Question

我在SpringToolSuite中有一个动态Web项目。它被转换为Maven项目。

我遇到了问题：

Mising artifact org.springframework：spring.jar：4.2.6

我已经尝试过清理，重建和运行项目。它给出了：

读取文件时出错 C：\ Users \用户jublikon.m2 \库\组织\ springframework的\弹簧\ 4.2.6 \弹簧4.2.6.jar C：\ Users \用户jublikon.m2 \库\组织\ springframework的\弹簧\ 4.2.6 \弹簧4.2.6.jar （系统找不到指定的文件）

我不明白为什么在使用Maven时要求提供jar文件？

的pom.xml

    <?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <modelVersion>4.0.0</modelVersion>
  <groupId>HelloWeb</groupId>
  <artifactId>HelloWeb</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <scope>compile</scope>
    </dependency>
  </dependencies>
  <repositories>
    <repository>
      <snapshots>
        <enabled>false</enabled>
      </snapshots>
      <id>central</id>
      <name>Central Repository</name>
      <url>https://repo.maven.apache.org/maven2</url>
    </repository>
  </repositories>
  <pluginRepositories>
    <pluginRepository>
      <releases>
        <updatePolicy>never</updatePolicy>
      </releases>
      <snapshots>
        <enabled>false</enabled>
      </snapshots>
      <id>central</id>
      <name>Central Repository</name>
      <url>https://repo.maven.apache.org/maven2</url>
    </pluginRepository>
  </pluginRepositories>
  <build>
    <sourceDirectory>C:\Users\name\Development\Spring\Projects\HelloWeb\src\main\java</sourceDirectory>
    <scriptSourceDirectory>C:\Users\name\Development\Spring\Projects\HelloWeb\src\main\scripts</scriptSourceDirectory>
    <testSourceDirectory>C:\Users\name\Development\Spring\Projects\HelloWeb\src\test\java</testSourceDirectory>
    <outputDirectory>C:\Users\name\Development\Spring\Projects\HelloWeb\target\classes</outputDirectory>
    <testOutputDirectory>C:\Users\jublikon\Development\Spring\Projects\HelloWeb\target\test-classes</testOutputDirectory>
    <resources>
      <resource>
        <directory>C:\Users\jublikon\Development\Spring\Projects\HelloWeb\src\main\resources</directory>
      </resource>
    </resources>
    <testResources>
      <testResource>
        <directory>C:\Users\jublikon\Development\Spring\Projects\HelloWeb\src\test\resources</directory>
      </testResource>
    </testResources>
    <directory>C:\Users\jublikon\Development\Spring\Projects\HelloWeb\target</directory>
    <finalName>HelloWeb-0.0.1-SNAPSHOT</finalName>
    <pluginManagement>
      <plugins>
        <plugin>
          <artifactId>maven-antrun-plugin</artifactId>
          <version>1.3</version>
        </plugin>
        <plugin>
          <artifactId>maven-assembly-plugin</artifactId>
          <version>2.2-beta-5</version>
        </plugin>
        <plugin>
          <artifactId>maven-dependency-plugin</artifactId>
          <version>2.8</version>
        </plugin>
        <plugin>
          <artifactId>maven-release-plugin</artifactId>
          <version>2.3.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.3</version>
        <executions>
          <execution>
            <id>default-compile</id>
            <phase>compile</phase>
            <goals>
              <goal>compile</goal>
            </goals>
            <configuration>
              <source>1.8</source>
              <target>1.8</target>
            </configuration>
          </execution>
          <execution>
            <id>default-testCompile</id>
            <phase>test-compile</phase>
            <goals>
              <goal>testCompile</goal>
            </goals>
            <configuration>
              <source>1.8</source>
              <target>1.8</target>
            </configuration>
          </execution>
        </executions>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.6</version>
        <executions>
          <execution>
            <id>default-war</id>
            <phase>package</phase>
            <goals>
              <goal>war</goal>
            </goals>
            <configuration>
