如何在从Servlet转发时将JSP片段包含到JSP页面中？
[英]How to Include a JSP Fragment into a JSP Page while forwading from Servlet?
问题描述
First, Please suggest me if my question heading is not correct. 
首先，如果我的问题标题不正确，请建议我。
Moving on to question: Say I am having below components: 继续提问：说我有以下组件：
search.jsp - A JSP Page with a Form to Submit Data search.jsp - 具有提交数据的表单的JSP页面
Search.java - A controller Servlet having both get() and post() defined separately so that it can acts as a dispatcher for path /search.jsp Search.java - 一个控制器Servlet，它同时定义了get()和post()以便它可以充当路径/search.jsp的调度/search.jsp
searchResults.jspf - A Fragment with some JSTL code to show up the Search Results searchResults.jspf - 带有一些JSTL代码的片段，用于显示搜索结果
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 . 我想要的是每个POST请求，控制器servlet必须进行计算，将结果设置为请求属性，然后 - 将请求转发给视图search.jsp ，该视图应包含自己代码后的片段 。
So that, I can have a View Defined in such a way as: 所以，我可以通过以下方式定义视图：
search.jsp
+
searchResults.jspf
on a single page. 在一个页面上。
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. 问题是，我可以使用调度程序执行转发或包含，因为我不知道如何在将JSP转发到其中时包含片段。
Let me know if I need to post some code if necessary, or need any corrections. 如果我需要在必要时发布一些代码，或者需要进行任何更正，请告诉我。
2 个解决方案
解决方案1
2 已采纳 2015-11-04 15:53:35
In your search.jsp embed your searchResult.jsp using jsp:include: 在你的search.jsp中使用jsp：include来嵌入你的searchResult.jsp：
<jsp:include page="searchResult.jsp"></jsp:include>
Exemple: 1. The servlet: 例子：1。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:
search.jsp的： <%@ 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
searchResult.jsp <%@ page contentType="text/html;charset=UTF-8" language="java" %> <body> in searchResult </body> </html>
解决方案2
1 2015-11-04 15:58:38
You can include your jspf in your jsp like below: 你可以在你的jsp中包含你的jspf，如下所示：
<%@include file="searchResult.jspf" %>
you can set a statement to execute a certain section only if a particular test evaluates to true . 只有在特定测试的计算结果为true时，才能设置语句来执行某个部分。
Ex: 例如：
if(.....==true){
<%@include file="searchResult.jspf" %>
}else{
<%@include file="someOther.jspf" %>
}
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