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Java Maven构建失败

java eclipse maven

Java Maven构建失败,java,eclipse,maven,Java,Eclipse,Maven,我试图导入一个当前的maven项目，但是构建失败，抛出了这个错误 Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.5: Could not transfer

我试图导入一个当前的maven项目，但是构建失败，抛出了这个错误

Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its dependencies could not be resolved: 
Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.5: 
Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.5 from/to central (http://repo.maven.apache.org/maven2): 
Connect to repo.maven.apache.org:80 [repo.maven.apache.org/23.235.46.209] failed: Connection timed out: connect -> [Help 1]
检查您的网络是否存在代理以及settings.xml（Maven）的配置是否正确。

检查您的Internet连接或Maven安装Internet连接和代理是否正常。现在它显示了一个错误，即它找不到tools.jar，即使我从jre更改了到JDk的路径