深入理解node.js http模块

var http = require(“http”);var url = require(“url”);//创建服务器//http继承自tcpvar server = http.createServer(function (req,res) {  var urlstr = req.url;//获取请求的路径  var urlMethod = req.method;//获取请求的方法  var urlObj = url.parse(urlstr,true);  console.log(urlObj);    console.log(urlMethod);  res.end(“hello”);});server.listen(8080);

var http = require("http");var fs = require("fs");var url = require("url");var querystring = require("querystring");var server = http.createServer(function (req,res) {  console.log(req.method);  var pathname = url.parse(req.url,true).pathname;  if(pathname=="/"){  //  加载注册页面    var rs = fs.createReadStream("post.html");    rs.pipe(res);  }else if(pathname=="/post"){    // 处理post请求    var str = "";    req.on("data",function (chunk) {      // console.log(chunk.toString());      str += chunk;    });    req.on("end",function(){      var postObj = querystring.parse(str);      console.log(postObj);    })  }else if(pathname=="/get"){    // get请求    var getObj = url.parse(req.url,true).query;    res.write(JSON.stringify(getObj));    res.end();  }else if(pathname!="/favicon.ico"){    var rs = fs.createReadStream("."+pathname);    rs.pipe(res);  };});server.listen(8787);

<form action=“/upimg” method=“post” enctype=“multipart/form-data”>用户名: <input type=“text” name=“user”><br> 密码: <input type=“password” name=“pass”><br>上传图片: <input type=“file” name=“file1”><br> <input type=“submit” value=“提交”></form>

var http = require("http");var fs = require("fs");var url = require("url");// 文件上传var formidable = require("formidable");var server = http.createServer(function(req,res){  var pathname = url.parse(req.url,true).pathname;  if(pathname=="/"){    var rs = fs.createReadStream("uploads.html");    rs.pipe(res);  }else if(pathname=="/uploads"){    // 实例化一个formidable类    var form = new formidable.IncomingForm();   // 调用parse方法    form.parse(req,function(err,fields,files){      if(err){        return console.log(err);      }else{        // console.log("字段",fields);        // 存储字段        var fieldStr = JSON.stringify(fields);        fs.writeFileSync("1.txt",fieldStr);        // 转存文件        if(!fs.existsSync("uploads")){          fs.mkdir("uploads");        }       // 随机路径        var filePath = files.img.path;        var rs = fs.createReadStream(filePath);        var ws = fs.createWriteStream("./uploads/"+files.img.name);        rs.pipe(ws);        rs.on("data",function (chunk) {                  })        rs.on("end",function(){          console.log("复制成功");          res.write("上传成功");          res.end();        })        res.setHeader("Content-type","text/html;charset=utf8");          console.log("文件",files);      }    })  }else if(pathname!="/favicon.ico"){    var rs = fs.createReadStream("."+pathname);    rs.pipe(res);  }});server.listen(8880);

// 通过nodejs模拟客户端var http = require("http");var options = {  method:"post",  host:"localhost",  port:2121,  path:"/"};var request = http.request(options,function (res) {  var str = "";  res.on("data",function(chunk){    str += chunk;  });  res.on("end",function () {    console.log(str);  })});var obj = {  name:"李四",  age:20}request.write(JSON.stringify(obj));request.end();