Execution of a jsf Page is blank page

Similar Questions

• To access a page method call parameters jsf page fields

  I have a workflow with a single method, call the execution after a point of view (jsf page).
  
  The view is a jsf page that allows to edit several fields to then filter a view object. This inputtext fields - components in general-have no connection.
  
  The next step in the workflow is executing a method call that takes these parameters - values entered previously in the jsf page - and to run a vo.setwhere and then a vo.exeuteQuery methods but I need the input provided in the previous page. I don't know what is the best method to get access in the ADF.
  
  I usually pass parameters to the method call in the page 'Change the binding of the Action', section 'settings' via EL expressions.

  You can have a support with scope pageFlow bean and bind the attribute to the property value as John mentioned. However, if you do not want to generate a bean, you can simple binding to a pageflow scope variable (might be created automatically).

  Something like

  value="#{pageFlowScope.someVariable}"
  

  and then for the methodCall activity, set the value of the parameter to the same as above EL.

  Arun-

• JSF page not returned in fashion Design (JDev 11.1.2.1.0)

  Hello!
  
  Strange behavior recently in JDeveloper 11.1.2.1.0) begins: JSF pages in some projects are not rendered more. We have activated "see design time Messages in newspapers" in Tools/Preferences/JSP JDev and HTML Visual editor and message
  WARNING: a problem was execution of the page.  Using backup made appears in the log. This is visible in this picture:
  [http://dl.dropbox.com/u/14304804/design_view_problem.jpg | http://dl.dropbox.com/u/14304804/design_view_problem.jpg]
  What is common to all projects with this question, is that we run "Delete ADF Security Configuration" that has been activated before and we have implemented our custom using phase listener security.
  
  No idea what's wrong here?
  
  Kind regards
  Sašo
  
  Published by: Sašo c. May 21, 2012 14:24

  Hello

  You can try and surround your code to security phase by the following listener

  if(!ADFContext.getCurrent().isDesigntime()){
      ... your security code ...
  }
  

  Frank

• Update the table in a jsf page

  Hello experts

  I have a problem with refreshing table:

  I have an entity named "folder" of this entity, I select a few 'folder' special conditions:

  to exple table in the page 'A' shows all records where State = 'ongoing'

  and table b in the 'B' Page shows all the folder where State = 'TEMP '.

  the isssue here is when I change the State of a row in the second table, tha means when I select a line and State = 'in progress' with a merge feature, it has not appeare in the first tabe,

  
  

  I'm tempted to refresh it with iteratorbinding.excutequery () it works for the temp table record that designates the modified line is diseappeard but not there not appeare in the first table.

  
  

  I can't add a partial trigger table coz two are not on the same page, and I can't use the iterator to the first page (EXCEPTION of POINTER NULL)...

  
  

  I use jdeveloper 12.1.3.0.0, ejb and jpa and jsf pages for interaction with users and oracle for the database db11g
  

  Why don't you use a workflow?

  To allow the other iterator, you can drag from the data command and drop it onto the second page in the table. Once the table is visible on the second page, switch to source mode and remove the table tag. This will remove the table but leave the iterator binding available on page 2.

  Now, you can run the iterator again two page and when you navigate to a page it should show changes.

  However, this approach comes with certain costs. Add the iterator is available on page two, it is executed when you enter page two, even if you use it on the page. This could cause a delay when rendered, depending on the size of the data.

  Using the task flow will certainly be the best choice!

  Timo

• Call the method call activities before you navigate to the target jsf page

  Dear all,

  I use JDeveloper Studio Edition Version 12.1.3.0.0.

  Requirement:

  I have a stubborn taskflow. The stubborn workflow is without using page fragments.

  I have three pages: login.jsf, admin.jsf, user.jsf. I have a method call activity in the taskflow. The login.jsf is the default page. The page of login.jsf have an af:selectOneRadio with two af:selectItem: Admin and user. It also has an af:button. When the user select the af: af selectItem: selectOneRadio and click on the af: button, it should call the method call activity (doLogin) and based on logic it will redirect to the page admin.jsf or user.jsf page.

  Please find the taskflow below:

  

  How to achieve the solution to the prescription above.

  Thank you and best regards,

  Susanto Paul

  Hi all

  I'm able to resolve the obligation.

  The post below was really helpful.

  http://andrejusb.blogspot.in/2011/09/programmatic-ADF-task-flow-router.html

  Thank you best regards &,.