              <warSourceDirectory>WebContent</warSourceDirectory>
              <failOnMissingWebXml>false</failOnMissingWebXml>
            </configuration>
          </execution>
        </executions>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
          <failOnMissingWebXml>false</failOnMissingWebXml>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-clean-plugin</artifactId>
        <version>2.5</version>
        <executions>
          <execution>
            <id>default-clean</id>
            <phase>clean</phase>
            <goals>
              <goal>clean</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-resources-plugin</artifactId>
        <version>2.6</version>
        <executions>
          <execution>
            <id>default-testResources</id>
            <phase>process-test-resources</phase>
            <goals>
              <goal>testResources</goal>
            </goals>
          </execution>
          <execution>
            <id>default-resources</id>
            <phase>process-resources</phase>
            <goals>
              <goal>resources</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>2.12.4</version>
        <executions>
          <execution>
            <id>default-test</id>
            <phase>test</phase>
            <goals>
              <goal>test</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-install-plugin</artifactId>
        <version>2.4</version>
        <executions>
          <execution>
            <id>default-install</id>
            <phase>install</phase>
            <goals>
              <goal>install</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-deploy-plugin</artifactId>
        <version>2.7</version>
        <executions>
          <execution>
            <id>default-deploy</id>
            <phase>deploy</phase>
            <goals>
              <goal>deploy</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-site-plugin</artifactId>
        <version>3.3</version>
        <executions>
          <execution>
            <id>default-site</id>
            <phase>site</phase>
            <goals>
              <goal>site</goal>
            </goals>
            <configuration>
              <outputDirectory>C:\Users\jublikon\Development\Spring\Projects\HelloWeb\target\site</outputDirectory>
              <reportPlugins>
                <reportPlugin>
                  <groupId>org.apache.maven.plugins</groupId>
                  <artifactId>maven-project-info-reports-plugin</artifactId>
                </reportPlugin>
              </reportPlugins>
            </configuration>
          </execution>
          <execution>
            <id>default-deploy</id>
            <phase>site-deploy</phase>
            <goals>
              <goal>deploy</goal>
            </goals>
            <configuration>
              <outputDirectory>C:\Users\jublikon\Development\Spring\Projects\HelloWeb\target\site</outputDirectory>
              <reportPlugins>
                <reportPlugin>
                  <groupId>org.apache.maven.plugins</groupId>
                  <artifactId>maven-project-info-reports-plugin</artifactId>
                </reportPlugin>
              </reportPlugins>
            </configuration>
          </execution>
        </executions>
        <configuration>
          <outputDirectory>C:\Users\jublikon\Development\Spring\Projects\HelloWeb\target\site</outputDirectory>
          <reportPlugins>
            <reportPlugin>
              <groupId>org.apache.maven.plugins</groupId>
              <artifactId>maven-project-info-reports-plugin</artifactId>
            </reportPlugin>
          </reportPlugins>
        </configuration>
      </plugin>
    </plugins>
  </build>
  <reporting>
    <outputDirectory>C:\Users\jublikon\Development\Spring\Projects\HelloWeb\target\site</outputDirectory>
  </reporting>
</project>

