javascript - 将 HTML 响应转换为数组或 NodeJS 中的对象

Question

我编写了一个 Express 服务器，它可以访问 Zaubacorp.com API 并得到以下结果。结果是一个字符串

API 结果:

                <div class="show" align="left" id="company/CHOUDH/U65999MP1985PTC003043">CHOUDH </div>

                <div class="show" align="left" id="company/CHOPRA/U45201CT1982PTC001899">CHOPRA </div>

                <div class="show" align="left" id="company/CHOUDH/U72200UP1996PLC019258">CHOUDH </div>

                <div class="show" align="left" id="company/CHOROSEN-LIMITED/U99999MH1955PLC009659">CHOROSEN LIMITED </div>

                <div class="show" align="left" id="company/CHOLAI-FOUNDATION/U85300TN2019NPL127317">CHOLAI FOUNDATION </div>

现在，在获得 API 后，我需要将其发送到 React 前端。我需要从中提取特定值，例如 ID 和公司名称，并将其发送到 ReactJS 前端。我无法从给定的字符串格式中提取值。

这是我的 Express Controller

post_a_product =  async (req, res, next)=>{
    console.log(req.body.query);
    const query = {
        "search": req.body.query,
        "filter":"company"
    }
   var result = await axios.post("https://www.zaubacorp.com/custom-search", query)

    stringData = result.data
try {
    console.log('====================================');
    console.log(stringData);
    console.log('====================================');

} catch (error) {
    console.error(error)
}
    res.end("We have sent the response")

如何以某种格式从给定字符串中提取 ID 和公司名称以发送到前端？

Answer 1

您需要使用一些 html 解析器。其中之一是 https://www.npmjs.com/package/node-html-parser 。代码如下所示

const {parse} = require('node-html-parser');
console.log(JSON.stringify(parse(result.data)));

响应将是一个正确的 JSON，例如

{
    "childNodes": [{
        "childNodes": [{
            "childNodes": [],
            "nodeType": 3,
            "rawText": "CHOUDH "
        }],
        "tagName": "div",
        "rawAttrs": "class=\"show\" align=\"left\" id=\"company/CHOUDH/U65999MP1985PTC003043\"",
        "parentNode": null,
        "classNames": ["show"],
        "nodeType": 1,
        "id": "company/CHOUDH/U65999MP1985PTC003043"
    }, {
        "childNodes": [],
        "nodeType": 3,
        "rawText": "\n\t\t\t\t\t\t\t\n\t\t\t\t"
    }, {
        "childNodes": [{
            "childNodes": [],
            "nodeType": 3,
            "rawText": "CHOPRA "
        }],
        "tagName": "div",
        "rawAttrs": "class=\"show\" align=\"left\" id=\"company/CHOPRA/U45201CT1982PTC001899\"",
        "parentNode": null,
        "classNames": ["show"],
        "nodeType": 1,
        "id": "company/CHOPRA/U45201CT1982PTC001899"
    }, {
        "childNodes": [],
        "nodeType": 3,
        "rawText": "\n\t\t\t\t\t\t\t\n\t\t\t\t"
    }, {
        "childNodes": [{
            "childNodes": [],
            "nodeType": 3,
            "rawText": "CHOUDH "
        }],
        "tagName": "div",
        "rawAttrs": "class=\"show\" align=\"left\" id=\"company/CHOUDH/U72200UP1996PLC019258\"",
        "parentNode": null,
        "classNames": ["show"],
        "nodeType": 1,
        "id": "company/CHOUDH/U72200UP1996PLC019258"
    }, {
        "childNodes": [],
        "nodeType": 3,
        "rawText": "\n\t\t\t\t\t\t\t\n\t\t\t\t"
    }, {
        "childNodes": [{
            "childNodes": [],
            "nodeType": 3,
            "rawText": "CHOROSEN LIMITED "
        }],
        "tagName": "div",
        "rawAttrs": "class=\"show\" align=\"left\" id=\"company/CHOROSEN-LIMITED/U99999MH1955PLC009659\"",
        "parentNode": null,
        "classNames": ["show"],
        "nodeType": 1,
        "id": "company/CHOROSEN-LIMITED/U99999MH1955PLC009659"
    }, {
        "childNodes": [],
        "nodeType": 3,
        "rawText": "\n\t\t\t\t\t\t\t\n\t\t\t\t"
    }, {
        "childNodes": [{
            "childNodes": [],
            "nodeType": 3,
            "rawText": "CHOLAI FOUNDATION "
        }],
        "tagName": "div",
        "rawAttrs": "class=\"show\" align=\"left\" id=\"company/CHOLAI-FOUNDATION/U85300TN2019NPL127317\"",
        "parentNode": null,
        "classNames": ["show"],
        "nodeType": 1,
        "id": "company/CHOLAI-FOUNDATION/U85300TN2019NPL127317"
    }],
    "tagName": null,
    "rawAttrs": "",
    "parentNode": null,
    "classNames": [],
    "nodeType": 1,
    "valid": true
}

这里有您需要的所有必要信息。希望这会有所帮助。