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Java开发提升十倍生产力:Idea远程一键部署springbo

2019-06-14  本文已影响53人  java菲

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复制代码

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 start docker

4. 开放端口

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

5. Idea安装插件,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

1. 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId>docker-demo</groupId>

<artifactId>com.demo</artifactId>

<version>1.0-SNAPSHOT</version>

<parent>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>2.0.2.RELEASE</version>

<relativePath />

</parent>

<properties>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

<docker.image.prefix>com.demo</docker.image.prefix>

<java.version>1.8</java.version>

</properties>

<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>

<dependencies>

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-web</artifactId>

</dependency>

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-test</artifactId>

<scope>test</scope>

</dependency>

<dependency>

<groupId>log4j</groupId>

<artifactId>log4j</artifactId>

<version>1.2.17</version>

</dependency>

</dependencies>

</project>

(2) 在src/main目录下创建docker目录,并创建Dockerfile文件

FROMopenjdk: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.xml

logging.path=/home/developer/app/logs/

server.port=8990

(4) 创建DockerApplication文件

@SpringBootApplicationpublicclassDockerApplication{publicstaticvoidmain(String[] args) { SpringApplication.run(DockerApplication.class, args); }}

(5) 创建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

命令解释

Image tag : 指定镜像名称和tag,镜像名称为 docker-demotag1.1

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

先pull基础镜像,然后再打包镜像,并将镜像部署到远程docker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!

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