【NodeJS】跨域

【NodeJS】跨域

转载：https://www.cnblogs.com/yangchongxing/p/10635480.html

var express = require('express');
var 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", "Origin, X-Requested-With, Content-Type, Accept");
  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();
});

app.get('/api', function (req, res) {
    var data = { name : 'alice', age : 222 };
    res.send(JSON.stringify(data));
})
 
var server = app.listen(9090, function () {
  console.log("访问地址为 http://localhost:9090/api");
})