[英]Send ajax request to remote node.js server
我有簡單的nodejs服務器(包括CORS):
var express = require('express');
var app = express();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var port = 8001;
http.listen(port,function () {
console.log('listening on:'+ port);
});
app.use(function (req, res, next) {
res.setHeader('Access-Control-Allow-Origin', 'http://localhost:8000');
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');
res.setHeader('Access-Control-Allow-Credentials', true);
next();
});
app.post('/getSockets', function (req,res,next) {
console.log(req.body);
});
和簡單的ajax請求
$.ajax({
type: "POST",
url: "http://localhost:8001/getSockets",
data: "Hello world",
success: function (data, textStatus, XMLHttpRequest) {
console.log(data);
console.log("success!");
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
console.log(XMLHttpRequest.status);
}
});
但是我有一個錯誤404,找不到localhost:8001 / getSockets
404錯誤表示網址不存在或無法訪問
更改此行:
res.setHeader('Access-Control-Allow-Origin', 'http://localhost:8000');
對此:
res.setHeader('Access-Control-Allow-Origin', 'http://localhost:8001');
您只允許ajax請求訪問端口8000
上的資源,您應該將其更改為8001
或不指定端口。
res.setHeader('Access-Control-Allow-Origin', 'http://localhost:8000');
另請參閱將CORS與端口配合使用
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