Problem with server side state saving ,JSF 1.1.1

Hello,
In my web.xml  the.STATE_SAVING_METHOD setting is s server
<context-param>
        <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
        <param-value>server</param-value>
    </context-param>
for measurement of application security isn't not allow to change this parameter to client , so the problem  when i access for application and i open a new page via linker for print for example and i would access for my initial page to make change or modify my initial page it s no possible to make any modification because i have a empty bean , but if the state saving is a client i haven't a problem because a tree map is stored in client browser, so my version of JSF is 1.1.1 ,
So can you explain the cause for his problem
and what's the solution for my problem ?
NB:i can't change the parameter for STATE_SAVING_METHOD for a client
Thank you

did you search this form, there were lot of discussions in the past about server side cookies, you may find an answer to your problem.
alternate approache for sending a value from parent page to the pop up window.
1. when opening the pop up pass the values along with the url (if the size of variable is small)
alternatively you can store the value in a hidden form field in parent window and access the same from poup window using
you can simple access the page one form field value in page 2 (pop up) by using the following code.
window.opener.document.getElementById('hiddenformfieldid').value

Similar Messages

  • ADF server-side state saving method

    Hi all,
    As far as I know, ADF has three view state saving methods.
    1. client - tokens
    2. client - all
    3. server
    My question is about server-side state saving.
    If I set state saving methos "server" in web.xml, view state is stored in session scope as LRU map.
    And the size of the map can be configured with below parameters in web.xml.
    <context-param>
    <param-name>com.sun.faces.numberOfViewsInSession</param-name>
    <param-value>10</param-value>
    </context-param>
    <context-param>
    <param-name>com.sun.faces.numberOfLogicalViews</param-name>
    <param-value>5</param-value>
    </context-param>
    However I think these parameters is offered by Mojarra (Sun's JSF RI) and any ADF guides don't mention them.
    These parameters are supported in ADF?
    Regards,
    Atsushi

    Hi,
    don't have a support statement for this but would be surprised if we don't as ADF Faces runs on top of the JSF RI.
    However, I am wondering why your customer prefers state saving being handled on the server as it doesn't allow fail over for your application setup. Also it is the recommended option
    http://docs.oracle.com/cd/E25054_01/web.1111/b31973/ap_config.htm#CEGECDJF
    +"Context parameter javax.faces.STATE_SAVING_METHOD: Specifies where to store the application's view state. By default this value is server, which stores the application's view state on the server. *It is recommended that you set javax.faces.STATE_SAVING_METHOD to client* when you use ADF Faces, to store the view state on the browser client. When set to client, ADF Faces then automatically uses token-based, client-side state saving. *You can specify the number of tokens to use instead of using the default number of 15*.+
    +You can specify the following state-saving context parameters:+
    +org.apache.myfaces.trinidad.CLIENT_STATE_METHOD: Specifies the type of client-side state saving to use when client-side state saving is enabled by using javax.faces.STATE_SAVING_METHOD. The values for CLIENT_STATE_METHOD are:+
    +token: (Default) Stores the page state in the session, but persists a token to the client. The simple token, which identifies a block of state stored back on the HttpSession object, is stored on the client. This enables ADF Faces to disambiguate the same page appearing multiple times. Failover is supported.+
    +all: Stores all state information on the client in a (potentially large) hidden form field. It is useful for developers who do not want to use HttpSession.+
    +*Performance Tip:*+
    +Because of the potential size of storing all state information, it is recommended that you set client-state saving to token.+
    +*org.apache.myfaces.trinidad.CLIENT_STATE_MAX_TOKENS*: Specifies how many tokens should be stored at any one time per user, when token-based client-side state saving is enabled. The default is 15. When the number of tokens is exceeded, the state is lost for the least recently viewed pages, which affects users who actively use the Back button or who have multiple windows opened at the same time. If you are building HTML applications that rely heavily on frames, you would want to increase this value.+
    +*org.apache.myfaces.trinidad.COMPRESS_VIEW_STATE*: Specifies whether or not to globally compress state saving on the session. Each user session can have multiple pageState objects that heavily consume live memory and thereby impact performance. This overhead can become a much bigger issue in clustering when session replication occurs. The default is off.+
    +org.apache.myfaces.trinidad.USE_APPLICATION_VIEW_CACHE: Enables the Application View Cache (AVC), which can improve scalability by caching the state for the initial renders of the page's UI at an application scope. However, every page in the application must by analyzed for support in the AVC to avoid potential problems with debugging in an unexpected state and information leakage between users. Additionally, development is more difficult since page updates are not noticed until the server is restarted, and although initial render performance is enhanced, session size is not.+
    +*CAUTION:*+
    +The Application View Cache is not supported for this release. The feature does not work for any page where the rendering of the component tree causes the structure of the component tree to change temporarily. Since this is often the case, USE_APPLICATION_VIEW_CACHE should not be used."+
    So unless your customer has a good reason for server side state I would suggest him/her to go with best practices
    Frank

