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  • How to pass data from selected rows using checkboxes from JSP to the server

    - by eddy
    Hi, I'd like to know if there's any way to send data to the server for the selected rows using the checkboxes I've put on those rows? I mean , how can I send only the data (in this case mileage ) of those selected rows (selected with the checkboxes) to the server ? see the image Here's the html code I use: <table> <thead> <tr class="tableheader"> <td width="10%"></td> <td width="30%">Vehicle</td> <td width="40%">Driver</td> <td width="10%">Mileage</td> </tr> </thead> <tbody> <c:forEach items="${list}" var="item"> <tr> <td align="center"> <input type="checkbox" name="selectedItems" value="c:out value="${item.numberPlate}"/>"/> </td> <td align="left"><c:out value="${item.numberPlate}"/></td> <td align="left"><c:out value="${item.driver.fullName}" /></td> <td align="left"><input type="text" name="mileage" value="" /></td> </tr> </c:forEach> </tbody> </table> I really hope you can give some guidance on this. Thanks in beforehand.

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  • Jsp declaration element

    - by Stardust
    <%! class father { static int s = 0; } %> <% father f1 = new father(); father f2 = new father(); f1.s++; out.println(f2.s); // It must print "1" %> When I run the file, I got this error. Can anybody explain? "The field s cannot be declared static; static fields can only be declared in static or top level types"

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  • jsp servlet exception: bean not found within scope.

    - by stu
    I'm getting this error: javax.servlet.ServletException: bean givingFormBean not found within scope on a page with this at the top. The class exists in the classpath, it worked this morning, and I don't get what not found within scope means. I've googled and googled and nothing useful came up.

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  • JSP functions - How to declare long as parameter in TLD

    - by Spines
    I'm getting an error WARNING: Method "pl" for function "pl" not found, I think its because I'm not declaring the parameters right. <function-signature>java.lang.String pl(java.lang.Long, java.lang.String)</function-signature> is what I have in the TLD. and public static String pl(long num, String str) is what I have in the .java file.

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  • How to pass checkbox array to Java from jsp

    - by eddy
    Hi, I'd like to know if there's any way to send data to the server for the selected rows using the checkboxes I've put on those rows? I mean , how can I send only the data of those selected rows to the server? Here's the html code I use: <table> <thead> <tr class="tableheader"> <td width="10%"></td> <td width="30%">Vehicle</td> <td width="40%">Driver</td> <td width="10%">Mileage</td> </tr> </thead> <tbody> <c:forEach items="${list}" var="item"> <tr> <td align="center"> <input type="checkbox" name="selectedItems" value="c:out value="${item.numberPlate}"/>"/> </td> <td align="left"><c:out value="${item.numberPlate}"/></td> <td align="left"><c:out value="${item.driver.fullName}" /></td> <td align="left"><input type="text" name="mileage" value="" /></td> </tr> </c:forEach> </tbody> </table> I really hope you can give some guidance on this. Thanks in beforehand.

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  • creating a thread in jsp and using join has problem

    - by Suresh S
    guys the following code does not wiat for the thread t to complete and join with the main thread, also the "created object" trace is called one more time after join is called please let me know the solution <% AProc empList = new AProc(); System.out.println("** Created Object ****"); System.out.println("Condition"+(!(p.length==0) && !(status) && !(threadLive))); if (!(p.length==0) && !(status) && !(threadLive)){ java.util.Date currDate = new java.util.Date(); try { Thread t = new Thread(empList); System.out.println("Check thread life 1 "+t.isAlive()); empList.setServletRequest(request , schemaName); System.out.println("Thread Started "+t); t.start(); System.out.println("Check thread life 2 "+t.isAlive()); if(t.isAlive()) { threadLive = true; } t.join(); while (t.isAlive()) { t.join(); } System.out.println("Check thread life 3 "+t.isAlive()); System.out.println("Thread End "+t); //} } catch (Exception e) { System.out.println("Exception in thread while running Procedure "+e); status=false; threadLive=false; } status = e.getStatusProc(); }%>

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  • Passing array values using Ajax & JSP

