nodejs作为一门后端语言，接触的最多的是它的框架，但是它本身的api我觉得更是非学不可，所有才有了这篇文章
表单提交是最基本的也是最实用的入门实例
HTML：
<!DOCTYPE html>
<html>
<head>
<title>main</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<div id="div1" style="width: 350px;">
<form id="form1" method="post" action="postlogin" >
<fieldset>
<legend>表单1</legend>
姓名:<input type="text" name="username" /><br />
学历:<select name="education">
<option value="中学">中学</option>
<option value="大专">大专</option>
<option value="本科">本科</option>
<option value="硕士">硕士</option>
<option value="博士">博士</option>
</select><br />
住址:<input type="text" name="address" />
隐藏:<input name="hide" disabled="disabled" value="111" />
<input type="submit" value="提交" />
</fieldset>
</form>
</div>
</body>
</html>
server端：
var httpserver = require("http");
var qs = require("querystring");
var url = require("url");
var fs = require("fs");
httpserver.createServer(onRequest).listen(3000);
function onRequest(request,response)
{
var pathname = url.parse(request.url).pathname;
if(pathname=="/") //访问表单页面
{
response.writeHead(200,{"Content-Type":"text/html"});
fs.readFile("index.html","utf-8",function(e,data){
response.write(data);
response.end();
});
}
else if(pathname=="/postlogin") //处理post方式请求
{
var urlstr="";
request.addListener("data",function(postdata){
urlstr+=postdata; //接收到的表单数据字符串，这里可以用两种方法将UTF-8编码转换为中文
var jsondata = qs.parse(urlstr); //转换成json对象
var decodedata = decodeURIComponent(urlstr); //对表单数据进行解码
console.log(urlstr);
console.log(jsondata);
console.log(decodedata);
urlstr = decodedata;
});
request.addListener("end",function(){
response.writeHead(200,{"Content-Type":"text/plain; charset=utf-8"});
response.write(urlstr);
response.end();
});
}
else if(pathname=="/getlogin") //处理get方式请求
{
var urlstr = url.parse(request.url).query;
var jsondata = qs.parse(urlstr);
var decodedata = decodeURIComponent(urlstr);
console.log(urlstr);
console.log(jsondata);
console.log(decodedata);
urlstr = decodedata;
response.writeHead(200,{"Content-Type":"text/plain; charset=utf-8"});
response.write(urlstr);
response.end();
}
else
{
response.writeHead(200,{"Content-Type":"text/plain"});
response.write("error");
response.end();
}
}
知识点：
1.node创建一个简单的服务器
2.fs读取文件模块
3.url模块
4.解析url的querystring模块
有兴趣的可以参看api这里就不一一细说了