1. 确认Docker镜像被正确地部署到Amazon ECR
2. 在AWS CDK中正确设置Lambda函数的运行环境和执行角色
3. 确认Lambda函数可以从Amazon ECR获取Docker镜像
4. 在Dockerfile中正确设置Java运行时和依赖项

以下是Java AWS Lambda函数的示例CDK代码，用于从Docker镜像中运行：

import software.amazon.awscdk.core.*;
import software.amazon.awscdk.services.ecr.assets.*;
import software.amazon.awscdk.services.ecs.*;
import software.amazon.awscdk.services.ecs.patterns.*;
import software.amazon.awscdk.services.lambda.*;

public class DockerizedJavaLambdaStack extends Stack {
    public DockerizedJavaLambdaStack(final Construct scope, final String id) {
        this(scope, id, null);
    }

    public DockerizedJavaLambdaStack(final Construct scope, final String id, final StackProps props) {
        super(scope, id, props);

        // 创建一个Amazon ECR存储库，并将Docker镜像上传到ECR。
        Repository ecrRepository = Repository.Builder.create(this, "MyRepository")
                .repositoryName("my-repo")
                .build();
        AssetUtil.publishAsset(this, new DockerImageAsset(this, "MyImage", DockerImageAssetProps.builder()
                .directory("../my-java-function")
                .build()), ecrRepository);

        // 创建Amazon ECS任务定义，该任务定义使用Docker镜像。
        TaskDefinition taskDefinition = TaskDefinition.Builder.create(this, "MyTaskDefinition")
                .compatibility(Compatibility.EC2_AND_FARGATE)
                .cpu("256")
                .memoryMiB("512")
                .addContainer("MyContainer", ContainerDefinitionOptions.builder()
                        .image(ContainerImage.fromEcrRepository(ecrRepository, "latest"))
                        .build())
                .build();

        // 创建Amazon ECS服务，该服务使用Docker任务定义。
        ApplicationLoadBalancedFargateService service = ApplicationLoadBalancedFargateService.Builder.create(this, "MyService")
                .serviceName("my-service")
                .cluster(Cluster.Builder.create(this, "MyCluster").build())
                .taskDefinition(taskDefinition)
                .desiredCount(1)
                .publicLoadBalancer(true)
                .build();

        // 创建Lambda函数，该函数从ECS服务执行请求。
        DockerImageFunction function = DockerImageFunction.Builder.create(this, "MyFunction")
                .code(DockerImageCode.fromEcr(ecrRepository, "latest"))
                .memorySize(256)
                .build();

        // 添加Lambda函数