我如何知道哪个请求属于node.js中的部分数据

Question

I have the node.js server below. Suppose that multiple clients make a POST request. But these will share the same variable body and the final string will become meaningless. Is is possible to identify a request by id or something? All I have is request.headers, but that does not contain any unique information.

var http = require("http");
var server = http.createServer();

server.on("request", onRequest);
server.listen(8001, "127.0.0.1");

function onRequest(request, response) // assuming "POST"
{
    var body = "";

    request.on("data", function (data) { body = body + data; });
    request.on("end", function () { console.log(body); });
}

Answer 1

通常，函数会继承作用域（从其父级继承），因此将为每个请求正确地串联每个body变量。