问题描述
我在 IntelliJ 2018.3中有一个正在工作的项目，用于 Vaadin 11，使用 项目基础 入门包.
I have a working project in IntelliJ 2018.3 for Vaadin 11, created using the Project Base starter-pack.
➥如何从 Vaadin 11.0.0 切换到 Vaadin 12.0.0.alpha4 ?
我在这里的问题与此类似， Vaadin 8 alpha/beta预发行失败，并显示不可解析的导入POM:找不到错误" .该页面上的解决方案是在IntelliJ的 Maven 侧边栏.但是对于Vaadin 11项目，唯一找到的此类复选框标记为production-mode.
My Question here is similar to this one, Vaadin 8 alpha/beta prerelease fail with "Non-resolvable import POM: Failure to find" errors. The solution on that page was to enable a vaadin-prerelease checkbox in the Profiles list in the Maven sidebar of IntelliJ. But with a Vaadin 11 project, the only such checkbox found there is labeled production-mode.
在项目的Maven POM文件pom.xml中，我尝试切换:
In the project’s Maven POM file, pom.xml, I tried switching:
<vaadin.version>11.0.0</vaadin.version>
…至:
<vaadin.version>12.0.0.alpha4</vaadin.version>
使用该版本号执行Maven clean时，出现以下错误:
When executing a Maven clean with this version number in place, I get these errors:
[INFO] Scanning for projects...
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[ERROR] Non-resolvable import POM: Failure to find com.vaadin:vaadin-bom:pom:12.0.0.alpha4 in http://maven.vaadin.com/vaadin-addons was cached in the local repository, resolution will not be reattempted until the update interval of Vaadin Directory has elapsed or updates are forced @ line 28, column 25
[ERROR] 'dependencies.dependency.version' for com.vaadin:vaadin-core:jar is missing. @ line 39, column 21
[ERROR] 'dependencies.dependency.version' for org.slf4j:slf4j-simple:jar is missing. @ line 46, column 21
@
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]
[ERROR] The project com.basilbourque.acme:acme:1.0-SNAPSHOT (/Users/basilbourque/IdeaProjects/Acme/pom.xml) has 3 errors
[ERROR] Non-resolvable import POM: Failure to find com.vaadin:vaadin-bom:pom:12.0.0.alpha4 in http://maven.vaadin.com/vaadin-addons was cached in the local repository, resolution will not be reattempted until the update interval of Vaadin Directory has elapsed or updates are forced @ line 28, column 25 -> [Help 2]
[ERROR] 'dependencies.dependency.version' for com.vaadin:vaadin-core:jar is missing. @ line 39, column 21
[ERROR] 'dependencies.dependency.version' for org.slf4j:slf4j-simple:jar is missing. @ line 46, column 21
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException
推荐答案
简单方法
Vaadin Ltd现在使此操作变得更加容易.他们在页面上添加了一个标签，其中列出了预配置为使用最新预发布版本的POM的入门包.
The easy way
Vaadin Ltd now makes this easier. They added a tab on the page listing starter-packs for a POM pre-configured to use the latest pre-release.
https://vaadin.com/start/pre-release
我不不知道以下解决方案是否正确，但似乎可行.不幸的是，Vaadin网站上没有记录解决方案，因此我提出了要求.
I do not know if the following solution is proper, but it seems to be working. Unfortunately a solution is not documented on the Vaadin site, so I put in a request.
似乎是 Project Base构建的 POM 文件 em> starter-pack缺少必要的 Maven 配置设置，无法找到预发布的alpha/beta版本Vaadin的版本.
It seems the POM file built by the Project Base starter-pack lacks the necessary Maven configuration settings to find the alpha/beta pre-release versions of Vaadin.
自2018年11月15日起，对于Vaadin 12.0.0.beta2，采用一个工作项目，例如从Vaadin初学者包装的项目库"中创建的一个项目，并进行以下更改.今天可以使用，但是我有过去几周有很多麻烦.我怀疑问题是某些Maven或Vaadin信息库未正确更新，并且缺少一些关键文件.无论如何，它在今天仍然有效.
