//http://www.nodebeginner.org/index-zh-cn.html#how-our-server-handles-requests 按照这个页面的例子写的，留作笔记 //index.js var server = require('./server');var route = require('./routes');var requestHandlers = require("./requestHanlders");var handle = {};handle["/"] = requestHandlers.start;handle["/start"] = requestHandlers.start;handle["/upload"] = requestHandlers.upload;handle["/show"] = requestHandlers.show;server.start( route.route ,handle)

 

//server.js 基本的逻辑都在这边

var http = require('http');var url = require('url');function start( route, handle ){    http.createServer( function(request, response){        var pathname = url.parse( request.url).pathname;        console.log( pathname );        var postData = "";/*        request.setEncoding("utf8");        request.addEventListener('data',function(chunk){            postData += chunk;        });        request.addEventListener('end',function(){            route(handle, pathname, response ,postData)        });*/        request.setEncoding("utf8");        //addEventListener ？ addListener        request.addListener("data", function(postDataChunk) {            postData += postDataChunk;            console.log("Received POST data chunk '"+                postDataChunk + "'.");        });        request.addListener("end", function() {            route(handle, pathname, response, postData);        });        //route( handle ,pathname ,response);        /*        response.writeHead(            200,            {                "Content-Type" : "text/plain"            }        );        response.write(data);        response.end();        console.log(' server is open');        */    } ).listen(8000);};exports.start = start

 

//传数据到route文件

function route( handle, pathname ,response, postData){    console.log( "route a " + pathname );    if( typeof handle[pathname] === 'function'){        return handle[pathname]( response ,postData );    }else{        console.log('no Request')        return "404 NOT FOUND"    }};exports.route = route;

 

//展示结果页面的主要业务神马的

var querystring = require("querystring");var fs = require("fs");function start( response ,postData){    console.log("request handler start")     var body = ''+        ''+        '
     '+        ''+        ''+        '
     
      '+        '
      '+        '
      '+        '
     
'+        ''+        '';        response.writeHead(200, {"Content-Type": "text/html"});        //response.writeHead(200, {"Content-Type": "text/plain"});        response.write(body);        response.end();};function upload( response ,postData){    console.log("request handler upload");    console.log( postData )    response.writeHead("200",{        "Content-Type" : "text/html"    });    response.write( querystring.parse(postData).text );    response.end()};function show(response, postData){    console.log('request img');    fs.readFile('./1.png','binary',function(err, data){        if(err){            response.writeHead(200,{                "Content-Type" : "text/html"            });            response.write('err');            response.end();        }else{            response.writeHead(200,{                "Content-Type" : "image/png"                //"Content-Type" : "image/png"            });            response.write(data,'binary');            response.end();        }    })}exports.start = start;exports.upload = upload;exports.show = show;