Question

我写了一个简单的JSF表单。问题是有一个我找不到的错误。当我打开主页并输入用户名和密码时，页面必须将我重定向到下一页，但这不会发生。你能帮我找到我的错吗？

这是主要的登录JSF页面

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns:h="http://java.sun.com/jsf/html">
    <head>
        <title>Login</title>
        <link rel="stylesheet" type="text/css" href="resources/css/style.css" />
        <script src="resources/js/cufon-yui.js" type="text/javascript"></script>
        <script src="resources/js/ChunkFive_400.font.js" type="text/javascript"></script>
        <script type="text/javascript">
            Cufon.replace('h1',{ textShadow: '1px 1px #fff'});
            Cufon.replace('h2',{ textShadow: '1px 1px #fff'});
            Cufon.replace('h3',{ textShadow: '0px 1px #000'});
            Cufon.replace('.back');
        </script>
    </head>
    <body>
        <div class="wrapper">
            <div class="content">
                <div id="form_wrapper" class="form_wrapper">                    
                    <form class="login active">
                        <h3><center><img src="resources/images/title.png"/></center></h3>
                        <div>
                            <label>Username:</label>
                            <h:inputText value="#{loginController.user}"/>
                            <span class="error">This is an error</span>
                        </div>
                        <div>
                            <label>Password:</label>
                            <h:inputSecret value="#{loginController.password}"/>
                            <span class="error">This is an error</span>
                        </div>
                        <div class="bottom">    
                                                        <h:commandButton label="Login" value="Login" action="#{loginController.user_compare}"/>
                            <div class="clear"></div>
                        </div>
                    </form>                 
                </div>
            </div>          
        </div>  
    </body>
</html>

这是托管bean

/** Bean for checking users and passwords.
 If the user enters the correct username and password 
 the user will be redirected to main.xhtml
 If not the page will refresh. */

package com.dx.sr_57;

import java.io.Serializable;
import javax.enterprise.context.SessionScoped;
import javax.inject.Named;


@Named("loginController")
@SessionScoped
public class user_check implements Serializable {
    private String user;
    private String password;

       public user_check(){
       }

       public user_check(String user, String password){
           super();
           this.user = user;
           this.password = password;
       }



       /** get the content of the variables from the JSF Login page */

       public String setUser(String newValue) { 
           user = newValue; 
           return user;
       }

       public String getUser(){
           return user;       
       }

       public String setPassword(String newValue) { 
           password = newValue; 
           return password;
       } 

       public String getPassword(){
           return password;
       }

       public String user_compare() {        
            return "success";        
       }
}

Answer 1

您需要使用<h:form>组件才能使JSF输入和命令起作用。

所以，替换

<form class="login active">
    ...
</form>

通过

<h:form styleClass="login active">
    ...
</h:form>

您还需要修复您的setter才能成为值得信赖的setter，否则您可能会遇到PropertyNotFoundException。

所以，替换

   public String setUser(String newValue) { 
       user = newValue; 
       return user;
   }

   public String setPassword(String newValue) { 
       password = newValue; 
       return password;
   }

通过

   public void setUser(String newValue) { 
       user = newValue; 
   }

   public void setPassword(String newValue) { 
       password = newValue; 
   }

对于具体问题，

无关，自1998年以来，HTML <center>标记已弃用，在XHTML严格中无效。去掉它。您需要在text-align: center上设置CSS <img>。

表格未提交

1 个答案: