web 服务器 post请求 

var http = require("http");
var fs = require("fs");
var querystring = require("querystring");

var server = http.createServer(function (request, response) {

    var url = request.url;
    if (url === "/login") {
        response.writeHead(200, { "Content-type": "text/html" })
        var stream = fs.createReadStream(__dirname + "/login.html", "utf-8");
        stream.pipe(response);
    }

    var data = "";
    request.on("error", function (err) {
        console.log(err)
    }).on("data", function (res) {
        data += res;
    }).on("end", function () {

        var method = request.method;
        console.log(method);
        if (method.toLowerCase() === "post") {
            if (method.length > 1e6) {
                request.connection.destroy();
            }
            var dataobj = querystring.parse(data.toString());

            var username = dataobj.username;
            var userpass = dataobj.userpass;

            if (username === "admin" && userpass === "123") {

                response.writeHead(200, { "Content-type": "text/html" })
                var stream = fs.createReadStream(__dirname + "/home.html", "utf-8");
                stream.pipe(response);
            }
        }
    });
});

server.listen(4000, "127.0.0.1");

server.on("error", function (e) {

    if (e.code == "EADDRINUSE") {
        console.log("in error")
        setTimeout(function () {
            server.close();
            server.listen(4000, "127.0.0.1")
        }, 1000);
    }
})

console.log("server has started")
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>login</title>
</head>

<body>
    <form action="/home" method="post">

        <input type="text" name="username" /><br>
        <input type="text" name="userpass" /><br>
        <input type="submit" name="submit" value="提交" />
    </form>
</body>

</html>

 

posted @ 2019-11-21 17:14  进阶的哈姆雷特  阅读(474)  评论(0)    收藏  举报