Pom cambiado...

pom.xml

@@ -15,25 +15,74 @@
     <description>Foro</description>
     <properties>
         <java.version>17</java.version>
+        <spring-cloud.version>2021.0.5</spring-cloud.version>
     </properties>
     <dependencies>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter</artifactId>
-        </dependency>
-        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-data-jpa</artifactId>
-        </dependency>
+    <dependency>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-thymeleaf</artifactId>
+    </dependency>
+    <dependency>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-web</artifactId>
+        <version>3.0.0</version>
+    </dependency>
+    <dependency>
+        <groupId>org.springframework.cloud</groupId>
+        <artifactId>spring-cloud-starter</artifactId>
+        <version>3.1.5</version>
+
+    </dependency>
+    <!-- https://mvnrepository.com/artifact/org.webjars/bootstrap -->
+    <dependency>
+        <groupId>org.webjars</groupId>
+        <artifactId>bootstrap</artifactId>
+        <version>5.2.2</version>
+    </dependency>
+    <!-- https://mvnrepository.com/artifact/org.webjars.bower/jquery -->
+    <dependency>
+        <groupId>org.webjars.bower</groupId>
+        <artifactId>jquery</artifactId>
+        <version>3.6.1</version>
+    </dependency>
+    <!-- https://mvnrepository.com/artifact/org.webjars/webjars-locator -->
+    <dependency>
+        <groupId>org.webjars</groupId>
+        <artifactId>webjars-locator</artifactId>
+        <version>0.46</version>
+    </dependency>
 
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
-        </dependency>
+    <!-- https://mvnrepository.com/artifact/org.webjars/font-awesome -->
+    <dependency>
+        <groupId>org.webjars</groupId>
+        <artifactId>font-awesome</artifactId>
+        <version>6.2.0</version>
+    </dependency>
 
-    </dependencies>
+
+    <dependency>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-devtools</artifactId>
+        <scope>runtime</scope>
+        <optional>true</optional>
+    </dependency>
+    <dependency>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-test</artifactId>
+        <scope>test</scope>
+    </dependency>
+</dependencies>
+<dependencyManagement>
+<dependencies>
+    <dependency>
+        <groupId>org.springframework.cloud</groupId>
+        <artifactId>spring-cloud-dependencies</artifactId>
+        <version>${spring-cloud.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+    </dependency>
+</dependencies>
+</dependencyManagement>
 
     <build>
         <plugins>

src/main/java/com/cristobalbernal/foro/controlador/controlador.java

@@ -0,0 +1,23 @@
+package com.cristobalbernal.foro.controlador;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+@Controller
+public class controlador {
+    @GetMapping({"/","","home","/inicio","/index"})
+    public String welcome(Model model) throws MalformedURLException {
+        final String currentURL = ServletUriComponentsBuilder.fromCurrentContextPath().build().toUriString();
+        URL requestURL = new URL(currentURL);
+        model.addAttribute("mensaje","Ramoncin");
+        String dominio = requestURL.getHost();
+        int x = dominio.indexOf(".");
+        String conDominio = dominio.substring(0,x);
+        model.addAttribute("dominio",conDominio);
+        return "index";
+    }
+}

src/main/resources/templates/index.html

@@ -3,6 +3,48 @@
 <head>
     <meta charset="UTF-8">
     <title>Foro</title>
+    <style type="text/css">
+        *{
+            padding: 0px;
+            margin: 0px;
+        }
+        #header{
+            margin: auto;
+            width: 500px;
+            font-family: Arial,Helvetica,sans-serif;
+        }
+        ul,ol{
+            list-style: none;
+        }
+        .nav li a{
+            background-color: #000;
+            color: #fff;
+            text-decoration: none;
+            padding: 10px 15px;
+            display: block;
+        }
+        .nav li a:hover{
+            background-color: rgba(67, 67, 67);
+        }
+        .nav > li{
+            float: left;
+        }
+        .nav li ul{
+            display:none;
+            position: absolute;
+            min-width: 140px;
+        }
+        .nav li:hover > ul{
+            display: block;
+        }
+        .nav li ul li{
+            position: relative;
+        }
+        .nav li ul li ul{
+            right: -140px;
+            top:0px
+        }
+    </style>
 </head>
 <body>
 
@@ -16,7 +58,14 @@
                     <li><a href="">Submenu 1</a></li>
                     <li><a href="">Submenu 2</a></li>
                     <li><a href="">Submenu 3</a></li>
-                    <li><a href="">Submenu 4</a></li>
+                    <li><a href="">Submenu 4</a>
+                        <ul>
+                            <li><a href="">Submenu 1</a></li>
+                            <li><a href="">Submenu 2</a></li>
+                            <li><a href="">Submenu 3</a></li>
+                            <li><a href="">Submenu 4</a></li>
+                        </ul>
+                    </li>
                 </ul>
             </li>