JSF commandButton 操作返回正确的值，但导航规则不适用

发布于 2024-10-06 19:18:12 字数 2646 浏览 0 评论 0原文

标题几乎说明了一切。我有一个名为 login.jsp 的页面：

<f:view>
  <html>
    <head>
      <meta http-equiv="Content-Type"
            content="text/html; charset=windows-1250"/>
      <title>Bejelentkezés</title>
      <!--<script language="JavaScript" src="login.js" type="text/javascript"></script>-->
    </head>
    <body>
      <h:form>
        <h:messages/>
        <p>
          Ur&aacute;n Tanulm&aacute;nyi Rendszer
        </p>
        <p>
          Login: <h:inputText binding="#{backing_admin.loginLoginInput}"
                       id="loginLoginInput"/>
        </p>
        <p>
          Jelsz&oacute;: <h:inputSecret binding="#{backing_admin.loginPasswordInput}"
                                       id="loginPasswordInput"/>
        </p>
        <p>
          <h:commandButton value="Bejelentkezés"
                           binding="#{backing_admin.loginLoginButton}"
                           id="loginLoginButton"
                           action="#{backing_admin.loginAction}"/>
        </p>
      </h:form>
    </body>
  </html>
</f:view>
<%-- oracle-jdev-comment:auto-binding-backing-bean-name:backing_admin--%>

和一些导航规则：

<faces-config version="1.2" xmlns="http://java.sun.com/xml/ns/javaee">
  <managed-bean>
    <managed-bean-name>backing_admin</managed-bean-name>
    <managed-bean-class>hu.elte.pgy2.BACNAAI.view.backing.BackingAdmin</managed-bean-class>
    <managed-bean-scope>session</managed-bean-scope>
    <!--oracle-jdev-comment:managed-bean-jsp-link:1admin.jsp-->
    <!--oracle-jdev-comment:managed-bean-jsp-link:1login.jsp-->
  </managed-bean>
  <navigation-rule>
    <from-view-id>/login.jsp</from-view-id>
    <navigation-case>
      <from-action>#{backing_admin.loginAction}</from-action>
      <from-outcome>"ADMIN"</from-outcome>
      <to-view-id>/admin.jsp</to-view-id>
      <redirect/>
    </navigation-case>
    <navigation-case>
      <from-action>#{backing_admin.loginAction}</from-action>
      <from-outcome>"STUDENT"</from-outcome>
      <to-view-id>/student.jsp</to-view-id>
      <redirect/>
    </navigation-case>
  </navigation-rule>
</faces-config>

单击 login.jsp 上的按钮会调用支持 bean 中的操作，该操作返回它应该返回的值，但我被重定向回 login.jsp 而不是页面在导航规则中定义。什么可能导致这种情况发生？

原文

Title pretty much says it all. I have a page called login.jsp:

<f:view>
  <html>
    <head>
      <meta http-equiv="Content-Type"
            content="text/html; charset=windows-1250"/>
      <title>Bejelentkezés</title>
      <!--<script language="JavaScript" src="login.js" type="text/javascript"></script>-->
    </head>
    <body>
      <h:form>
        <h:messages/>
        <p>
          Urán Tanulmányi Rendszer
        </p>
        <p>
          Login: <h:inputText binding="#{backing_admin.loginLoginInput}"
                       id="loginLoginInput"/>
        </p>
        <p>
          Jelszó: <h:inputSecret binding="#{backing_admin.loginPasswordInput}"
                                       id="loginPasswordInput"/>
        </p>
        <p>
          <h:commandButton value="Bejelentkezés"
                           binding="#{backing_admin.loginLoginButton}"
                           id="loginLoginButton"
                           action="#{backing_admin.loginAction}"/>
        </p>
      </h:form>
    </body>
  </html>
</f:view>
<%-- oracle-jdev-comment:auto-binding-backing-bean-name:backing_admin--%>

And some navigation rules:

<faces-config version="1.2" xmlns="http://java.sun.com/xml/ns/javaee">
  <managed-bean>
    <managed-bean-name>backing_admin</managed-bean-name>
    <managed-bean-class>hu.elte.pgy2.BACNAAI.view.backing.BackingAdmin</managed-bean-class>
    <managed-bean-scope>session</managed-bean-scope>
    <!--oracle-jdev-comment:managed-bean-jsp-link:1admin.jsp-->
    <!--oracle-jdev-comment:managed-bean-jsp-link:1login.jsp-->
  </managed-bean>
  <navigation-rule>
    <from-view-id>/login.jsp</from-view-id>
    <navigation-case>
      <from-action>#{backing_admin.loginAction}</from-action>
      <from-outcome>"ADMIN"</from-outcome>
      <to-view-id>/admin.jsp</to-view-id>
      <redirect/>
    </navigation-case>
    <navigation-case>
      <from-action>#{backing_admin.loginAction}</from-action>
      <from-outcome>"STUDENT"</from-outcome>
      <to-view-id>/student.jsp</to-view-id>
      <redirect/>
    </navigation-case>
  </navigation-rule>
</faces-config>

Clicking the button on login.jsp invokes the action in the backing bean, which returns the value it's supposed to, but I get redirected back to login.jsp instead of the page defined in the navigation rule. What could cause this to happen?

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