Question

我的Visual Studio两个项目1中的一个解决方案是mvc4项目，而2是node js项目。我试图获取节点js项目中对象的数据，并且在我的mvc项目的前端页面中调用此函数... 例如第一个项目端口是http://localhost:1011-这是mvc项目第一个项目端口是http://localhost:3215-这是节点js项目

在我的点击按钮事件前端中进行了jquery调用

从原点“ http://localhost:3215/?Id=8014”到“ http://localhost:1011”的XMLHttpRequest的访问已被CORS策略阻止：所请求的资源上没有“ Access-Control-Allow-Origin”标头。请建议我如何解决此错误.....

jquery：-

 function abctest(Id) {
        alert(1);
        $.ajax({
            type: 'GET',
            url: 'http://localhost:3215',
            timeout: 3000,
            dataType: 'application/json',
            data: {Id:Id},
            success: function (data) {
                //show content
                alert('Success!')
            },
            error: function (Error) {
                alert(Error);
            }
        });
    }

server.js：-

var express = require('express');
let $ = jQuery = require('jquery');
var app = express();
var libraryData;
var cust_dynamicdata;
global.abcdObj = { projectDir: __dirname };

var server = app.listen(3215, function () {
    console.log('Server is running..');
});
app.get('/', function (req, response) {
    libraryData = require(__dirname + '/build/Release/mylib');
    cust_dynamicdata= new libraryData.abc(__dirname + "/");
    response.send('test');
});
app.use(function (req, res, next) {
    // Website you wish to allow to connect
    res.setHeader('Access-Control-Allow-Origin', 'http://localhost:1011');

    // Request methods you wish to allow
    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');

    // Request headers you wish to allow
    res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');

    // Set to true if you need the website to include cookies in the requests sent
    // to the API (e.g. in case you use sessions)
    res.setHeader('Access-Control-Allow-Credentials', true);

    // Pass to next layer of middleware
    next();
});

已被CORS政策封锁：所要求的资源上没有'Access-Control-Allow-Origin'标头

0 个答案: