How to Include a JSP Fragment into a JSP Page while forwading from Servlet?

Question

First, Please suggest me if my question heading is not correct.

Moving on to question: Say I am having below components:

search.jsp - A JSP Page with a Form to Submit Data

Search.java - A controller Servlet having both get() and post() defined separately so that it can acts as a dispatcher for path /search.jsp

searchResults.jspf - A Fragment with some JSTL code to show up the Search Results

What I want here is for every POST request the controller servlet has to do its calculation, set results as Request Attributes and than - forward the request to the view search.jsp that should include the Fragment after its own codes.

So that, I can have a View Defined in such a way as:

search.jsp
+
searchResults.jspf

on a single page.

Problem is, I can either do Forward or Include with the dispatcher as I don't know how can i Include a fragment while forwarding to a JSP into it.

Let me know if I need to post some code if necessary, or need any corrections.

score 4 · Accepted Answer · edited May 14 '19 at 07:29

4

In your search.jsp embed your searchResult.jsp using jsp:include:

<jsp:include page="searchResult.jsp"></jsp:include>

Exemple: 1. The servlet:

@WebServlet(name = "Servlet", urlPatterns = "/myForwardTest")
public class Servlet extends HttpServlet {

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.getRequestDispatcher("search.jsp").forward(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          doPost(request, response);
    }
 }

search.jsp:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
   <title>In search resust</title>
</head>
<body>
 Search.jsp embed searchResult.jsp
<jsp:include page="searchResult.jsp" />
</body>
</html>

searchResult.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<body>
  in searchResult
</body>
</html>

edited May 14 '19 at 07:29

Community

1
1

answered Nov 04 '15 at 15:53

fabien t

358
1
9

How can I make sure it gets included *only* when coming from Servlet's POST method?? – Asif Nov 04 '15 at 16:20
have you tried it? When you forward the request from controler, at this time i don't think there's a difference between post and get ... how do you forward your request ? – fabien t Nov 05 '15 at 17:25
I tried it, no problem at all.if you want i have am exemple? – fabien t Nov 05 '15 at 17:52
Thank You, I got a way around, I used JSTL `c:if` that looks for a `requestAttribute` say `showResult` , if comes `true` it will `include` the `searchResults.jspf` else nothing will happen, when forwading Request through GET, I am setting it as `false` in servlet's `doGet()` method, whereas I am setting it as `true` in `doPost()`!! I think its a right way. . Cheers :) – Asif Nov 09 '15 at 18:22

Madushan Perera · Answer 2 · 2015-11-04T16:04:53.640

1

You can include your jspf in your jsp like below:

<%@include file="searchResult.jspf" %>

you can set a statement to execute a certain section only if a particular test evaluates to true .

Ex:

if(.....==true){
<%@include file="searchResult.jspf" %>
}else{
<%@include file="someOther.jspf" %>
}

edited Nov 04 '15 at 16:04

answered Nov 04 '15 at 15:58

Madushan Perera

2,568
2
17
36

I would like to use JSTL or EL tags rather than JSP code, if you could help me pls. . . – Asif Nov 04 '15 at 16:21
You can learn JSTL and EL more through these links given below. They have given examples for using each and every tag in JSTL. **JSTL-->** http://www.tutorialspoint.com/jsp/jsp_standard_tag_library.htm **EL-->** http://www.tutorialspoint.com/jsp/jsp_expression_language.htm – Madushan Perera Nov 06 '15 at 05:30

How to Include a JSP Fragment into a JSP Page while forwading from Servlet?

2 Answers2