  Susanto Paul

• Store the value of the client side in the .jsf page

  Hello

  I implemented the functionality of line selection using check box in an af:table paginated . The user can select a record by activating the individual checkbox at the level of each line or select all the records by selecting the checkbox "Select all" at the level of the table header. I added a client listener that fires on the box click and the javascript function I capture the unique value of each line and then invoke a server event and by passing all the unique values captured.

  I've also attached a server listener that calls a method in the managed bean. In the method I capture all the unique values (which went from java script) in the java collection and then storing the collection in the view range.

  On the page, I have a button 'Submit' who collect all values stored in the field of view and execute the necessary business logic. This full feature works very well.

  My requirement is to improve the flexibility of the page.

  When the user selects the check box, it takes around a second deal with the life cycle complete .jsf page.

  Is it possible to avoid the call Server to store the values in the field of view instead if I can store the decision-making value on the client side-side (which I believe will improve performance) and then finally when the user presses the button "submit" I'll enter the stored values on the client side and complete the rest of the business logic.

  Please let me know if this is possible in the page .jsf which is developed in the ADF with JDev 12 c (12.1.3) or please suggest another approach.

  Indications will be useful.

  Thanks in advance.

  Kind regards

  Gerard

  There are two ways to do this, consider for example the browser Local storage / storage of Session:

  http://blog.teamtreehouse.com/storing-data-on-the-client-with-localStorage

• Can a report of Jasper operate with an af:button on a page fragment (jsff) or simply on a jsf page?

  Mr President.

  Can a report of Jasper operate with an af:button on a page fragment (jsff) or simply on a jsf page?

  Because I'm running report jasper jsff page but it does not work but the same report runs on a jsf page.

  Concerning

  Cherish!

  The answer to this question is Yes

  We can run report jasper with a button on a page jsff using the servlet class

  The same code for jdev worm 12.1.3.0.0 is as below

  package ash.view;
  
  import ash.model.SchoolAppModuleImpl;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.PrintWriter;
  
  import java.sql.Connection;
  import java.sql.PreparedStatement;
  import java.sql.SQLException;
  
  import java.util.HashMap;
  import java.util.Locale;
  import java.util.Map;
  
  import javax.servlet.ServletConfig;
  import javax.servlet.ServletException;
  import javax.servlet.annotation.WebServlet;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import net.sf.jasperreports.engine.JasperCompileManager;
  import net.sf.jasperreports.engine.JasperExportManager;
  import net.sf.jasperreports.engine.JasperFillManager;
  import net.sf.jasperreports.engine.JasperPrint;
  import net.sf.jasperreports.engine.JasperReport;
  import net.sf.jasperreports.engine.design.JasperDesign;
  import net.sf.jasperreports.engine.xml.JRXmlLoader;
  
  import oracle.jbo.client.Configuration;
  
  @WebServlet(name = "ReportServlet", urlPatterns = { "/reportservlet" })
  public class ReportServlet extends HttpServlet {
      private static final String CONTENT_TYPE = "text/html; charset=UTF-8";
  
      public void init(ServletConfig config) throws ServletException {
          super.init(config);
      }
  
      protected Connection getConnection() {
  
          PreparedStatement st = null;
          String amDef = "ash.model.SchoolAppModule";
          String config = "SchoolAppModuleLocal";
          SchoolAppModuleImpl am = (SchoolAppModuleImpl ) Configuration.createRootApplicationModule(amDef, config);
  
          st = am.getDBTransaction().createPreparedStatement("select 1 from dual", 0);
          Connection conn = null;    
  
          try {
              conn = st.getConnection();
              return conn;
          } catch (SQLException e) {
          }   
  
          return null;
      }
  
      public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          String var0 = "";
          try {
              var0 = request.getParameter("classId");
          } catch (Exception e) {
              e.printStackTrace();
          }
          response.setContentType(CONTENT_TYPE);
          Map parameters = new HashMap();
                 parameters.put("format", "pdf");
                 parameters.put("WEBDIR", getServletContext().getRealPath("/"));
                 parameters.put("REPORT_LOCALE", new Locale("ar"));
  
                 parameters.put("classId", new String(var0));
                 Connection conn = null;
                 InputStream is = null;
                 try
                 {
                   conn = getConnection();
                   is = getServletContext().getResourceAsStream("/WEB-INF/reports/ClassDataReport.jrxml");
  
                   response.setContentType("application/pdf");
                   response.addHeader("Content-Disposition", "attachment; filename=ClassDataReport.pdf");
  
