重新提示 (Dialogflow)

在 Dialogflow 中探索

点击继续以在 Dialogflow 中导入我们的提示示例。然后，按照 部署和测试示例的步骤如下：

  1. 输入代理名称并为示例创建新的 Dialogflow 代理。
  2. 代理导入完成后，点击转到代理 (Go to agent)。
  3. 在主导航菜单中，前往 Fulfillment。
  4. 启用内嵌编辑器，然后点击部署。编辑器包含示例 代码。
  5. 在主导航菜单中，前往 Integrations（集成），然后点击 Google Google 助理。
  6. 在显示的模态窗口中，启用 Auto-preview changes（自动预览更改），然后点击 Test（测试） 打开 Actions 模拟器。
  7. 在模拟器中，输入 Talk to my test app 以测试该示例！
<ph type="x-smartling-placeholder"></ph> 继续

您可以使用以下功能来处理用户未提供 输入（无输入错误）：

  • 系统默认重新提示 - 自动重新提示用户 提供适用于所有情况的通用预制重复提示。
  • 动态提示 - 声明您要在网页 并且在每次发生以下情况时接收 intent (Actions SDK) 或事件 (Dialogflow) 没有输入，因此您可以根据具体情况进行处理。
。

系统默认重新提示

默认情况下，当您向 Google 助理返回响应时，系统会使用 默认重新提示，要求用户重复输入或重新输入。

Dialogflow

Dialogflow 会强制执行最多三项非匹配和无输入输入。 当对话达到 3 次收集尝试次数后，您的 Dialogflow 代理 将以默认响应结束对话。非匹配输入， Dialogflow 是指触发您的某个后备意图。

动态提示

每当您的 Action 失败时，您都可以收到 intent 或 Dialogflow 事件 接收任何输入。这样，您可以根据某些信息返回不同的响应 逻辑（如有必要），并适当地重新提示用户。

Dialogflow

您可以创建两种类型的无输入意图：

  • 普通 intent - 此方法不会应用任何上下文，因此将被触发 当没有触发其他更具情境性的意图时触发。有用 。

  • 后续意图 - 通过 Dialogflow 强制执行后续意图 上下文，确保仅在 对话。这对于您要采纳的量身定制的重新提示非常有用 特定情况下

处理无输入事件：

  1. 在左侧导航栏中，点击意图。
  2. 创建正常意图或后续意图。
    • 对于普通 intent：点击 Intent 菜单旁边的 + 图标 然后为您的意图命名，比如“Reprompt”。

    • 对于后续意图：将鼠标悬停在您要 自定义无输入重新提示，然后点击添加后续意图 > custom。系统会在原始意图下方创建一个新意图。

  3. 点击新创建的 intent 以打开 intent 编辑器。
  4. 点击事件部分，然后输入“actions_intent_NO_INPUT”复制到 添加事件字段。
  5. 在操作部分中，输入操作名称或使用提供的名称 默认情况。在本示例中，我们将使用“no.input”。

  6. 点击保存。
  7. 在左侧导航栏中，点击集成
  8. 选择 Google 助理，然后点击测试 确保这些更改反映在您的 Actions 项目中。

每当此 intent 无输入时，您可以使用 您的 fulfillment 以返回适当的响应，或在 Dialogflow 中创建一个响应。 例如，下面是一些使用客户端库 处理一个名为“Reprompt”的常规无输入 intent。

Node.js

const {dialogflow} = require('actions-on-google');
const functions = require('firebase-functions');

const app = dialogflow({debug: true});

app.intent('Reprompt', (conv) => {
  const repromptCount = parseInt(conv.arguments.get('REPROMPT_COUNT'));
  if (repromptCount === 0) {
  conv.ask(`What was that?`);
  } else if (repromptCount === 1) {
  conv.ask(`Sorry I didn't catch that. Could you repeat yourself?`);
  } else if (conv.arguments.get('IS_FINAL_REPROMPT')) {
  conv.close(`Okay let's try this again later.`);
  }
});

exports.dialogflowFirebaseFulfillment = functions.https.onRequest(app);
index.js

Java

package com.example;

import com.google.actions.api.ActionRequest;
import com.google.actions.api.ActionResponse;
import com.google.actions.api.DialogflowApp;
import com.google.actions.api.ForIntent;
import com.google.actions.api.response.ResponseBuilder;

public class MyActionsApp extends DialogflowApp {

  @ForIntent("Reprompt")
  public ActionResponse reprompt(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    int repromptCount = request.getRepromptCount();
    String response;
    if (repromptCount == 0) {
      response = "What was that?";
    } else if (repromptCount == 1) {
      response = "Sorry, I didn't catch that. Could you repeat yourself?";
    } else {
      responseBuilder.endConversation();
      response = "Okay let's try this again later.";
    }
    return responseBuilder.add(response).build();
  }
}
MyActionsApp.java

