el

问题 I'm trying to run JSF on Google AppEngine, it was running smoothly till I need to use some expression languages in the XHTML page. <li class="#{cc.attrs.currentPage == 'gerar' ? 'active' : ''}"> I tried a lot of different configurations. Locally on AppEngine SDK server it works perfectly, but in production the page does not open. Anyone has a project with this environment and characteristics? What is the right maven dependencies to run EL expressions? Appegine target version: 1.9.4 <!--JSF-->

问题 I'm trying to create an el variable that is only available inside a tag so that it would be something like: <mytaglib:mytag> Foo is ${foo} </mytaglib:mytag> I've followed the documentation I can find for creating a nested el variable, however, ${foo} is available after the end of mytag. Shortened version of the .tld file is: <?xml version="1.0" encoding="UTF-8" ?> <taglib version="2.0" xmlns="http://java.sun.com/xml/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi

问题 Only the last value of the model is displayed as EL, so the existing value is not displayed. The BoardController code for that. @RequestMapping("viewPage.do") public String viewPage(HttpSession session,HttpServletRequest request, HttpServletResponse response,Model model, @RequestParam(value="board_idx", defaultValue="0") int board_idx) throws IOException,IllegalStateException { // View comment list for this post List<HashMap<String, Object>> commentList= bService.getBoardForComment(boardData

问题 Looking at the article here, there is an example of how to use a TemplateProcessor to resolve JSP views using Jersey. Apparently this class has been deprecated now and replaced by ViewProcessor<T>. I am somewhat confused about how to implement either (preferably the newer one since it isn't deprecated); what goes in as the template argument? How can I implement one to simply resolve jsps in /WebContent/WEB-INF/views/* and also evaluate the expression language of the returned view? The other

问题 I recently discovered DataTables (http://datatables.net/) and have been playing around with its features. I'm running into a bit of trouble with the search feature. I'm using DataTables in a JSP webapp, where I use expression language (EL) to pull and display information stored in the session. Here is a sample of my code: <table id="list" class="table table-hover results"> <thead> <tr> <th>Name</th> </tr> </thead> <tbody> <c:forEach var="elt" items="${listCandidates}"> <tr> <td> <form action=

问题 Is there some tag or function that allows to get the maximum value of a collection? I konw I can do a for loop for that, but a one liner would be better. 回答1: I don't think you can do that with jstl or el. The easiest is using forEach jstl tag. The simple reason why there are no tags for finding the maximum value of a collection is because your collection could be anything. How would the jvm find the maximum value for a collections of "Student" objects. 来源： https://stackoverflow.com/questions

问题 What happens with EL statements in a view build time in c:forEach loop. <c:forEach var="v" values="#{bean.values}"> <p:inputText value="#{v.name}" /> </c:forEach> class Bean { public List<Pojo> getValues(); } class Pojo { public void setName (String); public String getName(); } How will be this code evaluated for render? To: <p:inputText value="John Smith"> or <p:inputText value="#{pojo.name}" > 回答1: For UI components, only id and binding attributes are immediately evaluated during view build

问题 is there any way to perform a ui:repeat inside a javascript? this is what i'm trying to do. var point; <ui:repeat value="#{testController.allItems}" var="item"> point = new google.maps.LatLng(item.latitude,item.longitude); createMarker(point, item.name, item.desc); </ui:repeat> testController.allItems returns a list of entities with latitude and longitude and other values, i'm trying to do a store locator using google maps. createMarker adds marker to the map. or is there a better way to do

问题 I know that by replacing the el-api.jar in the lib folder of the Tomcat 6 directory with an EL 2.2 capable version that it is possible to utilize the power of EL 2.2 in Tomcat 6. See the following questions: http://code2inspire.wordpress.com/2010/11/05/how-to-enable-el-2-2-on-tomcat-6/ http://www.javaplex.com/blog/for-jsf-2-how-to-enable-el-2-2-on-tomcat-6/ I have an app that I need to deploy for a public facing site and I want to do it as cheaply as possible. The best bargain for me would be

问题 Is there any possibility in EL to invoke a method of a stateless session bean without wrapping in a backing bean? Wrapping the method call in a backing bean produces redundant code and makes performing BU cumbersome as one has to wrap every single method. 回答1: You can just annotate it with CDI's @Named . E.g. @Named @Stateless public class FooService { // ... } The properness of the design is questionable. It's IMHO tight coupling. I'd use this approach at most for extremely small webapps or