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iboard/scripts/scraper/sow-inventory-scraper.js
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2026-08-03 18:09:08 +08:00

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JavaScript

const axios = require('axios');
const cheerio = require('cheerio');
const fs = require('fs');
const path = require('path');
const { PrismaClient } = require('../../generated/prisma');
const prisma = new PrismaClient();
// 浙江数据开放网站URL(示例,实际需要根据真实网站修改)
const ZHEJIANG_OPEN_DATA_URL = 'https://data.zj.gov.cn/';
// 能繁母猪数量数据爬取函数
async function scrapeSowInventory() {
try {
console.log('开始爬取浙江省能繁母猪数量数据...');
// 1. 发送HTTP请求获取页面内容
const response = await axios.get(ZHEJIANG_OPEN_DATA_URL, {
headers: {
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
}
});
// 2. 解析HTML内容
const $ = cheerio.load(response.data);
// 3. 提取数据(这里需要根据实际网站结构修改选择器)
// 示例:假设数据在表格中
const data = [];
$('table').each((tableIndex, table) => {
$(table).find('tr').each((rowIndex, row) => {
if (rowIndex > 0) { // 跳过表头
const cells = $(row).find('td');
if (cells.length >= 2) {
const month = $(cells[0]).text().trim();
const inventory = parseInt($(cells[1]).text().trim());
if (month && !isNaN(inventory)) {
data.push({
month,
inventory
});
}
}
}
});
});
console.log(`爬取到 ${data.length} 条数据`);
// 4. 存储数据到数据库
for (const item of data) {
try {
// 检查数据是否已存在
const existing = await prisma.econ_SowInventory.findUnique({
where: { month: item.month }
});
if (existing) {
// 更新现有数据
await prisma.econ_SowInventory.update({
where: { month: item.month },
data: { inventory: item.inventory }
});
console.log(`更新数据: ${item.month} - ${item.inventory}`);
} else {
// 创建新数据
await prisma.econ_SowInventory.create({
data: item
});
console.log(`新增数据: ${item.month} - ${item.inventory}`);
}
} catch (error) {
console.error(`处理数据 ${item.month} 时出错:`, error.message);
}
}
console.log('数据爬取和存储完成!');
} catch (error) {
console.error('爬取数据时出错:', error.message);
} finally {
// 关闭Prisma连接
await prisma.$disconnect();
}
}
// 导出函数
module.exports = { scrapeSowInventory };
// 如果直接运行此文件
if (require.main === module) {
scrapeSowInventory();
}