| Idea是Java开发利器，SpringBoot是Java生态中最流行的微服务框架，docker是时下最火的容器技术，那么它们结合在一起会产生什么化学反应呢？
一、开发前准备1. Docker的安装可以参考https://docs.docker.com/install/ 2. 配置docker远程连接端口 vi /usr/lib/systemd/system/docker.service 找到 ExecStart，在最后面添加 -H tcp://0.0.0.0:2375，如下图所示 
3. 重启docker systemctl daemon-reload systemctl restart docker 4.开放端口 firewall-cmd --zone=public --add-port=2375/tcp --permanent 5.Idea安装docker插件,重启 
6.连接远程docker (1) 编辑配置 
(2) 填远程docker地址 
(3) 连接成功，会列出远程docker容器和镜像 
二、新建项目创建springboot项目 项目结构图 
(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目录下创建docker目录，并创建Dockerfile文件 FROM openjdk:8-jdk-alpineADD *.jar app.jarENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"] (3) 在resource目录下创建application.properties文件 logging.config=classpath:logback.xmllogging.path=/home/developer/app/logs/server.port=8990 (4) 创建DockerApplication文件 @SpringBootApplicationpublic class DockerApplication { public static void main(String[] args) { SpringApplication.run(DockerApplication.class, args); }}(5) 创建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 
命令解释 Image tag : 指定镜像名称和tag，镜像名称为 docker-demo，tag为1.1 Bind ports : 绑定宿主机端口到容器内部端口。格式为[宿主机端口]:[容器内部端口] Bind mounts : 将宿主机目录挂到到容器内部目录中。格式为[宿主机目录]:[容器内部目录] 这个springboot项目会将日志打印在容器 /home/developer/app/logs/ 目录下，将宿主机目录挂载到容器内部目录后，那么日志就会持久化容器外部的宿主机目录中。 (7) Maven打包 
(8) 运行 
这里我们可以看到镜像名称为docker-demo:1.1，docker容器为docker-server (9) 运行成功 
(10) 浏览器访问 
(11) 日志查看 
自此通过idea 部署springboot项目到docker成功！难以想象，部署一个Javaweb项目竟然如此简单方便！ 最后分享给大家相关学习教程👇： https://www.bilibili.com/video/BV14t411z77T IDEA教程 https://www.bilibili.com/video/BV1PZ4y1j7QK 
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