1
제가 만든이 샘플 jsf 프로젝트에서이 문제가 발생했습니다. 관리 빈은 인스턴스화되지 않습니다. Bean 클래스 :.JSF 2 관리 빈이 인스턴스화되지 않습니다.
@ManagedBean(name="loginMB")
@RequestScoped
public class LoginMB extends AbstractMB {
private static final long serialVersionUID = -8523135776442886000L;
@ManagedProperty("#{userMB}")
private UserMB userMB;
//getters and setters
public String login() {
UserSupport userSupport = new UserSupportImpl();
User user = userSupport.isValidLogin(email, password);
if (user != null) {
getUserMB().setUser(user);
FacesContext context = FacesContext.getCurrentInstance();
HttpServletRequest request = (HttpServletRequest) context
.getExternalContext().getRequest();
request.getSession().setAttribute("user", user);
return "loggedIn";
//return "/pages/protected/index.xhtml";
}
displayErrorMessageToUser("Check your email/password");
return null;
}
}
ManagedBean은 주석과 RequestScope 주석이
수입 javax.faces.bean에서 가져온 *;
이 난 콩 이상 사용했습니다 어떻게,
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
</h:head>
<h:body>
<p>#{bundle.loginHello}</p>
<h:form>
<p:growl showDetail="false" life="3000" />
<h:panelGrid columns="2">
<h:outputLabel value="#{bundle.loginUserName}" />
<h:inputText value="#{loginMB.email}" label="Email" id="email" required="true">
<f:validateLength minimum="6" />
</h:inputText>
<h:outputLabel value="#{bundle.loginPassword}" />
<h:inputSecret value="#{loginMB.password}" label="Password" id="senha" required="true" autocomplete="off" >
<f:validateLength minimum="6" />
</h:inputSecret>
</h:panelGrid>
<p:commandButton action="#{loginMB.login}" value="Log in" ajax="false" />
</h:form>
</h:body>
</html>
다른 관리 빈
@SessionScoped
@ManagedBean(name = "userMB")
public class UserMB implements Serializable {
public static final String INJECTION_NAME = "#{userMB}";
private static final long serialVersionUID = 1L;
private User user;
.......
}
예외 :
javax.el.PropertyNotFoundException: /login.xhtml @14,83 value="#{loginMB.email}": Target Unreachable, identifier 'loginMB' resolved to null
at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:100)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:95)
얼굴-config.xml에
,691 특별히 자신의 속성 또는 메서드 중 하나를 호출하지 않는 한 363,210<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_2_1.xsd"
version="2.1">
<application>
<resource-bundle>
<base-name>messages</base-name>
<var>bundle</var>
</resource-bundle>
<message-bundle>messages</message-bundle>
</application>
<navigation-rule>
<from-view-id>/login.xhtml</from-view-id>
<navigation-case>
<from-action>#{loginMB.login}</from-action>
<from-outcome>loggedIn</from-outcome>
<to-view-id>/index.xhtml</to-view-id>
<redirect />
</navigation-case>
</navigation-rule>
<!-- <managed-bean>
<managed-bean-name>loginMB</managed-bean-name>
<managed-bean-class> com.sample.jsfjpa.beans.LoginMB</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
</managed-bean>
<managed-bean>
<managed-bean-name>userMB</managed-bean-name>
<managed-bean-class> com.sample.jsfjpa.beans.UserMB</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean> -->
</faces-config>
을 아마 때문에 범위입니다 콩의, 나는 모른다. SessionScoped를 만들고 시도해보십시오. –
@KorayTugay, 나는 그것을 시험해 보았다. 그러나 운이 없다. 그런데 나는 질문을 업데이트했다. 콩이 인스턴스화 된 것 같지 않습니다. – bluelabel
빈에 액세스하는 방법을 보여주십시오. 생성자가 호출 될 때 필드는 주입되지 않습니다. – atamanroman