在AWS CDK代码中，确保在创建CloudFront分发时正确设置A记录别名和目标地址。以下是一个示例：

import * as cdk from 'aws-cdk-lib';
import * as routes from 'aws-cdk-lib/aws-route53-targets';
import * as cf from 'aws-cdk-lib/aws-cloudfront';

const myApp = new cdk.App();
const myStack = new cdk.Stack(myApp, 'my-stack');

const myDistribution = new cf.CloudFrontWebDistribution(myStack, 'my-distribution', {
  originConfigs: [
    {
      s3OriginSource: {
        s3BucketSource: myBucket,
        originAccessIdentity: myOai,
      },
      behaviors: [
        {
          isDefaultBehavior: true,
          pathPattern: '*',
          allowedMethods: cf.CloudFrontAllowedMethods.ALL,
          cachedMethods: cf.CloudFrontAllowedCachedMethods.GET_HEAD,
          compress: true,
        },
      ],
    },
  ],
});

// create a new A record in Route53
new route53.ARecord(myStack, 'my-distribution-A-record', {
  zone: myHostedZone,
  recordName: 'example.com',
  target: routes.CloudFrontTarget.fromDistribution(myDistribution),
});