1.新建一个springboot项目

1.pom配置文件


<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.3.5.RELEASE</version>
</parent>

<dependencies>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </dependency>

    <dependency>
        <groupId>cn.hutool</groupId>
        <artifactId>hutool-all</artifactId>
        <version>5.5.7</version>
    </dependency>

</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

2.application.yml

server:
  port: 8887

3.主要代码

@RestController
@RequestMapping("/demo")
@Slf4j
public class HelloController {

    @GetMapping("/sayHi")
    public ResponseEntity<String> sayHi(@RequestParam(value = "name")String name){
        return ResponseEntity.ok("Hi:"+name);
    }

    @PostMapping("/hello")
    public HttpResult<String> hello(@RequestBody Map<String,Object> map){
        Object name = map.get("name");
        if(Objects.isNull(name)){
            return HttpResult.failed("name不存在");
        }
        log.info("get json param: name: {}", name);
        return HttpResult.succeed("www");
    }
}

2.生成jar包，并上传到服务器上

3.编写Dockerfile

FROM java:8
WORKDIR /opt/deployments
MAINTAINER author <www.zy@qq.com>
COPY  springbootDemo.jar /opt/deployments/app.jar
EXPOSE 8887
CMD ["java","-jar","/opt/deployments/app.jar"]