问题描述
starter page的Vaadin Flow已更改。该页面现在提供仅为Spring Boot配置的新项目。此页面的先前版本为“普通Java Servlet”以及Spring / CDI提供了一个选项。
Vaadin文档建议手动使用Maven原型。但是com.vaadin…的Maven储存库似乎是针对Vaadin 8及更早版本，而针对Vaadin 10及更高版本则没有。
Vaadin page on learning Maven显示了使用viritin-vaadin-flow-archetype作为原型的示例。但是Viritin是第三方项目，会添加我目前不需要的库。
➥是否有一条仅使用普通Java Servlet即可在Jetty或Tomcat上运行而无需Spring / CDI的方式启动新的Vaadin 16项目的途径？ （或Vaadin 17预发布）
还是Vaadin Ltd公司决定现在仅支持Spring？ （那将是最不幸的。）
解决方法
至少Maven原型vaadin-archetype-application似乎适用于v16以下的版本：
mvn archetype:generate -DarchetypeGroupId=com.vaadin -DarchetypeArtifactId=vaadin-archetype-application -DarchetypeVersion=LATEST
我应该更新该教程...谢谢您的提示。
,我成功使用了vaadin-archetype-application中显示的Maven原型Answer by Alejandro Duarte。
示例POM
我调整了由该原型产生的POM文件。主要是我更新了各个部分的最新版本，包括Vaadin 17 beta。
这是我生成的POM，如下所示。其他人可能希望将初始POM与该模型进行比较，以考虑各种问题。
<?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>com.basil.pasttense</groupId>
<artifactId>PastTense</artifactId>
<version>1.0-SNAPSHOT</version>
<name>My Application</name>
<packaging>war</packaging>
<properties>
<!--<maven.compiler.source>11</maven.compiler.source>-->
<!--<maven.compiler.target>11</maven.compiler.target>-->
<maven.compiler.release>15</maven.compiler.release>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<failOnMissingWebXml>false</failOnMissingWebXml>
<vaadin.version>17.0.0.beta1</vaadin.version>
</properties>
<repositories>
<!-- The order of definitions matters. Explicitly defining central here to make sure it has the highest priority. -->
<!-- Main Maven repository -->
<repository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<!-- Repository used by many Vaadin add-ons: https://vaadin.com/directory -->
<repository>
<id>Vaadin Directory</id>
<url>https://maven.vaadin.com/vaadin-addons</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>vaadin-prerelease</id>
<url>https://maven.vaadin.com/vaadin-prereleases</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>vaadin-prerelease</id>
<url>https://maven.vaadin.com/vaadin-prereleases</url>
</pluginRepository>
</pluginRepositories>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<type>pom</type>
<scope>import</scope>
<version>${vaadin.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<!-- Replace artifactId with vaadin-core to use only free components -->
<artifactId>vaadin</artifactId>
<exclusions>
<!-- Webjars are only needed when running in Vaadin 13 compatibility mode -->
<exclusion>
<groupId>com.vaadin.webjar</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.insites</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.polymer</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.polymerelements</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.vaadin</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.webjars.bowergithub.webcomponents</groupId>
<artifactId>*</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Added to provide logging output as Flow uses -->
<!-- the unbound SLF4J no-operation (NOP) logger implementation -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>5.7.0-RC1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<defaultGoal>jetty:run</defaultGoal>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
</plugin>
<!-- We use jetty plugin,replace it with your favourite developing servlet container -->
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>10.0.0.beta1</version>
<!--<configuration>-->
<!-- <scanIntervalSeconds>1</scanIntervalSeconds>-->
<!--</configuration>-->
</plugin>
<!--
Take care of synchronizing java dependencies and imports in
package.json and main.js files.
It also creates webpack.config.js if not exists yet.
-->
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>prepare-frontend</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<!-- Production mode is activated using -Pproduction -->
<id>production</id>
<properties>
<vaadin.productionMode>true</vaadin.productionMode>
</properties>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>flow-server-production-mode</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>build-frontend</goal>
</goals>
<phase>compile</phase>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
设置时间 控制面板
错误1：Request method ‘DELETE‘ not supported 错误还原：...