执行器依赖性无法解决
Actuator dependency could not be resolved
我试图在我的项目中包含 spring 执行器,但是当我添加依赖项并 运行 maven clean install 我收到错误消息:
[ERROR] Failed to execute goal on project demo: Could not resolve dependencies for project com.example:demo:jar:0.0.1-SNAPSHOT: Failed to collect dependencies at org.springframework.boot:spring-boot-starter-actuator:jar:2.2.4.RELEASE: Failed to read artifact descriptor for org.springframework.boot:spring-boot-starter-actuator:jar:2.2.4.RELEASE: Could not transfer artifact org.springframework.boot:spring-boot-starter-actuator:pom:2.2.4.RELEASE from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org: Unknown host repo.maven.apache.org -> [Help 1]
查看下面我的 pom 文件:
<?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>2.2.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>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.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
如果我删除执行器依赖项,项目将成功构建。
我试图找到问题所在,似乎与我使用的 spring-boot-starter-parent 的版本有冲突,但我找不到解决方案。
这个问题其实和spring或者spring开机没有关系:
显然是 maven 中央存储库中的执行器 exists。所以这纯粹是一个专家问题。
Unknown host repo.maven.apache.org -> [Help 1]
此异常表示maven 无法联系中央存储库并将执行器jar 下载到本地存储库。
所以我会检查本地存储库,它可能是空的或包含一些损坏的工件。
- 确保您可以访问互联网
- 从 m2 存储库中删除损坏的工件
- 重新尝试运行
mvn package
我用IDEA遇到了同样的问题,我的原因是我的Maven在离线模式下工作,所以我通过以下两步解决了它:
- go to IDEA settings and click Maven.
- uncheck the work offline checkbox.
我试图在我的项目中包含 spring 执行器,但是当我添加依赖项并 运行 maven clean install 我收到错误消息:
[ERROR] Failed to execute goal on project demo: Could not resolve dependencies for project com.example:demo:jar:0.0.1-SNAPSHOT: Failed to collect dependencies at org.springframework.boot:spring-boot-starter-actuator:jar:2.2.4.RELEASE: Failed to read artifact descriptor for org.springframework.boot:spring-boot-starter-actuator:jar:2.2.4.RELEASE: Could not transfer artifact org.springframework.boot:spring-boot-starter-actuator:pom:2.2.4.RELEASE from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org: Unknown host repo.maven.apache.org -> [Help 1]
查看下面我的 pom 文件:
<?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>2.2.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>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.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
如果我删除执行器依赖项,项目将成功构建。
我试图找到问题所在,似乎与我使用的 spring-boot-starter-parent 的版本有冲突,但我找不到解决方案。
这个问题其实和spring或者spring开机没有关系: 显然是 maven 中央存储库中的执行器 exists。所以这纯粹是一个专家问题。
Unknown host repo.maven.apache.org -> [Help 1]
此异常表示maven 无法联系中央存储库并将执行器jar 下载到本地存储库。 所以我会检查本地存储库,它可能是空的或包含一些损坏的工件。
- 确保您可以访问互联网
- 从 m2 存储库中删除损坏的工件
- 重新尝试运行
mvn package
我用IDEA遇到了同样的问题,我的原因是我的Maven在离线模式下工作,所以我通过以下两步解决了它:
- go to IDEA settings and click Maven.
- uncheck the work offline checkbox.