                   JasperDesign jasperDesign = JRXmlLoader.load(is);
                   JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
                   JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, conn);
                   JasperExportManager.exportReportToPdfStream(jasperPrint, response.getOutputStream());
  
                   conn.close();
                 }
                 catch (Exception e) {
                   e.printStackTrace();
                 } finally {
                   closeConnection(conn);
                   try {
                       if(is !=null){
                           is.close();
                       }                   
  
                   } catch (Exception localException1)
                   {
                   }
                 }
  
          PrintWriter out = response.getWriter();
          out.println("");
          out.println("");
          out.println("");
          out.println("
  The servlet has received a GET. This is the reply.
  ");
          out.println("");
          out.close();
      }
  
      protected static void closeConnection(Connection conn) {
          try {
              if(conn !=null){
                  conn.close();
              }
          } catch (Exception ex) {
              //  System.out.println("Developer Msg : Exception in printReport1Servlet.closeConnection()");
          }
      }
  }
  

  Concerning

• How to define data lists to scroll automatically in a jsf page?

  There is a requirement that data lists (extracts from the database) scrolls automatically in the region within a jsf page as a list of names of actors/actress will be shown and scroll at the end of a movie.

  Is there an easy way to implement it in jdev 12.1.2?

  Thank you.

  This is a great feature of continuous scrolling in tables in the ADF. (However, it is a characteristic of af: listView instead of af: jdev12.1.2 table?)

  Blog I've posted in previous answer was talking af:table and not af:listView.

  My first use case is different:

  This is data auto scrolling on the screen without user interaction.

  I got the impression that you're talking about that.

  Maybe you can use af:poll and call next() operation.

  Or you can try with AdfRichTable javascript api: http://jdevadf.oracle.com/adf-richclient-demo/docs/js_docs_out/index.html (I see methods like scrollToRowIndex(), but I don't know exactly how you can use it)

  A related use case is image slideshow:

  There are several images to shown but one for once, and the images can be shifted to show in turn automatically.

  Is the carousel component more af:poll be a good solution for this requirement?

  Yes, carousel will be the appropriate component.

  You can use af:poll (ADF 11 g: carousel goes round and round (... and round and..)-AMIS Technology Blog), or javascript to do the rotation (componentCarousel with autospin |) ADF recipes)

  Dario

• How to keep summers jsf pages correctly updated to account for changes to data in the database?

  This is a case of common use for web applications:

  User open A (i.e. a jsf page) of a web application, keep open for a period of time and do some browsing or editing on this page.

  During this time, someone others or modified events of the data in the database, then:

  Scenario A:

  1. the user should be able to see the evolution of the data in the above open jsf page when page navigate to other records.

  or when the page is refreshed by refreshing the web browser (reload the page) or by pressing a button on the page manually.

  Scenario b:

  2. the page should be able to be updated automatically to reflect the new changed data in the backend database.

  -This means that the user has no need to run the refresh action intentionly/manually to get the new data.

  Here's a possible implementation are provided in subsection 12.1 JDEV/ADF for above use cases:

  1.kdario: tips to know how to refresh your data

  Re: Field Image cannot refresh when you move between records in a jsf page

  In my opinion, the solution of kdario is a little bit complicated, is there an easy approach?

  and kdario says:

  'normal way' for update page is generally very bad for applications based on JSF/ADF.

  Is there more evidence or reference documents to support above sayings?

  2 to implement scenario B, which is recommended methods?

  Is the Active Data one approach good?

  If there are active - as tech batteries was adopted for web applications on the internet (which will have more agreement than in the intranet user), would there be possible serious performance problems?

  Thanks in advance.

  In fact, I suggested to the position 3 solutions (and option c) Notifications of changes to database is the most complicated).

  Also, here is solution d) in pageDef, select iterator and ownership of Cache set to false results

  'normal way' for update page is generally very bad for applications based on JSF/ADF.

  Is there more evidence or reference documents to support above sayings?

  Well, when you use the "back/refresh" browser button, this will retrieve the Forms page cache and skip the controller of the ADF.

  You can use google to do this, for example:

  https://groups.Google.com/Forum/#! subject/adf-methodology/CKoDdhLdrYE

  ADF developers world: how to avoid the mistake Houston-35007?

