가장 많이 묻는 면접 질문과 답변 & 온라인 테스트
면접 준비, 온라인 테스트, 튜토리얼, 라이브 연습을 위한 학습 플랫폼

집중 학습 경로, 모의고사, 면접 준비 콘텐츠로 실력을 키우세요.

WithoutBook은 주제별 면접 질문, 온라인 연습 테스트, 튜토리얼, 비교 가이드를 하나의 반응형 학습 공간으로 제공합니다.

라이브러리 검색
Prepare Interview
질문하기

모의 시험

홈페이지로 설정

이 페이지 북마크

이메일 주소 구독

JSF 면접 질문과 답변

관련 차이점

관련 차이점

JSF vs JSPJSF 1.2 vs JSF 2.0JSF 2.0 vs JSF 2.1
Struts vs JSF

Ques 11. How to pass a parameter to the JSF application using the URL string?

if you have the following URL: http://your_server/your_app/product.jsf?id=777, you access the passing parameter id with the following lines of java code:

FacesContext fc = FacesContext.getCurrentInstance();
String id = (String) fc.getExternalContext().getRequestParameterMap().get("id");
From the page, you can access the same parameter using the predefined variable with name param. For example,

<h:outputText value="#{param['id']}" />
Note: You have to call the jsf page directly and using the servlet mapping.

도움이 되었나요? Add Comment View Comments
 

Ques 12. How to add context path to URL for outputLink?

Current JSF implementation does not add the context path for outputLink if the defined path starts with '/'. To correct this problem use #{facesContext.externalContext.requestContextPath} prefix at the beginning of the outputLink value attribute. For For Example:

<h:outputLink value=#{facesContext.externalContext.requestContextPath}/myPage.faces> 



도움이 되었나요? Add Comment View Comments
 

Ques 13. How to get current page URL from backing bean?

You can get a reference to the HTTP request object via FacesContext like this:

FacesContext fc = FacesContext.getCurrentInstance();
HttpServletRequest request = (HttpServletRequest) fc.getExternalContext().getRequest();

and then use the normal request methods to obtain path information. Alternatively,

context.getViewRoot().getViewId();
will return you the name of the current JSP (JSF view IDs are basically just JSP path names).

도움이 되었나요? Add Comment View Comments
 

Ques 14. How to access web.xml init parameters from java code?

You can get it using externalContext getInitParameter method. For example, if you have:

<context-param>
<param-name>connectionString</param-name>
<param-value>jdbc:oracle:thin:scott/tiger@cartman:1521:O901DB</param-value>
</context-param>
You can access this connection string with:

FacesContext fc = FacesContext.getCurrentInstance();
String connection = fc.getExternalContext().getInitParameter("connectionString");

도움이 되었나요? Add Comment View Comments
 

Ques 15. How to access web.xml init parameters from jsp page?

You can get it using initParam pre-defined JSF EL valiable.

For example, if you have:

<context-param>
<param-name>productId</param-name>
<param-value>2004Q4</param-value>
</context-param>
You can access this parameter with #{initParam['productId']} . For example:

Product Id: <h:outputText value="#{initParam['productId']}"/>

도움이 되었나요? Add Comment View Comments
 

Most helpful rated by users:

Copyright © 2026, WithoutBook.