[英]Dependency 'com.amazonaws' not found
我正在嘗試按照本教程使用DynamoDB數據庫創建 spring 引導應用程序。 添加項目依賴項后,maven 似乎找不到com.amazonaws
依賴項,這導致亞馬遜變量出現很多錯誤,例如@EnableDynamoDBRepositories
。
這是的實際代碼:
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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>crudynamo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>crudynamo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-releasetrain</artifactId>
<version>Lovelace-SR16</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.github.derjust</groupId>
<artifactId>spring-data-dynamodb</artifactId>
<version>5.1.0</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-bom</artifactId>
<version>1.11.166</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
應用程序屬性
amazon.dynamodb.endpoint=http://localhost:8000/
amazon.aws.accesskey=key
amazon.aws.secretkey=key2
DynamoDBConfig.java
package com.example.crudynamo;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.StringUtils;
@Configuration
@EnableDynamoDBRepositories //error
(basePackages = "com.baeldung.spring.data.dynamodb.repositories")
public class DynamoDBConfig {
@Value("${amazon.dynamodb.endpoint}")
private String amazonDynamoDBEndpoint;
@Value("${amazon.aws.accesskey}")
private String amazonAWSAccessKey;
@Value("${amazon.aws.secretkey}")
private String amazonAWSSecretKey;
//error in AmazonDynamoDB
@Bean
public AmazonDynamoDB amazonDynamoDB() {
AmazonDynamoDB amazonDynamoDB
= new AmazonDynamoDBClient(amazonAWSCredentials());
if (!StringUtils.isEmpty(amazonDynamoDBEndpoint)) {
amazonDynamoDB.setEndpoint(amazonDynamoDBEndpoint);
}
return amazonDynamoDB;
}
@Bean
public AWSCredentials amazonAWSCredentials() {
return new BasicAWSCredentials(
amazonAWSAccessKey, amazonAWSSecretKey);
}
}
我已經搜索過其他類似的問題,但沒有一個能解決這個問題。
你必須包括依賴
<dependency>
<groupId>com.github.derjust</groupId>
<artifactId>spring-data-dynamodb</artifactId>
</dependency>
進入你的 pom 的依賴項,現在你只在 dependencyManagement 中擁有它,但這還不夠。 然后在您的DynamoDBConfig.java
文件中包含以下導入:
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.dynamodbv2.AmazonDynamoDB;
import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient;
import org.socialsignin.spring.data.dynamodb.repository.config.EnableDynamoDBRepositories;
將您的pom.xml文件更改為:
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>crudynamo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>crudynamo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-releasetrain</artifactId>
<version>Lovelace-SR16</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- new dependency -->
<dependency>
<groupId>com.github.derjust</groupId>
<artifactId>spring-data-dynamodb</artifactId>
<version>5.1.0</version>
</dependency>
<!-- this dependency is now inside 'dependencies' tag -->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>1.11.774</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
您忘記添加com.github.derjust
依賴項。 出於某種原因,當com.amazonaws
位於dependencyManagement
標記內時,我收到了此錯誤。 將他移動到dependencies
項標簽就可以了。
在此之后,您將能夠在DynamoDBConfig.java文件中導入亞馬遜變量,每個變量使用快捷鍵Alt + Enter 。
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