  Andrejus Baranovskis Blog: How to manage the Web browser buttons in the ADF/WebCenter Applications

  Dario

• Field image cannot refresh when you move between records in a jsf page

  In jdev 12.1.2

  I have a formlayout in a jsf page, there is an af:image that bind to a url of the image file, the source code is like this:

  ("#{bindings.") Headpicurl.inputValue}')

  < f: facet = '3' tab name >

  < af:panelFormLayout id = "pfl1" >

  < af:inputText value = "#{bindings." Id.inputValue}"label =" #{bindings. " ID.hints.label}.

  required = "#{bindings." ReadOnly ID.hints.Mandatory}' = 'true '.

  columns = "#{bindings." Id.hints.displayWidth}.

  maximumLength = "#{bindings." ID.hints.Precision}.

  shortDesc = "#{bindings." ID.hints.ToolTip}"id ="it1">

  < f: validator binding = "#{bindings." ID. Validator} "/ >"

  < / af:inputText >

  < af:image shortDesc = "#{bindings." Headpicurl.hints.ToolTip}"id ="it4.

  source = "#{bindings." Headpicurl.inputValue} "/>"

  < f: facet name = "footer" >

  < af:panelGroupLayout layout = "horizontal" id = "pgl1" >

  < af:button actionListener = "#{bindings." First.Execute text}"="First"

  Disabled = "#{!}" bindings. PartialSubmit First.enabled}"="true"id ="b1"/ >

  < af:button actionListener = "#{bindings." Previous.Execute text}"="previous ".

  Disabled = "#{!}" bindings. PartialSubmit Previous.enabled}"="true"id ="b2"/ >

  < af:button actionListener = "#{bindings." Next.Execute text}"="next ".

  Disabled = "#{!}" bindings. PartialSubmit Next.enabled}"="true"id ="b3"/ >

  < af:button actionListener = "#{bindings." Last.Execute text}"="Last ".

  Disabled = "#{!}" bindings. PartialSubmit Last.enabled}"="true"id ="b4"/ >

  < / af:panelGroupLayout >

  < / f: facet >

  < / af:panelFormLayout >

  < / f: facet >

  But when I browse the records on the page, other areas will be update correctly, except for the field of the image - the image field showing will not refresh.

  Can someone help?

  Thank you.

  so I the records of buttons and update Navigation to set null values from Headpicurl to a valid value, the value of the PartialTriggers property of this image tag.

  Then, the page will be updated correctly for all areas, including the field of view when do the record navigation.

  But after I have erased the property PartialTriggers of this image tag and reload the page, or even restart the jdev, it still works OK now!

  -Then setting this property PartialTriggers the real cause of the previous question of no image field refresh?

  Well, you also updated your nulls to the actual URL so maybe posing (in combination with the caching of the browser)?

  General approach to prevent caching of web resources is the addition of random string to the url of the resource (as suggested by Cvele) or you can write custom servlet which will serve as a proxy and add http headers (non-cache, non-store, must-revalidate expires,...) to prevent caching.

  Anyway, now I have to get rid of the question above. However, a new problem emerges:

  When I update and validation records the attributes of the database. the fields in the jsf page will not display the newly modified database records even if I refreshed the browser or press F5.

  Only after that I open the jsf page in a new browser window, database changes will appear.

  -Is caused by the caching of the browser? and how to fix it?

  How you exactly "update and validation" records (in the same application or a different app/session)?

  If you do this session or different application then you must run query VO again.

  Dario

• Cannot change a jsf page in a WYSWYG way when you use a page template

  One of the great features of Jdev/adf (now I'm on jdev 12.1.2) is the feature of declarative design for user interfaces, and there are mechanisim of the Page template, declarative elements, etc.

  However, when I create a jsf page based on a page template, so I can't edit the items in the jsf page in a WYSWYG way, it means that I drag - move interface components panel user components in the window of the Application of the Structure, or directly modify the jsf page source file - then I get bored of the above characteristic of Jdev.

  My above said just? or are there other ways?

  Thank you.

  You can try disclosed property to true for the tab you want in the model.

  Then refresh (or reopen) page.

  Dario

• How do I layout of items stacked in jsf pages in jdev?

  Hi, experts,

  In jdev (11.1.1.7), how can I do layout of items stacked in a jsf page?

  For example, I put an image component in a jsf page as the background of my App UI page, and I want to put several components such as the outtexts WE (bunk) component image.

  Thank you.

  Hello

  There is a provision which may contain other components, but not all of the components

  Suppose that you can drop the image in a layout of the Panel group but cannot remove a text output in af:image

  so it is not widespread, specify your requirement.

  But if you just add pictures in the background and the component of normal form,

  then just use the layout of the Panel as a root component group and set its background image property in the Properties Inspector

  as - background - image: url("noti_error.jpg");

  Thank you

• Automatically, click a CommandButton in the JSF page after loaded the page

  I need to automatically, click the command button 'refreshPage' after loading of the JSF page below: (after trying the code in blue comment I'm unhappy. Please help!)

