你好:
web.xml我都是讓他自動產生的，沒有去改

現在textbox出來了
但打字後會出現

web.xml設定會跟JSF的Servlet是否要去剖析你的View有關阿。

另外，faces-config.xml裡面的類別的mapping要對阿，我看到你寫com.jj.a但是你程式中是com.jj.t3.a，所以伺服器找不到user這個bean。

web.xml內容

 <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <context-param>
        <param-name>javax.faces.PROJECT_STAGE</param-name>
        <param-value>Development</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <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>dispatcher</servlet-name>
        <url-pattern>*.htm</url-pattern>
    </servlet-mapping>
    <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>

java內容(我有改過，跟原本專案的不一樣)

package com.jj.t3;
import javax.inject.Named;
import javax.enterprise.context.Dependent;

@Named(value = "user2")
@Dependent
public class user2 {
private String userName2="1111";

    public String getUserName2() {
     return userName2;
    }

    public void setUserName2(String userName2) {
	this.userName2 = userName2;
    }
   
    public user2() {
	System.out.println("123456789!");
    }
    
}

那faces-config.xml呢？現在改成怎樣？

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC
 "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.0//EN"
 "http://java.sun.com/dtd/web-facesconfig_1_0.dtd">

<faces-config>
   <navigation-rule>
        <from-view-id>/t3/index.xhtml</from-view-id>
        <navigation-case>
            <from-outcome>login</from-outcome>
            <to-view-id>/t3/b.xhtml</to-view-id>
        </navigation-case>
    </navigation-rule>
       
       
    <managed-bean>
        <managed-bean-name>user2</managed-bean-name>
         <managed-bean-class>
             com.jj.t3
         </managed-bean-class>
        <managed-bean-scope>session</managed-bean-scope>
    </managed-bean>
</faces-config>

大概就是改成這樣

https://drive.google.com/open?id=0B0SyQeRkRiM4SFlZWnpHS0xhWUk
以上我的專案更新

com.jj.t3.user2啦...managed-bean-class要寫完整的class name。

fillano
謝謝指正，我有改了
但變成....

index.xhtml

 <h:body>
        Hello from Facelets
        <br />
        #{user2.userName2}
        <h:form>    
            <h:inputText value="#{user2.userName2}"/>
            <h:commandButton value="send" action="login"/>
         </h:form>  
    </h:body>

user2.java

package com.jj.t3;
import javax.inject.Named;
import javax.enterprise.context.Dependent;

@Named(value = "user2")
@Dependent
public class user2 {
private String userName2="1111";
    public String getUserName2() {
     return userName2;
    }

    public void setUserName2(String userName2) {
	this.userName2 = userName2;
    }
   
    public user2() {
	System.out.println("123456789!");
    }
    
}

一直卡關，快崩饋啦....