【发布时间】:2020-03-06 12:57:42
【问题描述】:
解决方案更新 这个错误似乎是问题的原因:https://github.com/vaadin/flow/issues/6657
当修复推出时,标记的答案可以用作解决方法
背景
我正在为我的IoT project 创建一个基于 portal 的 dockerized、Spring Boot + Vaadin 流。
问题
门户在我的机器上以 Vaadin 的开发模式运行良好,安装了 npm,但我似乎无法获得正确的设置来创建已经包含所有生成的前端组件的轻量级部署 jar。
当我在 Docker 容器中运行该服务时,我收到它找不到 npm 的错误,但我认为生产部署不需要它
at com.vaadin.flow.server.startup.DevModeInitializer.initDevModeHandler(DevModeInitializer.java:327)
at com.vaadin.flow.spring.VaadinServletContextInitializer$DevModeServletContextListener.contextInitialized(VaadinServletContextInitializer.java:323)
... 46 common frames omitted
Caused by: com.vaadin.flow.server.ExecutionFailedException:
Failed to determine 'npm' tool.
Please install it either:
- by following the https://nodejs.org/en/download/ guide to install it globally
- or by running the frontend-maven-plugin goal to install it in this project:
$ mvn com.github.eirslett:frontend-maven-plugin:1.7.6:install-node-and-npm -DnodeVersion="v12.13.0"
Docker 文件没有 npm:
FROM openjdk:11-jre-slim
ARG PROJECT
ARG SERVICE_PORT
ARG JAR_FILE
EXPOSE ${SERVICE_PORT}
RUN mkdir /${PROJECT}
WORKDIR /${PROJECT}
ADD target/${JAR_FILE} ./app.jar
CMD ["java","-jar","app.jar"]
pom.xml(已更新!)
<?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>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.tlvlp</groupId>
<artifactId>iot-portal</artifactId>
<version>0.0.2</version>
<name>iot-portal</name>
<description>tlvlp IoT server portal</description>
<properties>
<java.version>11</java.version>
<vaadin.version>14.0.12</vaadin.version>
<dockerfile.maven.version>1.4.13</dockerfile.maven.version>
<flow.server.prod.version>2.0.17</flow.server.prod.version>
<!-- DOCKER IMAGE ARGS -->
<docker.project.repository>tlvlp/iot-portal</docker.project.repository>
<service.port>8600</service.port>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<version>${vaadin.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>prod</id>
<properties>
<activatedProperties>prod</activatedProperties>
<vaadin.productionMode>true</vaadin.productionMode>
</properties>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>flow-server-production-mode</artifactId>
<version>${flow.server.prod.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>flow-maven-plugin</artifactId>
<version>${flow.server.prod.version}</version>
<executions>
<execution>
<goals>
<goal>build-frontend</goal>
<goal>copy-production-files</goal>
<goal>package-for-production</goal>
</goals>
<phase>compile</phase>
</execution>
</executions>
</plugin>
<plugin>
<groupId>com.spotify</groupId>
<artifactId>dockerfile-maven-plugin</artifactId>
<version>${dockerfile.maven.version}</version>
<executions>
<execution>
<id>prod</id>
<goals>
<goal>build</goal>
<goal>push</goal>
</goals>
</execution>
</executions>
<configuration>
<repository>${docker.project.repository}</repository>
<tag>${project.version}</tag>
<tag>latest</tag>
<buildArgs>
<PROJECT>${project.groupId}.${project.artifactId}</PROJECT>
<SERVICE_PORT>${service.port}</SERVICE_PORT>
<JAR_FILE>${project.build.finalName}.jar</JAR_FILE>
</buildArgs>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>dev</id>
<properties>
<activatedProperties>dev</activatedProperties>
<vaadin.productionMode>false</vaadin.productionMode>
</properties>
</profile>
</profiles>
</project>
application.properties
spring.profiles.active=@activatedProperties@
application-prod.properties
vaadin.compatibilityMode=false
vaadin.servlet.productionMode=true
感谢任何指导 :)
所有代码都可以在项目公共仓库的master分支上找到:https://github.com/tlvlp/iot-portal
【问题讨论】:
-
您是否在生产模式下运行?您可以默认启用配置文件,如下所示:stackoverflow.com/questions/6849483/…
-
@anasmi 谢谢,我正在使用 prod 配置文件运行 maven 构建,自从我上次更新以来,我已经设法让 spring-boot 在运行时使用 prod 配置文件,但 Vaadin 似乎仍在尝试使用开发配置文件并查找 npm。我已经更新了上面的 pom.xml 并添加了属性文件的相关部分。
-
我在你的 pom.xml 中没有看到
jar ,应该在一开始就在那里。 -
@TatuLund 它包含在 spring-boot-starter-parent 项目中,在我的 pom.xml 中被引用为父项目。我能够构建 jar 并通过查看内容,它包含预先构建的前端组件(但我是前端世界的新手,所以我可能会弄错)但由于某种原因我不能让 Vaadin 使用它们
标签: java maven spring-boot docker vaadin-flow