在nodejs中,一般一个js文件作为一个模块,最后以 module.exports = xxx; 结尾;就可以在其他文件引用了,我这里有自定义模块代码如下
const puppeteer = require('puppeteer'); class Craw { constructor() { } async init() { this.browser = await puppeteer.launch({ headless: false // 关闭无头模式 }); this.page = (await this.browser.pages())[0] } } module.exports = Craw;
这是一个puppeteer,准备做一个请求主动探测,作为一个漏扫工具的一部分;然后想在其他模块中调用,调用模块代码如下
const Craw = require('./libs/craw') (async () => { const craw1 = new Craw(); await craw1.init(); })();
但是问题来了,这时候竟然报错了一脸的黑人问号!!!!
报错如下:
"D:Program Files odejs ode.exe" F:GoProjectswordscandockerpupcrawmain.js F:GoProjectswordscandockerpupcrawmain.js:3 (async () => { ^ TypeError: Class constructor Craw cannot be invoked without 'new' at Object.<anonymous> (F:GoProjectswordscandockerpupcrawmain.js:3:1) at Module._compile (internal/modules/cjs/loader.js:1256:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1277:10) at Module.load (internal/modules/cjs/loader.js:1105:32) at Function.Module._load (internal/modules/cjs/loader.js:967:14) at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:60:12) at internal/main/run_main_module.js:17:47 Process finished with exit code 1
各种问题各种找;最后发现,在 const Craw = require('./libs/craw') 后边加上分号结尾,竟然好了;
由于不经常写node代码,对这个不是太熟悉;谨以此作为记录