我已经看过这个post，但不知怎的，我无法解决我的问题。

执行时

mvn clean install

在项目的根目录中我得到：

>mvn clean install
[INFO] Scanning for projects...
Downloading: https://repo.maven.apache.org/maven2/org/springframework/spring-framework-bom/$%7Bspring.version%7D/spring-framework-bom-$%7Bspring.version%7D.pom
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[ERROR] Non-resolvable import POM: Could not find artifact org.springframework:spring-framework-bom:pom:${spring.version} in central (https://repo.maven.apache.org/maven2) @ line 29, column 21
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-context:jar is missing. @ line 40, column 17
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-core:jar is missing. @ line 44, column 17
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-web:jar is missing. @ line 48, column 17
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-webmvc:jar is missing. @ line 52, column 17
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-aspects:jar is missing. @ line 56, column 17
 @
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]
[ERROR]   The project HelloWeb:HelloWeb:0.0.1-SNAPSHOT (C:\Users\jublikon\Development\Spring\Projects\HelloWeb\pom.xml) has 6 errors
[ERROR]     Non-resolvable import POM: Could not find artifact org.springframework:spring-framework-bom:pom:${spring.version} in central (https://repo.maven.apache.org/maven2) @ line 29, column 21 -> [Help 2]
[ERROR]     'dependencies.dependency.version' for org.springframework:spring-context:jar is missing. @ line 40, column 17
[ERROR]     'dependencies.dependency.version' for org.springframework:spring-core:jar is missing. @ line 44, column 17
[ERROR]     'dependencies.dependency.version' for org.springframework:spring-web:jar is missing. @ line 48, column 17
[ERROR]     'dependencies.dependency.version' for org.springframework:spring-webmvc:jar is missing. @ line 52, column 17
[ERROR]     'dependencies.dependency.version' for org.springframework:spring-aspects:jar is missing. @ line 56, column 17
[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

我还检查了我的代理设置。 eclipse中的活跃提供程序将设置为“本地”＆＃39;我没有通过代理连接

在目录

中

〜/ .m2目录/ settings.xml中

main is org.apache.maven.cli.MavenCli from plexus.core

set maven.home default ${user.home}/m2

[plexus.core]
optionally ${maven.home}/lib/ext/*.jar
load       ${maven.home}/lib/*.jar
load       ${maven.home}/conf/logging

Answer 1

我很确定没有名为“spring”的神器

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring</artifactId>           <!-- *** spring doesn't *** exist  -->
    <version>4.2.6</version>
</dependency>

根据您需要的Spring组件，您应该基本上包含这些依赖项：

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

在我的Spring项目中，我通过BOM（物料清单）包含Spring工件：

<properties>
    <spring.version>4.2.6.RELEASE</spring.version>
</properties>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-framework-bom</artifactId>
            <version>${spring.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
    </dependency>
<!-- more -->
</dependencies>

Answer 2

对我有用的是我删除了

/Users/username/.m2/repository/org/springframework/spring/目录

，然后在我的项目中运行mvn clean install命令。

通过这种方式，Maven下载了以前我认为无法识别的真实.jar文件。

Answer 3

默认情况下，Maven会将所需的依赖项下载到本地存储库，以便下次可以更快地访问它们。可能是依赖项已损坏，或从本地磁盘中删除？您是否检查过C：\ Users \ jublikon.m2 \ repository \ org \ springframework \ spring \ 4.2.6 \ spring-4.2.6.jar是否存在并且是一个有效的spring jar文件？

Answer 4

对我有用的是我从mvnrepository下载了jar文件，然后从构建路径中添加了这些文件，然后在Maven构建中进行了干净的编译安装，然后验证了项目，然后更新了项目，错误消失了。

Answer 5

对于spring框架，我在pom.xml文件中使用以下依赖项

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-test</artifactId>
    <version>4.3.2RELEASE</version>
    <scope>test</scope>
</dependency>

但是它给了我错误

缺少神器 org.springframework.boot：spring-boot-starter-test：jar：4.3.2.RELEASE

但是当我将版本更改为最新版本时，该错误已消除。

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-test</artifactId>
    <version>5.2.1.RELEASE</version>
    <scope>test</scope>
</dependency>

所以请尝试使用最新版本。

Answer 6

此问题是由于所需的.jar文件在.m2存储库中不可用。

右键单击项目->Maven ->project Update 。
如果您使用的是工作单位提供的settings.xml，请删除该settings.xml并重复步骤1。当您放置settings.xml时，它总是尝试从组织存储库中下载所需的.jar文件。

Maven：缺少工件org.springframework：spring：jar：4.2.6

6 个答案: