java - 为什么我的 JSF 示例不起作用？

转载作者：行者123 更新时间：2023-12-02 04:26:57

我正在观看有关“使用 JSF 的动态 Web 应用程序”的教程，尽管我有与导师相同的代码，但还是遇到了问题。他的例子效果很好。

我认为我有几个问题。最大的问题是，我的 JSF 示例不起作用，如果我更改代码，我总是必须重新启动 Eclipse。完整发布不起作用。

控制台输出

23:18:14,562 INFO  [org.jboss.modules] (main) JBoss Modules version 1.4.3.Final
23:18:14,695 INFO  [org.jboss.msc] (main) JBoss MSC version 1.2.6.Final
23:18:14,747 INFO  [org.jboss.as] (MSC service thread 1-6) WFLYSRV0049: WildFly Full 9.0.1.Final (WildFly Core 1.0.1.Final) starting
23:18:15,417 INFO  [org.jboss.as.controller.management-deprecated] (ServerService Thread Pool -- 10) WFLYCTL0028: Attribute 'enabled' in the resource at address '/subsystem=datasources/data-source=ExampleDS' is deprecated, and may be removed in future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation.
23:18:15,418 INFO  [org.jboss.as.controller.management-deprecated] (ServerService Thread Pool -- 8) WFLYCTL0028: Attribute 'job-repository-type' in the resource at address '/subsystem=batch' is deprecated, and may be removed in future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation.
23:18:15,435 INFO  [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) WFLYDS0015: Re-attempting failed deployment JSF_Contacts.war
23:18:15,440 INFO  [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) WFLYDS0004: Found JSF_Contacts.war in deployment directory. To trigger deployment create a file called JSF_Contacts.war.dodeploy
23:18:15,455 INFO  [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0039: Creating http management service using socket-binding (management-http)
23:18:15,466 INFO  [org.xnio] (MSC service thread 1-4) XNIO version 3.3.1.Final
23:18:15,472 INFO  [org.xnio.nio] (MSC service thread 1-4) XNIO NIO Implementation Version 3.3.1.Final
23:18:15,501 INFO  [org.jboss.as.security] (ServerService Thread Pool -- 53) WFLYSEC0002: Activating Security Subsystem
23:18:15,501 WARN  [org.jboss.as.txn] (ServerService Thread Pool -- 54) WFLYTX0013: Node identifier property is set to the default value. Please make sure it is unique.
23:18:15,502 INFO  [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 38) WFLYCLINF0001: Activating Infinispan subsystem.
23:18:15,505 INFO  [org.jboss.as.naming] (ServerService Thread Pool -- 46) WFLYNAM0001: Activating Naming Subsystem
23:18:15,512 INFO  [org.jboss.as.security] (MSC service thread 1-3) WFLYSEC0001: Current PicketBox version=4.9.2.Final
23:18:15,511 INFO  [org.wildfly.extension.io] (ServerService Thread Pool -- 37) WFLYIO001: Worker 'default' has auto-configured to 16 core threads with 128 task threads based on your 8 available processors
23:18:15,514 INFO  [org.jboss.as.webservices] (ServerService Thread Pool -- 56) WFLYWS0002: Activating WebServices Extension
23:18:15,547 INFO  [org.jboss.as.jsf] (ServerService Thread Pool -- 44) WFLYJSF0007: Activated the following JSF Implementations: [main]
23:18:15,547 INFO  [org.jboss.as.connector] (MSC service thread 1-7) WFLYJCA0009: Starting JCA Subsystem (IronJacamar 1.2.4.Final)
23:18:15,551 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-8) WFLYUT0003: Undertow 1.2.9.Final starting
23:18:15,564 INFO  [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 33) WFLYJCA0004: Deploying JDBC-compliant driver class org.h2.Driver (version 1.3)
23:18:15,565 INFO  [org.wildfly.extension.undertow] (ServerService Thread Pool -- 55) WFLYUT0003: Undertow 1.2.9.Final starting
23:18:15,571 INFO  [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-1) WFLYJCA0018: Started Driver service with driver-name = h2
23:18:15,571 INFO  [org.jboss.as.naming] (MSC service thread 1-1) WFLYNAM0003: Starting Naming Service
23:18:15,570 INFO  [org.jboss.as.mail.extension] (MSC service thread 1-3) WFLYMAIL0001: Bound mail session [java:jboss/mail/Default]
23:18:15,697 INFO  [org.wildfly.extension.undertow] (ServerService Thread Pool -- 55) WFLYUT0014: Creating file handler for path C:\wildfly-9.0.1.Final/welcome-content
23:18:15,731 INFO  [org.jboss.remoting] (MSC service thread 1-4) JBoss Remoting version 4.0.9.Final
23:18:15,762 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-5) WFLYUT0012: Started server default-server.
23:18:15,768 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-5) WFLYUT0018: Host default-host starting
23:18:15,913 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-8) WFLYUT0006: Undertow HTTP listener default listening on localhost/127.0.0.1:8080
23:18:16,034 INFO  [org.jboss.as.server.deployment.scanner] (MSC service thread 1-7) WFLYDS0013: Started FileSystemDeploymentService for directory C:\wildfly-9.0.1.Final\standalone\deployments
23:18:16,036 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-4) WFLYSRV0027: Starting deployment of "JSF_Contacts.war" (runtime-name: "JSF_Contacts.war")
23:18:16,190 INFO  [org.jboss.ws.common.management] (MSC service thread 1-6) JBWS022052: Starting JBoss Web Services - Stack CXF Server 5.0.0.Final
23:18:16,211 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-8) WFLYJCA0001: Bound data source [java:jboss/datasources/ExampleDS]
23:18:16,223 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: Failed to start service jboss.serverManagement.controller.management.http: org.jboss.msc.service.StartException in service jboss.serverManagement.controller.management.http: WFLYSRV0083: Failed to start the http-interface service
    at org.jboss.as.server.mgmt.UndertowHttpManagementService.start(UndertowHttpManagementService.java:269)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: java.net.BindException: Address already in use: bind
    at org.jboss.as.domain.http.server.ManagementHttpServer.start(ManagementHttpServer.java:160)
    at org.jboss.as.server.mgmt.UndertowHttpManagementService.start(UndertowHttpManagementService.java:235)
    ... 5 more
Caused by: java.net.BindException: Address already in use: bind
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:437)
    at sun.nio.ch.Net.bind(Net.java:429)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:67)
    at org.xnio.nio.NioXnioWorker.createTcpConnectionServer(NioXnioWorker.java:182)
    at org.xnio.XnioWorker.createStreamConnectionServer(XnioWorker.java:243)
    at org.jboss.as.domain.http.server.ManagementHttpServer.start(ManagementHttpServer.java:147)
    ... 6 more

