made some local files

DemoApplication.java

@@ -0,0 +1,18 @@
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@SpringBootApplication
+@RestController
+public class DemoApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(DemoApplication.class, args);
+    }
+
+    @GetMapping("/user")
+    public User getUser() {
+        return new User("Kevan", 21);
+    }
+}

Dockerfile

@@ -1,41 +1,21 @@
-# Stage 1: Generate and build Spring Boot app
+# Stage 1: Build Spring Boot app
 FROM maven:3.9.6-eclipse-temurin-17 AS build
 WORKDIR /app
 
-# Create a minimal pom.xml
-RUN printf '<project xmlns="http://maven.apache.org/POM/4.0.0" \
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" \
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 \
-  http://maven.apache.org/xsd/maven-4.0.0.xsd"> \
-  <modelVersion>4.0.0</modelVersion> \
-  <groupId>com.example</groupId> \
-  <artifactId>springboot-hf</artifactId> \
-  <version>0.0.1-SNAPSHOT</version> \
-  <parent><groupId>org.springframework.boot</groupId> \
-  <artifactId>spring-boot-starter-parent</artifactId> \
-  <version>3.2.5</version></parent> \
-  <dependencies><dependency> \
-  <groupId>org.springframework.boot</groupId> \
-  <artifactId>spring-boot-starter-web</artifactId> \
-  </dependency></dependencies> \
-  <build><plugins><plugin> \
-  <groupId>org.springframework.boot</groupId> \
-  <artifactId>spring-boot-maven-plugin</artifactId> \
-  </plugin></plugins></build></project>' > pom.xml
+# Copy pom.xml and Java files
+COPY pom.xml .
+COPY *.java ./
 
-# Create minimal Hello World application
-RUN mkdir -p src/main/java/com/example/demo && \
-  printf 'package com.example.demo;\n\nimport org.springframework.boot.SpringApplication;\nimport org.springframework.boot.autoconfigure.SpringBootApplication;\nimport org.springframework.web.bind.annotation.GetMapping;\nimport org.springframework.web.bind.annotation.RestController;\n\n@SpringBootApplication\n@RestController\npublic class DemoApplication {\n  public static void main(String[] args) {SpringApplication.run(DemoApplication.class, args);} \n\n  @GetMapping("/")\n  public String hello(){return "Hello from Spring Boot on Hugging Face Spaces 🚀";}\n}' > src/main/java/com/example/demo/DemoApplication.java
-
-# Build the jar
+# Build the JAR
 RUN mvn clean package -DskipTests
 
-# Stage 2: Run the app
+# Stage 2: Run Spring Boot
 FROM openjdk:17-jdk-slim
 WORKDIR /app
+
+# Copy the JAR from build stage
 COPY --from=build /app/target/*.jar app.jar
 
-# Hugging Face requires port 7860
 EXPOSE 7860
 
 ENTRYPOINT ["java","-jar","app.jar","--server.port=7860"]

User.java

@@ -0,0 +1,15 @@
+public class User {
+    private String name;
+    private int age;
+
+    public User(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public String getName() { return name; }
+    public int getAge() { return age; }
+
+    public void setName(String name) { this.name = name; }
+    public void setAge(int age) { this.age = age; }
+}

pom.xml

@@ -0,0 +1,34 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
+                             http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.example</groupId>
+    <artifactId>springboot-hf</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>3.2.5</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

target/maven-archiver/pom.properties

@@ -0,0 +1,3 @@
+artifactId=springboot-hf
+groupId=com.example
+version=0.0.1-SNAPSHOT