    - by Maya
    This is my chart application... <script type="text/javascript" > function listbox_moveacross(sourceID, destID) { var src = document.getElementById(sourceID); var dest = document.getElementById(destID); for(var count=0; count < src.options.length; count++) { if(src.options[count].selected == true) { option = src.options[count]; newOption = document.createElement("option"); newOption.value = option.value; newOption.text = option.text; newOption.selected = true; try { dest.add(newOption,null); //Standard src.remove(count,null); alert("New Option Value: " + newOption.value); } catch(error) { dest.add(newOption); // IE only src.remove(count); alert("success IE User"); } count--; } } } function printValues(oSel) { len=oSel.options.length; for(var i=0;i<len;i++) { if(oSel.options[i].selected) { data+="\n"+ oSel.options[i].text + "["+ "\t" + oSel.options[i].value + "]"; } } type=document.getElementById("typeId"); type_text=type.options[type.selectedIndex].text; type_value=document.getElementById("typeId").value; } function GetSelectedItem() { len = document.chart.d.length; i = 0; chosen = ""; for (i = 0; i < len; i++) { if (document.chart.d[i].selected) { chosen = chosen + document.chart.d[i].value + "\n" } } return chosen } $(document).ready(function() { var d; var current_month; var month; var str; var w; var sel; var sel_data; var sel_data_value; $('.submit').click(function(){ // to get current month d=new Date(); month=new Array(12); month[0]="January"; month[1]="February"; month[2]="March"; month[3]="April"; month[4]="May"; month[5]="June"; month[6]="July"; month[7]="August"; month[8]="September"; month[9]="October"; month[10]="November"; month[11]="December"; current_month=d.getMonth(); str=month[d.getMonth()]; w=document.chart.periodId.selectedIndex; // to get selected index value.... sel=document.chart.periodId.options[w].text; // to get selected index value text... for(i=sel;i>=1;i--) { alert(month[i]); } sel_data=document.chart.d.selectedIndex; sel_data_value=document.chart.d.options[sel_data].text; var data_len=document.chart.d.length; var j=0; var chosen=""; for(j=0;j<data_len;j++) { if(document.chart.d.options[i].selected) { chosen=chosen+document.chart.d.options[i].value; } } chart = new Highcharts.Chart({ chart: { renderTo: 'container', defaultSeriesType: 'column' }, title: { text: document.chart.chartTitle.value }, subtitle: { text: 'Source: WorldClimate.com' }, xAxis: { categories: month }, yAxis: { min: 0, title: {text: 'Count' } }, legend: { layout: 'vertical', backgroundColor: '#FFFFFF', align: 'left', verticalAlign: 'top', x: 100, y: 70, floating: true, shadow: true }, tooltip: { formatter: function() { return ''+ this.x +': '+ this.y +' mm'; } }, plotOptions: { column: { pointPadding: 0.2, borderWidth: 0 } }, series: [{ name: sel_data_value, data: [50, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4] }, { name: 'New York', data: [83.6, 78.8, 98.5, 93.4, 106.0, 84.5, 105.0, 104.3, 91.2, 83.5, 106.6, 92.3] }, { name: 'London', data: [48.9, 38.8, 39.3, 41.4, 47.0, 48.3, 59.0, 59.6, 52.4, 65.2, 59.3, 51.2] }, { name: 'Berlin', data: [42.4, 33.2, 34.5, 39.7, 52.6, 75.5, 57.4, 60.4, 47.6, 39.1, 46.8, 51.1] }] }); }); }); </script> <%! Connection con = null; Statement stmt = null; ResultSet rs = null; String url = "jdbc:postgresql://192.168.1.196:5432/autocube3"; String user = "autocube"; String pass = "autocube"; String query = ""; int mid; %> <% ChartCategory chartCategory = new ChartCategory(); chartCategory.setBar_name("vehicle reporting"); chartCategory.setMonth("3"); chartCategory.setValue("1000"); if (request.getParameter("mid") != null) { mid = Integer.parseInt(request.getParameter("mid")); } else { mid = 0; } Class.forName("org.postgresql.Driver"); con = DriverManager.getConnection(url, user, pass); System.out.println("Connected to Database"); stmt = con.createStatement(); rs = stmt.executeQuery("select code,description from plant"); %> </head> <body> <form method="post" name="chart"> <fieldset> <legend>Chart Options</legend> <br /> <!-- Plant Select box --> <label for="hstate">Plant:</label> <select name="plantId" size="1" id="plantId" > <!--onchange="selectPlant(this)" --> <% while (rs.next()) { %> <option value="<%=rs.getString("code")%>"><%=rs.getString("description")%></option> <% } String plant = request.getParameter("hstate"); System.out.println("Selected Plant" + request.getParameterValues("plantId")); %> </select> <br /> <label for="hcountry">Period</label> <select name="periodId" id="periodId"> <option value="0">1</option> <option value="1">2</option> <option value="2">3</option> <option value="3">4</option> <option value="4">5</option> <option value="5">6</option> <option value="6">7</option> <option value="7">8</option> <option value="8">9</option> <option value="9">10</option> <option value="10">11</option> <option value="11">12</option> </select> <br/> <!--Interval --> <label for="hstate" >Interval</label> <select name="intervalId" id="intervalId"> <option value="day">Day</option> <option value="month" selected>Month</option> </select> </fieldset> <fieldset> <legend>Chart Data</legend> <br/> <br/> <table > <tbody> <tr> <td> &emsp;<select multiple name="data" size="5" id="s" style="width: 230px; height: 130px;" > <% String[] list = ReportField.getList(); for (int i = 0; i < list.length; i++) { String field = ReportField.getFieldName(list[i]); %> <option value="<%=field%>"><%=list[i]%></option> <% //System.out.println("Names :" + list[i]); //System.out.println("Field Names :" + field); } %> </select> </td> <td> <input type="button" value=">>" onclick="listbox_moveacross('s', 'd')" /><br/> <input type="button" value="<<" onclick="listbox_moveacross('d', 's')" /> &emsp; </td> <td> &emsp; <select name="selectedData" size="5" id="d" style="width: 230px; height: 130px;"> </select></td> <% for (int i = 0; i <= 4; i++) { String arr = request.getParameter("selectedData"); System.out.println("Arrya" + arr); } %> </tr> </tbody> </table> <br/> </fieldset> <fieldset> <legend>Chart Info</legend> <br/> <label for="hstate" >Type</label> <select name="typeId" id="typeId"> <option value="" selected>select...</option> <option value="bar">Bar</option> <option value="pie" >Pie</option> <option value="line" >Line</option> </select> <br/> <label for="uname" id="titleId">Title </label> <input class="text" type="text" name="chartTitle"/> <br /> <label for="uemail2">Pin to Dash board:</label> <input class="text" type="checkbox" id="pinId" name="pinId"/> </fieldset> <input class="submit" type="button" value="Submit" /> <!--onclick="printValues(s)"--> </form> <div id="container" style="width: 800px; height: 400px; margin: 0 auto"> </div> </body> </html> using javascript function, am storing the selected listbox values in 'sel_data_value'. I need to pass this selected array values to database to retrieve values regarding selection. How can i do this using ajax. i don know how to pass array values in ajax and retrieve it from database. Thanks.

