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EAP Aufgabe 4.2

EAP Aufgabe 4.2. PEA 07. Tosten Nordmann Christian Jordan Jens Frommelt. Was will ich eigentlich sagen. Security ist doof CMP JSP Frage: Wohin mit der Anwendungslogik?. EJB Container. RequestInputBean. CMP. WEB Container. JSP. DB. RequestInputBean. gewuerzname propertyStatusMsg

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EAP Aufgabe 4.2

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  1. EAP Aufgabe 4.2 PEA 07 Tosten Nordmann Christian Jordan Jens Frommelt

  2. Was will ich eigentlich sagen • Security ist doof • CMP • JSP • Frage: Wohin mit der Anwendungslogik?

  3. EJB Container RequestInputBean CMP WEB Container JSP DB

  4. RequestInputBean • gewuerzname • propertyStatusMsg • isInitilized • Getter-/Setter-Methoden • isValid()

  5. Spicerequest.jsp Inputvalidate.jsp WSRequest.jsp

  6. Spicerequest.jsp <%-- Verweis auf ein Value-Bean, in dem die Benutzereingaben gesichert und validiert werden --%> <jsp:useBean id="requestInput" scope="request" class="pea07.beans.RequestInputBean" /> <h3>Statusmeldungen:</h3> <%-- Ausgabeliste mit inkorrekten Werten, falls vorhanden --%> <%-- Hier wird ebenfalls eine Bean-Property aus RequestInputBean abgefragt --%> <font color="red"> <jsp:getProperty name="requestInput" property="propertyStatusMsg" /> </font> <form action="inputvalidate.jsp" method="post"> <table border="1"> <tr> <td>Gewuerzname:</td> <td><input type="text" name="gewuerzname" value="" > <%-- ‘Eingabefeld‘ --%> </td> </tr> <tr> <td colspan=2><input type="submit" value="Als WS suchen"></td> <%-- 'Anfrage senden' Button --%> </tr> </table> </form>

  7. Inputvalidate.jsp <jsp:useBean id="requestInput" scope="request" class="pea07.beans.RequestInputBean" > <jsp:setProperty name="requestInput" property="*" /> </jsp:useBean> <% if (requestInput.isValid()) { %> <jsp:forward page="WSRequest.jsp" /> <% } else { %> <jsp:forward page="spicerequest.jsp" /> <% } %>

  8. WSRequest.jsp <% //Instanz eines ServiceLocators erzeugen, die den WebService ausfindig macht Pea07_SpiceWSServiceLocator locator = new Pea07_SpiceWSServiceLocator(); //Web-Service initialisieren Pea07_SpiceWS service = null; try { //Service erzeugen service = locator.getPea07_SpiceWS(new URL( "http://localhost:80/jboss-net/services/Pea07_SpiceWS")); } catch (javax.xml.rpc.ServiceException se) { out.println("Service-Fehler: "+se.toString()); } catch (MalformedURLException mue) { out.println("URL-Ausnahme: "+mue.toString()); }

  9. WSRequest.jsp (2) //Service verwenden, Suche durchführen //Service verwenden, finde alle Gewürze des Lagerbestands Pea07_Gewuerz spice = null; Pea07_Gewuerz[] spices = null; try { spice = service.pea07_searchSpice(requestInput.getGewuerzname()); spices = service.pea07_searchAllSpices(); } catch (java.rmi.RemoteException re) { out.println("Es wurde eine RemoteException geworfen: "); re.printStackTrace(System.out); } out.println("Spice Name: "+spice.getName()+"<br>"); out.println("Spice Price: "+spice.getPreis()+"<br>"); out.println("Amount in storage [kg]: "+spice.getMenge()+"<br>"); out.println("<br><br>"); out.println("<h3>List of all offered spices</h3><br>"); for (int k=0; k < spices.length; k++) { out.println(k+1+". "+spices[k].getName()); } %>

  10. Fröhliche Weihnachten!

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