我如何解决pom.xml中缺失的人工制品问题

Question

我正在Java中启动简单的AWS DynamoDB测试。当然有这样的进口

import com.amazonaws.services.dynamodbv2.AmazonDynamoDB;

因此，为了解决这个问题，我声明我的项目是Maven的性质，并添加了一种在pom.xml

中看起来像这样的依赖性

`<project xmlns="http://maven.apache.org/POM/4.0.0" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>DynamoDBOperations</groupId>
<artifactId>DynamoDBOperations</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
  <plugin>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.3</version>
    <configuration>
      <source>1.8</source>
      <target>1.8</target>
    </configuration>
  </plugin>
</plugins>
</build>
<dependencies>
<dependency>
    <groupId>software.amazon.awssdk</groupId>
    <artifactId>bom</artifactId>
    <version>2.0.0</version>
</dependency>
</dependencies>
</project>

我有一个运行的本地伪影实例，.m2目录设置.xml我看到了端点http：//localhost：8081/artifactory/lib-（释放和快照）在不同的条目中。

pom.xml给出错误

Missing artifact software.amazon.awssdk:bom:jar: 2.0.0

当我尝试执行runas -maven安装时，我会看到以下错误。

Failed to execute goal on project DynamoDBOperations: Could not resolve 
dependencies for project DynamoDBOperations:DynamoDBOperations:jar:0.0.1- 
SNAPSHOT: Failure to find software.amazon.awssdk:bom:jar:2.0.0 in 
http://localhost:8081/artifactory/libs-release was cached in the local 
repository, resolution will not be reattempted until the update interval of 
central has elapsed or updates are forced -> [Help 1] 

我知道它试图告诉我一些东西，但我不明白。

.m2下的存储库文件夹，它具有像我期望的软件/amazon/awssdk/bom/2.0.0及其下方的文件夹结构，bom-2.0.0.0.0.jar.jar.lastupped

Java程序尚未启动

import com.amazonaws.services.dynamodbv2.AmazonDynamoDB;
import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder;
import com.amazonaws.services.dynamodbv2.model.AttributeDefinition;
import com.amazonaws.services.dynamodbv2.model.CreateTableRequest;
import com.amazonaws.services.dynamodbv2.model.CreateTableResult;
import com.amazonaws.services.dynamodbv2.model.KeySchemaElement;
import com.amazonaws.services.dynamodbv2.model.KeyType;
import com.amazonaws.services.dynamodbv2.model.ProvisionedThroughput;
import com.amazonaws.services.dynamodbv2.model.ScalarAttributeType;
public class DynamoDBOperations {

}

Answer 1

它告诉您，不存在 jar bom-2.0.0.jar for Software.amazon.awssdk。

看文档。

您必须在dependencyManagement中定义bom。也请查看此答案

当您定义依赖关系并执行maven命令时，Maven即使无法下载依赖项，也会自动创建文件夹结构。