node.js 接收get请求


Get 请求的相关方法一定在http.ServerRequest下,ServerRequest有data、end、close3个事件,method、url、headers、trailers、httpVersion、connection6个属性,setEncoding、pause、resume3个方法。

url属性下有一段说明描述了怎么解析get请求:

request.url#

Request URL string. This contains only the URL that is present in the actual HTTP request. If the request is:

GET /status?name=ryan HTTP/1.1\r\n Accept: text/plain\r\n \r\n

Then request.url will be:

'/status?name=ryan'

If you would like to parse the URL into its parts, you can use require('url').parse(request.url). Example:

node> require('url').parse('/status?name=ryan') { href: '/status?name=ryan', search: '?name=ryan', query: 'name=ryan', pathname: '/status' }

If you would like to extract the params from the query string, you can use therequire('querystring').parse function, or pass true as the second argument to require('url').parse. Example:

node> require('url').parse('/status?name=ryan', true) { href: '/status?name=ryan', search: '?name=ryan', query: { name: 'ryan' }, pathname: '/status' }
说明中提到了require('url')和require('querystring') 可以分别查看API的URLQuery Strings小节

按照说明试一下吧(node> 表示 在命令行里敲代码)


那就结合 hello world 写一个动态的hello world

[javascript]
  1. var http = require('http');  
  2. var server = http.createServer();  
  3.   
  4. server.on('request',function (req, res){  
  5.   res.writeHead(200, {'Content-Type''text/plain'});  
  6.   var name = require('url').parse(req.url,true).query.name  
  7.   res.end('Hello World ' + name);  
  8. });  
  9.   
  10. server.listen(1337, "127.0.0.1");  
  11.   
  12. console.log('Server running at http://127.0.0.1:1337/');  
将以上代码保存到  example3.js文件中,在cmd中敲入node example3.js

在浏览器地址栏中敲入  http://127.0.0.1:1337/hello?name=myname


挺简单的,下一节讲复杂的post

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