搭DetectDominantLanguage配使用 AWS SDK或 CLI

下列程式碼範例會示範如何使用DetectDominantLanguage。

動作範例是大型程式的程式碼摘錄，必須在內容中執行。您可以在下列程式碼範例的內容中看到此動作：

• 偵測文件元素

.NET

AWS SDK for .NET

注意

還有更多關於 GitHub。尋找完整範例，並瞭解如何在 AWS 代碼示例存儲庫。

    using System;
    using System.Threading.Tasks;
    using Amazon.Comprehend;
    using Amazon.Comprehend.Model;

    /// <summary>
    /// This example calls the Amazon Comprehend service to determine the
    /// dominant language.
    /// </summary>
    public static class DetectDominantLanguage
    {
        /// <summary>
        /// Calls Amazon Comprehend to determine the dominant language used in
        /// the sample text.
        /// </summary>
        public static async Task Main()
        {
            string text = "It is raining today in Seattle.";

            var comprehendClient = new AmazonComprehendClient(Amazon.RegionEndpoint.USWest2);

            Console.WriteLine("Calling DetectDominantLanguage\n");
            var detectDominantLanguageRequest = new DetectDominantLanguageRequest()
            {
                Text = text,
            };

            var detectDominantLanguageResponse = await comprehendClient.DetectDominantLanguageAsync(detectDominantLanguageRequest);
            foreach (var dl in detectDominantLanguageResponse.Languages)
            {
                Console.WriteLine($"Language Code: {dl.LanguageCode}, Score: {dl.Score}");
            }

            Console.WriteLine("Done");
        }
    }

• 有API關詳細資訊，請參閱 DetectDominantLanguage（AWS SDK for .NET API參考。

CLI

AWS CLI

檢測輸入文本的主要語言

以下內容detect-dominant-language分析輸入文字並識別主要語言。也會輸出預先訓練的模型的置信度分數。

aws comprehend detect-dominant-language \
    --text "It is a beautiful day in Seattle."

輸出：

{
    "Languages": [
        {
            "LanguageCode": "en",
            "Score": 0.9877256155014038
        }
    ]
}

如需詳細資訊，請參閱 Amazon Comprehend 開發人員指南中的主導語言。

• 有API關詳細資訊，請參閱 DetectDominantLanguage（AWS CLI 指令參考。

Java

SDK對於爪哇 2.x

注意

還有更多關於 GitHub。尋找完整範例，並瞭解如何在 AWS 代碼示例存儲庫。

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.comprehend.ComprehendClient;
import software.amazon.awssdk.services.comprehend.model.ComprehendException;
import software.amazon.awssdk.services.comprehend.model.DetectDominantLanguageRequest;
import software.amazon.awssdk.services.comprehend.model.DetectDominantLanguageResponse;
import software.amazon.awssdk.services.comprehend.model.DominantLanguage;
import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class DetectLanguage {
    public static void main(String[] args) {
        // Specify French text - "It is raining today in Seattle".
        String text = "Il pleut aujourd'hui à Seattle";
        Region region = Region.US_EAST_1;

        ComprehendClient comClient = ComprehendClient.builder()
                .region(region)
                .build();

        System.out.println("Calling DetectDominantLanguage");
        detectTheDominantLanguage(comClient, text);
        comClient.close();
    }

    public static void detectTheDominantLanguage(ComprehendClient comClient, String text) {
        try {
            DetectDominantLanguageRequest request = DetectDominantLanguageRequest.builder()
                    .text(text)
                    .build();

            DetectDominantLanguageResponse resp = comClient.detectDominantLanguage(request);
            List<DominantLanguage> allLanList = resp.languages();
            for (DominantLanguage lang : allLanList) {
                System.out.println("Language is " + lang.languageCode());
            }

        } catch (ComprehendException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

• 有API關詳細資訊，請參閱 DetectDominantLanguage（AWS SDK for Java 2.x API參考。

Python

SDK對於 Python（肉毒桿菌 3）

注意

還有更多關於 GitHub。尋找完整範例，並瞭解如何在 AWS 代碼示例存儲庫。

class ComprehendDetect:
    """Encapsulates Comprehend detection functions."""

    def __init__(self, comprehend_client):
        """
        :param comprehend_client: A Boto3 Comprehend client.
        """
        self.comprehend_client = comprehend_client


    def detect_languages(self, text):
        """
        Detects languages used in a document.

        :param text: The document to inspect.
        :return: The list of languages along with their confidence scores.
        """
        try:
            response = self.comprehend_client.detect_dominant_language(Text=text)
            languages = response["Languages"]
            logger.info("Detected %s languages.", len(languages))
        except ClientError:
            logger.exception("Couldn't detect languages.")
            raise
        else:
            return languages

• 有API關詳細資訊，請參閱 DetectDominantLanguage（AWS SDK對於 Python（肉毒桿 3）API參考。

有關的完整列表 AWS SDK開發人員指南和代碼示例，請參閱使用 Amazon Comprehend 與 SDK AWS。本主題也包含有關入門的資訊以及舊SDK版的詳細資訊。