el

How to use && in EL boolean expressions in Facelets?

由 时光总嘲笑我的痴心妄想 提交于 2019-12-02 15:41:54
I am having a little trouble figuring out how to do and's on EL expressions in Facelets. So basically I have: <h:outputText id="Prompt" value="Fobar" rendered="#{beanA.prompt == true && beanB.currentBase !=null}" /> But I keep getting: Error Traced[line: 69] The entity name must immediately follow the '&' in the entity reference. Facelets is a XML based view technology. The & is a special character in XML representing the start of an entity like & which ends with the ; character. You'd need to either escape it, which is ugly: rendered="#{beanA.prompt == true && beanB.currentBase != null}" or

JavaScript variable in EL expression

由 情到浓时终转凉″ 提交于 2019-12-02 13:44:29
In my servlet I'm sending many values back to JSP page by for cycle like this: protected void doGet(HttpServletRequest request, HttpServletResponse response){ for (int i = 0; i < veryBigNumber; i++){ if (something){ request.setAttribute("value" + i, "true"); else{ request.setAttribute("value" + i, "false"); } } And in JSP I would like to read them in the same way with JavaScript and EL: <script> for (var i=0; i < veryBigNumber; i++){ if ("${value + (i)}" == "true"){ doSomething; } else{ doSomethingElse; } } </sctipt> The problem is I don't know how to make the variable i a part of EL

Calling EL function with EL variable like ${fn:toLowerCase(${Person.name})} doesn't work

由 跟風遠走 提交于 2019-12-02 12:45:22
问题 I am passing a bean: Person to my jsp page, and I would like to print his name in lower case. To do this, I'm calling jstl's function toLowerCase , but this doesn't work: <c:out value="${fn:toLowerCase(${Person.name})}" Instead, I have to set the variable <c:set var="personName" value="${Person.name}"/> <c:out value="${fn:toLowerCase(personName)}" Is there a more syntactically friendly way of doing this? 回答1: Nesting EL expressions is illegal syntax. That should also have been hinted in some

JSF EL expressions to check empty string in propery file?

由 百般思念 提交于 2019-12-02 10:41:59
I have to check if my property file is empty for certain label based on that I have to render the element but even when the label is empty i still get the element displaying key: <h:panelGroup rendered="#{not empty I18N['key_hint_message'] }"> <h:outputLabel id="hint_label" value="#{I18N['key_label_hint']} "></h:outputLabel> <h:outputText value="#{I18N['key_hint_message']}" ></h:outputText> </h:panelGroup> You can use ResourceBundle#containsKey() for this. <h:panelGroup rendered="#{I18N.containsKey('key_hint_message')}"> <h:outputLabel value="#{I18N['key_label_hint']}" /> <h:outputText value="

javax.el.PropertyNotFoundException: The class ' does not have a readable property 'preference'

由 你离开我真会死。 提交于 2019-12-02 10:09:10
I have been through almost all the related questions on SO but couldn't find the answer because I don't have the issues that were the cause of errors for other still I've same error result. I have implemented a primefaces selectBooleanButton element and included the bean code as per that only. The error means that the system is unable to read the property of the managedBean but I have proper getter/setter methods as it should be for boolean property. Below is the code for reference: View <html xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://xmlns.jcp.org/jsf/facelets" xmlns:h="http:/

How to access JSP implicit objects like (request , response) in Java

由 喜你入骨 提交于 2019-12-02 09:28:35
问题 How to pass JSP implicit objects like (request, response) in Java. I want to access JSP Implicit Objects in Java code. Please suggest how to achieve this? My Java code is: package test.here; import java.sql.*; import java.util.*; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.ibm.commerce.server.WcsApp; import com.ibm.commerce.server.JSPHelper; public class SomeBean { String punchOutRes = null; HttpServletResponse response;

org.apache.jasper.JasperException: #{…} is not allowed in template text [duplicate]

由 时间秒杀一切 提交于 2019-12-02 08:33:43
问题 This question already has answers here : #{…} is not allowed in template text (3 answers) Closed 3 years ago . I was trying to display a simple message on browser screen with JSP and Spring MVC. <h2>#{message}</h2> However, it threw the below exception: org.apache.jasper.JasperException: /Ekle/DomainEkle.jsp (line: 9, column: 6) #{...} is not allowed in template text org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42) org.apache.jasper.compiler.ErrorDispatcher

javax.el.PropertyNotWritableException: value=“”: Illegal Syntax for Set Operation [duplicate]

由 混江龙づ霸主 提交于 2019-12-02 07:40:37
问题 This question already has an answer here : javax.el.PropertyNotWritableException: /index.xhtml @29,118 value=“”: Illegal Syntax for Set Operation (1 answer) Closed 2 years ago . I have this form: <h:form> <h:outputLabel value="Entrez un id du compte a supprimer" for="id"/> <h:inputText id="id" value=""/> <h:commandButton id="supprimer" value="Supprimer" action="#{compteBancaireMBean.supprimer}"/> </h:form> And this action method: public String supprimer() { gestionnaireDeCompteBancaire

JSTL EL accessor translation priority when get and is both exist?

由 ﹥＞﹥吖頭↗ 提交于 2019-12-02 07:37:20
问题 This is sorta' a two-part question. I have a person object with a char attribute on it called "active". Person has a getActive() method that returns a char as expected. In my JSTL EL, I have the following: <c:if test="${person.active == '1'}">Active</c:if> This never passes. My understanding is that quoted literals in JSTL are strings (regardless of single or double quote) and that the char type is being retained from the getActive call, so these two values are not equal when getActive()

Eclipse won't autocomplete bean methods in EL when I use javax.annotation.ManagedBean

由 感情迁移 提交于 2019-12-02 07:07:46
问题 I created an application using JSF and Spring and I used the annotations @repository, @service @component and @autowired but when I am coding the Facelet file the beans cannot show up, can any one help me faces-config.xml: <?xml version="1.0" encoding="utf-8"?> <faces-config xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd" version="2.0
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