I need to include page in other page on my project Spring J2ee,
the page whitch must be included has beans to be displayed...
anyone has idea please?
using include directive
<%#include file="/WEB-INF/jsp/myDir/myPage.jsp" %>
Related
I am developing a full Spring application with Spring MVC and Thymeleaf in view layer. In the past I've worked with JSPs and Spring MVC in view layer, but those are now dinosaurs I guess.
So my problem is that with JSPs I could very easily display model attributes in view by adding value in model.addAttribute in controller and displaying the same in JSP anywhere with placeholder evaluating to springex ${value}. So if I want to place a title in page I can write <title>${appName}<title>. This is one of the places where I can put any springex.
I am having hard time to figure out how to do this with Thymeleaf as it uses attribute based parsers. So anywhere on page if thymeleaf prefix is not included it won't process spring expression. It's very hard to work with limited set of tag libraries. I've heard of custom attributes for thymeleaf but I guess there should be a better way to do this.
You can use the th:text attribute, e.g.
<html ... xmlns:th="http://www.thymeleaf.org">
...
<title th:text="${appName}">mocking text</title>
...
</html>
The content of the tag ("mocking text" in this case) gets replaced by the result of the expression in the th:text attribute.
Of course you need to have the appropriate JAR files on CLASSPATH and have the Thymeleaf view resolver properly configured, as described in the Thymeleaf+Spring guide.
For additional information about how template processing works with Thymeleaf in general you can refer to the Thymeleaf guide.
In reference to my older unanswered question, I have a further error / problem that is partially related to it.
generic linking, variables and paths in jsp
When I include my header.jsp like this:
<%#include file="/WEB-INF/view/jsp/common/header.jsp" %>
It works fine.
But does not if I do it like this:
<%#include file="${pageContext.request.contextPath}/view/jsp/common/header.jsp" %>
Error:
HTTP Status 500 - /WEB-INF/view/jsp/common/login/login.jsp (line: 8, column: 1) File "${pageContext.request.contextPath}/view/jsp/common/header.jsp" not found
The above with ${} is a proper way and thats what I had been doing in the past until I started using spring and spring security.
But I dont think its a problem of spring or spring security.
I really cant understand why WEB-INF has a weightage and
How can I make my links generic (ref my old stated question)
Actually, it's not the proper way in this case. The context path is not used for creating paths within the internals of your app, as in this case. Instead, it is used to generate URLs within the view layer, such as links, form URLs, and etc.
In this case, the following is correct:
<%#include file="/WEB-INF/view/jsp/common/header.jsp" %>
The include line above is referring to a resource that is packaged inside your war file. How would the context path, which is configured at the servlet container, have anything to do with the location of something packaged inside your war?
To recap, you only need to use ${pageContext.request.contextPath} to prefix URLs that are going to be placed in output to the client.
I am new to spring mvc , I am creating a user registration page , there I need to put external css and import external js .
I put the script tag with src and link tag with href. But i think in Spring MVC application they will not work straight forward.
For this I added resourceservlet mapping but still it is not working
I am not able to find any way how I csn include these assets in my jsp file.
Please help me to get this one.
Regards,
Pranav
Put the CSS, JS, image files, etc., into a directory (which may contain subdirectories) in your web site, and than map the requests to that directory:
<mvc:resources mapping="/resources/**" location="/public-resources/"/>
In this example the files are in the public-resources directory, and you refer to them using /resources in the link in your JSP.
For more information see Spring docs
I am working for first time with Struts 2 + Spring + Hibernate architecture. I took this project as reference for building it and it works. I can list DB tables in my index.jsp using struts tags, but this does not work from nested JSP loaded into DIV containers inside index.jsp.
index.jsp has a <div class="art-nav"></div> and loads there another jsp using js:
$(".art-nav").load("./menu.jsp");
The same struts tags that work in index.jsp to list DB tables do not work in menu.jsp. I am not sure if the problem is the way I am loading this JSP or if it is necessary to execute some action from Struts 2 before loading menu.jsp...
Basically the JSPs use AJAX and I am adapting them to this architecture and there is where I am facing the problems because of my lack of experience.
Thank you in advance for your help!
You should include the second jsp as follows:
<div class="art-nav">
<%# include file="/WEB-INF/jsp/menu.jsp"%>
</div>
If you load your jsp via javascript the response will not get forwarded to that jsp.
If you really want to load a jsp via javascript you should create a new action (menu.action) that returns a parsed jsp and include it in the existing html. (Though I personally do not really like that technique.)
I'm developing a JSP/Servlet web app (no frameworks). I want to use MVC pattern. I am going to design my project like this:
Controller: a servlet that reads a request, extracts the values,communicates with model objects and gives information to a JSP page.
View: JSP Pages.
Model: Java Classes / Java Beans .. etc.
The problem: Index.jsp is the starting point (default page) in my web site. So, the Index.jsp becomes the controller to parse the request. For example, the following request:
index.jsp?section=article&id=10
is parsed in index.jsp as following :
<div class="midcol">
<!-- Which section? -->
<%String fileName = request.getParameter("section");
if (fileName == null) {
fileName = "WEB-INF/jspf/frontpage.jsp";
} else {
fileName = "WEB-INF/jspf/" + fileName + ".jsp";
}
%>
<jsp:include page='<%= fileName%>' />
</div>
Here, I can't force the servlet to be a controller, because the index.jsp is the controller here since it's the starting point.
Is there any solution to forward the request from index.jsp to the servlet and then go back to index.jsp? Or any solution that achieves the MVC goal - the servlet should be the controller?
I'm thinking of making a FrontPageController servlet as default page instead of index.jsp, but I don't know if it's a perfect idea?
Get rid of index.jsp and just let the controller servlet listen on a specific url-pattern of interest. The controller itself should forward the request to the JSP page of interest using RequestDispatcher.
request.getRequestDispatcher("/WEB-INF/page.jsp").forward(request, response);
Alternatively you can let index.jsp forward or redirect to an URL which is covered by the controller servlet which in turn shows the "default" page (which seems to be frontpage.jsp).
That said, in a correct MVC approach, you should have no scriptlets in JSP files. Whenever you need to write some raw Java code inside a JSP file which can't be replaced reasonably by taglibs (JSTL and so on) or EL, then the particular Java code belongs in any way in a real Java class, like a Servlet, Filter, Javabean, etcetera.
With regard to the homegrown MVC approach, you may find this answer and this article useful as well.