翻译文本（高级版）

Cloud Translation 高级版支持以下功能：使用自定义 AutoML Translation 模型翻译文本，以及创建术语表以确保 Cloud Translation API 翻译特定于客户的网域术语。

如果要为项目使用 AutoML 自定义模型，您必须启用 AutoML API (automl.googleapis.com)。如需了解有关安装 Cloud SDK、使用服务帐号设置项目以及获取访问令牌的说明，请参阅设置页面。如果您计划使用术语表或批处理功能，还需要创建 Cloud Storage 存储分区，并将其访问权限授予您的服务帐号。

准备工作

在开始使用 Cloud Translation API 之前，您必须有一个启用了 Cloud Translation API 的项目，以及相应的凭据。您还可以安装常用编程语言的客户端库，以便调用 API。

如需了解详情，请参阅设置页面。

比较模型

向 Cloud Translation 高级版发出翻译请求时，您可以指定要使用的翻译模型。如果未指定模型，则在语言对受支持的情况下，系统会使用 nmt 模型，否则会使用 PBMT 模型。

模型	最适合的使用场景	示例
神经机器翻译 (NMT) 模型	诸如并非针对某个领域的公共网站内容之类的一般文本用例，例如新闻文章。	新闻文章、社交媒体、聊天应用、评论
基于短语的机器翻译 (PBMT) 模型	NMT 通常可以提供更好的译文。默认情况下，如果某个语言对不存在 NMT 模型，则系统可能会使用 PBMT。	使用时机：当 NMT 不可用时。
AutoML 翻译模型	特定领域的文本。客户提供特定于其用例的训练数据，针对给定语言对自定义用于特定领域的 Google 基本模型。	财经新闻、技术文档、使用该领域独有的术语和行话的任何文本。

您可以使用翻译模型的 ID 指定相应的翻译模型。对于常规的 Google 模型，NMT 模型和 PBMT 模型的 ID 分别为 general/nmt 和 general/base。如需了解 AutoML Translation 模型 ID，请参阅下一部分。

翻译文本

输入文本可以是纯文本或 HTML。Cloud Translation API 不会翻译输入文本中的任何 HTML 标记，只会翻译出现在标记之间的文本。由于源语言和目标语言之间存在差异，输出会尽可能地保留（未翻译的）HTML 标记，并将翻译的文本置于标记之间。由于翻译中的词序更改，输出中 HTML 标记的顺序可能与输入文本中的顺序不同。

翻译输入字符串

REST 和命令行

要翻译文本，请发出 POST 请求，并在请求正文中提供 JSON，以标识要翻译的源语言 (source_language_code)、目标语言 (target_language_code) 以及要翻译的文本 (contents)。您可以提供多个要翻译的文本字符串，只需在 JSON 代码中加入这些字符串即可（请参阅示例）。可以使用相应的 ISO-639-1 代码来标识源语言和目标语言。

下面显示了使用 curl 或 PowerShell 的 POST 请求的示例。该示例使用通过 Google Cloud Cloud SDK 为项目设置的服务帐号的访问令牌。如需了解有关安装 Cloud SDK、使用服务帐号设置项目以及获取访问令牌的说明，请参阅设置页面。

在使用下面的请求数据之前，请先进行以下替换：

project-number-or-id：您的 Google Cloud 项目编号或 ID

HTTP 方法和网址：

POST https://translation.googleapis.com/v3/projects/project-number-or-id:translateText

请求 JSON 正文：

{
  "sourceLanguageCode": "en",
  "targetLanguageCode": "ru",
  "contents": ["Dr. Watson, come here!", "Bring me some coffee!"]
}

如需发送请求，请选择以下方式之一：

curl

将请求正文保存在名为 request.json 的文件中，然后执行以下命令：

curl -X POST \
-H "Authorization: Bearer "$(gcloud auth application-default print-access-token) \
-H "Content-Type: application/json; charset=utf-8" \
-d @request.json \
https://translation.googleapis.com/v3/projects/project-number-or-id:translateText

