表单输入网站数据提取（Gemini 2.5 flash + Gmail）

• •Google 账号和 Gmail API 凭证
• •可能需要目标 API 的认证凭证
• •Google Gemini API Key

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  "meta": {
    "instanceId": "d1786ab0d745a7498abf13a9c2cdabb1374c006e889b79eef64ce0386b8f8a41",
    "templateCredsSetupCompleted": true
  },
  "nodes": [
    {
      "id": "6d85bf32-59a5-4644-b5b0-d31aaf677bda",
      "name": "结构化输出解析器",
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "position": [
        640,
        200
      ],
      "parameters": {
        "jsonSchemaExample": "{\n    \"result\": \"extracted value(s)\"\n}"
      },
      "typeVersion": 1.2
    },
    {
      "id": "d011794a-d4bf-4750-9ad1-3cb0df662aff",
      "name": "从源 URL 获取 HTML",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        40,
        0
      ],
      "parameters": {
        "url": "={{ $json['Source URL'] }}",
        "options": {}
      },
      "typeVersion": 4.2
    },
    {
      "id": "389ac2ce-39d8-4bc9-a1af-7ea3dba0240d",
      "name": "数据提取器 LLM 链",
      "type": "@n8n/n8n-nodes-langchain.chainLlm",
      "position": [
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      ],
      "parameters": {
        "text": "=Your task is to extract the exact information specified by the user.\n\nUser’s extraction request:\n\"{{ $('Web Scraper form submission').item.json['Data to extract'] }}\"\n\nRules:\n1. Extract ONLY the requested information.\n2. If multiple matches exist, combine them into a single string separated by commas.\n3. Do NOT add explanations or extra text—output only the extracted data.\n4. Maintain the original values unless formatting is requested.\n5. If no matches are found, return: { \"result\": \"No data found\" }.\n6. Always return the response in this format:\n{\n    \"result\": \"extracted value(s)\"\n}\n\nHere is the source data:\n{{ $json.body }}\n",
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 1.6
    },
    {
      "id": "a73e7657-4a79-4b50-973f-e27d406f0278",
      "name": "Gmail - 发送结果",
      "type": "n8n-nodes-base.gmail",
      "position": [
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        0
      ],
      "webhookId": "fa29cdcc-e8e9-449a-a6a4-88a874e2a0c5",
      "parameters": {
        "sendTo": " template_data_extactor_replace_me@yopmail.com",
        "message": "=Your web scraping task has been completed.\n\nSource URL:\n{{ $('Web Scraper form submission').item.json['Source URL'] }}\n\nData Requested:\n{{ $('Web Scraper form submission').item.json['Data to extract'] }}\n\nExtracted Result:\n{{ $json.output.result }}\n\nThank you for using our web scraping automation.",
        "options": {
          "appendAttribution": false
        },
        "subject": "=✅ Web Scraping Result for {{ $('Web Scraper form submission').item.json['Source URL'] }}",
        "emailType": "text"
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "CeBpTZBQSAMKVKJY",
          "name": "Gmail account (Billy Email 2)"
        }
      },
      "typeVersion": 2.1
    },
    {
      "id": "ec13f750-6015-4c17-b062-9036b0ae8697",
      "name": "网页抓取器表单提交",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        -160,
        0
      ],
      "webhookId": "a757a352-5ab2-4fa7-a8ee-08bb5d3448cc",
      "parameters": {
        "options": {},
        "formTitle": "Web Scraper Form",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Source URL"
            },
            {
              "fieldLabel": "Data to extract"
            }
          ]
        }
      },
      "typeVersion": 2.2
    },
    {
      "id": "1ed56fc9-5124-454c-8b4d-ee2c9e72076c",
      "name": "便签4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1100,
        -260
      ],
      "parameters": {
        "color": 4,
        "width": 380,
        "height": 760,
        "content": "# 👋 你好，我是 Billy！"
      },
      "typeVersion": 1
    },
    {
      "id": "4b1b75f3-95fa-4a42-8180-cb47ef7c3a02",
      "name": "便签",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -760,
        -80
      ],
      "parameters": {
        "color": 4,
        "width": 500,
        "height": 360,
        "content": "## 需要设置"
      },
      "typeVersion": 1
    },
    {
      "id": "35116b5c-c3ab-4c47-9914-c6cecdf3e3b4",
      "name": "便签1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -860,
        420
      ],
      "parameters": {
        "color": 4,
        "width": 600,
        "height": 400,
        "content": "## 🔍 使用表单输入、Gemini 2.5 flash 和 Gmail 投递提取特定网站数据"
      },
      "typeVersion": 1
    },
    {
      "id": "b1526d24-29c6-4552-8964-84953933494b",
      "name": "便签2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      ],
      "parameters": {
        "color": 4,
        "width": 1000,
        "height": 300,
        "content": "## 📋 工作流流程概览"
      },
      "typeVersion": 1
    },
    {
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      "name": "便签3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      ],
      "parameters": {
        "color": 4,
        "width": 400,
        "height": 560,
        "content": "## 数据提取器 LLM 链"
      },
      "typeVersion": 1
    },
    {
      "id": "e147282c-51f0-4f76-8416-bfeb00a47f64",
      "name": "便签5",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        800,
        -160
      ],
      "parameters": {
        "color": 4,
        "width": 260,
        "height": 340,
        "content": "## Gmail - 发送结果"
      },
      "typeVersion": 1
    },
    {
      "id": "adb7c780-8210-4dab-ad4f-9e7fc366cd16",
      "name": "Google Gemini 聊天模型",
      "type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
      "position": [
        440,
        200
      ],
      "parameters": {
        "options": {},
        "modelName": "models/gemini-2.5-flash"
      },
      "credentials": {
        "googlePalmApi": {
          "id": "gdaO8lU3HwsldifM",
          "name": "Google Gemini(PaLM) Api account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "25e49c2a-9018-4503-8ce1-a95699e9941c",
      "name": "HTML 提取器",
      "type": "n8n-nodes-base.html",
      "position": [
        220,
        0
      ],
      "parameters": {
        "options": {},
        "operation": "extractHtmlContent",
        "extractionValues": {
          "values": [
            {
              "key": "body",
              "cssSelector": "body"
            }
          ]
        }
      },
      "typeVersion": 1.2
    }
  ],
  "pinData": {},
  "connections": {
    "HTML Extractor": {
      "main": [
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            "node": "Data Extractor LLM Chain",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Data Extractor LLM Chain": {
      "main": [
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          {
            "node": "Gmail - Send Result",
            "type": "main",
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        ]
      ]
    },
    "Get HTML from source url": {
      "main": [
        [
          {
            "node": "HTML Extractor",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Gemini Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "Data Extractor LLM Chain",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
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    },
    "Structured Output Parser": {
      "ai_outputParser": [
        [
          {
            "node": "Data Extractor LLM Chain",
            "type": "ai_outputParser",
            "index": 0
          }
        ]
      ]
    },
    "Web Scraper form submission": {
      "main": [
        [
          {
            "node": "Get HTML from source url",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}