jsf - javax.el.PropertyNotWritableException: /kaizenViewMANUF.xhtml @105,193 filterValue="#{kaizenView.currentUserSite()}": 集合操作的非法语法

Question

在我的应用程序中，我试图获取一个值并将其插入到 primefaces 数据表列的过滤器字段中，以便在页面加载时对其进行过滤。我通过在数据表列上使用“filterValue”属性来做到这一点。添加过滤器值属性并进行测试时，它可以工作，但会引发错误。我真的不在乎它会引发错误，但这是应用程序的主页，所以它会用这个错误填充日志，所以我觉得我应该解决它。我正在使用 jQuery 在填充数据表过滤器字段时进行实际过滤。

xhtml：

<p:column headerText="Location" sortBy="#{kaizen.site}" filterValue="#{kaizenView.currentUserSite()}" rendered="#{!kaizenView.isDealer()}" filterBy="#{kaizen.site}" style="width:80px;">
    <h:outputText value="#{kaizen.site}"/>
</p:column>

控制器中被调用的方法：

public String currentUserSite() {
    String userLocation = currentUser.currentUserlocationCity();
    String prettyLocation = null;
    if (userLocation.equals("East Syracuse")) {
        prettyLocation = "Syracuse";
    } else if (userLocation.equals("Greene")) {
        prettyLocation = "Greene";
    } else if (userLocation.equals("Muscatine")) {
        prettyLocation = "Muscatine";
    } else {
        prettyLocation = "Greene";
    }
    return prettyLocation;
}

if语句中调用的方法

public String currentUserlocationCity() {
        currentUserLocationCity = thisActiveUser.getLocationCity();
        return currentUserLocationCity;
    }

堆栈：

10:57:54,120 INFO  [javax.enterprise.resource.webcontainer.jsf.context] (default task-34) javax.el.PropertyNotWritableException: /kaizenViewMANUF.xhtml @105,193 filterValue="#{kaizenView.currentUserSite()}": Illegal Syntax for Set Operation: javax.el.PropertyNotWritableException: /kaizenViewMANUF.xhtml @105,193 filterValue="#{kaizenView.currentUserSite()}": Illegal Syntax for Set Operation
    at com.sun.faces.facelets.el.TagValueExpression.setValue(TagValueExpression.java:136)
    at org.primefaces.component.datatable.DataTable.processUpdates(DataTable.java:319)
    at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:577)
    at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
    at org.primefaces.component.api.UIData.visitTree(UIData.java:874)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700)
    at javax.faces.component.UIForm.visitTree(UIForm.java:371)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700)
    at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:403)
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:266)
    at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:63)
    at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219)
    at org.omnifaces.context.OmniPartialViewContext.processPartial(OmniPartialViewContext.java:124)
    at javax.faces.component.UIViewRoot.processUpdates(UIViewRoot.java:1252)
    at com.sun.faces.lifecycle.UpdateModelValuesPhase.execute(UpdateModelValuesPhase.java:78)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:654)
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86)
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)
    at org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
    at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)
    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
    at io.undertow.server.handlers.DisableCacheHandler.handleRequest(DisableCacheHandler.java:33)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:51)
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
    at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:56)
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72)
    at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
    at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282)
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261)
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80)
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172)
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:199)
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: javax.el.PropertyNotWritableException: Illegal Syntax for Set Operation
    at com.sun.el.parser.AstValue.setValue(AstValue.java:228)
    at com.sun.el.ValueExpressionImpl.setValue(ValueExpressionImpl.java:294)
    at org.jboss.weld.el.WeldValueExpression.setValue(WeldValueExpression.java:64)
    at org.jboss.weld.el.WeldValueExpression.setValue(WeldValueExpression.java:64)
    at com.sun.faces.facelets.el.TagValueExpression.setValue(TagValueExpression.java:131)
    ... 53 more

10:57:54,122 WARNING [javax.enterprise.resource.webcontainer.jsf.lifecycle] (default task-34) javax.el.PropertyNotWritableException: /kaizenViewMANUF.xhtml @105,193 filterValue="#{kaizenView.currentUserSite()}": Illegal Syntax for Set Operation

如果您需要查看任何其他代码，请告诉我。提前致谢！

标签： jsfprimefaces