node.js中express模块创建服务器和http模块客户端发请求

var express = require("express");var path = require("path");var app = express();//目录  (当前目录下的www_root目录)app.use(express.static(path.join(process.cwd(),"www_root")));//监听var server = app.listen(6080);app.get('/', function (req, res) {  //发送数据  res.send('Hello World ~~~~~~~~~~~~!'); });// get, 处理响应app.get("/login", function (request, respones) { console.log("/login comming");  // 服务器收到请求后，获取客户端get操作参数 console.log(request.query); // 服务器回信息给客户端 respones.send("已连接上服务器~~");});app.post("/upload", function(request, respones) { console.log("/upload comming"); // 获得url上传来的参数 console.log(request.query); // 获得用户给我们发送过来的数据 // 监听我们的data来获得 request.on("data", function(data) { console.log(data.toString()); respones.send("UPLOAD OK");  });});

var http = require("http");/*callback(is_success, data/erro)*/function http_get(ip, port, url, params, callback){  //创建一个http.ClientRequest对象  var options = {    host : ip,    port : port,    path : url+"?"+params,    method : "GET",  };  var request = http.request(options,function(incoming_msg){    console.log("get respones");  });  //发送这个请求  request.end();}http_get("127.0.0.1", 6080, "/login", "uname=jadeshu&upw=123456", function(is_ok,data){});

var http = require("http");/* [100] = "Continue", [101] = "Switching Protocols", [200] = "OK", [201] = "Created", [202] = "Accepted", [203] = "Non-Authoritative Information", [204] = "No Content", [205] = "Reset Content", [206] = "Partial Content", [300] = "Multiple Choices", [301] = "Moved Permanently", [302] = "Found", [303] = "See Other", [304] = "Not Modified", [305] = "Use Proxy", [307] = "Temporary Redirect", [400] = "Bad Request", [401] = "Unauthorized", [402] = "Payment Required", [403] = "Forbidden", [404] = "Not Found", [405] = "Method Not Allowed", [406] = "Not Acceptable", [407] = "Proxy Authentication Required", [408] = "Request Time-out", [409] = "Conflict", [410] = "Gone", [411] = "Length Required", [412] = "Precondition Failed", [413] = "Request Entity Too Large", [414] = "Request-URI Too Large", [415] = "Unsupported Media Type", [416] = "Requested range not satisfiable", [417] = "Expectation Failed", [500] = "Internal Server Error", [501] = "Not Implemented", [502] = "Bad Gateway", [503] = "Service Unavailable", [504] = "Gateway Time-out", [505] = "HTTP Version not supported",}*//*callback(is_success, data/erro)*/// get请求的参数，是带在URL的地址上面的function http_get(ip, port, url, params, callback) { // step1,创建一个 http.ClientRequest var options = { host: "127.0.0.1", port: port, path: url + "?" + params, method: "GET" }; // 当有请求返回的时候，参数就会被传递为http.IncomingMessage var req = http.request(options, function(incoming_msg) { console.log("respones status " + incoming_msg.statusCode); // 监听IncomingMessage的data事件，当收到服务器发过来的数据的时候，触发这个事件 incoming_msg.on("data", function(data) {  if (incoming_msg.statusCode === 200) {  callback(true, data);  } }); }); // 把这个请求发送出去 req.end();}/*http_get("127.0.0.1", 6080, "/login", "uname=blake&upwd=123456", function(is_ok, data) { if (is_ok) { console.log(data.toString()); }});*/// post可以带body数据传到服务器function http_post(ip, port, url, params, body, callback) { // step1,创建一个 http.ClientRequest var options = { host: "127.0.0.1", port: port, path: url + "?" + params, method: "POST", headers: {  "Content-Type": "application/x-www-form-urlencoded",  "Content-Length": body.length } }; var req = http.request(options, function(incoming_msg) { console.log("respones status " + incoming_msg.statusCode); // 监听IncomingMessage的data事件，当收到服务器发过来的数据的时候，触发这个事件 incoming_msg.on("data", function(data) {  if (incoming_msg.statusCode === 200) {  callback(true, data);  } }); }); // step2 写入body数据 req.write(body); // 发送请求 req.end();}http_post("127.0.0.1", 6080, "/upload", "filename=my_file.txt", "Hello Htpp Post", function(is_ok, data) { if (is_ok) { console.log("upload_success", data.toString());  }});