Cannot import dynamodbv2 libraries in java

Question

I'm trying to set up a simple Java application that queries from a Dynamo DB table but I'm getting import errors relating to dynamodbv2.

I've posted my pom.xml and Test.java, as well as the AWS docs that I've used below.

Resources Used

Maven Project Setup: https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/setup-project-maven.html

Query Example: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/GettingStarted.Java.04.html

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.telus</groupId>
  <artifactId>aws-standalone</artifactId>
  <version>1.0-SNAPSHOT</version>
  <name>aws-standalone</name>


  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <java.version>1.8</java.version>
    <aws.java.sdk.version>2.16.1</aws.java.sdk.version>
  </properties>

  <dependencyManagement>
    <dependencies>

      <dependency>
        <groupId>software.amazon.awssdk</groupId>
        <artifactId>bom</artifactId>
        <version>2.17.128</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>

    </dependencies>
  </dependencyManagement>


  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>software.amazon.awssdk</groupId>
      <artifactId>dynamodb</artifactId>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
    </plugins>
  </build>

</project>

Test.java

package com.example;

import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.dynamodb.DynamoDbClient;

import com.amazonaws.services.dynamodbv2.AmazonDynamoDB;
import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder;
import com.amazonaws.services.dynamodbv2.document.DynamoDB;
import com.amazonaws.services.dynamodbv2.document.Item;
import com.amazonaws.services.dynamodbv2.document.ItemCollection;
import com.amazonaws.services.dynamodbv2.document.Page;
import com.amazonaws.services.dynamodbv2.document.QueryOutcome;
import com.amazonaws.services.dynamodbv2.document.Table;
import com.amazonaws.services.dynamodbv2.document.spec.QuerySpec;
import com.amazonaws.services.dynamodbv2.document.utils.ValueMap;


public class Test
{
    public static void main( String[] args )
    {

        String awsKeyId = "key";
        String awsKeySecret = "secret";

        DynamoDbClient client = DynamoDbClient.builder()
                .region(Region.CA_CENTRAL_1)
                .credentialsProvider(StaticCredentialsProvider.create(
                        AwsBasicCredentials.create(awsKeyId, awsKeySecret)))
                .build();


        DynamoDB dynamoDB = new DynamoDB(client);
        Table table = dynamoDB.getTable("Movies");

        System.out.println(client);
    }
}

score 2 · Answer 1 · answered Jun 22 '22 at 14:05

You are missing the dependency

        <groupId>com.amazonaws</groupId>
        <artifactId>aws-java-sdk-dynamodb</artifactId>
        <version>1.12.245</version>

And if the object becomes red color even you import it, you need to delete it and type it back. And it is work for me.

Cannot import dynamodbv2 libraries in java

Resources Used

pom.xml

Test.java

1 Answers1