Node入门 √
http://www.nodebeginner.org/index-zh-cn.html
index.js
var server = require("./server")
var router = require("./router")
var requestHandlers = require("./requestHandlers")
var handle = {}
handle["/"] = requestHandlers.start
handle["/start"] = requestHandlers.start
handle["/upload"] = requestHandlers.upload
server.start(router.route, handle)
server.js 服务器
var http = require("http")
var url = require("url")
function start(route, handle) {
function onRequest(request, response) {
var postData = ""
var pathname = url.parse(request.url).pathname
console.log("Request for " + pathname + " received.")
request.setEncoding("utf8")
request.addListener("data", function(postDataChunk) {
postData += postDataChunk
console.log("Received POST data chunk '" + postDataChunk + "'.")
})
// 监听 /start /upload 的请求，/start 没有post也有end
request.addListener("end", function() {
route(handle, pathname, response, postData)
})
}
http.createServer(onRequest).listen(8888)
console.log("Server has started.")
}
exports.start = start
router.js 路由
function route(handle, pathname, response, postData) {
console.log("About to route a request for " + pathname)
if (typeof handle[pathname] === 'function') {
handle[pathname](response, postData)
} else {
console.log("No request handler found for " + pathname)
response.writeHead(404, {"Content-Type": "text/plain"})
response.write("404 Not found")
response.end()
}
}
exports.route = route
requestHandlers.js 请求处理程序
var querystring = require("querystring")
function start(response, postData) {
console.log("Request handler 'start' was called.")
var body = '<!doctype html>' +
'<html lang="zh-CN">' +
'<head>' +
'<meta charset="utf-8">' +
'<title></title>' +
'</head>' +
'<body>' +
'<form action="/upload" method="post">' +
'<input name="title" type="text">' +
'<textarea name="description"></textarea>' +
'<input type="submit" value="Submit text">' +
'</form>' +
'</body>' +
'</html>'
response.writeHead(200, {"Content-Type": "text/html"})
response.write(body)
response.end()
}
function upload(response, postData) {
var body = '<!doctype html>' +
'<html lang="zh-CN">' +
'<head>' +
'<meta charset="utf-8">' +
'<title></title>' +
'</head>' +
'<body>' +
querystring.parse(postData).title +
querystring.parse(postData).description +
'</body>' +
'</html>'
console.log("Request handler 'upload' was called.")
response.writeHead(200, {"Content-Type": "text/html"})
response.write(body)
response.end()
}
exports.start = start
exports.upload = upload