PowerShell

将请求正文保存在名为 request.json 的文件中，然后执行以下命令：

$cred = gcloud auth application-default print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
  -Method POST `
  -Headers $headers `
  -ContentType: "application/json; charset=utf-8" `
  -InFile request.json `
  -Uri "https://translation.googleapis.com/v3/projects/project-number-or-id:translateText
" | Select-Object -Expand Content

您应该收到类似以下内容的 JSON 响应：

{
  "translations": [
    {
      "translatedText": "Доктор Ватсон, иди сюда!",
    },
    {
      "translatedText": "Принеси мне кофе!",
    }
  ]
}

translations 数组包含两个 translatedText 字段，其中译文以请求的 targetLanguageCode 语言（ru：俄语）提供。译文的排列顺序与相应源数组在请求中的顺序相同。

C#

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 C# 设置说明进行操作。如需了解详情，请参阅 Translation C# API 参考文档。

在 GitHub 上查看反馈


using Google.Api.Gax.ResourceNames;
using Google.Cloud.Translate.V3;
using System;

namespace GoogleCloudSamples
{
    public static class TranslateText
    {
        /// <summary>
        /// Translates a given text to a target language.
        /// </summary>
        /// <param name="text">The content to translate.</param>
        /// <param name="targetLanguage">Required. Target language code.</param>
        /// <param name="projectId">Your Google Cloud Project ID.</param>
        public static void TranslateTextSample(string text = "[TEXT_TO_TRANSLATE]",
            string targetLanguage = "ja",
            string projectId = "[Google Cloud Project ID]")
        {
            TranslationServiceClient translationServiceClient = TranslationServiceClient.Create();
            TranslateTextRequest request = new TranslateTextRequest
            {
                Contents =
                {
                    // The content to translate.
                    text,
                },
                TargetLanguageCode = targetLanguage,
                ParentAsLocationName = new LocationName(projectId, "global"),
            };
            TranslateTextResponse response = translationServiceClient.TranslateText(request);
            // Display the translation for each input text provided
            foreach (Translation translation in response.Translations)
            {
                Console.WriteLine($"Translated text: {translation.TranslatedText}");
            }
        }
    }

Go

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Go 设置说明进行操作。如需了解详情，请参阅 Translation Go API 参考文档。

在 GitHub 上查看反馈

import (
	"context"
	"fmt"
	"io"

	translate "cloud.google.com/go/translate/apiv3"
	translatepb "google.golang.org/genproto/googleapis/cloud/translate/v3"
)

// translateText translates input text and returns translated text.
func translateText(w io.Writer, projectID string, sourceLang string, targetLang string, text string) error {
	// projectID := "my-project-id"
	// sourceLang := "en-US"
	// targetLang := "fr"
	// text := "Text you wish to translate"

	ctx := context.Background()
	client, err := translate.NewTranslationClient(ctx)
	if err != nil {
		return fmt.Errorf("NewTranslationClient: %v", err)
	}
	defer client.Close()

	req := &translatepb.TranslateTextRequest{
		Parent:             fmt.Sprintf("projects/%s/locations/global", projectID),
		SourceLanguageCode: sourceLang,
		TargetLanguageCode: targetLang,
		MimeType:           "text/plain", // Mime types: "text/plain", "text/html"
		Contents:           []string{text},
	}

	resp, err := client.TranslateText(ctx, req)
	if err != nil {
		return fmt.Errorf("TranslateText: %v", err)
	}

	// Display the translation for each input text provided
	for _, translation := range resp.GetTranslations() {
		fmt.Fprintf(w, "Translated text: %v\n", translation.GetTranslatedText())
	}

	return nil
}

Java

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Java 设置说明进行操作。如需了解详情，请参阅 Translation Java API 参考文档。