  • Problem with Server-Side InitialContext

    The Weblogic 5.1 documentation states that to create a context from within a
    server-side object, all you need to do is issue the following statement:
    Context ctx = new InitialContext();
    That you do not need to specify a factory, or a provider URL; by default,
    the context will be created as a WebLogic context and will connect to the
    local naming service.
    I only get this to work when I am running from within an EJB. When I try
    this from a servlet, it doesn't work.
    I am running Weblogic 5.1 SP9 with JDK 1.3.1_02. Any ideas about what I may
    be doing wrong???

    Hi,
    runtime->session_id indicates the browser session not a windows session so as such there is nothing to prevent that except from preventing to open the app in the same browser again by eg testing on the session id
    Eddy

  • Problem with server side cookie

    Hi, I have a problem with a server side cookie. I'm trying to store a cookie trough the  cl_bsp_server_side_cookie=>set_server_cookie method in the OnInitialitation event handler of a bsp (my bsp application is non mvc) and then to retrieve this cookie trough the  cl_bsp_server_side_cookie=>get_server_cookie method in the OnInputProcessing event handler of the same bsp. In this cookie i'm storing a internal table but i'm not getting it when i invoke the get_server_cookie method.
    This is the source code that i'm implementing:
    OnInitialitation:
    wa_comunnication_data-mobile = wa-mobile.
              wa_comunnication_data-telefono = wa-tel_number.
              wa_comunnication_data-email = wa-email.
              APPEND wa_comunnication_data to comunnication_data.
               cl_bsp_server_side_cookie=>set_server_cookie(
                  EXPORTING
                   name = 'cook_comunnication_data'
                   application_namespace = 'NONE'
                   application_name = 'NONE'
                   username = 'NONE'
                   session_id = runtime->session_id
                   data_value = comunnication_data
                   data_name = 'comunnication_data'
                   expiry_time_rel = 720 ).
    OnInputProcessing:
    cl_bsp_server_side_cookie=>get_server_cookie(
          EXPORTING
           name = 'cook_comunnication_data'
           application_namespace = 'NONE'
           application_name = 'NONE'
           username = 'NONE'
           session_id = runtime->session_id
           data_name = 'comunnication_data'
          CHANGING
           data_value = comunnication_data ).
         READ TABLE comunnication_data INDEX 1 INTO wa_comunnication_data.
    regards, marcel.

    Why do you need to use cookies in the same BSP Application?
    Try to use below:
        username              = sy-uname
        application_name      = runtime->application_name
        application_namespace = runtime->application_namespace
    <i>*reward each useful answer</i>
    Raja T
    Message was edited by:
            Raja Thangamani

  • Problem with server side includes

    Hi - I have a page with two php includes which no longer display properly. They were fine when I set them up, and I haven't changed anything.  They don't display online - and also don't display on my local server (Apache).  I have identical code on other sites which does display properly, both on my server and online.  There's nothing wrong with the file paths as they display correctly on the DW display screen, and also on live display, so I'm completely baffled.
    Can anyone shed any light?
    Here's a sample page - http://www.lucidinsight.com/travelprev.shtml
    The includes should both be displaying on the right side of the page (hence the two error messages)
    Thanks!

