google-cloud-platform - UnknownHostException: eu-automl.googleapis.com 从 java 应用程序调用 automl API 时

问题描述

我试图通过 java 应用程序调用 API @ POST eu-automl.googleapis.com:443/v1beta1/projects/{project_id}/locations/eu/models/{model_id}:predict 并得到以下错误 -

**Caused by: java.net.UnknownHostException: eu-automl.googleapis.com
    at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
    at java.net.InetAddress$2.lookupAllHostAddr(Unknown Source)
    at java.net.InetAddress.getAddressesFromNameService(Unknown Source)
    at java.net.InetAddress.getAllByName0(Unknown Source)
    at java.net.InetAddress.getAllByName(Unknown Source)
    at java.net.InetAddress.getAllByName(Unknown Source)
    at io.grpc.internal.DnsNameResolver$JdkAddressResolver.resolveAddress(DnsNameResolver.java:646)
    at io.grpc.internal.DnsNameResolver.resolveAll(DnsNameResolver.java:404)**

当我通过邮递员运行这个 api 时，它会毫无错误地通过。调用此 API 的代码：

        **CredentialsProvider credentialsProvider =
                   FixedCredentialsProvider.create(
                     ServiceAccountCredentials.fromStream(
                             new FileInputStream(key)));
        PredictionServiceSettings settings =
                   PredictionServiceSettings.newBuilder()
                  .setCredentialsProvider(credentialsProvider)
                  .setEndpoint("eu-automl.googleapis.com:443")
                  .build();
        try (PredictionServiceClient client = PredictionServiceClient.create(settings)) {
            // Get the full path of the model.
            ModelName name = ModelName.of(projectId, "eu", modelId);
            URL url = TablesPredict.class.getResource("predict.json");
            InputStreamReader reader = new InputStreamReader(new FileInputStream(url.getPath()), "ASCII");
            ExamplePayload.Builder builder = ExamplePayload.newBuilder();
            JsonFormat.parser().merge(reader, builder);
            ExamplePayload payload = builder.build();
            PredictRequest request =
                    PredictRequest.newBuilder()
                    .setName(name.toString())
                    .setPayload(payload)                    
                    .putParams("feature_importance", "true")
                    .build();
            PredictResponse response = client. predict(request);
}**

知道我在这里缺少什么吗？

标签： google-cloud-platformgoogle-cloud-endpointsgoogle-cloud-automl

google-cloud-platform - UnknownHostException: eu-automl.googleapis.com 从 java 应用程序调用 automl API 时

问题描述

解决方案

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