首先需要安装模块request，然后代码如下：

//模拟发送http请求
var request = require("request");

//get请求
request('http://www.baidu.com', function (error, response, body) {
    if (!error && response.statusCode == 200) {
        console.log(body) // Show the HTML for the baidu homepage.
    }
});

//post请求
request({
    url: "http://localhost:16908/api/SysFun/UserInfo/Login",
    method: "post",//如果是post就涉及到跨域的问题了
    json: true,
    headers: {
        "content-type": "application/json",
    },
    body: {
        account:'admin',
        pwd:'admin'
    }
}, function (error, response, body) {
    if (!error && response.statusCode == 200) {
        console.log(body);
    }
});