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Merged
merged 1 commit into from
Aug 18, 2025
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[jsp-map] map in jsp #18751

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11 changes: 8 additions & 3 deletions spring-boot-modules/spring-boot-jsp/pom.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -35,8 +35,13 @@

<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<groupId>jakarta.servlet.jsp.jstl</groupId>
<artifactId>jakarta.servlet.jsp.jstl-api</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.web</groupId>
<artifactId>jakarta.servlet.jsp.jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
Expand Down Expand Up @@ -101,7 +106,7 @@
</build>

<properties>
<jstl.version>1.2</jstl.version>
<jstl.version>2.0.0</jstl.version>
<spring-boot.version>3.2.2</spring-boot.version>
<commons-text.version>1.10.0</commons-text.version>
</properties>
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36 changes: 36 additions & 0 deletions ...les/spring-boot-jsp/src/main/java/com/baeldung/boot/jsp/controller/MapDemoController.java
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@@ -0,0 +1,36 @@
package com.baeldung.boot.jsp.controller;

import java.util.Map;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/map-demo")
public class MapDemoController {

private final static Map<String, String> movies = Map.of(
// @formatter:off
"M-01", "No Country for Old Men",
"M-02", "The Silence of the Lambs",
"M-03", "Back to the Future",
"M-04", "Gone with the Wind",
"M-05", "The Girl with the Dragon Tattoo"
// @formatter:on
);

@GetMapping("/using-scriptlets")
public String usingScriplets(Model model) {
model.addAttribute("movieMap", movies);
return "map-demo/using-scriptlets";
}

@GetMapping("/using-jstl")
public String usingJstl(Model model) {
model.addAttribute("movieMap", movies);
return "map-demo/using-jstl";

}
}
34 changes: 34 additions & 0 deletions spring-boot-modules/spring-boot-jsp/src/main/webapp/WEB-INF/jsp/map-demo/using-jstl.jsp
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<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Demo - Using Map in JSP (JSTL)</title>
<style>
table, th, td {
border: 1px solid black;
border-collapse: collapse;
padding: 3px;
}
</style>
</head>
<body>
<div>Movies in the Map Object (Using JSTL)</div>
<br/>
<table>
<tr>
<th>Code</th>
<th>Movie Title</th>
</tr>
<c:forEach items="${movieMap}" var="entry">
<tr>
<td>
${entry.key}
</td>
<td>
${entry.value}
</td>
</tr>
</c:forEach>
</table>
</body>
</html>
41 changes: 41 additions & 0 deletions ...ng-boot-modules/spring-boot-jsp/src/main/webapp/WEB-INF/jsp/map-demo/using-scriptlets.jsp
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<%@ page import="java.util.Map" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Demo - Using Map in JSP (Scriptlets)</title>
<style>
table, th, td {
border: 1px solid black;
border-collapse: collapse;
padding: 3px;
}
</style>
</head>
<body>
<div>Movies in the Map Object (Using JSP Scriptlets)</div>
<br/>
<% Map<String, String> movieMap = (Map<String, String>) request.getAttribute("movieMap");%>
<table>
<tr>
<th>Code</th>
<th>Movie Title</th>
</tr>
<%
if (movieMap != null) {
for (Map.Entry<String, String> entry : movieMap.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
%>
<tr>
<td>
<%= key %>
</td>
<td>
<%= value %>
</td>
</tr>
<% }
}%>
</table>
</body>
</html>