Maven的配置问题MyEclipse8.5

ArtifactTransferException: Failure to transfer org.codehaus.jackson:jackson-core-asl:jar:1.9.13 from
http://127.0.0.1:8081/nexus/content/groups/public/ was cached in the local repository, resolution will
not be reattempted until the update interval of nexus has elapsed or updates are forced. Original
error: Could not transfer artifact org.codehaus.jackson:jackson-core-asl:jar:1.9.13 from/to nexus
(http://127.0.0.1:8081/nexus/content/groups/public/): java.util.concurrent.TimeoutException: No
response received after 60000

pom.xml文件总是报这个错
之前用的是maven默认的仓库,报的是maven的那个链接错误,后来用nexus建立了一个私服,然后还是报这个错,到底是哪里的配置出问题了,好纠结
私服的配置和更新都是按照百度搜到的教程来的,应该不会有什么问题吧?
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