How to open a jsf page on a link with a record . Link is in email
Respected Friends ,
I am facing a need for sending a email link to users for opening a form for processing a record . I have created a servlet for forwarding the user to the desired page on which we need to render a perticualr record. The servlet forwards the user to the required page but when the page is rendered it gives
java.lang.NullPointerException at iffco.wf.view.servlets.UserLinkRedirectServelt.getApplicationModule(UserLinkRedirectServelt.java:143) at iffco.wf.view.servlets.UserLinkRedirectServelt.doPost(UserLinkRedirectServelt.java:125) at javax.servlet.http.HttpServlet.service(HttpServlet.java:763) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:712) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:369) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:865) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:447) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:215) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:117) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:110) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303) at java.lang.Thread.run(Thread.java:595)
Please help me ,
I want to know how i can load a page from a link with a perticular record .
I am using jdeveloper 10.1.3 . Also when i acess the current application module from the servlet it gives me the null pointer exception.
Thanks in advance
HI FRANK THANKS FOR THE QUICK REPLY I AM PASTING THE CODE OF MY SERVLET..
frank can you please provide me how to pass parametres along with jspx link and how to acess them in the managed bean .this will also solve my problem.
package iffco.wf.view.servlets;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.*;
import javax.servlet.http.*;
import iffco.wf.view.backing.LoginPageBean;
import iffco.wf.view.utils.ADFJSFUtils;
import oracle.jbo.ApplicationModule;
import oracle.jbo.ViewObject;
import oracle.jbo.client.Configuration;
import iffco.wf.model.wf_servicesImpl;
import javax.faces.context.FacesContext;
import javax.faces.el.ValueBinding;
import oracle.adf.controller.v2.context.LifecycleContext;
import oracle.adf.controller.v2.lifecycle.PageController;
import oracle.adf.model.BindingContext;
import oracle.adf.model.binding.DCDataControl;
public class UserLinkRedirectServelt extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=windows-1252";
public void init(ServletConfig config) throws ServletException {
super.init(config);
/**Process the HTTP doGet request.
public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {
String var0 = "";
String var1 = "";
String var2 = "";
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>UserLinkRedirectServelt</title></head>");
out.println("<body>");
out.println("<p>The servlet has received a GET. This is the reply.</p>");
out.println("</body></html>");
out.close();
System.out.println("Inside doget method of servlet");
LoginPageBean LoginBeanInstance = new LoginPageBean();
System.out.println("Login bean initiated--->" + LoginBeanInstance );
String nextJSP = "/faces/LoginPage.jspx";
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP);
dispatcher.forward(request,response);
/**Process the HTTP doPost request.
public void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {
String var0 = "";
String var1 = "";
String var2 = "";
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>UserLinkRedirectServelt</title></head>");
out.println("<body>");
out.println("<p>The servlet has received a POST. This is the reply.</p>");
out.println("</body></html>");
out.close();
System.out.println("Inside post method of servlet");
LoginPageBean LoginBeanInstance = new LoginPageBean();
System.out.println("Login bean initiated--->" + LoginBeanInstance );
String amDef = "iffco.wf.model.wf_services";
String config = "wf_servicesLocal";
wf_servicesImpl service = (wf_servicesImpl)Configuration.createRootApplicationModule(amDef,config);
System.out.println("service created --> "+ service);
ViewObject vo=service.getLoginVO();
System.out.println(vo);
vo.setNamedWhereClauseParam("p_personal_no","109128");
vo.setNamedWhereClauseParam("p_password","abc");
vo.executeQuery();
System.out.println("View Object has -->"+vo.getEstimatedRowCount()+" Rows");
ADFJSFUtils newHelperClass = new ADFJSFUtils();
System.out.println("New Helper Class Initated -->"+newHelperClass);
ApplicationModule currentAM = newHelperClass.getDataControlApplicationModule("wf_servicesDataControl");
System.out.println("Current AM is -->"+currentAM);
ViewObject vo = currentAM.findViewObject("LoginVO");
System.out.println(vo);
vo.setNamedWhereClauseParam("p_personal_No","109128");
vo.setNamedWhereClauseParam("p_password","abc");
vo.executeQuery();
System.out.println("View Object has -->"+vo.getEstimatedRowCount()+" Rows");
System.out.println("Before method");
wf_servicesImpl wfser=getApplicationModule();
System.out.println("after method value got-->"+wfser);
String nextJSP = "/faces/LoginPage.jspx";
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP);
dispatcher.forward(request,response);
public wf_servicesImpl getApplicationModule() {
FacesContext context = FacesContext.getCurrentInstance();
System.out.println("context --"+context);
ValueBinding vb = context.getApplication().createValueBinding("#{data}");
BindingContext bc = (BindingContext) vb.getValue(context);
DCDataControl dc = bc.findDataControl("wf_servicesDataControl");
return (wf_servicesImpl) dc.getDataProvider();
private void redirect(
ResponsePage aDestinationPage, HttpServletResponse aResponse
) throws IOException {
String urlWithSessionID = aResponse.encodeRedirectURL(aDestinationPage.toString());
aResponse.sendRedirect( urlWithSessionID );
private void forward(
ResponsePage aResponsePage, HttpServletRequest aRequest, HttpServletResponse aResponse
) throws ServletException, IOException {
RequestDispatcher dispatcher = aRequest.getRequestDispatcher(aResponsePage.toString());
dispatcher.forward(aRequest, aResponse);
}
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