1

我正在尝试在 Tomcat 服务器上实现注册页面，但未创建支持 bean，当我单击提交按钮时，出现以下错误。

原因：javax.el.PropertyNotFoundException：目标无法访问，标识符“registerBean”在 org.apache.el.parser.AstValue.getType 的 org.apache.el.parser.AstValue.getTarget(AstValue.java:98) 处解析为 null (AstValue.java:82) 在 org.apache.el.ValueExpressionImpl.getType(ValueExpressionImpl.java:172) 在 com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:98)

这是RegisterBean.java

package com.please.beans;

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


@Named
@SessionScoped
public class RegisterBean implements Serializable{

    private String emailAddress="3234234";
    private String userName;
    private String password;

    public String getEmailAddress() {
        return emailAddress;
    }

    public void setEmailAddress(String emailAddress) {
        this.emailAddress = emailAddress;
    }

    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;
    }

    public void doLogin(){
        System.out.println("Test sucessful");

    }

}

这是signup.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>Facelet Title</title>
    </h:head>
    <h:body>
        Hello from Facelets
        <h:form>
            <h:outputText value="E-mail address" ></h:outputText>
            <h:inputText id="emailaddress" value="#{registerBean.emailAddress}" required="true"></h:inputText>
            <h:outputText value="Password"></h:outputText>
            <h:inputSecret id="password" value="#{registerBean.password}"></h:inputSecret>

            <h:outputText value="#{registerBean.emailAddress}"></h:outputText>
            <h:commandButton action="#{registerBean.doLogin()}"></h:commandButton>

        </h:form>
    </h:body>

</html>
4

1 回答 1

-3

更改注释，如：

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;

@ManagedBean(name="registerBean")
@SessionScoped
public class RegisterBean implements Serializable{
//Your code here
..........................
}
于 2014-01-20T20:09:50.230 回答