在 GitHub 上查看反馈

import com.google.cloud.translate.v3.LocationName;
import com.google.cloud.translate.v3.TranslateTextRequest;
import com.google.cloud.translate.v3.TranslateTextResponse;
import com.google.cloud.translate.v3.Translation;
import com.google.cloud.translate.v3.TranslationServiceClient;
import java.io.IOException;

public class TranslateText {

  public static void translateText() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "YOUR-PROJECT-ID";
    // Supported Languages: https://cloud.google.com/translate/docs/languages
    String targetLanguage = "your-target-language";
    String text = "your-text";
    translateText(projectId, targetLanguage, text);
  }

  // Translating Text
  public static void translateText(String projectId, String targetLanguage, String text)
      throws IOException {

    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    try (TranslationServiceClient client = TranslationServiceClient.create()) {
      // Supported Locations: `global`, [glossary location], or [model location]
      // Glossaries must be hosted in `us-central1`
      // Custom Models must use the same location as your model. (us-central1)
      LocationName parent = LocationName.of(projectId, "global");

      // Supported Mime Types: https://cloud.google.com/translate/docs/supported-formats
      TranslateTextRequest request =
          TranslateTextRequest.newBuilder()
              .setParent(parent.toString())
              .setMimeType("text/plain")
              .setTargetLanguageCode(targetLanguage)
              .addContents(text)
              .build();

      TranslateTextResponse response = client.translateText(request);

      // Display the translation for each input text provided
      for (Translation translation : response.getTranslationsList()) {
        System.out.printf("Translated text: %s\n", translation.getTranslatedText());
      }
    }
  }
}

Node.js

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Node.js 设置说明进行操作。如需了解详情，请参阅 Translation Node.js API 参考文档。

在 GitHub 上查看反馈

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const location = 'global';
// const text = 'text to translate';

// Imports the Google Cloud Translation library
const {TranslationServiceClient} = require('@google-cloud/translate');

// Instantiates a client
const translationClient = new TranslationServiceClient();
async function translateText() {
  // Construct request
  const request = {
    parent: `projects/${projectId}/locations/${location}`,
    contents: [text],
    mimeType: 'text/plain', // mime types: text/plain, text/html
    sourceLanguageCode: 'en',
    targetLanguageCode: 'sr-Latn',
  };

  try {
    // Run request
    const [response] = await translationClient.translateText(request);

    for (const translation of response.translations) {
      console.log(`Translation: ${translation.translatedText}`);
    }
  } catch (error) {
    console.error(error.details);
  }
}

translateText();

PHP

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 PHP 设置说明进行操作。如需了解详情，请参阅 Translation PHP API 参考文档。

在 GitHub 上查看反馈

use Google\Cloud\Translate\V3\TranslationServiceClient;

$translationServiceClient = new TranslationServiceClient();

/** Uncomment and populate these variables in your code */
// $text = 'Hello, world!';
// $targetLanguage = 'fr';
// $projectId = '[Google Cloud Project ID]';
$contents = [$text];
$formattedParent = $translationServiceClient->locationName($projectId, 'global');

try {
    $response = $translationServiceClient->translateText(
        $contents,
        $targetLanguage,
        $formattedParent
    );
    // Display the translation for each input text provided
    foreach ($response->getTranslations() as $translation) {
        printf('Translated text: %s' . PHP_EOL, $translation->getTranslatedText());
    }
} finally {
    $translationServiceClient->close();
}

Python

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Python 设置说明进行操作。如需了解详情，请参阅 Translation Python API 参考文档。

在 GitHub 上查看反馈

from google.cloud import translate

def translate_text(text="YOUR_TEXT_TO_TRANSLATE", project_id="YOUR_PROJECT_ID"):
    """Translating Text."""

    client = translate.TranslationServiceClient()

    location = "global"

    parent = f"projects/{project_id}/locations/{location}"

    # Detail on supported types can be found here:
    # https://cloud.google.com/translate/docs/supported-formats
    response = client.translate_text(
        request={
            "parent": parent,
            "contents": [text],
            "mime_type": "text/plain",  # mime types: text/plain, text/html
            "source_language_code": "en-US",
            "target_language_code": "fr",
        }
    )