    Hi...contrary to all logic and expectations, shtml pages DO process php includes.  I appreciate that this seems very strange but I have several examples on my sites, with identical code to that already posted, and they work.  I have to use a .php file extension rather than .asp as this is required for the file to be read by an online CMS site - rather than change the page to a php file and have to amend the site navigation, I have gone with just changing the file extension.  This works for every single one of my sites except this one, and I can't see why, hence this question...
    SW

  • JSF 1.0 - client side state saving fails

    Existing screen worked fine in Beta with client-side state saving. Fails in 1.0 Release with:
    java.lang.NullPointerException
         at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:997)
         at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1008)
         at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1022)
         at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1008)
         at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1008)
         at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1008)
         at com.sun.faces.application.StateManagerImpl.restoreComponentState(StateManagerImpl.java:273)
         at com.sun.faces.application.StateManagerImpl.restoreView(StateManagerImpl.java:186)
         at com.sun.faces.application.ViewHandlerImpl.restoreView(ViewHandlerImpl.java:239)
         at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:157)
         at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
         at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
         at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
    This exception is found in tomcat log. Nothing found in debug log. I switched state saving to server and screen works, however, I need the application to work with client state saving.
    Some screens in application work with client state saving. Some don't. All those that fail have the same exception as above.
    Any ideas?

    Hello
    I have the same problem but i am not using any verbatim tag in my case the problem only appears when i am using two custom validators for a inputtexd in the same page .
    the problem is solved using the server saving method but i want to use client saving method.
    If you have any ideas please help .
    this is the exeption :
    java.lang.NullPointerException     at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1004)     at com.sun.faces.application.StateManagerImpl.restoreComponentState(StateManagerImpl.java:352)     at com.sun.faces.application.StateManagerImpl.restoreView(StateManagerImpl.java:240)     at com.sun.faces.application.ViewHandlerImpl.restoreView(ViewHandlerImpl.java:228)     at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:157)     at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)     at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)     at org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:122)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:285)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:126)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)     at java.lang.Thread.run(Thread.java:534)
    thanks
    yinbr
    Message was edited by:
    yinbr

  • Why sever-side state saving doesn't support fail over?

    Hi all,
    In my previous thread "ADF server-side state saving method" Frank said that it doesn't support fail over.
    Re: ADF server-side state saving method
    My customer is wondering the reason.
    If anyone has a clear statement about it, could you share it?
    Any help will be much appreciated.
    Atsushi

    Timo,
    As I wrote in my previous thread, my customer adopted multi-windows application design because they didn't know it caused viewExpiredException frequently.
    Now I'm looking for the best setting for avoiding the exception and need ADF guru's help.
    Frank said that ADF is on Sun's RI. And it seems that the state-saving parameters of Mojarra are working correctly in my environment. However any ADF docs don't mention the behavior of server-side state saving clearly. When I set state-saving method "server", view states are managed per logical view (≒ window). And it seems better for multi-window application than using client-token based state management from the perspective of preventing viewExpiredException.
    Because fail over is not their requirement, if we could make sure that server-side state saving doesn't have other side-effects they might adopt it.
    So I'd like to know in more detail about the behavior.
    Thanks,
    Atsushi

