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// 导入expressconst express = require('express')// 创建应用对象const app = express()//设置跨域访问app.all('*', function(req, res, next) { res.header("Access-Control-Allow-Origin", "*"); res.header("Access-Control-Allow-Headers", "X-Requested-With"); res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS"); res.header("X-Powered-By",' 3.2.1') res.header("Content-Type", "application/json;charset=utf-8"); next();});// 创建路由规则app.post('/serve',(require,response) => { // 发送数据 const data = { success: 'success' } response.send(JSON.stringify(data))})// 监听端口启动服务app.listen(8888,() => { console.log('服务启动成功了！！！'); }) Document ajax发送请求
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