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我正在尝试解决我的 Maven 项目中的库之间的冲突。我将以下插件添加到插件部分：

<plugins>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-enforcer-plugin</artifactId>
        <version>1.4.1</version>
        <configuration>
            <rules><dependencyConvergence/></rules>
        </configuration>
    </plugin>
</plugins>

当我运行时mvn enforcer:enforce，我得到不同的依赖错误，比如这个：

Dependency convergence error for org.codehaus.jackson:jackson-mapper-asl:1.9.13 paths to dependency are:
+-org.test:service:1.0-SNAPSHOT
  +-org.apache.spark:spark-sql_2.11:2.2.0
    +-org.apache.spark:spark-core_2.11:2.2.0
      +-org.apache.avro:avro:1.7.7
        +-org.codehaus.jackson:jackson-mapper-asl:1.9.13
and
+-org.test:service:1.0-SNAPSHOT
  +-org.apache.spark:spark-sql_2.11:2.2.0
    +-org.apache.spark:spark-core_2.11:2.2.0
      +-org.apache.avro:avro-mapred:1.7.7
        +-org.apache.avro:avro-ipc:1.7.7
          +-org.codehaus.jackson:jackson-mapper-asl:1.9.13
and
+-org.test:service:1.0-SNAPSHOT
  +-org.apache.spark:spark-sql_2.11:2.2.0
    +-org.apache.spark:spark-core_2.11:2.2.0
      +-org.apache.avro:avro-mapred:1.7.7
        +-org.apache.avro:avro-ipc:1.7.7
          +-org.codehaus.jackson:jackson-mapper-asl:1.9.13
and
+-org.test:service:1.0-SNAPSHOT
  +-org.apache.spark:spark-sql_2.11:2.2.0
    +-org.apache.spark:spark-core_2.11:2.2.0
      +-org.apache.avro:avro-mapred:1.7.7
        +-org.codehaus.jackson:jackson-mapper-asl:1.9.13
and
+-org.test:service:1.0-SNAPSHOT
  +-org.apache.spark:spark-sql_2.11:2.2.0
    +-org.apache.parquet:parquet-hadoop:1.8.2
      +-org.codehaus.jackson:jackson-mapper-asl:1.9.11

那么，在打包 JAR 时如何解决这些错误呢？在 SBT 中它更容易，但我被 Maven 卡住了。

4

1 回答 1

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这意味着

org.codehaus.jackson:jackson-mapper-asl

在您的dependency:tree. 您需要选择您想要的版本。您通常使用<dependencyManagement>like来做到这一点

<dependencyManagement>
   ...
   <dependency>
      <groupId>org.codehaus.jackson</groupId>
      <artifactId>jackson-mapper-asl</artifactId>
      <version>1.9.13</version>
   </dependency>
   ...
</dependencyManagement>
于 2018-03-23T12:05:13.160 回答