  • ADF client-side state saving

    <p>Hi, I'm developing JSF with ADF and MyFaces. I want to minimise the load on my Server, e.g. by minimising use of session beans and other types of session storage. So I use the <t:saveState> from MyFaces instead. In web.xml I set the parameter:</p>
    <p>
    <context-param>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>client</param-value>
    </context-param>
    </p>
    <p>This makes all the MyFaces components store state on the client. However, this still doesn't force the ADF components to use client-side state saving(!). As described here, the default behaviour in ADF is to use a session token to store page state in HttpSession. In my project I've seen all sorts of strange behaviour when the session token exceeds the number of CLIENT_STATE_MAX_TOKENS. Of course I can try to increase this value, but this will lead to even more sesison usage. </p>
    <p>So, I tried setting another parameter in web.xml:</p>
    <p>
    <context-param>
    <param-name>oracle.adf.view.faces.CLIENT_STATE_METHOD</param-name>
    <param-value>all</param-value>
    </context-param>
    <p>
    <p>This should force all state to be moved to the client in a hidden form field. But when I do this I get this type of error:</p>
    <p>
    2006-10-25 13:21:30,854 ERROR (taglib.core.ViewTag:181) - Error writing body content
    java.io.NotSerializableException: oracle.adf.view.faces.component.core.input.CoreSelectOneChoice
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1075)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1369)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1341)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1284)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)
    at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1245)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1069)
    at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1245)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1069)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291)
    at java.util.ArrayList.writeObject(ArrayList.java:569)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:890)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1333)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1284)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)
    at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1245)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1069)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291)
    at oracle.adfinternal.view.faces.renderkit.core.CoreResponseStateManager.writeState(CoreResponseStateManager.java:82)
    at org.apache.myfaces.application.jsp.JspStateManagerImpl.writeState(JspStateManagerImpl.java:430)
    at oracle.adfinternal.view.faces.application.StateManagerImpl.writeState(StateManagerImpl.java:241)
    at org.apache.myfaces.taglib.core.ViewTag.doAfterBody(ViewTag.java:145)
    at org.apache.jsp.pages.innkurv.innkurvMain_jsp._jspx_meth_f_view_0(innkurvMain_jsp.java:152)
    at org.apache.jsp.pages.innkurv.innkurvMain_jsp._jspService(innkurvMain_jsp.java:91)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
    at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:416)
    at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
    at oracle.adfinternal.view.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:157)
    at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._invokeDoFilter(AdfFacesFilterImpl.java:367)
    at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:336)
    at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:196)
    at oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:87)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at no.justisdepartementet.etterlysning.web.util.ContextResourceFilter.doFilter(ContextResourceFilter.java:69)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at no.justisdepartementet.etterlysning.web.util.RedirectFilter.doFilter(RedirectFilter.java:59)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    at java.lang.Thread.run(Thread.java:595)
    </p>

    <p>Thanks guys. I did indeed try to use <t:saveState> to save the CoreSelectOneChoice. More specifically, I tried to use <t:saveState> on a backing bean where one of its properties were a CoreSelectOneChoice. The backing bean itself needs to be serializable as well as all of its properties, so the solution is to set the local variable transient.</p>
    <p>After overcoming this problem, however, I found that some of my managed beans still had serialization problems because they had references to "service managers" that were dependency injected via JSF's managed means facility. See this blog for a discussion about serialization and MyFaces.
    </p>

  • Problem in Server side includes using Tomcat

    Problem in Server side includes using Tomcat:
    I am trying out small programs in servlet.
    I get one example program for server side includes from net.
    The code is:
    <HTML>
    <HEAD><TITLE>Times!</TITLE></HEAD>
    <BODY>
    <P>
    The current time in London is!!! :
    <SERVLET CODE="CurrentTime" codebase="../servlet">
    <PARAM NAME="zone" VALUE="GMT">
    </SERVLET>
    </P>
    </BODY>
    </HTML>
    I placed this test.shtml file in tomcat-home/webapps/ROOT folder and i kept the servlet in WEB-INF/classes folder.
    I renamed the servlets-ssi.jar and i removed the comments for SSI in web.xml file.
    When i run the servlet separately, i am getting the correct result. But if i run shtml file with the URL : http://localhost:8080/Test.shtml,
    i am getting the result as:
    The current time in London is!!! :
    It is not invoking servlet program.
    CAN ANYONE HELP ON THIS!
    Thanks.

    Thanks...as u said I tried putting dir & found that
    my file was saved as Ch1Servlet.java.txt instead for
    Ch1Servlet.java......So that was a problem.Now I'm
    able to compile.Oh, yeah. Notepad will do that to you. I think when you save in Notepad if you put quotes around the name "Whatever.java" then it won't add the .txt.
    But on compiling I'm getting the following error
    package java.servlet.* does not exist
    package java.servlet.http.* does not exist
    package java.io.* does not exist
    Do u the reason for this??? The servlet stuff is java[b]x.servlet. For the io stuff, I don't know, I'd have to see your code. Either you have a typo or a corrupt installation.

  • How to handle Back button, Browser Refresh problem at server side.

