如何使用 aws java SDK 从子网 ID 获取 VPC id？

Question

有一个现有的子网，比如子网 11223344。在我的代码中，我想知道它所属的 VPC。

我指的是java SDKhttp://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/ec2/model/Subnet.html

// I am not sure if this actually refres to a subnet that I want
Subnet subnet = new Subnet().withSubnetId("subnet-11223344");
String vpcId = subnet.getVpcId();
System.out.println("VPC id"+vpcId); 

这将返回 null。

Answer 1

这是ProgramCreek提供的通用解决方案示例：

public List<Subnet> getSubnets(List<String> subnetIds, AmazonEC2 ec2Client) { 
    DescribeSubnetsRequest request = new DescribeSubnetsRequest(); 

    if (subnetIds != null && !subnetIds.isEmpty()) { 
        request = request.withSubnetIds(subnetIds); 
    } 
    DescribeSubnetsResult result = ec2Client.describeSubnets(request); 

    return result.getSubnets(); 
}