Idea是Java開發(fā)利器，SpringBoot是Java生態(tài)中最流行的微服務框架，docker是時下最火的容器技術，那么它們結合在一起會產(chǎn)生什么化學反應呢？

1. Docker的安裝可以參考https://docs.docker.com/install/

2. 配置docker遠程連接端口

vi /usr/lib/systemd/system/docker.service

找到 ExecStart，在最后面添加 -H tcp://0.0.0.0:2375，如下圖所示

3. 重啟docker

systemctl daemon-reload systemctl restart docker

4.開放端口

firewall-cmd --zone=public --add-port=2375/tcp --permanent

5.Idea安裝docker插件,重啟

6.連接遠程docker

(1) 編輯配置

(2) 填遠程docker地址

(3) 連接成功，會列出遠程docker容器和鏡像

創(chuàng)建springboot項目

項目結構圖

(1) 配置pom文件

<?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>com.fengqi</groupId> <artifactId>dockerDemo</artifactId> <version>1.0.0</version> <relativePath>../pom.xml</relativePath> <!-- lookup parent from repository --> </parent> <groupId>com.fengqi</groupId> <artifactId>web</artifactId> <version>1.0.0</version> <name>web</name> <description>Demo project for Spring Boot</description> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> </dependencies> <build> <plugins> <plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId> </plugin> <plugin><groupId>com.spotify</groupId><artifactId>docker-maven-plugin</artifactId><version>1.0.0</version><configuration> <dockerDirectory>src/main/docker</dockerDirectory> <resources> <resource> <targetPath>/</targetPath> <directory>${project.build.directory}</directory> <include>${project.build.finalName}.jar</include> </resource> </resources></configuration> </plugin> <plugin><artifactId>maven-antrun-plugin</artifactId><executions> <execution> <phase>package</phase> <configuration> <tasks><copy todir='src/main/docker' file='target/${project.artifactId}-${project.version}.${project.packaging}'></copy> </tasks> </configuration> <goals> <goal>run</goal> </goals> </execution></executions> </plugin> </plugins> </build>

(2) 在src/main目錄下創(chuàng)建docker目錄，并創(chuàng)建Dockerfile文件

FROM openjdk:8-jdk-alpineADD *.jar app.jarENTRYPOINT ['java','-Djava.security.egd=file:/dev/./urandom','-jar','/app.jar']

(3) 在resource目錄下創(chuàng)建application.properties文件

logging.config=classpath:logback.xmllogging.path=/home/developer/app/logs/server.port=8990

(4) 創(chuàng)建DockerApplication文件

@SpringBootApplicationpublic class DockerApplication { public static void main(String[] args) { SpringApplication.run(DockerApplication.class, args); }}

(5) 創(chuàng)建DockerController文件

@RestControllerpublic class DockerController { static Log log = LogFactory.getLog(DockerController.class); @RequestMapping('/') public String index() { log.info('Hello Docker!'); return 'Hello Docker!'; }}

(6) 增加配置

命令解釋

Image tag : 指定鏡像名稱和tag，鏡像名稱為 docker-demo，tag為1.1

Bind ports : 綁定宿主機端口到容器內部端口。格式為[宿主機端口]:[容器內部端口]

Bind mounts : 將宿主機目錄掛到到容器內部目錄中。格式為[宿主機目錄]:[容器內部目錄]

這個springboot項目會將日志打印在容器 /home/developer/app/logs/ 目錄下，將宿主機目錄掛載到容器內部目錄后，那么日志就會持久化容器外部的宿主機目錄中。

(7) Maven打包

(8) 運行

這里我們可以看到鏡像名稱為docker-demo:1.1，docker容器為docker-server

(9) 運行成功

(10) 瀏覽器訪問

(11) 日志查看

自此通過idea 部署springboot項目到docker成功！難以想象，部署一個Javaweb項目竟然如此簡單方便！

最后分享給大家相關學習教程👇：

https://www.bilibili.com/video/BV14t411z77T

IDEA教程

https://www.bilibili.com/video/BV1PZ4y1j7QK

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