java - aws s3 withRegion : Cannot resolve method 'withRegion(com.amazonaws.regions.Regions)'

Question

尝试使用 aws s3 java api 创建 AmazonS3ClientBuilder 对象并收到错误

按照这个例子:

https://docs.aws.amazon.com/code-samples/latest/catalog/java-s3-src-main-java-aws-example-s3-PutObject.java.html

使用AWS S3 SDK(Java):

<dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk-s3</artifactId>
    <version>1.11.651</version>
</dependency>

代码:

AmazonS3 s3 = AmazonS3ClientBuilder.standard().withRegion(Regions.DEFAULT_REGION).build();

错误:

Cannot resolve method 'withRegion(com.amazonaws.regions.Regions)'

这是一个错误还是我在这里做错了什么？

我正在使用 Java 8、IntelliJ IDE 和 Maven 作为构建工具...

更新(19 年 10 月 15 日 @ 澳大利亚东部标准时间晚上 8:48):

我的pom.xml:

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>helloworld</groupId>
    <artifactId>HelloWorld</artifactId>
    <version>1.0</version>
    <packaging>jar</packaging>
    <name>A sample Hello World created for SAM CLI.</name>
    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-lambda-java-core</artifactId>
            <version>1.2.0</version>
        </dependency>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.12</version>
          <scope>test</scope>
        </dependency>
        <dependency>
            <!-- jsoup HTML parser library @ https://jsoup.org/ -->
            <groupId>org.jsoup</groupId>
            <artifactId>jsoup</artifactId>
            <version>1.12.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.amazonaws/aws-lambda-java-events -->
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-lambda-java-events</artifactId>
            <version>2.2.7</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk -->
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk</artifactId>
            <version>1.11.651</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/software.amazon.awssdk/sdk-core -->
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-core</artifactId>
            <version>1.11.0</version>
        </dependency>
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-dynamodb</artifactId>
            <version>1.11.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.6</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk-s3 -->
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-s3</artifactId>
            <version>1.11.651</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.freemarker/freemarker -->
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.20</version>
        </dependency>



    </dependencies>

    <build>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-shade-plugin</artifactId>
          <version>3.1.1</version>
          <configuration>
          </configuration>
          <executions>
            <execution>
              <phase>package</phase>
              <goals>
                <goal>shade</goal>
              </goals>
            </execution>
          </executions>
        </plugin>
      </plugins>
    </build>
</project>

Answer 1

我猜测问题出在您在 pom 文件中添加的 aws-java-sdk-dynamodb 依赖项。这对 aws-java-sdk-s3 有内部依赖。

由于依赖版本为1.11.0，因此该版本的aws-java-sdk-s3可能没有withRegion方法在里面(虽然没有检查)

尝试将版本升级到最新，我想你的问题应该可以解决。

如果您仍然看到相同的问题，请尝试通过发出命令mvn dependency:tree来发布依赖关系树结果