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  • JSP Iterating over a map of a list when the value might be null

    - by Brian Hoover
    How do I clear the value from the stack of a s:iterator? I'm trying to iterator over a TreeMultimap with a structure like: TreeMultimap<person, lineItems> persons; Using something like: <s:iterator value="attendeesForParticipantTypeEvents.asMap()"> <div> <s:property value="key.name" /><br /> <s:iterator id="currentSku" value="value"> <s:property value="currentSku.name" /><br /> </s:iterator> </div> </s:iterator> This works fine, except when the treeMultimap has null for lineItems, then it's taking the value from the previous iteration. So, a structure like: persons = {{"Person1",["Line1","line2"]}, {"Person2",["Line3","line4"]}, {"Person2",null}} Renders as: <div> Person1<br /> Line1<br /> Line2<br /> </div> <div> Person2<br /> Line3<br /> Line4<br /> </div> <div> Person3<br /> Line3<br /> Line4<br /> </div> Which seems to indicate that the value isn't being cleared on each iterator. What do I need to do to handle the case where value might be null? Thanks for your help

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  • JSF2: Re-render all components on page that have a given ID, without absolute paths

    - by tlind
    Is there any way in JSF 2.0/PrimeFaces of re-rendering all components (using the PrimeFaces update="id1 id2..." attribute or the <f:ajax render="..."/> tag) that have got a given ID, regardless of whether they are in the same form that contains the button triggering the AJAX re-render or not? For example, I want my button to re-render all sections on a page that visualize the user's current shopping basket. Right now, I always have to specify the absolute path to the components that I want to get updated, e.g. update=":header:basket :left-sidebar:menu:basket" which is rather impractical if the structure of the page changes (besides, I have not been able to figure out the correct path for one of these components). I already tried to implement a custom EL function like this, which traverses the component tree: update="{utilBean.findAllComponentsMatchingId('basket')}" but at the time that function is evaluated, apparently not the entire component tree has been set up as it doesn't contain the components I am looking for. How can I deal with this? There certainly must be an easy way of doing AJAX-based updates of sections of the page that are not part of the current <h:form>? Thanks!

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  • java jsp : connecting to sql server tutorial?

