maven下载依赖失败问题及解决
前情提要
由于特殊原因，官方maven库经常连接失败，所以很多maven都配置了阿里云的镜像。
但是阿里云的镜像里有很多依赖都没有，这时候如果你的项目需要这些依赖，就会导致编译失败。
1. 问题1
描述：
This failure was cached in the local repository and resolution is not reattempted until the update interval of aliyunmaven has elapsed or updates are forced
详细：
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Detecting the operating system and CPU architecture
[INFO] ------------------------------------------------------------------------
[INFO] os.detected.name: windows
[INFO] os.detected.arch: x86_64
[INFO] os.detected.classifier: windows-x86_64
[INFO]
[INFO] -------< org.apache.pulsar:kafka-connect-avro-converter-shaded >--------
[INFO] Building Apache Pulsar :: Kafka Connect Avro Converter shaded 2.8.0
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.415 s
[INFO] Finished at: 2021-10-21T09:22:45+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project kafka-connect-avro-converter-shaded: Could not resolve dependencies for project org.apache.pulsar:kafka-connect-avro-converter-shaded:jar:2.8.0: Failed to collect dependencies at io.confluent:kafka-connect-avro-converter:jar:5.3.2: Failed to read artifact descriptor for io.confluent:kafka-connect-avro-converter:jar:5.3.2: io.confluent:kafka-schema-registry-parent:pom:5.3.2 was not found in https://maven.aliyun.com/repository/public during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of aliyunmaven has elapsed or updates are forced -> [Help 1]
[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/DependencyResolutionException
2. 问题2
描述：
Could not find artifact io.confluent:kafka-connect-avro-converter:jar:5.3.2 in aliyunmaven
The POM for io.confluent:kafka-connect-avro-converter:jar:5.3.2 is missing, no dependency information available
详细：
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Detecting the operating system and CPU architecture
[INFO] ------------------------------------------------------------------------
[INFO] os.detected.name: windows
[INFO] os.detected.arch: x86_64
[INFO] os.detected.classifier: windows-x86_64
[INFO]
[INFO] -------< org.apache.pulsar:kafka-connect-avro-converter-shaded >--------
[INFO] Building Apache Pulsar :: Kafka Connect Avro Converter shaded 2.8.0
[INFO] --------------------------------[ jar ]---------------------------------
[WARNING] The POM for io.confluent:kafka-connect-avro-converter:jar:5.3.2 is missing, no dependency information available
Downloading from aliyunmaven: https://maven.aliyun.com/repository/public/io/confluent/kafka-connect-avro-converter/5.3.2/kafka-connect-avro-converter-5.3.2.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.427 s
[INFO] Finished at: 2021-10-21T10:39:36+08:00
[INFO] ------------------------------------------------------------------------
[WARNING] The requested profile "confluent" could not be activated because it does not exist.
[ERROR] Failed to execute goal on project kafka-connect-avro-converter-shaded: Could not resolve dependencies for project org.apache.pulsar:kafka-connect-avro-converter-shaded:jar:2.8.0: Could not find artifact io.confluent:kafka-connect-avro-converter:jar:5.3.2 in aliyunmaven (https://maven.aliyun.com/repository/public) -> [Help 1]
[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/DependencyResolutionException
3. 原因分析
虽然阿里云不存在这个jar包，但我们手动放到了maven的本地库中，重新打包后还是提示抄不到pom文件。
如下：
猜测可能是lastUpdate的问题，但是删除后仍然不能成功。
经过各种尝试，下面方法可行。
4. 解决办法
删除_remote.repositories和pom文件。
4.1 原始状态
目录文件：
错误日志：
[WARNING] The requested profile "confluent" could not be activated because it does not exist.
[ERROR] Failed to execute goal on project kafka-connect-avro-converter-shaded: Could not resolve dependencies for project org.apache.pulsar:kafka-connect-avro-converter-shaded:jar:2.8.0: io.confluent:kafka-connect-avro-converter:jar:5.3.2 was not found in https://maven.aliyun.com/repository/public during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of aliyunmaven has elapsed or updates are forced -> [Help 1]
[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/DependencyResolutionException
4.2 删除_remote.repositories
目录结构：
错误日志：
[WARNING] The requested profile "confluent" could not be activated because it does not exist.
[ERROR] Failed to execute goal on project kafka-connect-avro-converter-shaded: Could not resolve dependencies for project org.apache.pulsar:kafka-connect-avro-converter-shaded:jar:2.8.0: Failed to collect dependencies at io.confluent:kafka-connect-avro-converter:jar:5.3.2: Failed to read artifact descriptor for io.confluent:kafka-connect-avro-converter:jar:5.3.2: io.confluent:kafka-schema-registry-parent:pom:5.3.2 was not found in https://maven.aliyun.com/repository/public during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of aliyunmaven has elapsed or updates are forced -> [Help 1]
[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/DependencyResolutionException
4.3 删除pom文件
目录结构：
错误日志：
[INFO] Replacing original artifact with shaded artifact.
[INFO] Replacing F:\code\tmp\pulsar\kafka-connect-avro-converter-shaded\target\kafka-connect-avro-converter-shaded.jar with F:\code\tmp\pulsar\kafka-connect-avro-converter-shaded\target\kafka-connect-avro-converter-shaded-2.8.0-shaded.jar
[INFO] Dependency-reduced POM written at: F:\code\tmp\pulsar\kafka-connect-avro-converter-shaded\dependency-reduced-pom.xml
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 12.882 s
[INFO] Finished at: 2021-10-21T16:21:55+08:00
[INFO] ------------------------------------------------------------------------
[WARNING] The requested profile "confluent" could not be activated because it does not exist.
总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。
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