    # Display the translation for each input text provided
    for translation in response.translations:
        print("Translated text: {}".format(translation.translated_text))

Ruby

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Ruby 设置说明进行操作。如需了解详情，请参阅 Translation Ruby API 参考文档。

在 GitHub 上查看反馈

require "google/cloud/translate"

# project_id = "[Google Cloud Project ID]"
# location_id = "[LOCATION ID]"

# The content to translate in string format
contents = ["Hello, world!"]
# Required. The BCP-47 language code to use for translation.
target_language = "fr"

client = Google::Cloud::Translate.translation_service

parent = client.location_path project: project_id, location: location_id

response = client.translate_text parent:               parent,
                                 contents:             contents,
                                 target_language_code: target_language

# Display the translation for each input text provided
response.translations.each do |translation|
  puts "Translated text: #{translation.translated_text}"
end

使用 AutoML Translation 自定义模型翻译文本

REST 和命令行

以下示例使用模型 ID 为 TRL1395675701985363739 的 AutoML Translation 模型翻译文本。您可以从 AutoML Translation 界面上的模型列表中获取 AutoML Translation 模型的 ID，也可以从在训练模型时收到的 API 响应中获取此 ID。

您必须确保已为项目启用了 Cloud AutoML API。将 AutoML 模型与 Cloud Translation API 搭配使用时，必须确保这一点。请参阅此使用入门文档，以启用该 API。

在使用下面的请求数据之前，请先进行以下替换：

project-number-or-id：您的 Google Cloud 项目编号或 ID

HTTP 方法和网址：

POST https://translation.googleapis.com/v3/projects/project-number-or-id/locations/us-central1:translateText

请求 JSON 正文：

{
  "model": "projects/project-number-or-id/locations/us-central1/models/TRL1395675701985363739",
  "sourceLanguageCode": "en",
  "targetLanguageCode": "ru",
  "contents": ["Dr. Watson, please discard your trash. You've shared unsolicited email with me.
  Let's talk about spam and importance ranking in a confidential mode."]
}

如需发送请求，请选择以下方式之一：

curl

将请求正文保存在名为 request.json 的文件中，然后执行以下命令：

curl -X POST \
-H "Authorization: Bearer "$(gcloud auth application-default print-access-token) \
-H "Content-Type: application/json; charset=utf-8" \
-d @request.json \
https://translation.googleapis.com/v3/projects/project-number-or-id/locations/us-central1:translateText

PowerShell

将请求正文保存在名为 request.json 的文件中，然后执行以下命令：

$cred = gcloud auth application-default print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
  -Method POST `
  -Headers $headers `
  -ContentType: "application/json; charset=utf-8" `
  -InFile request.json `
  -Uri "https://translation.googleapis.com/v3/projects/project-number-or-id/locations/us-central1:translateText
" | Select-Object -Expand Content

您应该收到类似以下内容的 JSON 响应：

{
  "translation": {
    "translatedText": "Доктор Ватсон, пожалуйста, откажитесь от своего мусора.
    Вы поделились нежелательной электронной почтой со мной. Давайте поговорим о
    спаме и важности рейтинга в конфиденциальном режиме.",
    "model": "projects/project-number/locations/us-central1/models/TRL1395675701985363739"
  }
}

C#

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 C# 设置说明进行操作。如需了解详情，请参阅 Translation C# API 参考文档。