    - by phill
    Can anyone recommend a tutorial on how to write a java servlet which connects to ms sql server and manages data? I'm trying to write something which pulls products out of one database and inserts them into a stored procedure located on another database. thanks in advance

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  • if a JAR is placed on app servers's classpath how do we reference it from JSP

    - by Omnipresent
    On our application we are getting an error saying: PWC6117: File "/struts-tags" not found code in the file thats giving error is: <%@ taglib prefix="s" uri="/struts-tags" %> This file is in struts2-core.jar which is placed on the classpath of the app server (Sun 9.1). The code will work fine and not complain when the jar is actually in WEB-INF/lib of the application, compared to being on classpath of the appserver. But we can not change that. it has to be on appservers classpath. But how should we change our code so that this error goes away? I can create mapping in my web.xml so that tag uri's are change. but what should taglib-location be changed to? so that it references to app servers classpath? <taglib> <taglib-uri>/WEB-INF/struts-tags.tld</taglib-uri> <taglib-location>/WEB-INF/struts-tags.tld</taglib-location> </taglib>

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  • Query in data population using select in jsp

    - by sarah
    I am populating data using <select name="test"> <option value='<%=session.getAttribute("tList")%>'><%=session.getAttribute("tList") %></option> </select> but the values are getting display in a single row in the combo box not row wise,where i am going wrong ?

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  • Creating a page selector with JSP/JSTL

    - by zakSyed
    I am working on a project where I am required to build a page somewhat similar to the one you see when you visit a website like blockbuster. When you click on browse more you are taken to a page with a bar on top with different page numbers and a drop down to select the number of pages you want to view on that page. I want to include a feature like that on my page but I am not sure where to start. In my page I have list of 200 items which I want to display page by page. I was suggested to use custom tags, but is there a more simpler or efficient way to create that functionality. My web application uses Spring MVC framework and is coded entirely in Java. Any suggestions will be appreciated.

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  • How do i loop an ajax request (using jquery) and jsp

    - by Mrshll187
    <script> //when page is ready do the following $(document).ready(function() { //set interval of refresh setInterval(doAjaxMethod, 1000); }); function doAjaxMethod(id) { $.ajax({ url: "getStatus/"+id, dataType: "json", success: function(json) { $('#ajaxStatus').html(json.status); } }); </script> <% //How can I do something like this int n = object.size(); for(int i=0; i<n; i++) { doAjaxMethod(object.getId()); } %> <div id=ajaxStatus> status updates here </div>

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  • jsf application in jboss web server

    - by chetan
    I try to run jsf application in myeclipse using jboss web server and following error while running jboss server. ERROR [AbstractKernelController] Error installing to Parse: name=vfsfile:/E:/ctn%20sodtware/jboss-5.0.1.GA/server/default/deploy/3aprwebdemo.war/ state=Not Installed mode=Manual requiredState=Parse org.jboss.deployers.spi.DeploymentException: Error creating managed object for vfsfile:/E:/ctn%20sodtware/jboss-5.0.1.GA/server/default/deploy/3aprwebdemo.war/ at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithOutput.createMetaData(AbstractParsingDeployerWithOutput.java:337) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithOutput.createMetaData(AbstractParsingDeployerWithOutput.java:297) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithOutput.createMetaData(AbstractParsingDeployerWithOutput.java:269) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithOutput.deploy(AbstractParsingDeployerWithOutput.java:230) at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171) at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157) at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553) at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781) at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:698) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.loadProfile(ProfileServiceBootstrap.java:304) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:205) at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:405) at org.jboss.Main.boot(Main.java:209) at org.jboss.Main$1.run(Main.java:547) at java.lang.Thread.run(Thread.java:619) Caused by: org.jboss.xb.binding.JBossXBException: Failed to parse source: cvc-datatype-valid.1.2.1: '3aprwebdemo' is not a valid value for 'NCName'. @ vfsfile:/E:/ctn%20sodtware/jboss-5.0.1.GA/server/default/deploy/3aprwebdemo.war/WEB-INF/web.xml[5,20] at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBParser.java:203) at org.jboss.xb.binding.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:168) at org.jboss.deployers.vfs.spi.deployer.JBossXBDeployerHelper.parse(JBossXBDeployerHelper.java:199) at org.jboss.deployers.vfs.spi.deployer.JBossXBDeployerHelper.parse(JBossXBDeployerHelper.java:170) at org.jboss.deployers.vfs.spi.deployer.SchemaResolverDeployer.parse(SchemaResolverDeployer.java:132) at org.jboss.deployers.vfs.spi.deployer.SchemaResolverDeployer.parse(SchemaResolverDeployer.java:118) at org.jboss.deployers.vfs.spi.deployer.AbstractVFSParsingDeployer.parseAndInit(AbstractVFSParsingDeployer.java:256) at org.jboss.deployers.vfs.spi.deployer.AbstractVFSParsingDeployer.parse(AbstractVFSParsingDeployer.java:188) at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithOutput.createMetaData(AbstractParsingDeployerWithOutput.java:323) ... 22 more Caused by: org.xml.sax.SAXException: cvc-datatype-valid.1.2.1: '3aprwebdemo' is not a valid value for 'NCName'. @ vfsfile:/E:/ctn%20sodtware/jboss-5.0.1.GA/server/default/deploy/3aprwebdemo.war/WEB-INF/web.xml[5,20] at org.jboss.xb.binding.parser.sax.SaxJBossXBParser$MetaDataErrorHandler.error(SaxJBossXBParser.java:426) at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source) at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source) at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source) at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source) at org.apache.xerces.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(Unknown Source) at org.apache.xerces.impl.xs.XMLSchemaValidator.reportSchemaError(Unknown Source) at org.apache.xerces.impl.xs.XMLSchemaValidator.processOneAttribute(Unknown Source) at org.apache.xerces.impl.xs.XMLSchemaValidator.processAttributes(Unknown Source) at org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(Unknown Source) at org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(Unknown Source) at org.apache.xerces.xinclude.XIncludeHandler.startElement(Unknown Source) at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source) at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.parse(SaxJBossXBParser.java:199) ... 30 more

