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[jsp-map] map in jsp (#18751)
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4 files changed

+119
-3
lines changed

4 files changed

+119
-3
lines changed

‎spring-boot-modules/spring-boot-jsp/pom.xml

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<dependencies>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>jstl</artifactId>
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<groupId>jakarta.servlet.jsp.jstl</groupId>
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<artifactId>jakarta.servlet.jsp.jstl-api</artifactId>
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<version>${jstl.version}</version>
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</dependency>
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<dependency>
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<groupId>org.glassfish.web</groupId>
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<artifactId>jakarta.servlet.jsp.jstl</artifactId>
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<version>${jstl.version}</version>
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</dependency>
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<dependency>
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</build>
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<properties>
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<jstl.version>1.2</jstl.version>
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<jstl.version>2.0.0</jstl.version>
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<spring-boot.version>3.2.2</spring-boot.version>
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<commons-text.version>1.10.0</commons-text.version>
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</properties>

‎spring-boot-modules/spring-boot-jsp/src/main/java/com/baeldung/boot/jsp/controller/MapDemoController.java

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package com.baeldung.boot.jsp.controller;
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import java.util.Map;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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@Controller
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@RequestMapping("/map-demo")
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public class MapDemoController {
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private final static Map<String, String> movies = Map.of(
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// @formatter:off
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"M-01", "No Country for Old Men",
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"M-02", "The Silence of the Lambs",
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"M-03", "Back to the Future",
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"M-04", "Gone with the Wind",
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"M-05", "The Girl with the Dragon Tattoo"
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// @formatter:on
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);
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@GetMapping("/using-scriptlets")
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public String usingScriplets(Model model) {
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model.addAttribute("movieMap", movies);
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return "map-demo/using-scriptlets";
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}
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@GetMapping("/using-jstl")
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public String usingJstl(Model model) {
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model.addAttribute("movieMap", movies);
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return "map-demo/using-jstl";
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}
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}

‎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" %>
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
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<html>
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<head>
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<title>Demo - Using Map in JSP (JSTL)</title>
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<style>
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table, th, td {
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border: 1px solid black;
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border-collapse: collapse;
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padding: 3px;
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}
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</style>
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</head>
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<body>
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<div>Movies in the Map Object (Using JSTL)</div>
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<br/>
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<table>
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<tr>
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<th>Code</th>
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<th>Movie Title</th>
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</tr>
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<c:forEach items="${movieMap}" var="entry">
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<tr>
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<td>
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${entry.key}
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</td>
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<td>
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${entry.value}
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</td>
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</tr>
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</c:forEach>
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</table>
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</body>
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</html>

‎spring-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" %>
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
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<html>
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<head>
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<title>Demo - Using Map in JSP (Scriptlets)</title>
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<style>
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table, th, td {
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border: 1px solid black;
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border-collapse: collapse;
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padding: 3px;
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}
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</style>
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</head>
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<body>
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<div>Movies in the Map Object (Using JSP Scriptlets)</div>
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<br/>
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<% Map<String, String> movieMap = (Map<String, String>) request.getAttribute("movieMap");%>
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<table>
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<tr>
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<th>Code</th>
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<th>Movie Title</th>
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</tr>
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<%
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if (movieMap != null) {
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for (Map.Entry<String, String> entry : movieMap.entrySet()) {
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String key = entry.getKey();
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String value = entry.getValue();
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%>
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<tr>
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<td>
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<%= key %>
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</td>
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<td>
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<%= value %>
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</td>
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</tr>
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<% }
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}%>
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</table>
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</body>
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</html>

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