IDEA和Docker相遇后产生了化学反应，结果...

偏执的太偏执、 2022-12-28 06:21 78阅读 0赞

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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

![format_png 2][]

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

![format_png 3][]

6. 连接远程docker

(1) 编辑配置

![format_png 4][]

(2) 填远程docker地址

![format_png 5][]

(3) 连接成功，会列出远程docker容器和镜像

![format_png 6][]

### 二、新建项目 ###

1. 创建springboot项目

项目结构图

![format_png 7][]

(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

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

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

(4) 创建DockerApplication文件

@SpringBootApplication
    public class DockerApplication {
        public static void main(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

![format_png 8][] ![format_png 9][] ![format_png 10][]

**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。

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(7) Maven打包

![format_png 11][]

(8) 运行

![format_png 12][] ![format_png 13][]

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

![format_png 14][]

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

![format_png 15][]

(10) 浏览器访问

![format_png 16][]

(11) 日志查看

![format_png 17][]

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！

作者：陶章好

链接：https://juejin.im/post/5d026212f265da1b8608828b

**在微信公众号后台回复**关键字: **idea** (为防止出错: 强烈建议直接复制关键字到后台回复)获取IDEA完整版视频合集讲解资源

**在微信公众号后台回复**关键字: **docker** 获取docker相关视频讲解资源

![图片][06db1ba5ea516dc14d91e9e942677c0e.gif]

**推荐阅读：**

**1、[为了甩锅，我写了个牛逼的日志切面！][Link 1]**

**[2][][、][2][Redis的8大数据类型，写得非常好！][Redis_8]**

**3、[最新SQL数据库面试题以及答案！][SQL]**

**[4、][4][MyBatis 如何兼容所有日志框架？][MyBatis]**

**5、[面试官：来说说单点登录的三种实现方式][Link 2]**

**[6、][6][这5个能挣钱的 SpringBoot 项目，真TMD香！][5_ SpringBoot _TMD]**

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