version 1.1.10 implement basic footprint

Author: FLLLIGHT

out/artifacts/SoftwareDeveloping_PJ_war_exploded/WEB-INF/classes/fudan/sd/project/controller/ImageServlet.class

@@ -1,4 +1,5 @@
-<%--
+<%@ page import="java.util.List" %>
+<%@ page import="java.util.ArrayList" %><%--
   Created by IntelliJ IDEA.
   User: xuanzitao
   Date: 2020/7/21
@@ -22,6 +23,25 @@
 <%@ include file="navbar.jsp"%>
 <div style="margin-top: 100px"></div>
 
+<section>
+    <div class="container">
+        <div class="row">
+            <div class="col-lg-8">
+                <h2>Footprint</h2>
+                <nav aria-label="breadcrumb">
+                    <ol class="breadcrumb">
+<c:forEach items="${sessionScope.footprint}" var="image">
+                        <li class="breadcrumb-item">
+                            <a href="/SoftwareDeveloping_PJ_war_exploded/image/queryImageDetail?imageId=${image.imageId}">${image.title}</a>
+                        </li>
+</c:forEach>
+                    </ol>
+                </nav>
+            </div>
+        </div>
+    </div>
+</section>
+
 
 <section>
     <div class="container" id="collectedImages">
@@ -30,8 +50,6 @@
     </div>
 </section>
 
-
-
 <%--<c:if test="${requestScope.owner!=null}">--%>
 <%--    ${requestScope.owner.userName}'s collection--%>
 <%--    <br/>--%>

out/artifacts/SoftwareDeveloping_PJ_war_exploded/WEB-INF/classes/fudan/sd/project/service/ImageService.class

@@ -16,12 +16,10 @@
 
 import javax.servlet.ServletContext;
 import javax.servlet.ServletException;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.HttpSession;
+import javax.servlet.http.*;
 import java.io.IOException;
 import java.lang.reflect.Method;
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -104,6 +102,8 @@ private void queryImageDetail(HttpServletRequest request, HttpServletResponse re
             request.setAttribute("isCollected", isCollected);
         }
 
+        imageService.setFootprint(session, image);
+
         request.getRequestDispatcher("/jsp/detail.jsp").forward(request, response);
     }
 

out/artifacts/SoftwareDeveloping_PJ_war_exploded/jsp/collection.jsp

@@ -6,6 +6,7 @@
 import fudan.sd.project.entity.Page;
 import org.apache.commons.fileupload.FileItem;
 
+import javax.servlet.http.HttpSession;
 import java.io.FileOutputStream;
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -178,4 +179,20 @@ public List<Image> getLimitedImages(List<Image> oldImages, Page page){
         }
         return newImages;
     }
+
+    public void setFootprint(HttpSession session, Image image){
+        List<Image> footprint = (List<Image>) session.getAttribute("footprint");
+        if(footprint==null){
+            footprint = new ArrayList<>();
+        }
+        footprint.removeIf(image1 -> image1.getImageId() == image.getImageId());
+        if(footprint.size()>10){
+            footprint.remove(footprint.get(0));
+        }
+        footprint.add(image);
+        for(Image image2 : footprint){
+            System.out.println(image2);
+        }
+        session.setAttribute("footprint", footprint);
+    }
 }

out/production/SoftwareDeveloping-PJ/fudan/sd/project/controller/ImageServlet.class

@@ -1,4 +1,5 @@
-<%--
+<%@ page import="java.util.List" %>
+<%@ page import="java.util.ArrayList" %><%--
   Created by IntelliJ IDEA.
   User: xuanzitao
   Date: 2020/7/21
@@ -22,6 +23,25 @@
 <%@ include file="navbar.jsp"%>
 <div style="margin-top: 100px"></div>
 
+<section>
+    <div class="container">
+        <div class="row">
+            <div class="col-lg-8">
+                <h2>Footprint</h2>
+                <nav aria-label="breadcrumb">
+                    <ol class="breadcrumb">
+<c:forEach items="${sessionScope.footprint}" var="image">
+                        <li class="breadcrumb-item">
+                            <a href="/SoftwareDeveloping_PJ_war_exploded/image/queryImageDetail?imageId=${image.imageId}">${image.title}</a>
+                        </li>
+</c:forEach>
+                    </ol>
+                </nav>
+            </div>
+        </div>
+    </div>
+</section>
+
 
 <section>
     <div class="container" id="collectedImages">
@@ -30,8 +50,6 @@
     </div>
 </section>
 
-
-
 <%--<c:if test="${requestScope.owner!=null}">--%>
 <%--    ${requestScope.owner.userName}'s collection--%>
 <%--    <br/>--%>