshop. thirteen. Chat. 14. ultimate reviews. Appendix A: Configfilereader dossier structure. Appendix B: suggestions for Configuring the patience Framework. Appendix C: Deployment Descriptor's DTD. Appendix D: Figures. Appendix E: Tables. Appendix F: Listings. Bibliography. Index
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Extra resources for Java server and servlets : building portable web applications
Example text
Public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException { // MIME-Typ gleich "text/html" setzen. setContentType("text/html"); // ServletOutputStream des ServletResponse-Objektes // besorgen. getOutputStream(); // Zähler inkrementieren... myCount++; // ... und aktuellen Stand ausgeben. println("Dieses Servlet wurde " + myCount + " mal aufgerufen. "); } public void destroy() { // Zählerstand schreiben. println("Konnte } new FileOutputStream(myFilename); new DataOutputStream(fileOut); ausgeben.
Dabei darf es sich um beinahe beliebige Ressourcen handeln, die vom Server zur Verfügung gestellt werden. Hierzu zählen unter anderem Servlets, JavaServer-Pages (JSP), Dateien oder CGISkripten. 9. 0 üblich war. Über die nun veralteten Methoden getServlet(), getServlets() und getServletNames() ließ sich eine Referenz auf ein Servlet erlangen. Anschließend konnte dessen service()-Methode aufgerufen werden. Dieses Vorgehen birgt einige ernstzunehmende Gefahren, da es keine Möglichkeit gibt festzustellen, in welchem Zustand sich das erlangte Servlet befindet.
Er dient einzig und allein zur Annahme der Verbindung. 1). Somit fungiert die statische main-Methode als Akzeptor und jede Instanz der Klasse SimpleHttpd als Handler. Im Konstruktor wird zunächst der Instanzvariablen s der aktuelle Socket zugewiesen. Anschließend wird der SimpleHttpd-Thread mit start() gestartet. In der run()-Methode schließlich finden wir große Teile des Codes wieder, der sich vorher in der main()Methode befand. Die Methode sendDocument() bleibt völlig gleich. Aus OneShotHttpd wird so SimpleHttpd.
Java server and servlets : building portable web applications by Peter Rossbach
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