initial commit

backend-demo/Dockerfile

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+FROM openjdk:23-slim-bullseye
+
+WORKDIR /opt/app 
+ARG JAR_FILE=target/spring-boot-web.jar 
+
+COPY ${JAR_FILE} app.jar
+
+ENTRYPOINT [ "java","-jar","app.jar" ]
+EXPOSE 8080

backend-demo/build_run_docker.md

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+构建docker镜像
+```shell
+docker build -t nudt-demo:1.0 .
+```
+
+运行docker镜像
+```shell
+docker run -d -p 8080:8080 -e demo.server.name=test1 nudt-demo:1.0
+```
+注意哦，其中`demo.server.name`是容器的名称，可自定义，例如，要启动两个容器实例，可执行:
+```shell
+docker run -d --network nudt --network-alias server1 -p 8080:8080 -e demo.server.name=server1 nudt-demo:1.0
+docker run -d --network nudt --network-alias server2 -p 8081:8080 -e demo.server.name=server2 nudt-demo:1.0
+```
+其中，`--network nudt`表示将当前容器加入名为nudt的网络，如果该网络不存在，需要提前使用`docker network create nudt`命令创建网络；`--network-alias <alias-name>`表示将当前容器的网络主机名设置为`alias-name`

backend-demo/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>3.2.5</version>
+		<relativePath/>
+	</parent> 
+	
+	<groupId>edu.nudt</groupId>
+	<artifactId>demo</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>demo</name>
+	<description>Demo project for Spring Boot</description>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<java.version>17</java.version>
+		<maven.compiler.source>17</maven.compiler.source>
+		<maven.compiler.target>17</maven.compiler.target>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</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-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+            <optional>true</optional>
+        </dependency>
+	</dependencies>
+
+	<build>
+        <finalName>spring-boot-web</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.0</version>
+                <configuration>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

backend-demo/src/main/java/edu/nudt/demo/DemoApplication.java

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+package edu.nudt.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.beans.factory.annotation.Value;
+
+@SpringBootApplication
+@Controller
+public class DemoApplication {
+	@Value("${demo.server.name}")
+	private String serverName;
+
+	@GetMapping("/")
+	public String index(final Model model) {
+		model.addAttribute("title", "Backend Server: " + serverName);
+		model.addAttribute("msg", "欢迎来到分布式计算的世界!");
+		return "index";
+	}
+
+	public static void main(String[] args) {
+		SpringApplication.run(DemoApplication.class, args);
+	}
+
+}

backend-demo/src/main/resources/application.properties

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+spring.application.name=demo
+
+demo.server.name="001"

backend-demo/src/main/resources/templates/index.html

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+
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css"/>
+    <link data-th-href="@{/css/main.css?{id}(id=${timestamp})}" rel="stylesheet">
+    <title>Hello Docker + Spring Boot</title>
+</head>
+<body>
+
+<!-- <nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top">
+    <a class="navbar-brand" href="#">Mkyong.com</div></a>
+</nav> -->
+
+<main role="main" class="container">
+    <div class="starter-template">
+        <h1 th:text="${title}">Default title.</h1>
+        <p th:text="${msg}">Default text.</p>
+    </div>
+</main>
+
+<script data-th-src="@{/js/main.js}"></script>
+</body>
+
+</html>

backend-demo/src/test/java/edu/nudt/demo/DemoApplicationTests.java

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+package edu.nudt.demo;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DemoApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}