failure to transfer com.google.code.findbugs:jsr305:jar:2.0.1 from http://repo1.maven.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 com.google.code.findbugs:jsr305:jar:2.0.1 from/to central (http://repo1.maven.org/maven2): The operation was cancelled.
出现这种 com.google的，就去这个对应的地址找到这个，看看这个里面是不是下载好了，如果有名字出现last字样的，就是没有下载好，把包都删除了，再重新下载一遍。
Multiple annotations found at this line:
- Missing artifact org.codehaus.plexus:plexus-interpolation:jar:1.13
- Missing artifact classworlds:classworlds:jar:1.1
- Missing artifact org.apache.maven.plugins:maven-compiler-plugin:jar:3.1
- Missing artifact jtidy:jtidy:jar:4aug2000r7-dev
- Missing artifact org.apache.maven.doxia:doxia-sink-api:jar:1.0-alpha-7
- Missing artifact org.apache.maven:maven-plugin-parameter-documenter:jar:2.0.6
- Missing artifact org.apache.maven.shared:maven-filtering:jar:1.1
- Missing artifact org.apache.maven:maven-artifact-manager:jar:2.0.6
- Missing artifact org.apache.maven:maven-settings:jar:2.0.6
- Missing artifact org.apache.maven.shared:maven-shared-utils:jar:0.1
- Missing artifact org.apache.maven.wagon:wagon-provider-api:jar:1.0-beta-2
- Missing artifact org.apache.maven.wagon:wagon-ssh:jar:1.0-beta-2
- ArtifactDescriptorException: Failed to read artifact descriptor for org.codehaus.plexus:plexus-container-default:jar:1.5.5:
ArtifactResolutionException: Failure to transfer org.codehaus.plexus:plexus-container-default:pom:1.5.5 from http://repo1.maven.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.codehaus.plexus:plexus-container-default:pom:1.5.5 from/to central (http://repo1.maven.org/
maven2): The operation was cancelled.
- Missing artifact org.apache.maven:maven-project:jar:2.0.6
- ArtifactDescriptorException: Failed to read artifact descriptor for org.springframework.boot:spring-boot-starter-web:jar:
1.5.6.RELEASE: ArtifactResolutionException: Failure to transfer org.springframework.boot:spring-boot-starter-web:pom:1.5.6.RELEASE from
http://repo1.maven.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.boot:spring-boot-starter-web:pom:
1.5.6.RELEASE from/to central (http://repo1.maven.org/maven2): The operation was cancelled.
- Missing artifact org.apache.maven.wagon:wagon-ssh-common:jar:1.0-beta-2
- Missing artifact org.apache.maven:maven-artifact:jar:2.0.6
- Missing artifact org.codehaus.plexus:plexus-component-annotations:jar:1.5.5
- ArtifactDescriptorException: Failed to read artifact descriptor for org.codehaus.plexus:plexus-compiler-javac:jar:2.2:
ArtifactResolutionException: Failure to transfer org.codehaus.plexus:plexus-compiler-javac:pom:2.2 from http://repo1.maven.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.codehaus.plexus:plexus-compiler-javac:pom:2.2 from/to central (http://repo1.maven.org/maven2): The
operation was cancelled.
- Missing artifact org.apache.maven.wagon:wagon-ssh-external:jar:1.0-beta-2
- Missing artifact org.codehaus.plexus:plexus-utils:jar:2.0.5
- Missing artifact org.codehaus.plexus:plexus-compiler-api:jar:2.2
- Missing artifact org.apache.maven:maven-toolchain:jar:1.0
- Missing artifact org.apache.maven.wagon:wagon-http-shared:jar:1.0-beta-2
- Missing artifact org.apache.maven:maven-error-diagnostics:jar:2.0.6
- ArtifactDescriptorException: Failed to read artifact descriptor for org.codehaus.plexus:plexus-compiler-manager:jar:2.2:
ArtifactResolutionException: Failure to transfer org.codehaus.plexus:plexus-compiler-manager:pom:2.2 from http://repo1.maven.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.codehaus.plexus:plexus-compiler-manager:pom:2.2 from/to central (http://repo1.maven.org/
maven2): The operation was cancelled.
- Missing artifact org.apache.maven:maven-monitor:jar:2.0.6
- Missing artifact xml-apis:xml-apis:jar:1.4.01
- Missing artifact org.apache.maven:maven-plugin-registry:jar:2.0.6
- Missing artifact junit:junit:jar:4.12
- Missing artifact commons-cli:commons-cli:jar:1.0
- Missing artifact org.hamcrest:hamcrest-core:jar:1.3
- Missing artifact org.codehaus.plexus:plexus-container-default:jar:1.0-alpha-9-stable-1
- Missing artifact org.apache.maven:maven-core:jar:2.0.6
- Missing artifact org.apache.maven.wagon:wagon-file:jar:1.0-beta-2
- Missing artifact org.apache.maven.wagon:wagon-http-lightweight:jar:1.0-beta-2
- Missing artifact org.apache.maven:maven-plugin-api:jar:2.0.6
- Missing artifact org.sonatype.plexus:plexus-build-api:jar:0.0.4
- Missing artifact org.apache.maven:maven-repository-metadata:jar:2.0.6
- Missing artifact org.apache.maven:maven-plugin-descriptor:jar:2.0.6
- Missing artifact com.jcraft:jsch:jar:0.1.27
- Missing artifact org.apache.maven:maven-model:jar:2.0.6
- Missing artifact org.apache.maven:maven-profile:jar:2.0.6
- Missing artifact org.apache.maven.reporting:maven-reporting-api:jar:2.0.6
- Missing artifact org.codehaus.plexus:plexus-interactivity-api:jar:1.0-alpha-4
- Missing artifact com.google.code.findbugs:jsr305:jar:2.0.1
- Missing artifact org.apache.maven.shared:maven-shared-incremental:jar:1.1
- Missing artifact org.apache.maven.plugins:maven-resources-plugin:jar:2.6
在标签头出现这么一大串东西，点击项目工程，点击maven4MyEclipse，点击update maven dependencies,进去之后，把左下角的 Force update of Snapshots/Releases点击上，最后点击Ok。就好了。
我面临的Maven问题，大多数是jar包没有或者没有下载完整。只能多试几次，pom.xml文件里面出现多种问题，一点点解决。
谢谢这几位大佬的博客。 https://blog.csdn.net/weixin_39533410/article/details/80059707
https://blog.csdn.net/topdeveloperr/article/details/50628844