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credit.js
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credit.js
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const puppeteer = require('puppeteer');
// 爬学分制
const url = 'http://credit.stu.edu.cn/english/setlocale.aspx?locale=zh-cn';
// 输入账号
// let username = '';
// 输入密码
// let password = '';
const puppeteerBrowser = puppeteer.launch({ ignoreHTTPSErrors: true });
function login(username, password) {
/**
* 参数类型:字符串
* 返回一个promise对象
*/
const message = [
{ retcode: '010201', msg: '✅登录成功💯' },
{ retcode: '010202', msg: '未连接网络或未连接内网' },
{ retcode: '010203', msg: '账号/密码错误' },
{ retcode: '010204', msg: '网络连接超时' }
];
let p1 = new Promise((resolve, reject) => {
puppeteerBrowser.then(async browser => {
const page = await browser.newPage();
try {
// console.time('page.goto()用时:');
await page.goto(url);
await page.on('dialog', value => {
reject(message[2]);
});
// console.timeEnd('page.goto()用时:');
// const loginUrl = await page.url();
// console.time('登录及验证用时:');
await page.type('#txtUserID', username);
await page.type('#txtUserPwd', password);
// await page.click('#btnLogon');
// await page.waitFor(100);
await Promise.all([
page.waitForNavigation(),
page.click('#btnLogon'),
]);
resolve(message[0]);
// const loginedUrl = await page.url();
// if (loginUrl !== loginedUrl) {
// resolve(message[0]);
// } else {
// reject(message[2]);
// }
// console.timeEnd('登录及验证用时:');
} catch (err) {
reject(message[1]);
} finally {
await page.close();
}
});
});
let p2 = new Promise((resolve, reject) => {
setTimeout(reject, 7000, message[3]);
});
return Promise.race([p1, p2])
.then(value => {
return value;
})
.catch(value => {
return value;
});
}
// 调用函数
// login(username, password).then(value => {
// console.log(value);
// });
module.exports = login;