Dependency 'com.amazonaws' not found

Question

I'm trying to create a spring boot aplication with DynamoDB database, following this tutorial . After adding the project dependencies, it seems that maven can't find the com.amazonaws dependency, and that is causing a lot of errors in amazon variables, like @EnableDynamoDBRepositories for example.

This is the actual code of:

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>

aplication.properties

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);
     }
 }

I've searched in other similar questions like that, but none of them solved this problem.

Answer 1

you have to include the dependency

   <dependency>
      <groupId>com.github.derjust</groupId>
      <artifactId>spring-data-dynamodb</artifactId>
   </dependency>

into dependencies of your pom, now you have it only in dependencyManagement, but that's not enough. And then include following imports in your DynamoDBConfig.java file:

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;

Answer 2

Change your pom.xml file to this:

<?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>

You were forgetting to add the com.github.derjust dependency. For some reason too, I was getting this error when com.amazonaws was inside the dependencyManagement tag. Moving him to the dependencies tag did the work.

After this, you'll be able to import amazon variables in your DynamoDBConfig.java file with the shortcut Alt + Enter for every variable.