Question

像这样的简单Nodejs服务器

var express = require('express'), app = express();
var bodyParser = require('body-parser');

app.use(function(req, res, next){
        res.header("Access-Control-Allow-Origin", "http://localhost:9877");
        res.header("Access-Control-Allow-Headers", "Content-Type");
        res.header("Access-Control-Allow-Methods", "GET, POST");
        res.header("Access-Control-Allow-Credentials", "false");
    /** When Using XMLHttpRequest, set true
     *  XDomainRequest, set false
     */
        next();
});

app.use(bodyParser.text());

app.get('/', function(req, res){
    console.log("GET METHOD")
    console.log(req.body)
    res.send(200);
});

app.post('/e8', function(req, res){
    console.log("POST METHOD")
    console.log(req.body)
    res.send(200);
});

app.listen(3001, function(){
    console.log('CORS-enabled web server listening on port 3001');
});

服务器能够接收XMLHttpRequest请求主体，但不能接收XDomainRequest的主体。

可能导致什么问题？

两个客户端都使用文本/普通标头，如xhr.setRequestHeader('Content-Type', 'text/plain')，而XDomainRequest只能使用text / plain，默认标头。

编辑1：添加我的客户端代码

//XDR
var xdr = new XDomainRequest();

  xdr.onload = function() {
    console.log("ON LOAD")
  }

  xdr.open('POST',url);

  xdr.onprogress = function () {
    console.log("ON PROGRESS")
  };
  xdr.timeout=2000
  xdr.ontimeout = function () {
    console.log("TimeOut")
  };

  xdr.onerror = function () {
    console.log("ON ERROR")
  };

  xdr.send(JSON.stringify(myData));



//XHR
const xhr = new XMLHttpRequest()

  xhr.onreadystatechange = function (event) {
    if (xhr.readyState === 4 /** responseText is not available yet */) {
      const statusCode = xhr.status
      const responseText = xhr.responseText
      //some code
    }
  }

  xhr.open('POST', url, true)
  xhr.setRequestHeader('Content-Type', 'text/plain')
  xhr.withCredentials = true 
  xhr.timeout = 2000 
  xhr.ontimeout = function (event) {
   console.log("TIMEOUT")
  }

  xhr.send(JSON.stringify(myData))

NODEJS服务器无法接收XDomainRequest的请求体

0 个答案: