express设置get post put delete跨域访问.md

express设置所有方法法跨域访问

先上个小例子,大家运行体验下效果

var fs = require('fs')
var express = require('express')
var app = express()

app.all('*', function(req, res, next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Methods", "PUT,POST,GET,DELETE,OPTIONS");
    next();
});

var method = 'put'
app[method]('/mock/success', function(req, res) {
    var data = {
        "status": 1,
        "message": method + '成功!'
    };
    var json = JSON.stringify(data, null, 4);
    res.send(json);
});

app.listen(9000, function(err) {
    if (err) {
        console.log(err)
        return
    }
})

核心代码在这里

app.all('*', function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Methods", "PUT,POST,GET,DELETE,OPTIONS");
  res.header('Access-Control-Allow-Headers', 'token,Content-Type');
  next();
});

顺便捎带一个世界上最好的语言的版本

<?php
header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Methods: PUT,POST,GET,DELETE,OPTIONS");
print_r($_REQUEST);
?>