nodejs作為一門后端語言，接觸的最多的是它的框架，但是它本身的api我覺得更是非學不可，所有才有了這篇文章
表單提交是最基本的也是最實用的入門實例
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>表單1</legend> 姓名:<input type="text" name="username" /><br /> 學歷:<select name="education"> <option value="中學">中學</option> <option value="大專">大專</option> <option value="本科">本科</option> <option value="碩士">碩士</option> <option value="博士">博士</option> </select><br /> 住址:<input type="text" name="address" /> 隱藏:<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=="/") //訪問表單頁面 { 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") //處理post方式請求 { var urlstr=""; request.addListener("data",function(postdata){ urlstr+=postdata; //接收到的表單數據字符串，這里可以用兩種方法將UTF-8編碼轉換為中文 var jsondata = qs.parse(urlstr); //轉換成json對象 var decodedata = decodeURIComponent(urlstr); //對表單數據進行解碼 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") //處理get方式請求 { 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(); } }
知識點：
1.node創建一個簡單的服務器
2.fs讀取文件模塊
3.url模塊
4.解析url的querystring模塊
有興趣的可以參看api這里就不一一細說了