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  • JSF SSL Hazzard

    - by java beginner
    In my application it is required that only certain pages need to be secured using SSL so I configured it security-constraint> <display-name>Security Settings</display-name> <web-resource-collection> <web-resource-name>SSL Pages</web-resource-name> <description/> <url-pattern>/*.jsp</url-pattern> <http-method>GET</http-method> <http-method>POST</http-method> </web-resource-collection> <user-data-constraint> <description>CONFIDENTIAL requires SSL</description> <transport-guarantee>CONFIDENTIAL</transport-guarantee> </user-data-constraint> and added filter http://blogs.sun.com/jluehe/entry/how_to_downshift_from_https but only one hazard is there. I am using it with richFaces. Once it goes to HTTPS its not changing the page—I mean if I perform post action it doesn't actually happen. But if I do it from the local machine's browser it works perfectly, from a remote browser it stucks with HTTPS and not changing after that. Here is my web.xml's snap: <filter> <filter-name>MyFilter</filter-name> <filter-class>MyFilter</filter-class> <init-param> <param-name>httpPort</param-name> <param-value>8080</param-value> </init-param> </filter> <filter-mapping> <filter-name>MyFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <security-constraint> <web-resource-collection> <web-resource-name>Protected resource</web-resource-name> <url-pattern>somePattern</url-pattern> <http-method>GET</http-method> <http-method>POST</http-method> </web-resource-collection> <user-data-constraint> <transport-guarantee>CONFIDENTIAL</transport-guarantee> </user-data-constraint> </security-constraint> and some other filters of richfaces. Problem is strange. If I try to access the web app from local's machine's browser it works fine but in remote machine's browser once it get into HTTP, all the forms of that page aswell as href stops working.(JSF,facelet is used.)

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  • The best JSF coding pattern for editing JPA entities using @RequestScoped only

