NodeJs实现简易WEB上传下载服务器

fs.mkdirSync(filePath);
return true;
}
}
}

var server = app.listen(20001,function(){

console.log('Server started.');
})

提供一个测试js代码..  浏览器通过get请求 http://127.0.0.1:20000/upload.do?filePath=XXXX即可触发上传过程

var express = require('express');
var url = require('url');
var fs = require('fs');
var http = require('http');
var queryString = require('querystring');
var bodyParser = require('body-parser');
var app = express();
app.use(bodyParser.json({limit:'1000kb'}));
app.use(bodyParser.urlencoded({limit:'1000kb',extended:true}));
var count=0;
app.get('/upload.do',function(req,resp){
 console.log('upload.do');
 //var path = url.parse(req.url).pathname;
 //console.log('Request for ' + path);
 var filePath = req.query.filePath;
 //var fileData = req.query.fileData;
 var address = req.query.address;
 upload(filePath,'127.0.0.1',20001);
 console.log('*** ' + ++count +' ***');
 var response = {
    "first":req.query.filePath,
    "last":req.query.address
  };
  resp.end(JSON.stringify(response));
});
function upload(filePath,address,port){
 var Data = readFile(filePath);
 var dataBase64 = Data.toString('base64');
 console.log(Data);
 console.log(dataBase64);
 //var DataJSON = JSON.stringify(Data);
 //fs.writeFile('D:/input.txt',dataBase64,function(err){
 // if(err){
 // console.err(err);
 // }
 //});
 var JsonData = queryString.stringify({
 filePath:filePath,
 fileData:dataBase64
 });
 //console.log(JsonData);
 var options = {
 method: "POST",
 host : address,
 port : port,
 path : '/upload.node',
 headers: {
  'Content-Type':'application/x-www-form-urlencoded'
 }
 };
 var req = http.request(options, function(res){
  res.setEncoding('utf8');
 });
 req.write(JsonData);
 req.end();
}
function readFile(filePath){
 var fileData = '';
 try{
 fileData = fs.readFileSync(filePath);
 }catch(e){
 fileData = '';
 }
 return fileData;
}
app.post('/download.do',function(req,resp){
 //可直接参考server.js的代码
})
var server = app.listen(20000,function(){
 console.log('Server started.');
})

这仅仅是一个简易的Nodejs程序，直接用此程序去压测，得到结果是每秒可处理八十多个请求，基本上能满足现在的需求，还有很多改进的地方，比如加入缓存，队列….等等。

对于NodeJs本人也只是学到了一点皮毛，还有很多知识点没去探究。大家看看就行。