2013-06-18 24 views
1

重定向到下一页我正在使用带有primefaces的jsf开发web应用程序,我使用了一个登录操作和2个xhtml页面。当我登录它调用操作类,它不会返回到下一个xhtml页面使用jsf

重定向页面中的问题我已经使用primefaces 3.2版本jar文件,并且我已经在项目构面中使用jstl配置了jsf。

我登录XHTML页面

<!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" 
     xmlns:ui="http://java.sun.com/jsf/facelets" 
     xmlns:p="http://primefaces.org/ui"> 

<h:head></h:head> 
<body> 
    <h:form styleClass="loginPanelStyle"> 
     <p:panel id="panel" header="Login"> 

     <p:messages id="msgs"/> 

     <h:panelGrid columns="3"> 
      <h:outputLabel for="firstname" value="UserName" /> 
      <p:inputText id="firstname" value="#{home.username}" required="true" label="UserName"> 
       <f:validateLength minimum="2" /> 
      </p:inputText> 
      <p:message for="firstname" display="icon"/> 

      <h:outputLabel for="surname" value="Password" /> 
      <p:inputText id="surname" value="#{home.password}" label="Password" required="true"> 
       <f:validateLength minimum="2" /> 
       <p:ajax update="msgSurname" event="keyup" /> 
      </p:inputText> 
      <p:message for="surname" id="msgSurname" display="icon"/> 

     </h:panelGrid> 

     <p:commandButton id="btn" value="Login" update="panel" actionListener="#{home.validateUser}"/> 
    </p:panel> 
    </h:form> 
</body> 
</html> 

我的Action类

package com.cation.action; 

import java.util.List; 

import javax.persistence.EntityManager; 
import javax.persistence.EntityManagerFactory; 
import javax.persistence.Persistence; 
import javax.persistence.Query; 

import logon.Users; 

public class LoginAction { 

    private String username; 

    private String password; 

    private static final String PERSISTENCE_UNIT_NAME = "Cation"; 

    private static EntityManagerFactory factory; 

    @SuppressWarnings("unchecked") 
    public String validateUser() throws Exception { 
     factory = Persistence.createEntityManagerFactory(PERSISTENCE_UNIT_NAME); 
     EntityManager em = factory.createEntityManager(); 
     // Read the existing entries and write to console 
     Query q = em.createQuery("SELECT u FROM Users u where u.Login='"+username+"'"); 
     List<Users> userList = q.getResultList(); 
     Users user = (Users) userList.get(0); 

     if(user == null){ 
      return "error"; 
     } 
     return "home_page"; 
    } 

    public String getUsername() { 
     return username; 
    } 

    public void setUsername(String username) { 
     this.username = username; 
    } 

    public String getPassword() { 
     return password; 
    } 

    public void setPassword(String password) { 
     this.password = password; 
    } 
} 

我的web.xml文件

<?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_3_0.xsd" id="WebApp_ID" version="3.0"> 
    <display-name>Cation</display-name> 
    <context-param> 
    <param-name>javax.faces.PROJECT_STAGE</param-name> 
    <param-value>Development</param-value> 
    </context-param> 
    <welcome-file-list> 
    <welcome-file>faces/login.xhtml</welcome-file> 
    </welcome-file-list> 
    <listener> 
    <listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class> 
    </listener> 
    <context-param> 
    <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name> 
    <param-value>resources.application</param-value> 
    </context-param> 
    <context-param> 
    <description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description> 
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name> 
    <param-value>client</param-value> 
    </context-param> 
    <context-param> 
    <description> 
    This parameter tells MyFaces if javascript code should be allowed in 
    the rendered HTML output. 
    If javascript is allowed, command_link anchors will have javascript code 
    that submits the corresponding form. 
    If javascript is not allowed, the state saving info and nested parameters 
    will be added as url parameters. 
    Default is 'true'</description> 
    <param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name> 
    <param-value>true</param-value> 
    </context-param> 
    <context-param> 
    <description> 
    If true, rendered HTML code will be formatted, so that it is 'human-readable' 
    i.e. additional line separators and whitespace will be written, that do not 
    influence the HTML code. 
    Default is 'true'</description> 
    <param-name>org.apache.myfaces.PRETTY_HTML</param-name> 
    <param-value>true</param-value> 
    </context-param> 
    <context-param> 
    <param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name> 
    <param-value>false</param-value> 
    </context-param> 
    <context-param> 
    <description> 
    If true, a javascript function will be rendered that is able to restore the 
    former vertical scroll on every request. Convenient feature if you have pages 
    with long lists and you do not want the browser page to always jump to the top 
    if you trigger a link or button action that stays on the same page. 
    Default is 'false' 
</description> 
    <param-name>org.apache.myfaces.AUTO_SCROLL</param-name> 
    <param-value>true</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> 
    <url-pattern>*.jsf</url-pattern> 
    <url-pattern>*.xhtml</url-pattern> 
    </servlet-mapping> 
</web-app> 

和我的脸,配置XML文件

<?xml version='1.0' encoding='UTF-8'?> 
<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_1_2.xsd" 
    version="1.2"> 
    <navigation-rule> 
     <navigation-case> 
      <from-outcome>login</from-outcome> 
      <to-view-id>/login.xhtml</to-view-id> 
     </navigation-case> 
    </navigation-rule> 
    <managed-bean> 
     <managed-bean-name>home</managed-bean-name> 
     <managed-bean-class>com.cation.action.LoginAction</managed-bean-class> 
     <managed-bean-scope>request</managed-bean-scope>  
    </managed-bean> 
    <navigation-rule> 
     <navigation-case> 
      <from-outcome>home_page</from-outcome> 
      <to-view-id>/pages/homePage.xhtml</to-view-id> 
     </navigation-case> 
    </navigation-rule> 
    <managed-bean> 
     <managed-bean-name>user</managed-bean-name> 
     <managed-bean-class>com.cation.action.UserAction</managed-bean-class> 
     <managed-bean-scope>request</managed-bean-scope>  
    </managed-bean> 
    <navigation-rule> 
     <navigation-case> 
      <from-outcome>addUser</from-outcome> 
      <to-view-id>/pages/addUser.xhtml</to-view-id> 
     </navigation-case> 
    </navigation-rule> 
    <navigation-rule> 
     <navigation-case> 
      <from-outcome>successUser</from-outcome> 
      <to-view-id>/pages/success.xhtml</to-view-id> 
     </navigation-case> 
    </navigation-rule> 
</faces-config> 

任何一个可以帮助我解决这个问题

回答

2

要与p:commandButton使用导航,你需要使用action属性,而不是actionListener

更改按钮,这样的:

<p:commandButton id="btn" value="Login" update="panel" action="#{home.validateUser}"/> 

其他的一切在你的代码似乎罚款。

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