JSF小示例《Core JavaServer Faces 3rd Edition》代码

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《Core JavaServer Faces 3rd Edition》中第四章的代码：
LocaleChanger.java

package com.corejsf;

import java.io.Serializable;
import java.util.Locale;
import javax.faces.bean.ManagedBean; 
import javax.faces.bean.SessionScoped; 
import javax.faces.context.FacesContext;

@ManagedBean
@SessionScoped
public class LocaleChanger implements Serializable {
   public String germanAction() {
      FacesContext context = FacesContext.getCurrentInstance();
      context.getViewRoot().setLocale(Locale.GERMAN);
      return null;
   }
   
   public String englishAction() {
      FacesContext context = FacesContext.getCurrentInstance();
      context.getViewRoot().setLocale(Locale.ENGLISH);
      return null;
   }   
   
   public String chineseAction() {
      FacesContext context = FacesContext.getCurrentInstance();
      context.getViewRoot().setLocale(Locale.CHINESE);
      return null;
   }
}

UserBean.java

package com.corejsf;

import java.io.Serializable;
import javax.faces.bean.ManagedBean; 
import javax.faces.bean.SessionScoped; 

@ManagedBean(name="user")
@SessionScoped
public class UserBean implements Serializable {
   private String name;
   private String password;
   private String aboutYourself;
   
   public String getName() { return name; } 
   public void setName(String newValue) { name = newValue; }
   
   public String getPassword() { return password; }
   public void setPassword(String newValue) { password = newValue; }
   
   public String getAboutYourself() { return aboutYourself; }
   public void setAboutYourself(String newValue) { aboutYourself = newValue; }
}

index.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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:h="http://java.sun.com/jsf/html"
	xmlns:f="http://java.sun.com/jsf/core">
	<h:head>
		<title>#{msgs.indexWindowTitle}</title>
	</h:head>
	<h:body>

		<h:form>
			<h:commandLink action="#{localeChanger.germanAction}">
				<h:graphicImage library="images" name="de_flag.gif"
					style="border: 0px; margin-right: 1em;" />
			</h:commandLink>
			<h:commandLink action="#{localeChanger.englishAction}">
				<h:graphicImage library="images" name="en_flag.gif"
					style="border: 0px; margin-right: 1em;" />
			</h:commandLink>
			<h:commandLink action="#{localeChanger.chineseAction}">
				<h:graphicImage library="images" name="cn_flag.gif"
					style="border: 0px; margin-right: 1em;" />
			</h:commandLink>
			<p>
				<h:outputText value="#{msgs.indexPageTitle}"
					style="font-style: italic; font-size: 1.3em" />
			</p>
			<h:panelGrid columns="2">
            #{msgs.namePrompt}
            <h:inputText value="#{user.name}" />         
            #{msgs.passwordPrompt}
            <h:inputSecret value="#{user.password}" />         
            #{msgs.tellUsPrompt}
            <h:inputTextarea value="#{user.aboutYourself}" rows="5"
					cols="35" />
			</h:panelGrid>
			<h:commandButton value="#{msgs.submitPrompt}" action="success" />
		</h:form>
	</h:body>
</html>

thankYou.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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:h="http://java.sun.com/jsf/html">
   <h:head>
      <title>#{msgs.thankYouWindowTitle}</title>
   </h:head>
   <h:body>
      <h:outputText value="#{msgs.namePrompt}" style="font-style: italic"/>
      #{user.name}
      <br/>
      <h:outputText value="#{msgs.aboutYourselfPrompt}" style="font-style: italic"/>
      <br/>
      <pre>#{user.aboutYourself}</pre>
   </h:body>
</html>

faces-config.xml

<?xml version="1.0"?>
<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">
   <navigation-rule>
      <navigation-case>
         <from-outcome>success</from-outcome>
         <to-view-id>/thankYou.xhtml</to-view-id>
      </navigation-case>
   </navigation-rule>
   
   <application>
      <locale-config>
         <default-locale>en</default-locale>
         <supported-locale>zh</supported-locale>
         <supported-locale>de</supported-locale>
      </locale-config>
      <resource-bundle>
         <base-name>com.corejsf.messages</base-name>
         <var>msgs</var>
      </resource-bundle>
   </application>
</faces-config>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
   xmlns="http://java.sun.com/xml/ns/javaee"
   xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
   xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
      http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
   version="2.5">
   <servlet>
      <servlet-name>Faces Servlet</servlet-name>
      <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
   </servlet>
   <servlet-mapping>
      <servlet-name>Faces Servlet</servlet-name>
      <url-pattern>/faces/*</url-pattern>
   </servlet-mapping>
   <welcome-file-list>
      <welcome-file>faces/index.xhtml</welcome-file>
   </welcome-file-list>
   <context-param>
      <param-name>javax.faces.PROJECT_STAGE</param-name>
      <param-value>Development</param-value>
   </context-param>
</web-app>

运行图片：