目錄
- 一、開發(fā)前準(zhǔn)備
- 二、新建項(xiàng)目
Idea是Java開發(fā)利器,SpringBoot是Java生態(tài)中最流行的微服務(wù)框架,docker是時(shí)下最火的容器技術(shù),那么它們結(jié)合在一起會(huì)產(chǎn)生什么化學(xué)反應(yīng)呢?
一、開發(fā)前準(zhǔn)備
1. Docker的安裝可以參考https://docs.docker.com/install/
2. 配置docker遠(yuǎn)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(yuǎn)程docker
(1) 編輯配置
(2) 填遠(yuǎn)程docker地址
(3) 連接成功,會(huì)列出遠(yuǎn)程docker容器和鏡像
二、新建項(xiàng)目
創(chuàng)建springboot項(xiàng)目
項(xiàng)目結(jié)構(gòu)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-alpine
ADD *.jar app.jar
ENTRYPOINT ["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.xml
logging.path=/home/developer/app/logs/
server.port=8990
(4) 創(chuàng)建DockerApplication文件
@SpringBootApplication
public class DockerApplication {
public static void main(String[] args) {
SpringApplication.run(DockerApplication.class, args);
}
}
(5) 創(chuàng)建DockerController文件
@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(jī)端口到容器內(nèi)部端口。格式為[宿主機(jī)端口]:[容器內(nèi)部端口]
Bind mounts : 將宿主機(jī)目錄掛到到容器內(nèi)部目錄中。格式為[宿主機(jī)目錄]:[容器內(nèi)部目錄]
這個(gè)springboot項(xiàng)目會(huì)將日志打印在容器 /home/developer/app/logs/ 目錄下,將宿主機(jī)目錄掛載到容器內(nèi)部目錄后,那么日志就會(huì)持久化容器外部的宿主機(jī)目錄中。
(7) Maven打包
(8) 運(yùn)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(yùn)行成功
(10) 瀏覽器訪問
(11) 日志查看
自此通過idea 部署springboot項(xiàng)目到docker成功!難以想象,部署一個(gè)Javaweb項(xiàng)目竟然如此簡(jiǎn)單方便!
最后分享給大家相關(guān)學(xué)習(xí)教程👇:
https://www.bilibili.com/video/BV14t411z77T
IDEA教程
https://www.bilibili.com/video/BV1PZ4y1j7QK
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