pom.xml

+<?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>2.4.2</version>
+        <relativePath/>
+    </parent>
+    <groupId>com.gitcode</groupId>
+    <artifactId>opensource</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>1024opensource</name>
+    <description>1024opensource</description>
+    <properties>
+        <java.version>1.8</java.version>
+    </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-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

preview.yml

+# preview.yml
+autoOpen: true # 打开工作空间时是否自动开启所有应用的预览
+apps:
+  - port: 8080 # 应用的端口
+    run: java -jar ./target/opensource-0.0.1-SNAPSHOT.jar # 应用的启动命令
+    command: # 使用此命令启动服务，且不执行run
+    root: ./ # 应用的启动目录
+    name: hello-1024 # 应用名称
+    description: hello-1024 # 应用描述
+    autoOpen: true # 打开工作空间时是否自动开启预览（优先级高于根级 autoOpen)

src/main/java/com/gitcode/opensource/Application.java

+package com.gitcode.opensource;
+
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * spring启动
+ */
+@SpringBootApplication
+public class Application {
+
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class);
+    }
+
+}
\ No newline at end of file

src/main/java/com/gitcode/opensource/controller/HelloWorld.java

+package com.gitcode.opensource.controller;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping
+public class HelloWorld {
+
+    /**
+     * hello
+     * @return
+     */
+    @GetMapping
+    public String helloWorld(){
+        return "hello 1024!!!";
+    }
+}

src/main/resources/application.properties

+server.port=8080
\ No newline at end of file