在 GitHub 上查看反馈


using Google.Api.Gax.ResourceNames;
using Google.Cloud.Translate.V3;
using System;

namespace GoogleCloudSamples
{
    public static class TranslateTextWithModel
    {
        /// <summary>
        /// Translates a given text to a target language with custom model.
        /// </summary>
        /// <param name="modelId">Translation Model ID.</param>
        /// <param name="text">The content to translate.t</param>
        /// <param name="targetLanguage">Required. Target language code.</param>
        /// <param name="sourceLanguage">Optional. Source language code.</param>
        /// <param name="projectId"> Google Project ID.</param>
        /// <param name="location"> Region.</param>
        public static void TranslateTextWithModelSample(
            string modelId = "[YOUR_MODEL_ID]",
            string text = "[TEXT_TO_TRANSLATE]",
            string targetLanguage = "ja",
            string sourceLanguage = "en",
            string projectId = "[Google Cloud Project ID]",
            string location = "us-central1")
        {
            TranslationServiceClient translationServiceClient = TranslationServiceClient.Create();
            string modelPath = $"projects/{projectId}/locations/{location}/models/{modelId}";

            TranslateTextRequest request = new TranslateTextRequest
            {
                Contents =
                {
                    // The content to translate.
                    text,
                },
                TargetLanguageCode = targetLanguage,
                ParentAsLocationName = new LocationName(projectId, location),
                Model = modelPath,
                SourceLanguageCode = sourceLanguage,
                MimeType = "text/plain",
            };
            TranslateTextResponse response = translationServiceClient.TranslateText(request);
            // Display the translation for each input text provided
            foreach (Translation translation in response.Translations)
            {
                Console.WriteLine($"Translated text: {translation.TranslatedText}");
            }
        }
    }

Go

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Go 设置说明进行操作。如需了解详情，请参阅 Translation Go API 参考文档。

在 GitHub 上查看反馈

import (
	"context"
	"fmt"
	"io"

	translate "cloud.google.com/go/translate/apiv3"
	translatepb "google.golang.org/genproto/googleapis/cloud/translate/v3"
)

// translateTextWithModel translates input text and returns translated text.
func translateTextWithModel(w io.Writer, projectID string, location string, sourceLang string, targetLang string, text string, modelID string) error {
	// projectID := "my-project-id"
	// location := "us-central1"
	// sourceLang := "en"
	// targetLang := "fr"
	// text := "Hello, world!"
	// modelID := "your-model-id"

	ctx := context.Background()
	client, err := translate.NewTranslationClient(ctx)
	if err != nil {
		return fmt.Errorf("NewTranslationClient: %v", err)
	}
	defer client.Close()

	req := &translatepb.TranslateTextRequest{
		Parent:             fmt.Sprintf("projects/%s/locations/%s", projectID, location),
		SourceLanguageCode: sourceLang,
		TargetLanguageCode: targetLang,
		MimeType:           "text/plain", // Mime types: "text/plain", "text/html"
		Contents:           []string{text},
		Model:              fmt.Sprintf("projects/%s/locations/%s/models/%s", projectID, location, modelID),
	}

	resp, err := client.TranslateText(ctx, req)
	if err != nil {
		return fmt.Errorf("TranslateText: %v", err)
	}

	// Display the translation for each input text provided
	for _, translation := range resp.GetTranslations() {
		fmt.Fprintf(w, "Translated text: %v\n", translation.GetTranslatedText())
	}

	return nil
}

Java

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Java 设置说明进行操作。如需了解详情，请参阅 Translation Java API 参考文档。

在 GitHub 上查看反馈

import com.google.cloud.translate.v3.LocationName;
import com.google.cloud.translate.v3.TranslateTextRequest;
import com.google.cloud.translate.v3.TranslateTextResponse;
import com.google.cloud.translate.v3.Translation;
import com.google.cloud.translate.v3.TranslationServiceClient;
import java.io.IOException;

public class TranslateTextWithModel {

  public static void translateTextWithModel() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "YOUR-PROJECT-ID";
    // Supported Languages: https://cloud.google.com/translate/docs/languages
    String sourceLanguage = "your-source-language";
    String targetLanguage = "your-target-language";
    String text = "your-text";
    String modelId = "YOUR-MODEL-ID";
    translateTextWithModel(projectId, sourceLanguage, targetLanguage, text, modelId);
  }

