2016-04-23 77 views
0

我想知道这是否可能。我有一个登录表单,可以接收用户的ID和密码。如果它在后端检出,则会显示另一个表单。到目前为止,我实际上是将登录详细信息发送到另一个xhtml页面进行处理。但是,如果用户错误,页面仍会显示。JSF用AJAX显示表格

这是我的代码

的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://xmlns.jcp.org/jsf/html"> 
<h:head> 
    <title>Index</title> 
</h:head> 
<h:body> 
    <h:form> 
     <p>Login</p> 
     <h:inputText value="#{jsfbean.username}"/> 
     <h:inputText value="#{jsfbean.password}"/> 
     <h:commandButton action="#{jsfbean.message}" value="Results Page"/> 
    </h:form> 
</h:body> 
</html> 

导航规则

<?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"> 


<navigation-rule> 
    <from-view-id>>index.xhtml</from-view-id> 
    <navigation-case> 
     <from-action>#{jsfbean.getMessage}</from-action> 
     <from-outcome>Success</from-outcome> 
     <to-view-id>result.xhtml</to-view-id> 
    </navigation-case> 
    <navigation-case> 
     <from-action>#{jsfbean.getMessage}</from-action> 
     <from-outcome>Fail</from-outcome> 
     <to-view-id>index.xhtml</to-view-id> 
    </navigation-case> 
</navigation-rule> 

JSF豆

public String getMessage() { 
    if(getUser(this.username,this.password)==true){ 
     this.userID = aUser.getUserid(); 
     this.secqn = aUser.getSecqn(); 
     this.secans = aUser.getSecans(); 
     return "Success"; 
    }else{ 
     return "Fail"; 
    } 
} 

Structure

回答

0

当用户输入用户名和密码时,您只是重定向到另一个页面。

1)你需要修改你的行动:

<h:form> 
     <p>Login</p> 
     <h:inputText value="#{jsfbean.username}"/> 
     <h:inputText value="#{jsfbean.password}"/> 
     <h:commandButton action="#{jsfbean.authenticateUser}" value="Results Page"/> 
    </h:form> 

2)写操作方法你的bean里面

public String authenticateUser(){ 
    if (username!=null&&password!=null) { 
     // Write your business logic here 
     if (username.equals("username")&&password.equals("password")) { 
      return "SUCCESS";// In your case it is result 
     } 
    } 
    return "LOGIN"; 
} 

3)添加导航规则

<navigation-rule> 
      <from-view-id>/pages/*</from-view-id> 
      <navigation-case> 
       <from-outcome>LOGIN</from-outcome> 
       <to-view-id>/pages/public/login.xhtml</to-view-id> 
      </navigation-case> 
      <navigation-case> 
       <from-action>#{authenticateController.authenticateUser}</from-action> 
       <from-outcome>LOGIN</from-outcome> 
       <to-view-id>/pages/public/login.xhtml</to-view-id> 
      </navigation-case> 
      <navigation-case> 
       <from-action>#{authenticateController.authenticateUser}</from-action> 
       <from-outcome>SUCCESS</from-outcome> 
       <to-view-id>/pages/private/home.xhtml</to-view-id> 
       <redirect/> 
      </navigation-case> 
</navigation-rule> 
+0

谢谢!但是,这是JSF 1的导航规则,还是我可以使用它2? – JianYA

+0

您也可以将它用于JSF 2。 – Unknown

+0

对不起,我正在执行此操作,并收到错误javax.el.MethodNotFoundException:/index.xhtml @ 13,80 action =“#{jsfbean.message}”:Method not found:stateless.jsfbean @ 573e86b7.message()。我编辑了我的问题。 – JianYA