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
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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
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systemctl daemon-reload systemctl restart docker |
4.开放端口
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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
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<?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
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FROM openjdk: 8 -jdk-alpine ADD *.jar app.jar ENTRYPOINT [ "java" , "-Djava.security.egd=file:/dev/./urandom" , "-jar" , "/app.jar" ] |
(3) 在resource目录下创建application.properties文件
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logging.config=classpath:logback.xml logging.path=/home/developer/app/logs/ server.port= 8990 |
(4) 创建DockerApplication文件
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@SpringBootApplication public class DockerApplication { public static void main(String[] args) { SpringApplication.run(DockerApplication. class , args); } } |
(5) 创建DockerController文件
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@RestController public 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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原文链接:https://blog.csdn.net/bjpowernode_com/article/details/109173855