  // Translating Text with Model
  public static void translateTextWithModel(
      String projectId, String sourceLanguage, String targetLanguage, String text, String modelId)
      throws IOException {

    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    try (TranslationServiceClient client = TranslationServiceClient.create()) {
      // Supported Locations: `global`, [glossary location], or [model location]
      // Glossaries must be hosted in `us-central1`
      // Custom Models must use the same location as your model. (us-central1)
      String location = "us-central1";
      LocationName parent = LocationName.of(projectId, location);
      String modelPath =
          String.format("projects/%s/locations/%s/models/%s", projectId, location, modelId);

      // Supported Mime Types: https://cloud.google.com/translate/docs/supported-formats
      TranslateTextRequest request =
          TranslateTextRequest.newBuilder()
              .setParent(parent.toString())
              .setMimeType("text/plain")
              .setSourceLanguageCode(sourceLanguage)
              .setTargetLanguageCode(targetLanguage)
              .addContents(text)
              .setModel(modelPath)
              .build();

      TranslateTextResponse response = client.translateText(request);

      // Display the translation for each input text provided
      for (Translation translation : response.getTranslationsList()) {
        System.out.printf("Translated text: %s\n", translation.getTranslatedText());
      }
    }
  }
}

Node.js

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Node.js 设置说明进行操作。如需了解详情，请参阅 Translation Node.js API 参考文档。

在 GitHub 上查看反馈

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const location = 'us-central1';
// const modelId = 'YOUR_MODEL_ID';
// const text = 'text to translate';

// Imports the Google Cloud Translation library
const {TranslationServiceClient} = require('@google-cloud/translate');

// Instantiates a client
const translationClient = new TranslationServiceClient();
async function translateTextWithModel() {
  // Construct request
  const request = {
    parent: `projects/${projectId}/locations/${location}`,
    contents: [text],
    mimeType: 'text/plain', // mime types: text/plain, text/html
    sourceLanguageCode: 'en',
    targetLanguageCode: 'ja',
    model: `projects/${projectId}/locations/${location}/models/${modelId}`,
  };

  try {
    // Run request
    const [response] = await translationClient.translateText(request);

    for (const translation of response.translations) {
      console.log(`Translated Content: ${translation.translatedText}`);
    }
  } catch (error) {
    console.error(error.details);
  }
}

translateTextWithModel();

PHP

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 PHP 设置说明进行操作。如需了解详情，请参阅 Translation PHP API 参考文档。

在 GitHub 上查看反馈

use Google\Cloud\Translate\V3\TranslationServiceClient;

$translationServiceClient = new TranslationServiceClient();

/** Uncomment and populate these variables in your code */
// $modelId = '[MODEL ID]';
// $text = 'Hello, world!';
// $targetLanguage = 'fr';
// $sourceLanguage = 'en';
// $projectId = '[Google Cloud Project ID]';
// $location = 'global';
$modelPath = sprintf(
    'projects/%s/locations/%s/models/%s',
    $projectId,
    $location,
    $modelId
);
$contents = [$text];
$formattedParent = $translationServiceClient->locationName(
    $projectId,
    $location
);

// Optional. Can be "text/plain" or "text/html".
$mimeType = 'text/plain';

try {
    $response = $translationServiceClient->translateText(
        $contents,
        $targetLanguage,
        $formattedParent,
        [
            'model' => $modelPath,
            'sourceLanguageCode' => $sourceLanguage,
            'mimeType' => $mimeType
        ]
    );
    // Display the translation for each input text provided
    foreach ($response->getTranslations() as $translation) {
        printf('Translated text: %s' . PHP_EOL, $translation->getTranslatedText());
    }
} finally {
    $translationServiceClient->close();
}

Python

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Python 设置说明进行操作。如需了解详情，请参阅 Translation Python API 参考文档。