  <? XML version = "1.0" encoding = "UTF - 8"? >
  "< jsp:root xmlns:jsp ="http://java.sun.com/JSP/Page"version ="2.1"
  "xmlns:f ="http://java.sun.com/jsf/core"
  "xmlns:h ="http://java.sun.com/jsf/html"
  "xmlns:AF ="http://xmlns.oracle.com/adf/faces/rich"
  "xmlns:PE ="http://xmlns.oracle.com/adf/pageeditor"
  Cust ="http://xmlns.oracle.com/adf/faces/customizable" >. "

  < f: loadBundle basename = "oracle.webcenter.portalframework.sitestructure.resource.PortalAppPageResource"
  var = "portalResource" / >
  < jsp:directive.page contentType = text/html"; Charset = UTF - 8 "/ >

  < f: view >
  
  < af:document id = "d1" title = "#{portalResource ['home_title']}" >
  
  <!-< af:clientListener method = "callRefreshButton" type = "load" / >
  < af:resource type = "javascript" >
  function callRefreshButton()
  {
  var button = AdfPage.PAGE.findComponentByAbsoluteId ("refreshPage");
  ActionEvent.queue (button, true);
  }
  < / af:resource >->
  
  < af:messages id = "m1" / >
  < af:form id = "f1" >

  < af:pageTemplate value = "#{bindings.pageTemplateBinding.templateModel}" id = "pt1" "
  viewId="/oracle/webcenter/portalapp/pagetemplates/pageTemplate_swooshy.jspx" >
  < name f: attribute = "showNavigation" value = "#{true}" / >
  < f: facet 'content' = name >
  < af:group id = "g1" >
  < af:inputText label = "Label 1" id = "it1" / >
  < / af:group >
  < / f: facet >
  < / af:pageTemplate >
  
  <!-< af:commandLink id = "refreshPage" text = "refreshPage.
  action = "#{WangBean.reloadPage} '"
  rendered = 'true '.
  inlineStyle = "do-size: small;" color: white; »
  partialSubmit = "true" clientComponent = "true" >
  < / af:commandLink >->
  
  < af:inputText value = "#{bindings." Sdan8.inputValue}.
  columns = "#{bindings." Sdan8.hints.DisplayWidth}.
  maximumLength = "#{bindings." Sdan8.hints.precision}.
  shortDesc = "#{bindings." Sdan8.hints.ToolTip}"id ="it2.
  Visible = "false".
  inlineStyle = "do-size: medium;" make-weight: bold; ">
  < f: validator binding = "#{bindings." Sdan8.validator} "/ >"
  < af:convertNumber groupingUsed = "false".
  model = ' #{bindings. " Sdan8.format} "/ >"
  < / af:inputText >

  < / af:form >

  < / af:document >
  < / f: view >
  < / jsp:root >
  

  Timo,

  I got it works!

  What happened is that I didn't notice that the system generated a method of PollEvent by default for me inside my WangBean after I created the af:poll component:

  {} public void reloadPage (PollEvent pollEvent)

  Add your code here

  }

  Once I pasted my code in the vote started working as expected and the inventory button. Component AF:poll solve my problem.

  Thank you very much and I have learned 2 new staffs ADF on your part, am really appreciated.

  Kind regards

  Yi

• Display image Blob of jsf page without using servlet

  Hi all

  I would like to ask you if there is no solution to display image blob inside the jsf page without using servlet

  because I don't think its right to go to the servlet and get the value of the image from there.

  BR

  his does not work

  This helps not at all. All I can say is that the example works and you must check your configuration. Someone is preferable to obtain the sample running D o they you can watch in the most expensive configuration.

  Some configurations are case-sensitive, so you should double check your spelling.

  Timo

• Integrating a declarative component written in JSF 1.2 in a jsf page

  Hello
  
  I have a declarative component written in JSF 1.2. I want to integrate this declarative component in an ADF application using JSF 2.0.
  
  On creating a page jspx in JSF 2.0 & coating component decalrative it works very well, but I have to integrate in a JSF page instead, which does not work.
  
  Any suggestions?
  
  Thank you
  Serge

  Hello

  for JDeveloper 11 g R2, you will need to know before I know if the application that you build using JSPX or Facelets pages documents. The technologies are different (introduced with JSF 2) and declarative elements must be build for the type of document used by the application

  Frank