    Hi Friends,
    How to handle Back button, Browser Refresh problem at server side in java?.
    I am able to trace that,
    request.getHeader("ACCEPT") is returning value- */*
    when the browser was refreshed and returning different MIME types
    for all other actions from browser.
    I have doubt, will the above solution works always for all servers,browsers?.
    Please also specify any solution to handle back button at server side?.
    Thanks in Advance.
    Venkat..

    I'm sorry I don't think tht's the right solution for
    the above question....
    We must be aware that whatever scripting methdologies
    we either javascript/vbscript would executed @
    client(browser) side not @ server side....
    Dud If U get a good solution keep me updated.....
    THANKS & REGARDS,
    RAHULMy dear friend ...
    the bad news is that u simply cant disable or add any listener to the back button of the browser.
    When u hit the back button of ur browser the URL gets re-executed. So in case u have a JSP then the history.forward() is the best solution. [only if the page doesnt get expired similar to secure https sites]
    Now dont say that user can have javascript disabled ...those users will have a pretty touch time browsing websites since javascripts r used extensively by almost all websites.
    But in case u have an action.do or servlet call then u need to manage it using a session variable since the request will be sent to the server rather than client.
    For multiple form submittion issues read the following article in javaworld...
    Client vs. server solutions
    Different solutions can solve this multiple form submission situation. Some transactional sites simply warn the user to wait for a response after submitting and not to submit twice. More sophisticated solutions involve either client scripting or server programming.
    In the client-only strategy, a flag is set on the first submission, and, from then on, the submit button is disabled based on this flag. While appropriate in some situations, this strategy is more or less browser dependent and not as dependable as server solutions.
    For a server-based solution, the Synchronizer Token pattern (from Core J2EE Patterns) can be applied, which requires minimal contribution from the client side. The basic idea is to set a token in a session variable before returning a transactional page to the client. This page carries the token inside a hidden field. Upon submission, request processing first tests for the presence of a valid token in the request parameter by comparing it with the one registered in the session. If the token is valid, processing can continue normally, otherwise an alternate course of action is taken. After testing, the token resets to null to prevent subsequent submissions until a new token is saved in the session, which must be done at the appropriate time based on the desired application flow of control.
    for more details refer :
    http://www.javaworld.com/javaworld/javatips/jw-javatip136.html
    Hope u got the idea.
    FYI I have been using both these ideas in my credit card payment gateway project. This concept has worked really well.

  • Acrobat form with server side submit, posting blank data

    Read more
    Acrobat form with server side submit, posting blank data,
    thanh xả tràn
    I have a PDF form which gets submitted to the server using a submit (server-side) button. The data is then received in XML format by a ColdFusion component which does some validation and stores it into the database.
    This PDF form is usually filled in by our clients using Adobe Reader 8 or below. While most of the times(and I mean like 96-97% of the times) everything goes well, at times we receive blank data into our database!! This renders couple of other features in our application useless as they try to parse an XML which does not exist.
    I do believe that this is not a problem at the ColdFusion side because all it does is trim(ToString(toBinary(GetHttpRequestData().content))).
    Does anyone has a clue as to why the data will be lost upon form submission?? I have done a lot of googling around it but in vain!

    There is an outside chance someone is just playing with you and submitting a blank form. Not uncommon if someone is not too familiar with forms.

  • Updating form with server-side scripts

    Hi
    For security reasons, we want to do a web service call with only server side scripts. That way we have full control over the access to the wsdl and no problems with the security.
    However, if I try to run the scripts on server-side I get no update of the data in the form... so what to do to solve that problem? Anybody with experience from that?

    To make a small update I've been messing around with various different things to be able to achieve the goal. One of the initial problems was that the Designer actually manages to create two different SOAP addresses, one of them is the correct and secure way and the other one is direct to the data source, which would be an unsecure and blocked route. That changed things a bit when I realized that.
    But still, the problem remains. If I run the script Client-Side, it works but is not an acceptable solution. If I run it Server-Side, it can't read the data and doesn't recognize the call to SOAP.connect()...
    Does anybody have any experience in webb service connection with server side scripts?

