1、建立一個SpringBooot專案並且打成jar包

2、在Linux中建立一個資料夾，來做docker測試

[root@izwz90lvzs7171wgdhul8az ~]# mkdir /root/docker_test

3、將jar包上傳到Linux中

建立存放jar包的資料夾

[root@izwz90lvzs7171wgdhul8az docker_test]# mkdir /root/docker_test/jar

然後利用XShell上傳jar包到上面的資料夾中

4、編寫Dockerfile檔案

# 基於java映象建立新映象
FROM java:8
# 作者
MAINTAINER Howinfun
# 將jar包新增到容器中並更名為app.jar
ADD jar/app.jar /root/docker_test/app.jar
# 執行jar包
ENTRYPOINT ["nohup","java","-jar","/root/docker_test/app.jar","&"]

注意：ADD 、 COPY 指令用法一樣，唯一不同的是 ADD 支援將歸檔檔案（tar, gzip, bzip2, etc）做提取和解壓操作。還有需要注意的是，COPY 指令需要複製的目錄一定要放在 Dockerfile 檔案的同級目錄下。

5、製作映象

[root@izwz90lvzs7171wgdhul8az docker_test]# docker build -t sbdemo .

命令引數：

-t：指定新映象名
.：表示Dockfile在當前路徑

如果我們的 Dockerfile 檔案路徑不在這個目錄下，或者有另外的檔名，我們可以通過 -f 選項單獨給出 Dockerfile 檔案的路徑

[root@izwz90lvzs7171wgdhul8az docker_test]# docker build -t sbdemo -f /root/docker_test/Dockerfile /root/docker_test/

命令引數：

-f：第一個引數是Dockerfile的路徑 第二個引數是Dockerfile所在資料夾製作完成後通過docker images命令檢視我們製作的映象：

[root@izwz90lvzs7171wgdhul8az docker_test]# docker images | grep sbdemo
sbdemo       latest       7efac46ef997    4 hours ago     686MB

6、啟動容器

[root@izwz90lvzs7171wgdhul8az docker_test]# docker run -d -p 8888:8888 --name mysbdemo sbdemo:latest

命令引數：

-d：後臺執行
-p：公開指定埠號
--name：給容器命名

啟動後可通過docker ps檢視正在執行的容器：

[root@izwz90lvzs7171wgdhul8az docker_test]# docker ps
CONTAINER ID    IMAGE        COMMAND         CREATED       STATUS       PORTS          NAMES
5096c8c7b36f    sbdemo       "nohup java -jar /ro??  4 seconds ago    Up 2 seconds    0.0.0.0:8888->8888/tcp  mysbdemo

7、檢視容器啟動日誌

我們可以通過 docker logs 檢視指定容器的日誌：

[root@izwz90lvzs7171wgdhul8az docker_test]# docker logs mysbdemo

 .  ____     _      __ _ _
 /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/ ___)| |_)| | | | | || (_| | ) ) ) )
 ' |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::    (v2.1.6.RELEASE)

2019-10-11 02:10:46.264 INFO 1 --- [      main] com.hyf.DatabaseApplication       : Starting DatabaseApplication v0.0.1-SNAPSHOT on 6d85ac5d8751 with PID 1 (/root/docker_test/app.jar started by root in /)
2019-10-11 02:10:46.267 DEBUG 1 --- [      main] com.hyf.DatabaseApplication       : Running with Spring Boot v2.1.6.RELEASE, Spring v5.1.8.RELEASE
2019-10-11 02:10:46.268 INFO 1 --- [      main] com.hyf.DatabaseApplication       : No active profile set, falling back to default profiles: default
2019-10-11 02:10:49.139 WARN 1 --- [      main] o.m.s.mapper.ClassPathMapperScanner   : Skipping MapperFactoryBean with name 'bookMapper' and 'com.hyf.mapper.BookMapper' mapperInterface. Bean already defined with the same name!
2019-10-11 02:10:49.139 WARN 1 --- [      main] o.m.s.mapper.ClassPathMapperScanner   : No MyBatis mapper was found in '[com.hyf]' package. Please check your configuration.
2019-10-11 02:10:49.246 INFO 1 --- [      main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2019-10-11 02:10:49.257 INFO 1 --- [      main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2019-10-11 02:10:49.328 INFO 1 --- [      main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 39ms. Found 0 repository interfaces.
2019-10-11 02:10:50.345 INFO 1 --- [      main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$2c6b335] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-10-11 02:10:51.255 INFO 1 --- [      main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8888 (http)
2019-10-11 02:10:51.359 INFO 1 --- [      main] o.apache.catalina.core.StandardService  : Starting service [Tomcat]
2019-10-11 02:10:51.359 INFO 1 --- [      main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.21]
2019-10-11 02:10:51.778 INFO 1 --- [      main] o.a.c.c.C.[Tomcat].[localhost].[/]    : Initializing Spring embedded WebApplicationContext
2019-10-11 02:10:51.779 INFO 1 --- [      main] o.s.web.context.ContextLoader      : Root WebApplicationContext: initialization completed in 5104 ms
2019-10-11 02:10:54.164 INFO 1 --- [      main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2019-10-11 02:10:56.081 INFO 1 --- [      main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8888 (http) with context path ''
2019-10-11 02:10:56.090 INFO 1 --- [      main] com.hyf.DatabaseApplication       : Started DatabaseApplication in 11.49 seconds (JVM running for 12.624)

8、訪問介面

容器啟動後，我們嘗試使用postman或者其他http工具去訪問部署在容器中的應用介面。

總結

以上所述是小編給大家介紹的利用Dockerfile部署SpringBoot專案的方法,希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回覆大家的。在此也非常感謝大家對碼農教程網站的支援！
如果你覺得本文對你有幫助，歡迎轉載，煩請註明出處，謝謝！