23:18:16,339 INFO  [org.jboss.weld.deployer] (MSC service thread 1-3) WFLYWELD0003: Processing weld deployment JSF_Contacts.war
23:18:16,385 INFO  [org.hibernate.validator.internal.util.Version] (MSC service thread 1-3) HV000001: Hibernate Validator 5.1.3.Final
23:18:16,520 INFO  [org.jboss.weld.deployer] (MSC service thread 1-8) WFLYWELD0006: Starting Services for CDI deployment: JSF_Contacts.war
23:18:16,540 INFO  [org.jboss.weld.Version] (MSC service thread 1-8) WELD-000900: 2.2.14 (Final)
23:18:16,561 INFO  [org.jboss.weld.deployer] (MSC service thread 1-8) WFLYWELD0009: Starting weld service for deployment JSF_Contacts.war
23:18:17,198 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-8) MSC000001: Failed to start service jboss.deployment.unit."JSF_Contacts.war".WeldStartService: org.jboss.msc.service.StartException in service jboss.deployment.unit."JSF_Contacts.war".WeldStartService: Failed to start service
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type SalutationHandler with qualifiers @Default
  at injection point [BackedAnnotatedField] @Inject private training.data.ContactData.salutationHandler
  at training.data.ContactData.salutationHandler(ContactData.java:0)

    at org.jboss.weld.bootstrap.Validator.validateInjectionPointForDeploymentProblems(Validator.java:359)
    at org.jboss.weld.bootstrap.Validator.validateInjectionPoint(Validator.java:281)
    at org.jboss.weld.bootstrap.Validator.validateGeneralBean(Validator.java:134)
    at org.jboss.weld.bootstrap.Validator.validateRIBean(Validator.java:155)
    at org.jboss.weld.bootstrap.Validator.validateBean(Validator.java:518)
    at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:68)
    at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:66)
    at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:60)
    at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:53)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    ... 3 more

23:18:17,201 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
    ("core-service" => "management"),
    ("management-interface" => "http-interface")
]) - failure description: {"WFLYCTL0080: Failed services" => {"jboss.serverManagement.controller.management.http" => "org.jboss.msc.service.StartException in service jboss.serverManagement.controller.management.http: WFLYSRV0083: Failed to start the http-interface service
    Caused by: java.lang.RuntimeException: java.net.BindException: Address already in use: bind
    Caused by: java.net.BindException: Address already in use: bind"}}
23:18:17,202 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "JSF_Contacts.war")]) - failure description: {"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"JSF_Contacts.war\".WeldStartService" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"JSF_Contacts.war\".WeldStartService: Failed to start service
    Caused by: org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type SalutationHandler with qualifiers @Default
  at injection point [BackedAnnotatedField] @Inject private training.data.ContactData.salutationHandler
  at training.data.ContactData.salutationHandler(ContactData.java:0)
"}}
23:18:17,224 INFO  [org.jboss.as.server] (ServerService Thread Pool -- 34) WFLYSRV0010: Deployed "JSF_Contacts.war" (runtime-name : "JSF_Contacts.war")
23:18:17,225 INFO  [org.jboss.as.controller] (Controller Boot Thread) WFLYCTL0183: Service status report
WFLYCTL0186:   Services which failed to start:      service jboss.deployment.unit."JSF_Contacts.war".WeldStartService: org.jboss.msc.service.StartException in service jboss.deployment.unit."JSF_Contacts.war".WeldStartService: Failed to start service
      service jboss.serverManagement.controller.management.http: org.jboss.msc.service.StartException in service jboss.serverManagement.controller.management.http: WFLYSRV0083: Failed to start the http-interface service

