如何在JSF 2.0中重定向 [英] How can I redirect in JSF 2.0
问题描述
我想从JSF页面中的链接重定向，该怎么做?
I want to redirect from a link in a JSF page, how can I do it?
在HTML中，我可以为此使用<a>标记.但是在JSF中，我使用<h:outputLink>或<h:commandLink>，因为它们可以有条件地呈现.我想将链接重定向到同一应用程序中的其他页面或外部URL.我如何用JSF做到这一点?如何在<h:commandLink>中使用action?
In HTML I can use <a> tag for this. But in JSF I use <h:outputLink> or <h:commandLink> as they can be conditionally rendered. I want redirect link to other page in same application or to an external URL. How can I do it with JSF? How can I use action in <h:commandLink> for this?
推荐答案
假定您要重定向到位于Web根文件夹中的some.xhtml:
Assuming that you'd like to redirect to some.xhtml which is placed in web root folder:
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您可以继续使用纯HTML.
You can just continue using plain HTML.
<a href="#{request.contextPath}/some.xhtml">go to some page</a>
对于条件渲染，只需将其包装在<ui:fragment> .
For conditional rendering, just wrap it in an <ui:fragment>.
或在隐式导航中使用<h:link>.
<h:link outcome="/some" value="go to some page" />
注意:无需添加上下文路径，也无需包含FacesServlet映射.
Note: no need to prepend context path nor to include FacesServlet mapping.
或将<h:commandLink>与?faces-redirect=true一起使用.
<h:commandLink action="/some?faces-redirect=true" value="go to some page" />
注意:无需添加上下文路径，也无需包含FacesServlet映射.
Note: no need to prepend context path nor to include FacesServlet mapping.
或使用<h:outputLink>，但是您需要指定上下文路径.
Or use <h:outputLink>, but you need to specify context path.
<h:outputLink value="#{request.contextPath}/some.xhtml" value="go to some page" />
重定向到外部URL已在以下重复项中得到解答:重定向到外部URL在JSF中.
Redirecting to an external URL is already answered in this duplicate: Redirect to external URL in JSF.
- How to navigate in JSF? How to make URL reflect current page (and not previous one)
- When should I use h:outputLink instead of h:commandLink?
- JSF implicit vs. explicit navigation
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