Question

由于某种原因，我的xhtml页面找不到我的CDI托管bean。我已经看到了很多关于这个问题的资源（Identifying and solving javax.el.PropertyNotFoundException: Target Unreachable），但我仍然没有解决这个问题。

这是我正在注入的Bean。

import java.io.Serializable;

import javax.faces.bean.ApplicationScoped;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import javax.inject.Named;
import javax.enterprise.context.SessionScoped;


@SessionScoped
@Named
public class MyMB implements Serializable{

    private Integer max;

private static final long serialVersionUID = 1L;


    public MyMB(){
        super();
        max = 1;
    }

    public void setMax(Integer max) {
        this.max = max; 
    }

    public Integer getMax(){
        return this.max;
    }

    public String priority(){
        return "priority";
    }
}

这是我注射的地方。

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

@Named
@SessionScoped
public class MyBean implements Serializable {

    private static final long serialVersionUID = 1L;

    String name = "myBean";

    @Inject
    private MyMB myMB;

    MyMB getMyMB(){
        return myMB;
    }
}

这是我的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:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html">

<h:head>
    <h:outputStylesheet library="css" name="todo.css" />
    <title>bean settings</title>
</h:head>

<body>
    <h:outputText value="Edit myBean"/>
    ManagedBean is: #{myBean.name}
    <h:form>
        <h:inputText value="#{myBean.myMB.max}"
 converterMessage="Only numbers please" />
        <h:commandButton value="Speichern" type="submit" action="#{myBean.myMB.priority}" />
    </h:form>   

</body>
</html>

由于某种原因，xhtml页面似乎找不到myBean类我收到此错误消息。

/myPage.xhtml @ 20,105 value =“＃{myBean.myMB.max}”：目标无法访问，标识符'myBean'已解析为null

CDI托管bean：目标无法访问，标识符'myBean'已解析为null

0 个答案: