Spring集成问题：“无法读取工件描述”

Question

我正在使用Spring集成进行学习，并且正在使用在他的网站上找到的教程。 在Adapter上进行练习，我正在使用以下基本pom文件：

<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.intertech.si</groupId>
    <artifactId>lab2-adapters</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>Spring Integration Lab 2</name>
    <description>Lab 2 - using adapters</description>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <springframework.version>4.0.4.RELEASE</springframework.version>
        <spring.integration.version>4.0.0.RELEASE</spring.integration.version>
        <spring.integration.xml.version>4.0.0.RELEASE</spring.integration.xml.version>
        <log4j.version>1.2.17</log4j.version>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-core</artifactId>
            <version>${spring.integration.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-stream</artifactId>
            <version>${spring.integration.version}</version>
        </dependency>

        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>
    </dependencies> 
</project>

按照教程的说明，我需要添加此依赖关系：

<dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-file</artifactId>
            <version>${spring.integration.version}</version>
        </dependency>

但是当我这样做并尝试保存文件时，控制台日志上出现很多错误：

Description Resource    Path    Location    Type
Failed to read artifact descriptor for org.springframework.integration:spring-integration-file:jar:4.0.0.RELEASE

org.eclipse.aether.resolution.ArtifactDescriptorException: Failed to read artifact descriptor for org.springframework.integration:spring-integration-file:jar:4.0.0.RELEASE
    at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:282)
    at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:198)
    at org.eclipse.aether.internal.impl.DefaultDependencyCollector.resolveCachedArtifactDescriptor(DefaultDependencyCollector.java:535)
    at org.eclipse.aether.internal.impl.DefaultDependencyCollector.getArtifactDescriptorResult(DefaultDependencyCollector.java:519)
    at org.eclipse.aether.internal.impl.DefaultDependencyCollector.processDependency(DefaultDependencyCollector.java:409)
    at org.eclipse.aether.internal.impl.DefaultDependencyCollector.processDependency(DefaultDependencyCollector.java:363)
    at org.eclipse.aether.internal.impl.DefaultDependencyCollector.process(DefaultDependencyCollector.java:351)
    at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:254)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:316)
    at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:172)
    at org.apache.maven.project.DefaultProjectBuilder.resolveDependencies(DefaultProjectBuilder.java:215)
    at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:188)
    at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:119)
    at org.eclipse.m2e.core.internal.embedder.MavenImpl.readMavenProject(MavenImpl.java:636)
    at org.eclipse.m2e.core.internal.project.registry.DefaultMavenDependencyResolver.resolveProjectDependencies(DefaultMavenDependencyResolver.java:63)
    at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refreshPhase2(ProjectRegistryManager.java:530)
    at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager$3.call(ProjectRegistryManager.java:492)
    at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager$3.call(ProjectRegistryManager.java:1)
    at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
    at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
    at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:496)
    at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:351)
    at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:298)
    at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration0(ProjectConfigurationManager.java:398)
    at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$2.call(ProjectConfigurationManager.java:345)
    at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$2.call(ProjectConfigurationManager.java:1)
    at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
    at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
    at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
    at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1351)
    at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:342)
    at org.eclipse.m2e.core.ui.internal.UpdateMavenProjectJob.runInWorkspace(UpdateMavenProjectJob.java:77)
    at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:39)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Failure to transfer org.springframework.integration:spring-integration-file:pom:4.0.0.RELEASE from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.springframework.integration:spring-integration-file:pom:4.0.0.RELEASE from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org: Errore temporaneo nella risoluzione del nome
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:444)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223)
    at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:267)
    ... 33 more
Caused by: org.eclipse.aether.transfer.ArtifactTransferException: Failure to transfer org.springframework.integration:spring-integration-file:pom:4.0.0.RELEASE from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.springframework.integration:spring-integration-file:pom:4.0.0.RELEASE from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org: Errore temporaneo nella risoluzione del nome
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:238)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:206)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:585)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:503)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
    ... 36 more
    pom.xml /lab2-adapters-starter  line 1  Maven Dependency Problem

他的问题特定于最后添加的权限，因为如果我尝试删除此文件并保存文件，则不会出错。

怎么了

Answer 1

下载文件时出现问题。 我不知道为什么，但是Maven无法自行解决。 如果没有更改，请转到本地存储库缓存，该缓存位于：[USER-DIR] .m2 \\ repository，然后删除“ org \\ springframework \\ integration”。

Answer 2

这个pom.xml文件在我的PC环境中运行良好。 但是我的本地m2存储库中没有任何其他旧的spring integration jar 。 因此，根据您的错误消息：

引起原因：org.eclipse.aether.resolution.ArtifactResolutionException：无法从https://repo.maven.apache.org/maven2传输org.springframework.integration：spring-integration-file：pom：4.0.0.RELEASE失败缓存在本地存储库中，直到Central的更新间隔或强制进行更新后，解析方案才会重新尝试。 原始错误：无法将工件org.springframework.integration：spring-integration-file：pom：4.0.0.RELEASE从/转移到中央（ https://repo.maven.apache.org/maven2）：repo.maven 。 apache.org：内罗·内罗·里索卢西奥内·德尔·诺姆

您是否在消息中注意到“来自https://repo.maven.apache.org/maven2的消息已缓存在本地存储库中 ”消息？

也许，您本地存储库中的先前版本的spring integration jar与新的spring integration jar.冲突spring integration jar.

1）第一种方式（我确定是这样）
我认为您需要删除文件夹$HOME/.m2/repository/org/springframework/integration

之后，使用mvn命令或Eclipse重建并更新Maven 。

2）第二种方式（我不确定）
您不需要删除任何旧的jar。 您只需要使用mvn命令或Eclipse强制更新存储库即可。