    - by AlanObject
    I am in a project where I will write a lot of pages like this, so I want to use the most efficient (to write) coding pattern. Background: In the past I have used CODI's @ViewAccessScoped to preserve state between requests, and more recently I have started using flash scoped objects to save state. I can't use JSF @ViewScoped because I use CDI and they don't play well together. So I want to see if I can do this with only @RequestScoped backing beans. The page is designed like this (the p namespace is Primefaces): <f:metadata> <f:viewParam name="ID" value="#{backing.id}" /> </f:metadata> .... <h1>Edit Object Page</h1> <h:form id="formObj" rendered="#{backing.accessOK}"> <p:panelGrid columns="2"> <h:outputLabel value="Field #1:"/> <p:inputText value="#{backing.record.field1}" /> (more input fields) <h:outputLabel value="Action:" /> <h:panelGroup> <p:commandButton value="Save" action="#{backing.save}" /> <p:commandButton value="Cancel" action="backing.cancel" /> </h:panelGroup> </p:panelGrid> <p:messages showDetail="true" showSummary="true" /> </h:form> If the page is requested, the method accessOK() has the ability to keep the h:form from being rendered. Instead, the p:messages is shown with whatever FacesMessage(s) the accessOK() method cares to set. The pattern for the bean backing looks like this: @Named @RequestScoped public class Backing { private long id; private SomeJPAEntity record; private Boolean accessOK; public long getId() { return id; } public void setId(long value) { id = value; } public boolean accessOK() { if (accessOK != null) return accessOK; if (getRecord() == null) { // add a FacesMessage that explains the record // does not exist return accessOK = false; // note single = } // do any other access checks, such as write permissions return accessOK = true; } public SomeJPAEntity getRecord() { if (record != null) return record; if (getId() > 0) record = // get the record from DB else record = new SomeJPAEntity(); return record; } public String execute() { if (!accessOK()) return null; // bad edit // do other integrity checks here. If fail, set FacesMessages // and return null; if (getId() > 0) // merge the record back into the data base else // persist the record } } Here is what goes wrong with this model. When the Save button is clicked, a new instance of Backing is built, and then there are a lot of calls to the getRecord() getter before the setID() setter is called. So the logic in getRecord() breaks because it cannot rely on the id property being valid when it is called. When this was a @ViewAccessScoped (or ViewScoped) backing bean, then both the id and record properties are already set when the form is processed with the commandButton. Alternatively you can save those properties in flash storage but that has its own problems I want to avoid. So is there a way to make this programming model work within the specification?