在 GitHub 上查看反馈


from google.cloud import translate

def translate_text_with_model(
    text="YOUR_TEXT_TO_TRANSLATE",
    project_id="YOUR_PROJECT_ID",
    model_id="YOUR_MODEL_ID",
):
    """Translates a given text using Translation custom model."""

    client = translate.TranslationServiceClient()

    location = "us-central1"
    parent = f"projects/{project_id}/locations/{location}"
    model_path = f"{parent}/models/{model_id}"

    # Supported language codes: https://cloud.google.com/translate/docs/languages
    response = client.translate_text(
        request={
            "contents": [text],
            "target_language_code": "ja",
            "model": model_path,
            "source_language_code": "en",
            "parent": parent,
            "mime_type": "text/plain",  # mime types: text/plain, text/html
        }
    )
    # Display the translation for each input text provided
    for translation in response.translations:
        print("Translated text: {}".format(translation.translated_text))

Ruby

在试用此示例之前，请按照《Translation 快速入门：使用客户端库》中的 Ruby 设置说明进行操作。如需了解详情，请参阅 Translation Ruby API 参考文档。

在 GitHub 上查看反馈

require "google/cloud/translate"

# project_id = "[Google Cloud Project ID]"
# location_id = "[LOCATION ID]"
# model_id = "[MODEL ID]"

# The `model` type requested for this translation.
model = "projects/#{project_id}/locations/#{location_id}/models/#{model_id}"
# The content to translate in string format
contents = ["Hello, world!"]
# Required. The BCP-47 language code to use for translation.
target_language = "fr"
# Optional. The BCP-47 language code of the input text.
source_language = "en"
# Optional. Can be "text/plain" or "text/html".
mime_type = "text/plain"

client = Google::Cloud::Translate.translation_service

parent = client.location_path project: project_id, location: location_id

response = client.translate_text parent:               parent,
                                 contents:             contents,
                                 target_language_code: target_language,
                                 source_language_code: source_language,
                                 model:                model,
                                 mime_type:            mime_type

# Display the translation for each input text provided
response.translations.each do |translation|
  puts "Translated text: #{translation.translated_text}"
end

使用模型参数

REST 和命令行

您可以使用 model 查询参数指定使用哪个模型进行翻译。如需使用 PBMT 模型，请指定 base；如需使用 NMT 模型，请指定 nmt。如果您在请求中指定了 NMT 模型，但 NMT 模型不支持请求的语言翻译对，则系统会使用 PBMT 模型。

以下示例展示了如何在翻译请求中使用 model 参数，还展示了如何选择 base。

在使用下面的请求数据之前，请先进行以下替换：

project-number-or-id：您的 Google Cloud 项目编号或 ID

HTTP 方法和网址：

POST https://translation.googleapis.com/v3/projects/project-number-or-id/locations/global:translateText

请求 JSON 正文：

{
  "model": "projects/project-number-or-id/locations/global/models/general/base",
  "sourceLanguageCode": "en",
  "targetLanguageCode": "de",
  "contents": ["Come here!"]
}

如需发送请求，请选择以下方式之一：

curl

将请求正文保存在名为 request.json 的文件中，然后执行以下命令：

curl -X POST \
-H "Authorization: Bearer "$(gcloud auth application-default print-access-token) \
-H "Content-Type: application/json; charset=utf-8" \
-d @request.json \
https://translation.googleapis.com/v3/projects/project-number-or-id/locations/global:translateText

PowerShell

将请求正文保存在名为 request.json 的文件中，然后执行以下命令：

$cred = gcloud auth application-default print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
  -Method POST `
  -Headers $headers `
  -ContentType: "application/json; charset=utf-8" `
  -InFile request.json `
  -Uri "https://translation.googleapis.com/v3/projects/project-number-or-id/locations/global:translateText
" | Select-Object -Expand Content

您应该收到类似以下内容的 JSON 响应：

{
  "translations": [
    {
      "translatedText": "Komm her!",
      "model": "projects/project-number/locations/global/models/general/base"
    }
  ]
}