spring-boot+graalvm实践
1、环境配置（Windows 10）
  • 安装VS编译环境

下载visual studio2019安装包完成安装 https://visualstudio.microsoft.com/zh-hans/vs/older-downloads/

下载安装版本Visual Studio Professional 2019 (version 16.11)以及msvc如下

graalvm

配置如下环境变量

PATH=C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.16.27023\bin\HostX64\x64
INCLUDE=C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.16.27023\crt;C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.16.27023\include

如在编辑过程中出现以下错误，则需要将语言改为英文尝试

Native-image building on Windows currently only supports target architecture: AMD64

graalvm

  • 安装graalvm jdk

在oracle官网https://www.oracle.com/downloads/graalvm-downloads.html?selected_tab=1下载graalvm软件包graalvm-ee-java17-windows-amd64-22.3.1.zip

解压并配置环境变量

GRAALVM_HOME=C:\jdk\graalvm-ee-java17-22.3.1
JAVA_HOME=C:\jdk\graalvm-ee-java17-22.3.1
PATH=%GRAALVM_HOME%\bin;

graalvm

gu list 查看当前镜像，在首次编译时会下载native镜像

2、编写一个简单的spring-boot项目，使用graalvm构建成本地应用

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
...
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>3.0.3</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.example</groupId>
	<artifactId>demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>demo</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>17</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-aop</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>
	<build>
		<plugins>
			<plugin>
				<groupId>org.graalvm.buildtools</groupId>
				<artifactId>native-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

DemoApplication.java

@SpringBootApplication
@RestController
public class DemoApplication {

	public static void main(String[] args) {
		SpringApplication.run(DemoApplication.class, args);
	}
	
	@GetMapping("/demo")
    public String demo(){
        System.out.println("current time is "+System.currentTimeMillis());
        return "demo-"+System.currentTimeMillis();
    }

}

打开命令行x64 Native Tools Command Prompt for VS 2019构建命令，需要特别注意不是普通的命令行cmd

mvn clean package -DskipTests  -Pnative native:compile

graalvm

编译成功后在target目录中将会有一个demo.exe，直接运行可秒启动应用。

graalvm

centos环境中需要安装以下依赖
sudo dnf install gcc gcc-c++ -y
sudo dnf install zlib-devel
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