尝试使用Dialogflow上的Webhook动态给出响应时，java获取Webhook响应错误（206）

9 月，3 周 Questions & Answers 3363

我正在尝试使用java中的DialogFlow api创建一个google操作。我正在使用Webhook请求响应DialogFlow上的操作，如中所示下图

当尝试此代码时，它工作正常，并给出正确的响应，因为dialogflow具有预定义的操作功能

代码：

@PostMapping("/webhook")
public ResponseEntity payload(RequestBody FulfillmentResponse fulfillmentResponse) {
   log.info(fulfillmentResponse.getQueryResult().getQueryText());
   return ResponseEntity.ok(HttpStatus.OK);
}

但当我动态地给出响应时。这给了我一个错误

代码：

@PostMapping("/webhook")
public ResponseEntity payload(RequestBody FulfillmentResponse fulfillmentResponse) {
    log.info(fulfillmentResponse.getQueryResult().getQueryText());
    return ResponseEntity.ok("{\n" + 
            "  \"data\": {\n" + 
            "    \"google\": {\n" + 
            "      \"expectUserResponse\": true,\n" + 
            "      \"richResponse\": {\n" + 
            "        \"items\": [\n" + 
            "          {\n" + 
            "            \"simpleResponse\": {\n" + 
            "              \"textToSpeech\": \"Choose a item\"\n" + 
            "            }\n" + 
            "          }\n" + 
            "        ]\n" + 
            "      },\n" + 
            "      \"systemIntent\": {\n" + 
            "        \"intent\": \"assistant.intent.action.TEXT\",\n" + 
            "        \"data\": {\n" + 
            "          \"@type\": \"type.googleapis.com/google.actions.v2.OptionValueSpec\",\n" + 
            "          \"listSelect\": {\n" + 
            "            \"title\": \"Hello\",\n" + 
            "            \"items\": [\n" + 
            "              {\n" + 
            "                \"optionInfo\": {\n" + 
            "                  \"key\": \"first title\"\n" + 
            "                },\n" + 
            "                \"description\": \"first description\",\n" + 
            "                \"image\": {\n" + 
            "                  \"url\": \"https://developers.google.com/actions/images/badges/XPM_BADGING_GoogleAssistant_VER.png\",\n" + 
            "                  \"accessibilityText\": \"first alt\"\n" + 
            "                },\n" + 
            "                \"title\": \"first title\"\n" + 
            "              },\n" + 
            "              {\n" + 
            "                \"optionInfo\": {\n" + 
            "                  \"key\": \"second\"\n" + 
            "                },\n" + 
            "                \"description\": \"second description\",\n" + 
            "                \"image\": {\n" + 
            "                  \"url\": \"https://lh3.googleusercontent.com/Nu3a6F80WfixUqf_ec_vgXy_c0-0r4VLJRXjVFF_X_CIilEu8B9fT35qyTEj_PEsKw\",\n" + 
            "                  \"accessibilityText\": \"second alt\"\n" + 
            "                },\n" + 
            "                \"title\": \"second title\"\n" + 
            "              }\n" + 
            "            ]\n" + 
            "          }\n" + 
            "        }\n" + 
            "      }\n" + 
            "    }\n" + 
            "  }\n" + 
            "}");
}

错误：

2018-11-02 16:14:43.906 IST Error in fulfillment status received from app endpoint. See ResponseMetadata in the response. Status code: 14. Error message: Webhook error (206)
 { 
   insertId: "6nwj8wf153t5q"  
   labels: {
            channel:  "preview"   
            querystream:  "GOOGLE_USER"   
            source:  "AOG_REQUEST_RESPONSE"   
           }
   logName: "projects/elysiot-217606/logs/actions.googleapis.com%2Factions"  
   receiveTimestamp:  "2018-11-02T10:44:43.940057016Z"  
   resource: {
             labels: {
                     action_id:  "actions.intent.TEXT"    
                     project_id:  "elysiot-217606"    
                     version_id:  ""    
                     }
             type:  "assistant_action"   
             }
   severity:  "ERROR"  
   textPayload:  "Error in fulfillment status received from app endpoint. See ResponseMetadata in the response. Status code: 14. Error message: Webhook error (206)"  
   timestamp:  "2018-11-02T10:44:43.906927701Z"  
   trace:  "projects/847724381623/traces/ABwppHFGjhCqYgY_YpSxJp5p9-s6NpvBRVzWdzGRhfypm0eZcqzYjDqjCVsdpxVXofc4xpOFLs4eAtWf9Ek"  
  }

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尝试使用Dialogflow上的Webhook动态给出响应时，java获取Webhook响应错误（206）

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