Question

我正在尝试启动一个小型JSF应用程序但没有成功。在Glassfish上尝试过但我遇到了以下错误（Trying to use CDI on Glassfish 4 results in javax.el.PropertyNotFoundException: Target Unreachable, identifier 'indexMB' resolved to null）。

所以我尝试将应用程序迁移到TomEE 1.5.2，但是虽然在控制台中没有显示错误，但页面没有加载JSF组件，如下图所示：

JSF not loade

任何帮助都非常有用。

按照我的设置和我的文件：

TomEE 1.5.2
Primefaces 3.5
commons-fileupload 1.3
commons-io 2.4

** index.xhtml

<html ...>

<f:loadBundle basename="i18n" var="bundle" />
<h:head>
    <title>#{bundle['index_title']}</title>
</h:head>
<h:body>
    #{bundle['index_appname']}
    <br />
    <h:form id="frmIndex">
        <p:panelGrid columns="2">
            <p:outputLabel for="user" value="#{bundle['lblUser']}" />
            <p:inputText id="user" value="#{indexMB.user}" />

            <p:outputLabel for="password" value="#{bundle['lblPassword']}" />
            <p:password id="password" value="#{indexMB.password}" />
        </p:panelGrid>
        <p:commandButton action="#{indexMB.loginTest}" value="#{bundle['btn_login']}" />
    </h:form> 
</h:body>

** IndexMB.java

@ManagedBean ("indexMB")
@RequestScoped
public class IndexMB {

private String password;
private String user;

public IndexMB() {
}

public String loginTest(){
   ...
}

// getters and setters
}

** web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 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-app_3_0.xsd">
<context-param>
    <param-name>javax.faces.PROJECT_STAGE</param-name>
    <param-value>Development</param-value>
</context-param>
<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<session-config>
    <session-timeout>
        30
    </session-timeout>
</session-config>
<welcome-file-list>
    <welcome-file>faces/index.xhtml</welcome-file>
</welcome-file-list>

** faces-config.xml

<?xml version='1.0' encoding='UTF-8'?>
<faces-config version="2.2"
    xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd">

<application>
    <locale-config>
        <default-locale>pt_BR</default-locale>
        <supported-locale>en</supported-locale>
        <supported-locale>fr</supported-locale>
    </locale-config>
</application>

** beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans 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/beans_1_0.xsd">
</beans>

Answer 1

页面未加载JSF组件

页面加载组件，否则您的Facelets代码中的<input type="text" />（以及其他组件）不会出现<p:inputText id="user" value="#{indexMB.user}" />。问题似乎出现在#{bundle['<whatever>']}配置中。请注意，此问题与GlassFish和TomEE无关，只与国际化配置有关。

对于JSF 2.x，我按照此Q / A中的说明进行了说明：https://stackoverflow.com/a/4830669/1065197以及提供更多信息的链接：Internationalization in JSF with UTF-8 encoded properties files。根据该教程，我做了一个测试应用程序。简而言之：

在faces-config.xml中配置捆绑包

<application>
    <locale-config>
        <default-locale>pt_BR</default-locale>
        <supported-locale>en</supported-locale>
        <supported-locale>fr</supported-locale>
    </locale-config>
    <resource-bundle>
                <!--
                    Here should be the full name of the package and the 
                    name of the properties files with the i18n text.
                    Example (from a personal project):
                    edu.home.store.view.idioma.tienda
                    Where the properties files are:
                    edu.home.store.view.idioma.tienda_es.properties
                    edu.home.store.view.idioma.tienda_en.properties
                -->
                <!-- <base-name>edu.home.store.view.idioma.tienda</base-name> -->
                <!-- assumming your file is directly posted in class folder -->
                <base-name>i18n</base-name>
                <!--
                    Name of the variable to use in Facelets files.
                -->
        <var>bundle</var>
    </resource-bundle>
</application>

创建一个@SessionScoped bean，用于处理您的网页中使用的区域设置。

@ManagedBean
@SessionScoped
public class LocaleBean implements Serializable {

    private static final long serialVersionUID = 89794215646544L;

    private Locale locale;

    public LocaleBean() {

    }

    @PostConstruct
    public void init() {
        //give the default value here
        locale = new Locale("pt_BR");
        FacesContext.getCurrentInstance().getViewRoot().setLocale(locale);
    }

    public Locale getLocale() {
        return locale;
    }

    public String getLenguaje() {
        return locale.getLanguage();
    }

    public void setLenguaje(String lenguaje) {
        locale = new Locale(lenguaje);
        FacesContext.getCurrentInstance().getViewRoot().setLocale(locale);
    }
}

使用<f:view>包裹视图的所有内容并定义要使用的语言。优选地，这应该在主模板中。例如：
```
<f:view locale="#{localeBean.locale}">
    
</f:view>
```

除了这个问题，我强烈建议您将明显自动生成的Faces Servlet映射配置从/faces/*更改为*.xhtml：

<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.xhtml</url-pattern>
</servlet-mapping>

更多信息：

JSF Facelets: Sometimes I see the URL is .jsf and sometimes .xhtml. Why?

在TomEE 1.5.2上没有加载JSF页面

1 个答案: