使用 aws-java-sdk-s3 时出错
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【中文标题】使用 aws-java-sdk-s3 时出错【英文标题】：Error in using aws-java-sdk-s3 【发布时间】：2018-08-11 14:41:09 【问题描述】：我正在尝试通过非常基本的测试来 s3 sdk 并得到以下错误。
原因：java.lang.NoSuchFieldError: SIGNING_REGION 在 com.amazonaws.services.s3.AmazonS3Client.createRequest(AmazonS3Client.java:4227) 在 com.amazonaws.services.s3.AmazonS3Client.createRequest(AmazonS3Client.java:4203) 在 com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:929) 在 com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:936)
aws-java-sdk-s3
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-s3</artifactId>
<version>1.11.288</version>
</dependency
ClientConfiguration cf = new ClientConfiguration();
AWSCredentials credentials = new BasicAWSCredentials("<id>","<secret>");
AmazonS3 amazonS3Client=
AmazonS3ClientBuilder.standard().withCredentials(new AWSStaticCredentialsProvider(credentials)).withRegion(Regions.US_EAST_1).build();
List<Bucket> buckets = amazonS3Client.listBuckets();
Maven 依赖树：
O] --- maven-dependency-plugin:2.10:tree (default-cli) @ AwsSdkDemo ---
O] com.example:AwsSdkDemo:jar:0.0.1-SNAPSHOT
O] +- org.springframework.boot:spring-boot-starter-data-jpa:jar:1.5.10.RELEASE:compile
O] | +- org.springframework.boot:spring-boot-starter:jar:1.5.10.RELEASE:compile
O] | | +- org.springframework.boot:spring-boot:jar:1.5.10.RELEASE:compile
O] | | +- org.springframework.boot:spring-boot-autoconfigure:jar:1.5.10.RELEASE:compile
O] | | +- org.springframework.boot:spring-boot-starter-logging:jar:1.5.10.RELEASE:compile
O] | | | +- ch.qos.logback:logback-classic:jar:1.1.11:compile
O] | | | | \- ch.qos.logback:logback-core:jar:1.1.11:compile
O] | | | +- org.slf4j:jul-to-slf4j:jar:1.7.25:compile
O] | | | \- org.slf4j:log4j-over-slf4j:jar:1.7.25:compile
O] | | \- org.yaml:snakeyaml:jar:1.17:runtime
O] | +- org.springframework.boot:spring-boot-starter-aop:jar:1.5.10.RELEASE:compile
O] | | +- org.springframework:spring-aop:jar:4.3.14.RELEASE:compile
O] | | \- org.aspectj:aspectjweaver:jar:1.8.13:compile
O] | +- org.springframework.boot:spring-boot-starter-jdbc:jar:1.5.10.RELEASE:compile
O] | | +- org.apache.tomcat:tomcat-jdbc:jar:8.5.27:compile
O] | | | \- org.apache.tomcat:tomcat-juli:jar:8.5.27:compile
O] | | \- org.springframework:spring-jdbc:jar:4.3.14.RELEASE:compile
O] | +- org.hibernate:hibernate-core:jar:5.0.12.Final:compile
O] | | +- org.jboss.logging:jboss-logging:jar:3.3.1.Final:compile
O] | | +- org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile
O] | | +- org.javassist:javassist:jar:3.21.0-GA:compile
O] | | +- antlr:antlr:jar:2.7.7:compile
O] | | +- org.jboss:jandex:jar:2.0.0.Final:compile
O] | | +- dom4j:dom4j:jar:1.6.1:compile
O] | | \- org.hibernate.common:hibernate-commons-annotations:jar:5.0.1.Final:compile
O] | +- org.hibernate:hibernate-entitymanager:jar:5.0.12.Final:compile
O] | +- javax.transaction:javax.transaction-api:jar:1.2:compile
O] | +- org.springframework.data:spring-data-jpa:jar:1.11.10.RELEASE:compile
O] | | +- org.springframework.data:spring-data-commons:jar:1.13.10.RELEASE:compile
O] | | +- org.springframework:spring-orm:jar:4.3.14.RELEASE:compile
O] | | +- org.springframework:spring-context:jar:4.3.14.RELEASE:compile
O] | | +- org.springframework:spring-tx:jar:4.3.14.RELEASE:compile
O] | | +- org.springframework:spring-beans:jar:4.3.14.RELEASE:compile
O] | | +- org.slf4j:slf4j-api:jar:1.7.25:compile
O] | | \- org.slf4j:jcl-over-slf4j:jar:1.7.25:compile
O] | \- org.springframework:spring-aspects:jar:4.3.14.RELEASE:compile
O] +- org.springframework.boot:spring-boot-starter-web:jar:1.5.10.RELEASE:compile
O] | +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.5.10.RELEASE:compile
O] | | +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.5.27:compile
O] | | | \- org.apache.tomcat:tomcat-annotations-api:jar:8.5.27:compile
O] | | +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.5.27:compile
O] | | \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.5.27:compile
O] | +- org.hibernate:hibernate-validator:jar:5.3.6.Final:compile
O] | | +- javax.validation:validation-api:jar:1.1.0.Final:compile
O] | | \- com.fasterxml:classmate:jar:1.3.4:compile
O] | +- com.fasterxml.jackson.core:jackson-databind:jar:2.8.10:compile
O] | | +- com.fasterxml.jackson.core:jackson-annotations:jar:2.8.0:compile