  • I refurbished my macbook air 7 months ago because there was a problem with the steady state drive. Now my battery seems to be dead again. How long does the warranty last? Do I need to pay for a new battery?

    I refurbished my macbook air 7 months ago because there was a problem with the steady state drive. Now my battery seems to be dead again. How long does the warranty last? Do I need to pay for a new battery?

    As I wrote Apple will diagnose an Apple product even if it is out of warranty for free. That should be your first step to find out if the problem is the battery or something else.
    Once you have Apple telling you a 7 month old battery is defective (if that turns out to be the case)  then it becomes a game of horse trading. You'll need to speak to the tech and when he tells you there is nothing he can do you will need to speak to the tech manager and when she says most likely there is nothing they can do you go to the store manager, etc.  It is unlikely (though possible) that they will give in easily you need to be firm, polite and let on that you're willing to accept a partial reimbursement.
    So again the first step is to find out what is wrong.
    good luck

  • Tabbed with Server Side Include

    Has anyone had any problems adding Server Side Include to the Spry Tabbed Pannels, everytime the I add a SSI to the tabbed content is locks up the tabs.
    Where the hell are to get support is this an interAKT, ADOBE or your on your own.

    Hello,
    I don't have an answer to your problem, because I've never tried this approach.
    However, I can tell you that this is an USER-TO-USER forum. If you need to request technical support from Adobe, you need to go here:
    http://www.adobe.com/go/support/
    regards,
    Ionut

  • Problems with "Select Distinct" Statement

    Hi... I've a little problem with my SQL Statement...
    I've a Table in a DataBase with Solds of the Month... the fields are: vta_fecha, vta_prod, vta_total, vta_mesa.
    I've to Select only the distincts fields of vta_prod... selected by vta_fecha and vta_mesa...
    My code is like this:         try{
                Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
                conec = DriverManager.getConnection("jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=C:/POOL/Data/BaseDat.MDB");
                state = conec.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);try{
                rec = state.executeQuery("Select DISTINCT vta_prod, vta_fecha, vta_mesa from Ventas where vta_fecha = #" + Fecha_q + "# And vta_mesa = 0");           
                rec.first();
                int x = 0;
                while (rec.isAfterLast()==false){
                    x++;
                    rec.next();
                rec.first();
                if (x > 0){
                    Productos = new String[x];
                    Total_Vta = new int[x];
                    Cant_Prod = new int[x];
                    x = 0;
                    while (rec.isAfterLast() == false){
                        Productos[x] = rec.getString("vta_prod");
                        rec.next();
                        x++;
                else{
                    Productos = new String[0];
                    Total_Vta = new int[0];
                    Cant_Prod = new int[0];
            }catch(Exception e){JOptionPane.showMessageDialog(null,e.getMessage());}Now, in the Table I have only 3 diferents vta_prod, but this Statement returns 9 Rows... and I don't know why...
    Please help me...
    Regards...

    I don�t have a complete picture because I don�t know what values you are passing in the select and I don�t know your column types but this is what I think is happening from what you have shared.
    You may have misunderstood what the DISTINCT keyword does.
    The DISTINCT keyword applies to the full set of columns in the select (not just the first column). So in your case it would be equivalent to:
    SELECT vta_prod, vta_fecha, vta_mesa
    FROM Ventas
    WHERE ...
    GROUP BY by vta_prod, vta_fecha, vta_mesa
    So, it doesn't matter that you only have 3 distinct vta_prod values if you have multiple values being returned in the other columns. The vta_mesa column can only a return a single value as �0�. That leaves the vta_fecha column which is probably a date/time column and is probably the column that is returning the three other distinct values (one date with three distinct times).
    (3 vta_prod) x (3 vta_fecha) x (1 vta_mesa) or 3x3x1 = 9 rows
    So find a way to strip the time from vta_fecha in your select statement and your SQL should return the results you expect. I�m not an Access expect but I think I remember you can use something like the �Convert� or �DatePart� functions to make that happen (check your documentation to be sure)..
    A couple of asides;
    1) You should use a PreparedStatement and rarely if ever use Statement.
    2) You should start Java variable names with lower case.

Maybe you are looking for