购买并连接GeminiDB兼容DynamoDB接口实例

• 如果安全组规则允许弹性云服务器云主机访问，即可连接实例。
• 如果安全组规则不允许弹性云服务器云主机访问，需要在实例安全组添加一条“入”的访问规则。

图7 网络配置

图8 选择弹性公网IP

Java样例如下：

package com.huawei.dbs.test;  

import com.huawei.dbs.RequestHandler;  

import com.amazonaws.SDKGlobalConfiguration;  
import com.amazonaws.auth.AWSCredentialsProvider;  
import com.amazonaws.auth.AWSStaticCredentialsProvider;  
import com.amazonaws.auth.BasicAWSCredentials;  
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.TableCollection;  

import java.net.URI;  
  

public class V1Demo {  
    public static AWSCredentialsProvider myCredentials = new AWSStaticCredentialsProvider(  
        new BasicAWSCredentials("your_ak", "your_sk"));  
    public static String ip = "***.***.***.***";  
    public static void main(String[] args) {  
        disableCertificateChecks();  
        AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard()  
            .withRegion("region-a")  
            .withRequestHandlers(new RequestHandler(URI.create("http://" + ip + "8000")))  
            .withCredentials(myCredentials)  
            .build();  
        DynamoDB dynamoDB = new DynamoDB(client);  
        TableCollection res = dynamoDB.listTables();  
        System.out.println(res);  
    }  
  
}