node.js----一个httpserver提交和解析get参数的例子
- 前端代码
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <meta name="description" content=""> <meta name="author" content=""> <link rel="icon" href="../../../../favicon.ico"> <title>Sticky Footer Navbar Template for Bootstrap</title> <!-- Bootstrap core CSS --> <link href="../static/booststrap4/css/bootstrap.min.css" rel="stylesheet"> <!-- Custom styles for this template --> <link href="../static/mycss/sticky-footer-navbar.css" rel="stylesheet"> </head> <body> <header> <!-- Fixed navbar --> <nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark"> <a class="navbar-brand" href="#">Fixed navbar</a> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarCollapse"> <ul class="navbar-nav mr-auto"> <li class="nav-item active"> <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link</a> </li> <li class="nav-item"> <a class="nav-link disabled" href="#">Disabled</a> </li> </ul> <form class="form-inline mt-2 mt-md-0"> <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search"> <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button> </form> </div> </nav> </header> <!-- Begin page content --> <main role="main" class="container"> <h1 class="mt-5">Sticky footer with fixed navbar</h1> <p class="lead">Pin a fixed-height footer to the bottom of the viewport in desktop browsers with this custom HTML and CSS. A fixed navbar has been added with <code>padding-top: 60px;</code> on the <code>body > .container</code>.</p> <p>Back to <a href="../sticky-footer">the default sticky footer</a> minus the navbar.</p> <form action="http://127.0.0.1:8090/?name=cpc&age=22" method="post">
#这里action属性如此构造纯粹是上机实验的需要，为的是能使用fs或者http模块解析查询参数 <p> <textarea name="rec" cols="120" rows="8"> </textarea> </p> <p> <button type="submit" class="btn btn-outline-primary">提交</button> </p> </form> </main> <footer class="footer"> <div class="container"> <span class="text-muted">Place sticky footer content here.</span> </div> </footer> <!-- Bootstrap core JavaScript ================================================== --> <!-- Placed at the end of the document so the pages load faster --> <script src="../static/booststrap4/js/jquery-3.3.1.min.js"></script> </body> </html>
效果:
点击提交以后，后端js脚本能够解析get和post请求参数和数据
- node.js后端代const http = require('http');var myquerystring = require('querystring');var myurl = require('url');var myfs = require('fs');var str="";
http.createServer(function(req,res){ var myreq = myurl.parse(req.url,true); console.log(myreq.query.name); #解析url中的参数name console.log(myreq.query.age); #解析url中的参数age req.on('data',function (data) { str+=data;#由于提交过来的数据量是多次到达的，所以用了+=操作符 }); req.on('end',function () {
#定义了提交完成后的动作 const postdata = myquerystring.parse(str);#这里特地用querystring模块解析了提交的参数，也就是html里面name属性为rec的容器值 console.log(postdata); myfs.writeFile('the pulp fiction.txt',postdata.rec,function(err){
#调用fs模块完成写入 if (err) throw err; console.log('file saved'); }) }); res.end(); }).listen(8090);
输出结果:
cpc 22 [Object: null prototype] { rec: ' rec= Node.js 是一个基于 Chrome V8 引擎的 JavaScript 运行环境。 \r\nNode.js 使用了一个事件驱动、非阻塞式 I/O 的模型，使其轻量又高效。 ' } file saved undefined undefined [Object: null prototype] { rec: ' rec= Node.js 是一个基于 Chrome V8 引擎的 JavaScript 运行环境。 \r\nNode.js 使用了一个事件驱动、非阻塞式 I/O 的模型，使其轻量又高效。 ' } file saved
