方法一:NodeJS+Express解决跨域问题:Access-Control-Allow-Origin
在app.js中设置如下:
// 允许跨域访问
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();
});
方法二:通过使用cors模块解决跨域问题
var express = require('express')
, cors = require('cors')
, app = express();
app.use(cors());
app.get('/products/:id', function(req, res, next){
res.json({msg: 'This is CORS-enabled for all origins!'});
});
app.listen(80, function(){
console.log('CORS-enabled web server listening on port 80');
});