23:18:17,299 INFO  [org.jboss.as] (Controller Boot Thread) WFLYSRV0063: Http management interface is not enabled
23:18:17,300 INFO  [org.jboss.as] (Controller Boot Thread) WFLYSRV0054: Admin console is not enabled
23:18:17,300 ERROR [org.jboss.as] (Controller Boot Thread) WFLYSRV0026: WildFly Full 9.0.1.Final (WildFly Core 1.0.1.Final) started (with errors) in 2915ms - Started 274 of 478 services (21 services failed or missing dependencies, 221 services are lazy, passive or on-demand)
23:18:17,319 INFO  [org.jboss.weld.deployer] (MSC service thread 1-4) WFLYWELD0010: Stopping weld service for deployment JSF_Contacts.war
23:18:17,336 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-8) WFLYSRV0028: Stopped deployment JSF_Contacts.war (runtime-name: JSF_Contacts.war) in 18ms
23:18:17,367 INFO  [org.jboss.as.server] (DeploymentScanner-threads - 1) WFLYSRV0009: Undeployed "JSF_Contacts.war" (runtime-name: "JSF_Contacts.war")
23:18:17,368 INFO  [org.jboss.as.controller] (DeploymentScanner-threads - 1) WFLYCTL0183: Service status report
WFLYCTL0184:    New missing/unsatisfied dependencies:
      service jboss.deployment.unit."JSF_Contacts.war".WeldBootstrapService (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.ScriptFreeTLV".WeldInstantiator, service jboss.deployment.unit."JSF_Contacts.war".CdiValidatorFactoryService] 
      service jboss.deployment.unit."JSF_Contacts.war".WeldStartService (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.ScriptFreeTLV".WeldInstantiator, service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService, service jboss.deployment.unit."JSF_Contacts.war".component."javax.faces.webapp.FacetTag".WeldInstantiator, service jboss.deployment.unit."JSF_Contacts.war".CdiValidatorFactoryService] 
      service jboss.deployment.unit."JSF_Contacts.war".component."com.sun.faces.config.ConfigureListener".CREATE (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."com.sun.faces.config.ConfigureListener".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."com.sun.faces.config.ConfigureListener".START (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService, service jboss.deployment.unit."JSF_Contacts.war".deploymentCompleteService, service jboss.undertow.deployment.default-server.default-host./JSF_Contacts] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.faces.webapp.FacesServlet".CREATE (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."javax.faces.webapp.FacesServlet".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.faces.webapp.FacesServlet".START (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.faces.webapp.FacesServlet".WeldInstantiator (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."javax.faces.webapp.FacesServlet".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.faces.webapp.FacetTag".START (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.PermittedTaglibsTLV".CREATE (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.PermittedTaglibsTLV".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.PermittedTaglibsTLV".START (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.PermittedTaglibsTLV".WeldInstantiator (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.PermittedTaglibsTLV".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.ScriptFreeTLV".CREATE (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.ScriptFreeTLV".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.ScriptFreeTLV".START (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
      service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.ScriptFreeTLV".WeldInstantiator (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.ScriptFreeTLV".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldInitialListener".CREATE (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldInitialListener".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldInitialListener".START (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
      service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldInitialListener".WeldInstantiator (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldInitialListener".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldTerminalListener".CREATE (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldTerminalListener".START] 
      service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldTerminalListener".START (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
      service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldTerminalListener".WeldInstantiator (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldTerminalListener".START] 
      service jboss.deployment.unit."JSF_Contacts.war".ee.ComponentRegistry (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
      service jboss.deployment.unit."JSF_Contacts.war".jndiDependencyService (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.ScriptFreeTLV".START, service jboss.deployment.unit."JSF_Contacts.war".component."javax.servlet.jsp.jstl.tlv.PermittedTaglibsTLV".START, service jboss.deployment.unit."JSF_Contacts.war".component."javax.faces.webapp.FacetTag".START, service jboss.deployment.unit."JSF_Contacts.war".component."org.jboss.weld.servlet.WeldInitialListener".START, WFLYCTL0208: ... and 3 more ] 
      service jboss.server.global-request-controller.control-point."JSF_Contacts.war".undertow (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
      service jboss.undertow.deployment.default-server.default-host./JSF_Contacts (missing) dependents: [service jboss.deployment.unit."JSF_Contacts.war".deploymentCompleteService] 
      service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.codec (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
      service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.session (missing) dependents: [service jboss.undertow.deployment.default-server.default-host./JSF_Contacts.UndertowDeploymentInfoService] 
WFLYCTL0186:   Services which failed to start:      service jboss.deployment.unit."JSF_Contacts.war".WeldStartService
      service jboss.serverManagement.controller.management.http: org.jboss.msc.service.StartException in service jboss.serverManagement.controller.management.http: WFLYSRV0083: Failed to start the http-interface service