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  • JSF 2.0 Problem

    - by Sarang
    I am doing a project where I am using JSF 2.0 & Primefaces UI Components. There is a tab view component with tabs, "Day","Week" & "Month". In all tab, I have to display Bar Charts in each. For the same, I am fetching three list using the following three method. In the following code, UpdateCountHelper is fetching the data from database. So, UpdateCountHelper is taking some time for fetching data. This is code for fetching lists : public List<UpdateCount> getDayUpdateCounts() { if (projectFlag == true) { if (displayFlag == 1) { dayUpdateCounts = UpdateCountHelper.getProjectUpdates(1); } else { dayUpdateCounts = UpdateCountHelper.getProjectUpdates(name, 1); } } else { dayUpdateCounts = UpdateCountHelper.getResourceUpdates(userName, 1); } return dayUpdateCounts; } public List<UpdateCount> getMonthUpdateCounts() { if (projectFlag == true) { if (displayFlag == 1) { monthUpdateCounts = UpdateCountHelper.getProjectUpdates(30); } else { monthUpdateCounts = UpdateCountHelper.getProjectUpdates(name, 30); } } else { monthUpdateCounts = UpdateCountHelper.getResourceUpdates(userName, 30); } return monthUpdateCounts; } public List<UpdateCount> getWeekUpdateCounts() { if (projectFlag == true) { if (displayFlag == 1) { weekUpdateCounts = UpdateCountHelper.getProjectUpdates(7); } else { weekUpdateCounts = UpdateCountHelper.getProjectUpdates(name, 7); } } else { weekUpdateCounts = UpdateCountHelper.getResourceUpdates(userName, 7); } return weekUpdateCounts; } This is code for UI of Bar Chart : <p:panel id="Chart"> <p:tabView dynamic="false" cache="false"> <p:tab title="Day"> <p:panel id="chartDayPanel"> <center> <h:outputText id="projectWiseDayText" rendered="#{systemUtilizationServiceBean.projectFlag}" value="Project Wise Day Update"/> <p:columnChart id="projectWiseDayUpdateChart" rendered="#{systemUtilizationServiceBean.projectFlag}" value="#{systemUtilizationServiceBean.dayUpdateCounts}" var="dayWiseUpdate" xfield="#{dayWiseUpdate.name}" height="200px" width="640px"> <p:chartSeries label="Project Wise Current Day Update" value="#{dayWiseUpdate.noUpdates}"/> </p:columnChart> <h:outputText id="resourceWiseDayText" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="Resource Wise Day Update"/> <p:columnChart id="resourceWiseDayUpdateChart" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="#{systemUtilizationServiceBean.dayUpdateCounts}" var="dayWiseResourceUpdate" xfield="#{dayWiseResourceUpdate.name}" height="200px" width="640px"> <p:chartSeries label="Resource Wise Current Day Update" value="#{dayWiseResourceUpdate.noUpdates}"/> </p:columnChart> </center> </p:panel> </p:tab> <p:tab title="Week"> <p:panel id="chartWeekPanel"> <center> <h:outputText id="projectWiseWeekText" rendered="#{systemUtilizationServiceBean.projectFlag}" value="Project Wise Week Update"/> <p:columnChart id="projectWiseWeekUpdateChart" rendered="#{systemUtilizationServiceBean.projectFlag}" value="#{systemUtilizationServiceBean.weekUpdateCounts}" var="weekWiseUpdate" xfield="#{weekWiseUpdate.name}" height="200px" width="640px"> <p:chartSeries label="Project Wise Current Week Update" value="#{weekWiseUpdate.noUpdates}"/> </p:columnChart> <h:outputText id="resourceWiseWeekText" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="Resource Wise Week Update"/> <p:columnChart id="resourceWiseWeekUpdateChart" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="#{systemUtilizationServiceBean.weekUpdateCounts}" var="weekWiseResourceUpdate" xfield="#{weekWiseResourceUpdate.name}" height="200px" width="640px"> <p:chartSeries label="Resource Wise Current Week Update" value="#{weekWiseResourceUpdate.noUpdates}"/> </p:columnChart> </center> </p:panel> </p:tab> <p:tab title="Month"> <p:panel id="chartMonthPanel"> <center> <h:outputText id="projectWiseMonthText" rendered="#{systemUtilizationServiceBean.projectFlag}" value="Project Wise Month Update"/> <p:columnChart id="projectWiseMonthUpdateChart" rendered="#{systemUtilizationServiceBean.projectFlag}" value="#{systemUtilizationServiceBean.monthUpdateCounts}" var="monthWiseUpdate" xfield="#{monthWiseUpdate.name}" height="200px" width="640px"> <p:chartSeries label="Project Wise Current Month Update" value="#{monthWiseUpdate.noUpdates}"/> </p:columnChart> <h:outputText id="resourceWiseMonthText" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="Resource Wise Month Update"/> <p:columnChart id="resourceWiseMonthUpdateChart" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="#{systemUtilizationServiceBean.monthUpdateCounts}" var="monthWiseResourceUpdate" xfield="#{monthWiseResourceUpdate.name}" height="200px" width="640px"> <p:chartSeries label="Resource Wise Current Month Update" value="#{monthWiseResourceUpdate.noUpdates}"/> </p:columnChart> </center> </p:panel> </p:tab> </p:tabView> </p:panel> Now, I have to display same data in other tabview with same tabs as mentioned above & only thing is now I have to display in Pie Chart. Now in pie chart, I am using the same lists. So, it will again fetch the data from database & waste time. To solve that problem I have created other three lists & have given only reference of those previous lists. So, now no database fetching occur. The Code for applying the reference is : public List<UpdateCount> getPieDayUpdateCounts() { pieDayUpdateCounts = dayUpdateCounts; return pieDayUpdateCounts; } public List<UpdateCount> getPieMonthUpdateCounts() { pieMonthUpdateCounts = monthUpdateCounts; return pieMonthUpdateCounts; } public List<UpdateCount> getPieWeekUpdateCounts() { pieWeekUpdateCounts = weekUpdateCounts; return pieWeekUpdateCounts; } But, over here the problem occurring is that only chart of which the tab is enable is displayed but the other remaining 2 tabs are not showing any chart. The code for UI is : <p:tabView dynamic="false" cache="false"> <p:tab title="Day"> <center> <p:panel id="pieChartDayPanel"> <h:outputText id="projectWiseDayPieChartText" rendered="#{systemUtilizationServiceBean.projectFlag}" value="Project Wise Day Update"/> <p:pieChart id="projectWiseDayUpdatePieChart" rendered="#{systemUtilizationServiceBean.projectFlag}" value="#{systemUtilizationServiceBean.dayUpdateCounts}" var="dayWisePieUpdate" categoryField="#{dayWisePieUpdate.name}" dataField="#{dayWisePieUpdate.noUpdates}" height="200" width="200"/> <h:outputText id="resourceWiseDayPieChartText" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="Resource Wise Day Update"/> <p:pieChart id="resourceWiseDayUpdatePieChart" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="#{systemUtilizationServiceBean.dayUpdateCounts}" var="dayWiseResourcePieUpdate" categoryField="#{dayWiseResourcePieUpdate.name}" dataField="#{dayWiseResourcePieUpdate.noUpdates}" height="200" width="200"/> </p:panel> </center> </p:tab> <p:tab title="Week"> <center> <p:panel id="pieChartWeekPanel"> <h:outputText id="projectWiseWeekPieChartText" rendered="#{systemUtilizationServiceBean.projectFlag}" value="Project Wise Week Update"/> <p:pieChart id="projectWiseWeekUpdatePieChart" rendered="#{systemUtilizationServiceBean.projectFlag}" value="#{systemUtilizationServiceBean.weekUpdateCounts}" var="weekWisePieUpdate" categoryField="#{weekWisePieUpdate.name}" dataField="#{weekWisePieUpdate.noUpdates}" height="200" width="200"/> <h:outputText id="resourceWiseWeekPieChartText" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="Resource Wise Week Update"/> <p:pieChart id="resourceWiseWeekUpdatePieChart" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="#{systemUtilizationServiceBean.weekUpdateCounts}" var="weekWiseResourcePieUpdate" categoryField="#{weekWiseResourcePieUpdate.name}" dataField="#{weekWiseResourcePieUpdate.noUpdates}" height="200" width="200"/> </p:panel> </center> </p:tab> <p:tab title="Month"> <center> <p:panel id="pieChartMonthPanel"> <h:outputText id="projectWiseMonthPieChartText" rendered="#{systemUtilizationServiceBean.projectFlag}" value="Project Wise Month Update"/> <p:pieChart id="projectWiseMonthUpdatePieChart" rendered="#{systemUtilizationServiceBean.projectFlag}" value="#{systemUtilizationServiceBean.monthUpdateCounts}" var="monthWisePieUpdate" categoryField="#{monthWisePieUpdate.name}" dataField="#{monthWisePieUpdate.noUpdates}" height="200" width="200"/> <h:outputText id="resourceWiseMonthPieChartText" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="Resource Wise Month Update"/> <p:pieChart id="resourceWiseMonthUpdatePieChart" rendered="#{systemUtilizationServiceBean.resourceFlag}" value="#{systemUtilizationServiceBean.monthUpdateCounts}" var="monthWiseResourcePieUpdate" categoryField="#{monthWiseResourcePieUpdate.name}" dataField="#{monthWiseResourcePieUpdate.noUpdates}" height="200" width="200"/> </p:panel> </center> </p:tab> </p:tabView> What should be the reason behind this ?

