NODEJS 上传文件

index.js 文件实现路由以及功能实现。

var http = require("http");
var url = require("url");
var querystring = require("querystring");
var port = 8888;
function start(route, handle) {
	function onRequest(request, response) {
		var postData = "";
		var pathname = url.parse(request.url).pathname;
		console.log("Request:" + pathname + " received.");
		var ret = route(request, handle, pathname, response);
	}
	http.createServer(onRequest).listen(port);
	console.log("Server has started.");
}

function route(request, handle, pathname, response) {
	console.log("About to route a request for " + pathname);
	if (typeof handle[pathname] === 'function') {
		handle[pathname](request, response);
	} else {
		console.log("No request handler found for " + pathname);
		response.writeHead(404, {
			"Content-Type" : "text/plain"
		});
		response.write("404 Not found");
		response.end();
	}
}
function start_handler(request, response) {
	console.log("No request handler found for ");
	var body = '' +
	'' + 
	'' + 
	'' + '' + 
	'
' + 
	'' + 
	'' + 
	'
' + 
	'' + 
	'';
	response.writeHead(200, {
		"Content-Type" : "text/html"
	});
	response.write(body);
	response.end();

}
function upload_handler(request, response) {
	console.log("Request handler 'upload' was called.");
	var fs = require("fs");
	var formidable = require("formidable");
	var form = new formidable.IncomingForm();
	form.uploadDir = "tmp";
	console.log("about to parse");
	form.parse(request, function (error, fields, files) {
		console.log("parsing done");
		console.log(files.upload);
		console.log(files.upload.path);
		fs.renameSync(files.upload.path, "tmp/test"); //文件操作rename操作必须是同一个逻辑分区。否则会Rename失败
		response.writeHead(200, {
			"Content-Type" : "text/html"
		});
		response.write("received image:
");
		response.write("");
		res.end(sys.inspect({
				fields : fields,
				files : files
			}));
		response.end();
	});
}
function show_handler(request, response) {
	console.log("Request handler 'show' was called.");
	var fs = require("fs");
	fs.readFile("tmp/test", "binary", function (error, file) {
		if (error) {
			response.writeHead(500, {
				"Content-Type" : "text/plain"
			});
			response.write(error + "\n");
			response.end();
		} else {
			response.writeHead(200, {
				"Content-Type" : "image"
			});
			response.write(file, "binary");
			response.end();
		}
	});
}
exports.start = start;
exports.route = route;
exports.start_handler = start_handler;
exports.upload_handler = upload_handler;
exports.show_handler = show_handler;

app.js 创建Server实例。

var server = require("./start");
//var router = require("./router");

//server.start(server.route);
//var requestHandlers = require("./start");

var handle = {}
handle["/"] = server.start_handler;
handle["/start"] = server.start_handler;
handle["/upload"] = server.upload_handler;
handle["/show"] = server.show_handler;

server.start(server.route, handle);