23:18:22,242 INFO  [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) WFLYDS0004: Found JSF_Contacts.war in deployment directory. To trigger deployment create a file called JSF_Contacts.war.dodeploy

ContactData.java

package training.data;

import java.io.Serializable;

import javax.annotation.PostConstruct;
import javax.enterprise.context.SessionScoped;
import javax.inject.Inject;
import javax.inject.Named;

@SuppressWarnings("serial")
@Named
@SessionScoped
public class ContactData implements Serializable {

    private String firstName;
    private String lastName;
    private String email;
    private String phone;
    private String message;
    private String salutation;

    @Inject
    private SalutationHandler salutationHandler;

    @PostConstruct
    private void initialize() {
        salutation = salutationHandler.getSalutations().get(0);
    }

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public String getSalutation() {
        return salutation;
    }

    public void setSalutation(String salutation) {
        this.salutation = salutation;
    }

}

ContactsController.java

package training.data;

import javax.enterprise.context.Dependent;
import javax.inject.Named;

@Named
@Dependent
public class ContactsController {

    public String showData() {
        return "data";
    }

    public String inputData() {
        return "index";
    }

}

index.xhtml

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:h="http://java.sun.com/jsf/html">

<h:head>

    <meta http-equiv="X-UA-Compatible" content="IE-edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />

    <link rel="stylesheet" href="css/bootstrap.css" />
    <link rel="stylesheet" href="css/bootstrap-theme.css" />

</h:head>
<body>

    <div class="container">
        <div class="jumbotron">
            <h1>Kontakt</h1>
            <div>Bitte füllen Sie das Formular vollständig aus!</div>
        </div>

        <h:form>
            <div class="form-group">
                <h:outputLabel value="Andrede" for="salutation" />
                <h:selecOneMenu value="#{contactData.salutation}" id="salutation"
                    styleClass="form-control">
                    <f:selectItems value="#salutationHandler.salutations" />
                </h:selecOneMenu>
            </div>

            <div class="form-group">
                <h:outputLabel value="Ihr Nachname" for="lastName" />
                <h:inputText value="#{contactData.lastName}" id="lastName"
                    styleClass="form-control" />
            </div>

            <div class="form-group">
                <label>Ihr Vorname</label>
                <h:inputText value="#{contactData.firstName}"
                    styleClass="form-control" />
            </div>

            <div class="form-group">
                <label>Ihre E-Mail</label>
                <h:inputText value="#{contactData.email}" styleClass="form-control" />
            </div>

            <div class="form-group">
                <label>Phone</label>
                <h:inputText value="#{contactData.phone}" styleClass="form-control" />
            </div>

            <div class="form-group">
                <label>Ihre Nachricht</label>
                <h:inputTextarea value="#{contactData.message}" rows="7"
                    styleClass="form-control" />
            </div>

            <div class="row">
                <div class="col-lg-12">
                    <h:commandButton action="#{contactsController.showData()}"
                        value="Absenden" styleClass="btn btn-success" />
                </div>
            </div>
        </h:form>
    </div>

    <script src="js/jquery-2.1.4.min.js"></script>
    <script src="js/bootstrap.min.js"></script>
</body>
</html>

<小时/>

编辑

解决方案

原因是导入错误。我必须导入

javax.ejb.Singleton;

而不是

javax.inject.Singleton;

最佳答案

仔细阅读堆栈跟踪...尤其是第一个跟踪和由消息引起的。您将看到:java.net.BindException:地址已在使用中。

这是什么意思？这意味着在启动过程中，jboss尝试启动一个服务，而这个服务需要使用一个端口，但不幸的是，在你的计算机上这个端口已经被某个进程使用了。

根据您的评论(即“需要重新启动eclipse”)，看来这个进程可能是jboss的先前实例。看看当你停止 JBoss 时发生了什么......那里一定有问题，因为它没有正确停止(即仍然有东西在运行并且所需的端口没有释放) p>

关于java - 为什么我的 JSF 示例不起作用？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32029499/

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