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- /* eslint-disable strict */
- // const svgCaptcha = require('svg-captcha');
- // const cheerio = require('cheerio');
- // const puppeteer = require('puppeteer');
- const charset = require('superagent-charset');
- const superagent = charset(require('superagent'));
- const cheerio = require('cheerio');
- const fs = require('fs');
- const { CrudService } = require('naf-framework-mongoose/lib/service');
- class CreeperjlsyService extends CrudService {
- async creeper() {
- // 目标链接 吉林省教师招聘网第一页
- const targetUrl = 'http://www.zgsydw.com/jilin/jiaoshi/index.html';
- const columnTitle = '吉林省教师招聘';
- // 查看是否有这个栏目,没有则创建一个
- let column = await this.service.column.model.find({ news_type: '0', title: columnTitle });
- if (column.length === 0) {
- column = await this.service.column.model.create({ site: '99991', news_type: '0', title: columnTitle, type: '', parent_id: '', parent: '', is_use: '' });
- } else {
- column = column[0];
- }
- await this.creeperCreate(targetUrl, column);
- }
- // 输入路径返回文本
- async creeperCreate(targetUrl, column) {
- // 目标链接 吉林省人事考试网第一页
- // 用来暂时保存解析到的内容和图片地址数据
- const hrefOld = targetUrl;
- const hrefAdd = 'http://www.zgsydw.com';
- const uri = '';
- // const imgs = [];
- // 创建附件文件夹(暂定直接跳到该网站下载)
- // this.mkdir('./attachment');
- // 发起请求
- superagent.get(targetUrl).charset('gbk').buffer(true)
- .end((error, res) => {
- if (error) { // 请求出错,打印错误,返回
- console.log(error);
- return;
- }
- // cheerio需要先load html
- const $ = cheerio.load(res.text);
- // 循环列表,获取标题、a标签路径、日期,然后根据a标签路径再次进行爬出内容、保存即可
- $('.ggxx_nr ul li').each((index, element) => {
- // 这些数据都是存放在news中的
- const title = $(element).find('a').attr('title');
- const thisHref = $(element).find('a').attr('href');
- const time = $(element).find('span').text();
- // 这里可以给时间做判断当前日期(如果需要的话可以做为判断条件)
- const nowDate = new Date().toLocaleDateString();
- if (time !== nowDate) {
- // 为undefined时,不需要进行下一步了
- if (thisHref !== undefined) {
- // 请求内容
- superagent.get(thisHref).charset('gbk').buffer(true)
- .end((error, res) => {
- if (error) { // 请求出错,打印错误,返回
- console.log(error);
- return;
- }
- const $ = cheerio.load(res.text);
- // 获取内容保存
- // const content = $(element).children('table').clone();
- const content = $('.con_l_list').text();
- // content.find(':nth-child(n)').remove();
- // console.log(content.text());
- // 内容中存在翻页可能
- const href = $('.lb_page a').attr('href');
- if (href !== undefined) {
- this.nextPage(href);
- }
- const attachment = [];
- // 查看内容是否有翻页
- // 每页都查询是否有附件存在,如果有,下载到本地,保存即可
- $('p a').each((index, element) => {
- const thisHref = $(element).attr('href');
- if (thisHref.substring(0, 4) !== 'http') {
- const url = uri + thisHref;
- const fileName = $(element).text();
- // console.log(fileName);
- // console.log(uri);
- // const filepath = this.downloadAttachment(url, fileName);
- const file = {
- name: fileName,
- uri: url,
- };
- attachment.push(file);
- }
- });
- // const news = this.service.news.model.create({
- // site: column.site,
- // title,
- // pic: '',
- // content,
- // type: '',
- // parent_id: column.id,
- // parent: column.title,
- // publish_time: publishTime,
- // attachment,
- // is_use: '0'
- // });
- });
- }
- }
- });
- // 点击下一页
- const href = $('#DivPageControl a').eq(2).attr('href');
- const hrefNew = hrefAdd + href;
- // 第一次路径与第二次路径比较,相同,就不需要调自己了
- if (hrefNew !== hrefOld) {
- // this.creeperCreate(hrefNew, column);
- // over
- }
- });
- }
- async nextPage(href) {
- superagent.get(href).charset('gbk').buffer(true)
- .end((error, res) => {
- if (error) { // 请求出错,打印错误,返回
- console.log(error);
- return;
- }
- const $ = cheerio.load(res.text);
-
- });
- }
- }
- module.exports = CreeperjlsyService;
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