As of 2018-11-15, for Vaadin 12.0.0.beta2, take a working project such as one created from "Project Base" on the Vaadin pago of starter-packs, and make the following changes. This works today, but I have had much trouble over past weeks. I suspect the problem was that some Maven or Vaadin repositories were not updated properly, and were missing some key file(s). At any rate, it works today.
首先，在 发布 页面上GitHub上的 vaadin/platform .今天是12.0.0.beta2.
First, find the latest alpha or beta version number at the Releases page for vaadin/platform on GitHub. Today that is 12.0.0.beta2.
(1)
为Maven刷新本地缓存.
Refresh your local cache for Maven.
在IntelliJ 2018中，选择Preferences/Settings> Build, Execution, Deployment> Build Tools> Maven> Repositories> Update(按钮).
In IntelliJ 2018, choose Preferences/Settings > Build, Execution, Deployment > Build Tools > Maven > Repositories > Update (button).
(2)
在项目的POM文件中，更改以下内容:
In the POM file of your project, change this:
<vaadin.version>11.0.2</vaadin.version>
…对此:
<vaadin.version>12.0.0.beta2</vaadin.version>
(3)
内部中的repositories元素中，添加以下内容:
Inside the repositories element, add this:
<repository>
<id>vaadin-prereleases</id>
<url>https://maven.vaadin.com/vaadin-prereleases</url>
</repository>
(4)
在元素下方，添加以下内容:
Below the repositories element, add this:
<pluginRepositories>
<!-- Repository needed for prerelease versions of Vaadin -->
<pluginRepository>
<id>vaadin-prereleases</id>
<url>https://maven.vaadin.com/vaadin-prereleases</url>
</pluginRepository>
</pluginRepositories>
(5)
执行Maven clean和install.
Perform a Maven clean and install.
验证您的 POM 没有报告错误.
Verify that your POM reports no errors.
这是我从 POM 的完整作品.在 项目库 .com/start/latest"rel =" nofollow noreferrer>入门包页面.
Here is a complete working POM that I adapted from the Project Base found on the page of starter-packs.
要找到我的3个更改，请搜索措词:alphas-betas
To find my 3 changes, search for the phrasing: alphas-betas
<?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.basilbourque.acme</groupId>
<artifactId>acme</artifactId>
<name>Acme</name>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<failOnMissingWebXml>false</failOnMissingWebXml>
<!--<vaadin.version>11.0.2</vaadin.version>-->
<!--Change above line to line below for alphas-betas-->
<vaadin.version>12.0.0.beta2</vaadin.version>
</properties>
<repositories>
<!-- Repository used by many Vaadin add-ons -->
<repository>
<id>Vaadin Directory</id>
<url>http://maven.vaadin.com/vaadin-addons</url>
</repository>
<!--Add this for alphas-betas-->
<repository>
<id>vaadin-prereleases</id>
<url>https://maven.vaadin.com/vaadin-prereleases</url>
</repository>
</repositories>
<!--Add this for alphas-betas-->
<pluginRepositories>
<!-- Repository needed for prerelease versions of Vaadin -->
<pluginRepository>
<id>vaadin-prereleases</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>${vaadin.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-core</artifactId>
</dependency>
<!-- Added to provide logging output as Flow uses -->
<!-- the unbound SLF4J no-operation (NOP) logger implementation -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!-- Jetty plugin for easy testing without a server -->
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.4.11.v20180605</version>
<configuration>
<scanIntervalSeconds>1</scanIntervalSeconds>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<!-- Production mode can be activated with either property or profile -->
<id>production-mode</id>
<activation>
<property>
<name>vaadin.productionMode</name>
</property>
</activation>
<properties>
<vaadin.productionMode>true</vaadin.productionMode>
</properties>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>flow-server-production-mode</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>copy-production-files</goal>
<goal>package-for-production</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
这篇关于将基于Vaadin 11的Maven驱动的项目更改为Vaadin 12 alpha版本?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！