使用 puppeteer 从教务处爬取个人信息

main.ts

import * as puppeteer from "puppeteer";
import { Page } from "puppeteer";

/**
 * 登录
 * @param {string} username
 * @param {string} password
 * @returns {Promise<{code: number; data: {balance: string}; info: {}}>}
 */
async function login(username: string, password: string) {
  // 返回数据格式
  const result = {
    code: 400,
    data: {
      balance: "",
      info: {}
    },

  };
  const WHXYURL: string =
    "http://uia.whxy.edu.cn/cas/login?service=http%3A%2F%2Fportal.whxy.edu.cn%2Fc%2Fportal%2Flogin";

  const browser = await puppeteer.launch({
    // 设置Chromium位置
    executablePath: "D:\\Program Files (x86)\\Yarn\\chrome\\chrome.exe",
    env: {
      CHROME_PATH: puppeteer.executablePath()
    }
    // 是否显示浏览器
    // headless: false
    // devtools: true
  });

  const page = await browser.newPage();

  await page.goto(WHXYURL);

  await page.type("#username", username);
  await page.type("#password", password);

  await page.click(".login");

  // 一卡通余额
  try {
    await page.waitForSelector("#balance", {
      timeout: 1000
    });
    result.data.balance = await page.$eval(
      "#balance",
      element => element.innerHTML
    );
    result.code = 200;

    // 获取学生信息
    result.data.info = await getInfo(page);

    return result;
  } catch (e) {
    return result;
  } finally {
    await browser.close();
  }
}

/**
 * 获取学生信息
 * @param {Page} page
 * @returns {Promise<{name: string; sex: string; xy: string; zy: string; bj: string}>}
 */
async function getInfo(page: Page) {
  const info = {
    name: "",
    sex: "",
    // 学院
    xy: "",
    //  专业
    zy: "",
    // 班级
    bj: ""
  };

  // 教务系统 url
  const jwxt =
    "http://portal.whxy.edu.cn/web/guest/appcenter?p_p_id=jigsawAppFront_WAR_jigsawAppFrontportlet&p_p_lifecycle=0&p_p_state=pop_up&p_p_mode=view&p_p_col_id=column-1&p_p_col_count=1&_jigsawAppFront_WAR_jigsawAppFrontportlet_action=linkurl&_jigsawAppFront_WAR_jigsawAppFrontportlet_appid=125708";

  try {
    await page.goto(jwxt);
    // 出现重复登录，踢出其它登录
    await page.reload();
    await page.waitForSelector(".acitem", {
      timeout: 1000
    });
    // 学籍信息
    const stdDetail = "http://59.172.226.5/eams/stdDetail.action";
    await page.goto(stdDetail);
    info.name = await page.$eval(
      "#studentInfoTb tr:nth-child(2) td:nth-child(4)",
      elements => elements.textContent
    );
    info.sex = await page.$eval(
      "#studentInfoTb tr:nth-child(3) td:nth-child(4)",
      element => element.textContent
    );

    info.zy = await page.$eval(
      "#studentInfoTb tr:nth-child(7) td:nth-child(2)",
      element => element.textContent
    );
    info.xy = await page.$eval(
      "#studentInfoTb tr:nth-child(10) td:nth-child(2)",
      element => element.textContent
    );
    info.bj = await page.$eval(
      "#studentInfoTb tr:nth-child(12) td:nth-child(4)",
      element => element.textContent
    );
  } catch (e) {
    console.log(e);
  }

  return info;
}

login("2015*****", "Whxy27****").then(value => {
  console.log(value);
});