搭建SpringBoot项目
搭建一个简单的SpringBoot项目：
- 创建maven工程，pom为：
<?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 http://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>2.5.6</version> </parent> <groupId>org.study</groupId> <artifactId>test-docker</artifactId> <packaging>pom</packaging> <version>1.0-SNAPSHOT</version> <modules> <module>docker_boot</module> </modules> <properties> <maven.compiler.source>8</maven.compiler.source> <maven.compiler.target>8</maven.compiler.target> </properties> </project>
- 新建Module，pom为：
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <parent> <artifactId>test-docker</artifactId> <groupId>org.study</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>docker_boot</artifactId> <properties> <maven.compiler.source>8</maven.compiler.source> <maven.compiler.target>8</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-actuator</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>
- 编写一个配置文件
server: port: 6001
- 编写主启动类
package com.study; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; /** * @author tengyer 2022/05/06 16:34 */ @SpringBootApplication public class DockerBootApplication { public static void main(String[] args) { SpringApplication.run(DockerBootApplication.class, args); } }
- 编写一个Controller
package com.study.controller; import org.springframework.beans.factory.annotation.Value; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import java.util.UUID; /** * @author tengyer 2022/05/06 16:35 */ @RestController public class OrderController { @Value("${server.port}") private String port; @RequestMapping("/order/docker") public String helloDocker() { return "hello world \t" + port + "\t" + UUID.randomUUID().toString(); } @RequestMapping(value = "/order/index", method = RequestMethod.GET) public String index() { return "服务端口号：" + "\t" + port + "\t" + UUID.randomUUID().toString(); } }
在Idea中运行没有问题时，将其使用maven的package打成jar包。
发布微服务项目到Docker容器
- 将项目jar包上传到服务器
- 编写Dockerfile
FROM openjdk:8-oracle MAINTAINER Snow [wb137725@163.com] # 在主机 /var/lib/docker目录下创建一个临时文件，并链接到容器的 /tmp VOLUME /tmp # 将jar包添加到容器中，并命名为 springboot_docker.jar ADD docker_boot-1.0-SNAPSHOT.jar springboot_docker.jar # 运行jar包 RUN bash -c 'touch /springboot_docker.jar' ENTRYPOINT ["java", "-jar", "/springboot_docker.jar"] # SpringBoot项目配置的端口号为9999，需要将9999暴露出去 EXPOSE 9999
- 构建镜像
docker build -t springboot_docker:1.0 .
- 启动容器：
docker run -d -p 9999:9999 --name springboot springboot_docker:1.0