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  • Assigning outcome of another JSTL tag as value of one JSTL tag

    - by NoozNooz42
    I've got this, which is working: <c:choose> <c:when test="${sometest}"> Hello, world! </c:when> <c:otherwise> <fmt:message key="${page.title}" /> </c:otherwise> </c:choose> And I want to change it to this: <c:choose> <c:when test="${sometest}"> <c:set var="somevar" scope="page" value="Hello, world!"/> </c:when> <c:otherwise> <c:set var="somevar" scope="page" value="<fmt:message key="${page.title}">" </c:otherwise> </c:choose But of course the following line ain't correct: <c:set var="somevar" scope="page" value="<fmt:message key="${page.title}">" How can I assign to the somevar variable the string resulting from a call to fmt:message?

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  • Set HTML dropdown selected option using JSTL

    - by sarah
    In the same context i have another query ${productSubCategoryList} and the corresponding setting in request is like for(int i=0;i } here i have multiple select drop down ,even though i get the return value from for as two ,in the UI only one data is getting higlighted not the second one,What is wrong in the code ?

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  • PPR in tr:selectOneChoice does not work

    - by Nhut Le
    Hi, I have a simple testing page that test my PPR on a selectOneChoice component. when select a value from selectOnechoice 1, the selected value will display on a output label and also reset the selected value and the other selectOneChoice. However, it prints the selected values to the label correctly but it can't set the selected value for the other selectOneChoice. and Here are my page and my value change event method. <tr:form id="nhutForm"> <tr:selectOneChoice id="one" value="#{nhutTestBean.one}" autoSubmit="true" immediate="true" valueChangeListener="#{nhutTestBean.onMyValueChanged}"> <tr:selectItem label="0" value="0"/> <tr:selectItem label="1" value="1"/> <tr:selectItem label="2" value="2"/> <tr:selectItem label="3" value="3"/> </tr:selectOneChoice> <tr:selectOneChoice id="two" value="#{nhutTestBean.two}" partialTriggers="one"> <f:selectItems value="#{nhutTestBean.myList}"/> </tr:selectOneChoice> <tr:outputText id="nhutTextBox" value="hello: #{nhutTestBean.output}" partialTriggers="one"/></tr:form> and my valueChangeEvent method: public void onMyValueChanged(ValueChangeEvent event) { this.setOutput((String)event.getNewValue()); this.setTwo((String)event.getNewValue()); } One thing I realize is that it calls my setTwo twice, the first the set the correct values, but the second time set it to null so that nothing would be selected for the two drop down box. please help. thank you so much.

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