请求 JSON

请注意，下面的 JSON 描述的是 webhook 请求。

{
  "responseId": "f26a9188-4998-42eb-ac16-d0e6e273b137-712767ed",
  "queryResult": {
    "queryText": "actions_intent_NO_INPUT",
    "parameters": {},
    "allRequiredParamsPresent": true,
    "fulfillmentText": "Webhook failed for intent: Reprompt",
    "fulfillmentMessages": [
      {
        "text": {
          "text": [
            "Webhook failed for intent: Reprompt"
          ]
        }
      }
    ],
    "outputContexts": [
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/actions_capability_media_response_audio"
      },
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/actions_capability_account_linking"
      },
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/actions_capability_audio_output"
      },
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/google_assistant_input_type_voice"
      },
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/actions_intent_no_input",
        "parameters": {
          "REPROMPT_COUNT": 2,
          "IS_FINAL_REPROMPT": true
        }
      }
    ],
    "intent": {
      "name": "projects/df-reprompts-kohler/agent/intents/75dfd97d-6368-4436-9533-70f05ae76c96",
      "displayName": "Reprompt"
    },
    "intentDetectionConfidence": 1,
    "languageCode": "en"
  },
  "originalDetectIntentRequest": {
    "source": "google",
    "version": "2",
    "payload": {
      "user": {
        "locale": "en-US",
        "userVerificationStatus": "VERIFIED"
      },
      "conversation": {
        "conversationId": "ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA",
        "type": "ACTIVE",
        "conversationToken": "[]"
      },
      "inputs": [
        {
          "intent": "actions.intent.NO_INPUT",
          "rawInputs": [
            {
              "inputType": "VOICE"
            }
          ],
          "arguments": [
            {
              "name": "REPROMPT_COUNT",
              "intValue": "2"
            },
            {
              "name": "IS_FINAL_REPROMPT",
              "boolValue": true
            }
          ]
        }
      ],
      "surface": {
        "capabilities": [
          {
            "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
          },
          {
            "name": "actions.capability.ACCOUNT_LINKING"
          },
          {
            "name": "actions.capability.AUDIO_OUTPUT"
          }
        ]
      },
      "availableSurfaces": [
        {
          "capabilities": [
            {
              "name": "actions.capability.AUDIO_OUTPUT"
            },
            {
              "name": "actions.capability.SCREEN_OUTPUT"
            },
            {
              "name": "actions.capability.WEB_BROWSER"
            }
          ]
        }
      ]
    }
  },
  "session": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA"
}

响应 JSON

请注意，下面的 JSON 描述的是 webhook 响应。

{
  "payload": {
    "google": {
      "expectUserResponse": false,
      "richResponse": {
        "items": [
          {
            "simpleResponse": {
              "textToSpeech": "Okay let's try this again later."
            }
          }
        ]
      }
    }
  }
}

Actions SDK

如需处理无输入 intent，请执行以下操作：

  1. 在操作软件包内的 conversations 对象中，声明 接收 actions.intent.NO_INPUT intent，每当用户未提供 输入。 
    {
  "actions": [
    {
      "description": "Default Welcome Intent",
      "name": "MAIN",
      "fulfillment": {
        "conversationName": "conversation_1"
      },
      "intent": {
        "name": "actions.intent.MAIN"
      }
    }
  ],
  "conversations": {
    "conversation_1": {
      "name": "conversation_1",
      "url": "YOUR_FULFILLMENT_URL",
      "inDialogIntents": [
        {
          "name": "actions.intent.NO_INPUT"
        }
      ]
    }
  }
}
    action.json
  2. 当 Google 助理没有收到用户的任何输入时 向 fulfillment 发出的下一个请求中包含的无输入 intent。然后，您可以 处理 intent 并返回适当的重新提示响应。这里有 示例：

