部署文章目录：目录
docker部署，原理，命令，可以参考：docker原理图，部署，命令
目录
将springboot部署到docker中
遇到过的问题：
pom配置
操作步骤
生成jar
构建镜像
查看镜像docker images
运行镜像
查看运行的镜像
将springboot部署到docker中
遇到过的问题：
- 生成出来的jar包缺少依赖JAR的
- 启动时找不到主类
- 容器启动后主机拒绝
pom配置
pom.xml的文件,下面红色的，是docker相关的
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.10-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.sheng</groupId>
<artifactId>myDemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>myDemo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2021.0.5</spring-cloud.version>
<dockerfile-maven-plugin.version>1.4.10</dockerfile-maven-plugin.version>
<docker.image.prefix>springboot</docker.image.prefix>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-loadbalancer</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.47</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.25</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>
<dependency>
<groupId>com.spotify</groupId>
<artifactId>dockerfile-maven-plugin</artifactId>
<version>${dockerfile-maven-plugin.version}</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<!--docker和maven结合的配置-->
<plugin>
<groupId>com.spotify</groupId>
<artifactId>dockerfile-maven-plugin</artifactId>
<version>${dockerfile-maven-plugin.version}</version>
<executions>
<execution>
<id>default</id>
<goals>
<!--如果package时不想用docker打包,就注释掉这个goal,
运行mvn package时，会自动执行build目标，构建Docker镜像。
当运行mvn deploy命令时，会自动执行push目标，将Docker镜像push到Docker仓库-->
<!--
<goal>build</goal>
<goal>push</goal>
-->
</goals>
</execution>
</executions>
<configuration>
<!--在maven运行docker时，dockerFile文件必须在这个文件夹内-->
<contextDirectory>${project.basedir}/docker</contextDirectory>
<!--repository指定docker镜像的repo名字-->
<repository>${docker.image.prefix}/demo</repository>
<!--tag指定docker镜像的tag-->
<tag>v1</tag>
<!--buildArgs可以指定一个或多个变量，传递给Dockerfile，在Dockerfile中通过ARG指令进行引用。暂时不用，注释掉-->
<!--
<buildArgs>
<JAR_FILE>${project.build.finalName}.jar</JAR_FILE>
</buildArgs>
-->
</configuration>
</plugin>
<plugin>
<!--用于生成jar的时候，将依赖的包也导入进去，否则无法启动，另外MANIFEST.MF文件中会找不到启动类-->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
<includeSystemScope>true</includeSystemScope>
<mainClass>${start-class}</mainClass>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</pluginRepository>
</pluginRepositories>
</project>
操作步骤
生成jar
先maven上点击clean compile package 在target生成JAR包（myDemo-0.0.1-SNAPSHOT.jar） 把它用解压缩包打开，看看MANIFEST.MF中有没有主函数入口，有红圈的就行，不然无法启动，会报错no main manifest attribute, in /xxxxx.jar异常 将 F:\workspace\arch\spring-cloud-demo\target\myDemo-0.0.1-SNAPSHOT.jar 拷贝到 F:\workspace\arch\spring-cloud-demo\docker F:\workspace\arch\spring-cloud-demo\docker 文件夹中应该有Dockerfile 和 myDemo-0.0.1-SNAPSHOT.jar
然后用bash做docker命令
docker images 查看镜像
构建镜像
docker build -t springboot/demo .
最后的警告没有影响
查看镜像docker images
删除镜像：只需删除镜像对应的image id即可，例如删除java执行命令： docker rmi d23bdf5b1b1b
若存在两个镜像的image id相同，需要通过REPOSITORY+TAG删除，例如删除java执行命令： docker rmi java 8
若报删除的镜像存在依赖镜像错误，则需通过 docker rm 【依赖镜像id】，命令依次删除依赖
若镜像已经运行，需要先停止运行再删除
运行镜像
docker run -p 8005:8005 -d springboot/demo
-p表示端口映射，此时将服务器中的8005端口映射到容器中的8005端口
查看运行的镜像
docker ps
查看所有容器，包含未运行的：docker ps -a
停止运行镜像：docker stop ceb5f1a71a29
11.浏览器访问 http://192.168.99.100:8005/ 出现项目页面，即发布成功
