问题

目前我有一个Maven项目，在pom.xml文件中添加了以下依赖：https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk，但似乎我看到了以下异常：`CreateProcess error=206，文件名或扩展名太长`

当执行一个包含`public static void main`的类时：

```java
public class Connection_Test {
    public static void main(String[] args) {
        System.out.println("Hello world");
    }
}

我已经将.m2仓库移动到了.c盘下（我使用的是Windows 10），方法如下：

> 1. 将.m2仓库移动到c盘下
> 2. 通过IntelliJ创建一个settings.xml文件，其中包含以下内容：

<settings>
  <localRepository>c:/.m2/repository</localRepository>
</settings>

尽管进行了上述设置/更改，我仍然遇到相同的问题，不确定为什么在添加aws-java-sdk依赖后会遇到这个问题，有任何想法吗？

<details>
<summary>英文:</summary>

Currently I have a Maven Project, after adding the following dependency: https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk to the pom.xml file, I seem to be seeing the following exception: `CreateProcess error=206, The filename or extension is too long`

When executing a class which contains `public static void main`:

    public class Connection_Test {
        public static void main(String[] args) {
            System.out.println(&quot;Hello world&quot;);
        }
    }

I have currently moved the .m2 repo (I&#39;m using windows 10) via the following:

&gt; 1. Move .m2 repository to c:\
&gt; 2. Create a settings.xml via inteliJ containing the following:

    &lt;settings&gt;
      &lt;localRepository&gt;c:/.m2/repository&lt;/localRepository&gt;
    &lt;/settings&gt;

Even with the above settings / changes, I&#39;m still experiencing the same issue, not sure why after adding the aws-java-sdk dependency I seem to run into the issue, any ideas? 

</details>


# 答案1
**得分**: 3

问题似乎出在通过pom.xml文件导入aws java库的方式上。我看过一些文档和项目，其中有类似这样的操作：

```xml
<dependencies>
  <dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk</artifactId>
    <version>1.12.1</version>
  </dependency>
</dependencies>

然而，现在似乎有太多的子项目在aws-java-sdk下，列出它们所有会超出Windows 10上最大长度类路径的限制。

与其导入整个AWS SDK，最好只导入你需要的部分。这里有一些关于如何做到这一点的好文档1。

要逐个导入SDK组件，首先需要在pom.xml文件的DependencyManagement部分启用aws-java-sdk-bom（材料清单）。像这样：

<dependencyManagement>   
  <dependencies>
     <dependency>
       <groupId>com.amazonaws</groupId>
       <artifactId>aws-java-sdk-bom</artifactId>
       <version>1.12.1</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>   
  </dependencies> 
</dependencyManagement>

然后，要引入S3，你必须将aws-java-sdk-s3列为它自己的依赖项。

<dependency>
  <groupId>com.amazonaws</groupId>
  <artifactId>aws-java-sdk-s3</artifactId>
</dependency>

<dependencies>
  <dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk</artifactId>
    <version>1.12.1</version>
  </dependency>
</dependencies>

<dependencyManagement>   
  <dependencies>
     <dependency>
       <groupId>com.amazonaws</groupId>
       <artifactId>aws-java-sdk-bom</artifactId>
       <version>1.12.1</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>   
  </dependencies> 
</dependencyManagement>

  <dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk-s3</artifactId>
  </dependency>