O] | | \- com.fasterxml.jackson.core:jackson-core:jar:2.8.10:compile
O] | +- org.springframework:spring-web:jar:4.3.14.RELEASE:compile
O] | \- org.springframework:spring-webmvc:jar:4.3.14.RELEASE:compile
O] | \- org.springframework:spring-expression:jar:4.3.14.RELEASE:compile
O] +- com.amazonaws:aws-java-sdk-s3:jar:1.11.288:compile
O] | +- com.amazonaws:aws-java-sdk-kms:jar:1.11.125:compile
O] | +- com.amazonaws:aws-java-sdk-core:jar:1.11.125:compile
O] | | +- commons-logging:commons-logging:jar:1.1.3:compile
O] | | +- org.apache.httpcomponents:httpclient:jar:4.5.5:compile
O] | | | +- org.apache.httpcomponents:httpcore:jar:4.4.9:compile
O] | | | \- commons-codec:commons-codec:jar:1.10:compile
O] | | +- software.amazon.ion:ion-java:jar:1.0.2:compile
O] | | +- com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:jar:2.8.10:compile
O] | | \- joda-time:joda-time:jar:2.9.9:compile
O] | \- com.amazonaws:jmespath-java:jar:1.11.125:compile
O] +- com.h2database:h2:jar:1.4.196:runtime
O] +- org.projectlombok:lombok:jar:1.16.20:compile
O] \- org.springframework.boot:spring-boot-starter-test:jar:1.5.10.RELEASE:test
O] +- org.springframework.boot:spring-boot-test:jar:1.5.10.RELEASE:test
O] +- org.springframework.boot:spring-boot-test-autoconfigure:jar:1.5.10.RELEASE:test
O] +- com.jayway.jsonpath:json-path:jar:2.2.0:test
O] | \- net.minidev:json-smart:jar:2.2.1:test
O] | \- net.minidev:accessors-smart:jar:1.1:test
O] | \- org.ow2.asm:asm:jar:5.0.3:test
O] +- junit:junit:jar:4.12:test
O] +- org.assertj:assertj-core:jar:2.6.0:test
O] +- org.mockito:mockito-core:jar:1.10.19:test
O] | \- org.objenesis:objenesis:jar:2.1:test
O] +- org.hamcrest:hamcrest-core:jar:1.3:test
O] +- org.hamcrest:hamcrest-library:jar:1.3:test
O] +- org.skyscreamer:jsonassert:jar:1.4.0:test
O] | \- com.vaadin.external.google:android-json:jar:0.0.20131108.vaadin1:test
O] +- org.springframework:spring-core:jar:4.3.14.RELEASE:compile
O] \- org.springframework:spring-test:jar:4.3.14.RELEASE:test
O] ------------------------------------------------------------------------
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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>com.example</groupId>
<artifactId>AwsSdkDemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>AwsSdkDemo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Edgware.SR2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-s3</artifactId>
<version>1.11.288</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-core</artifactId>
<version>1.11.288</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>$spring-cloud.version</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
【问题讨论】：
我猜你有一个旧版本的aws-java-sdk-core JAR。运行 mvn dependency:tree 并验证所有 AWS JAR 具有相同的版本。如果您需要更多解释，请使用输出更新您的问题。
谢谢，我更新了 mvn 依赖树。它使用 com.amazonaws:aws-java-sdk-core:jar:1.11.125
这实际上很奇怪：aws-sdk-java-s3 似乎从早期版本的 SDK 中提取依赖项。我快速浏览了POM，这不应该发生：它应该引用具有相同版本的其他模块。
这引出了两个问题：首先，您的项目 POM 中是否有一个 <dependencyManagement> 来设置 SDK 版本？还是你定义属性awsjavasdk.version？
是的。有一连串的依赖管理声明以 here 结尾，这将 AWS 版本限制为 1.11.125。我建议不要与此作斗争，而是删除您在 POM 中引用的 AWS JAR 的 <version> 规范。
【参考方案1】：
谢谢大家，问题在于 spring 提取的 aws-core 依赖项版本不一致。手动提供核心版本（1.11.288）后，它解决了问题。如前所述，如果我们在 spring boot 中不显式地将 version 放入 pom 中，它也可以解决这个问题。
【讨论】：
【参考方案2】：我遇到了类似的问题com.amazonaws:aws-java-sdk-secretsmanager:jar:1.11.430 正在引入com.amazonaws:aws-java-sdk-core:jar:1.11.125 来解决这个问题，具体方法是在 pom 中包含 core-sdk jar：
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-core</artifactId>
<version>1.11.430</version>
</dependency>
我还针对 aws-java-sdk 提出了一个问题：https://github.com/aws/aws-sdk-java/issues/1787
【讨论】：
为我工作，但我用的是最新的【参考方案3】：虽然这是一个旧帖子，但我正在发布一个解决方案。希望对您有所帮助。
按照以下步骤操作（如果问题得到解决，您可以随时跳过剩余步骤）：
确保
sdk-core版本和客户端版本相同。如果不是，则sdk-core的版本必须高于客户端库 为了使sdk-core和客户端添加相同的版本 ->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-bom</artifactId>
<version>1.11.308</version> <-- Add recent version
<type>pom</type>
<scope>import</scope> <-- don't remove
</dependency>
</dependencies>
</dependencyManagement>
运行
mvn dependency:tree并检查不匹配的位置。添加此行以捕获引用
System.out.println(HandlerContextKey.class.getProtectionDomain().getCodeSource().getLocation().getPath());最后清除你的依赖缓存。如果您使用的是任何 IDE，那么也使该缓存无效
添加第 4 步中提到的代码后对我有用。 sdk-core 依赖被其他依赖添加。
【讨论】：
【参考方案4】：最好不要手动提供 'aws-java-sdk-core' 版本，让 spring 它为您和您的应用程序使用 Spring boot2 自行决定。
【讨论】：
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