const Router = require("koa-router"); const baiduRouter = new Router(); const axios = require("axios"); const { get, set, del } = require("../utils/cacheData"); // 接口信息 const routerInfo = { name: "baidu", title: "百度", subtitle: "热搜榜" }; // 缓存键名 const cacheKey = "baiduData"; // 调用时间 let updateTime = new Date().toISOString(); // 调用路径 const url = "https://top.baidu.com/board?tab=realtime"; // 数据处理 const getData = (data) => { if (!data) return []; const dataList = []; try { const pattern = //s; const matchResult = data.match(pattern); const jsonObject = JSON.parse(matchResult[1]).cards[0].content; jsonObject.forEach((v) => { dataList.push({ title: v.query, desc: v.desc, pic: v.img, hot: Number(v.hotScore), url: `https://www.baidu.com/s?wd=${encodeURIComponent(v.query)}`, mobileUrl: v.url, }); }); return dataList; } catch (error) { console.error("数据处理出错" + error); return false; } }; // 百度热搜 baiduRouter.get("/baidu", async (ctx) => { console.log("获取百度热搜"); try { // 从缓存中获取数据 let data = await get(cacheKey); const from = data ? "cache" : "server"; if (!data) { // 如果缓存中不存在数据 console.log("从服务端重新获取百度热搜"); // 从服务器拉取数据 const response = await axios.get(url); data = getData(response.data); updateTime = new Date().toISOString(); if (!data) { ctx.body = { code: 500, ...routerInfo, message: "获取失败", }; return false; } // 将数据写入缓存 await set(cacheKey, data); } ctx.body = { code: 200, message: "获取成功", ...routerInfo, from, total: data.length, updateTime, data, }; } catch (error) { console.error(error); ctx.body = { code: 500, message: "获取失败", }; } }); // 百度热搜 - 获取最新数据 baiduRouter.get("/baidu/new", async (ctx) => { console.log("获取百度热搜 - 最新数据"); try { // 从服务器拉取最新数据 const response = await axios.get(url); const newData = getData(response.data); updateTime = new Date().toISOString(); console.log("从服务端重新获取百度热搜"); // 返回最新数据 ctx.body = { code: 200, message: "获取成功", ...routerInfo, total: newData.length, updateTime, data: newData, }; // 删除旧数据 await del(cacheKey); // 将最新数据写入缓存 await set(cacheKey, newData); } catch (error) { // 如果拉取最新数据失败,尝试从缓存中获取数据 console.error(error); const cachedData = await get(cacheKey); if (cachedData) { ctx.body = { code: 200, message: "获取成功", ...routerInfo, total: cachedData.length, updateTime, data: cachedData, }; } else { // 如果缓存中也没有数据,则返回错误信息 ctx.body = { code: 500, ...routerInfo, message: "获取失败", }; } } }); baiduRouter.info = routerInfo; module.exports = baiduRouter;