    Node.js

    const {actionssdk} = require('actions-on-google');
const functions = require('firebase-functions');

const app = actionssdk({debug: true});

app.intent('actions.intent.MAIN', (conv) => {
  conv.ask(`Hi! Try this sample on a speaker device, ` +
    `and stay silent when the mic is open. If trying ` +
    `on the Actions console simulator, click the no-input ` +
    `button next to the text input field.`);
});

app.intent('actions.intent.TEXT', (conv, input) => {
  conv.ask(`You said ${input}`);
  conv.ask(`Try this sample on a speaker device, ` +
    `and stay silent when the mic is open. If trying ` +
    `on the Actions console simulator, click the no-input ` +
    `button next to the text input field.`);
});

app.intent('actions.intent.NO_INPUT', (conv) => {
  const repromptCount = parseInt(conv.arguments.get('REPROMPT_COUNT'));
  if (repromptCount === 0) {
    conv.ask(`What was that?`);
  } else if (repromptCount === 1) {
    conv.ask(`Sorry I didn't catch that. Could you repeat yourself?`);
  } else if (conv.arguments.get('IS_FINAL_REPROMPT')) {
    conv.close(`Okay let's try this again later.`);
  }
});

exports.dialogflowFirebaseFulfillment = functions.https.onRequest(app);
    index.js

    Java

    package com.example;

import com.google.actions.api.ActionRequest;
import com.google.actions.api.ActionResponse;
import com.google.actions.api.ActionsSdkApp;
import com.google.actions.api.ConstantsKt;
import com.google.actions.api.ForIntent;
import com.google.actions.api.response.ResponseBuilder;
import com.google.actions.api.response.helperintent.Confirmation;
import com.google.actions.api.response.helperintent.DateTimePrompt;
import com.google.actions.api.response.helperintent.Permission;
import com.google.actions.api.response.helperintent.Place;
import com.google.api.services.actions_fulfillment.v2.model.DateTime;
import com.google.api.services.actions_fulfillment.v2.model.Location;

public class MyActionsApp extends ActionsSdkApp {

  @ForIntent("actions.intent.MAIN")
  public ActionResponse welcome(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    responseBuilder.add("Hi! Try this sample on a speaker device, and stay silent when the mic is open. If trying on the Actions console simulator, click the no-input button next to the text input field.");
    return responseBuilder.build();
  }

  @ForIntent("actions.intent.TEXT")
  public ActionResponse fallback(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    responseBuilder.add("You said " + request.getRawInput().getQuery());
    responseBuilder.add("Try this sample on a speaker device, and stay silent when the mic is open. If trying on the Actions console simulator, click the no-input button next to the text input field.");
    return responseBuilder.build();
  }

  @ForIntent("actions.intent.NO_INPUT")
  public ActionResponse reprompt(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    int repromptCount = request.getRepromptCount();
    String response;
    if (repromptCount == 0) {
      response = "What was that?";
    } else if (repromptCount == 1) {
      response = "Sorry, I didn't catch that. Could you repeat yourself?";
    } else {
      responseBuilder.endConversation();
      response = "Okay let's try this again later.";
    }
    return responseBuilder.add(response).build();
  }

}
    MyActionsApp.java

    请求 JSON

    请注意，下面的 JSON 描述的是 webhook 请求。

    {
  "user": {
    "locale": "en-US",
    "userVerificationStatus": "VERIFIED"
  },
  "conversation": {
    "conversationId": "ABwppHEVDuKUPjdZ4Ud-F2yBXN5ssRg2funUp59hSHQheAi-B5Y3EzehAKFtVwMkduqMRWscUp77ScrDjYnYxISqAM-qOXuXEuCw",
    "type": "ACTIVE",
    "conversationToken": "{\"data\":{}}"
  },
  "inputs": [
    {
      "intent": "actions.intent.NO_INPUT",
      "rawInputs": [
        {
          "inputType": "VOICE"
        }
      ],
      "arguments": [
        {
          "name": "REPROMPT_COUNT",
          "intValue": "2"
        },
        {
          "name": "IS_FINAL_REPROMPT",
          "boolValue": true
        }
      ]
    }
  ],
  "surface": {
    "capabilities": [
      {
        "name": "actions.capability.AUDIO_OUTPUT"
      },
      {
        "name": "actions.capability.ACCOUNT_LINKING"
      },
      {
        "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
      }
    ]
  },
  "availableSurfaces": [
    {
      "capabilities": [
        {
          "name": "actions.capability.SCREEN_OUTPUT"
        },
        {
          "name": "actions.capability.WEB_BROWSER"
        },
        {
          "name": "actions.capability.AUDIO_OUTPUT"
        }
      ]
    }
  ]
}

    响应 JSON

    请注意，下面的 JSON 描述的是 webhook 响应。

    {
  "expectUserResponse": false,
  "finalResponse": {
    "richResponse": {
      "items": [
        {
          "simpleResponse": {
            "textToSpeech": "Okay let's try this again later."
          }
        }
      ]
    }
  }
}