express再学习

var express = require("express");
var http = require("http");
var path = require("path");
var logger = require("morgan");


var app = express();
var publicPath = path.resolve(__dirname, "public");

app.set("views", path.resolve(__dirname, "views"));
app.set("view engine", "ejs");
app.use(express.static(publicPath));
app.use(logger("short"));

app.get("/", function(request, response) {
    response.render("index", {
        message: "Hey everyone! This is my webpage."
    });
});

app.get("/about", function(request, response) {
    response.end("Welcome to my aboutpage!");
});

app.get("/weather", function(request, response) {
    response.end("The current weather is NICE!");
});

app.get("/user/:who", function(request, response) {
    response.end("Hello, " + request.params.who + ".");
});

app.use(function(request, response) {
    response.statusCode = 404;
    response.end("404!");
});

http.createServer(app).listen(3000);