Node.Js http模块（一）-发送http请求实例

Node.Js http模块可以创建服务器应用实例，也能发送http请求

1.http.get(options[, callback])

发送简单Get请求，并响应

var http=require('http');//get 请求外网http.get('http://www.gongjuji.net',function(req,res){var html='';req.on('data',function(data){html+=data;});req.on('end',function(){console.info(html);});});

2.http.request(options[, callback])  // 使用详细配置，发送Get或Post请求

发送Post实例：

var http=require('http');var querystring=require('querystring');//发送 http Post 请求var postData=querystring.stringify({msg:'中文内容'});var options={   hostname:'www.gongjuji.net',   port:80,   path:'/',   method:'POST',   header:{   //'Content-Type':'application/x-www-form-urlencoded',   'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8',   'Content-Length':Buffer.byteLength(postData)   }}var req=http.request(options, function(res) {console.log('Status:',res.statusCode);console.log('headers:',JSON.stringify(res.headers));res.setEncoding('utf-8');res.on('data',function(chun){console.log('body分隔线---------------------------------\r\n');console.info(chun);});res.on('end',function(){console.log('No more data in response.********');});});req.on('error',function(err){console.error(err);});req.write(postData);req.end();

发送Get请求实例：

//发送Get请求var http=require('http');var querystring=require('querystring');var data={age:13,time:new Date().getTime()};var content=querystring.stringify(data);var options={hostname:'www.gongjuji.net',port:80,path:'/',method:'GET'}//创建请求var req=http.request(options,function(res){console.log('STATUS:'+res.statusCode);console.log('HEADERS:'+JSON.stringify(res.headers));res.setEncoding('utf-8');res.on('data',function(chunk){console.log('数据片段分隔-----------------------\r\n');console.log(chunk);});res.on('end',function(){console.log('响应结束********');});});req.on('error',function(err){    console.error(err);});req.end();

参数说明：

options can be an object or a string. If options is a string, it is automatically parsed with url.parse().

Options:

• protocol: Protocol to use. Defaults to 'http:'.
• host: A domain name or IP address of the server to issue the request to. Defaults to 'localhost'.
• hostname: Alias for host. To support url.parse() hostname is preferred over host.
• family: IP address family to use when resolving host and hostname. Valid values are 4 or 6. When unspecified, both IP v4 and v6 will be used.
• port: Port of remote server. Defaults to 80.
• localAddress: Local interface to bind for network connections.
• socketPath: Unix Domain Socket (use one of host:port or socketPath).
• method: A string specifying the HTTP request method. Defaults to 'GET'.
• path: Request path. Defaults to '/'. Should include query string if any. E.G. '/index.html?page=12'. An exception is thrown when the request path contains illegal characters. Currently, only spaces are rejected but that may change in the future.
• headers: An object containing request headers.
• auth: Basic authentication i.e. 'user:password' to compute an Authorization header.
• agent: Controls Agent behavior. When an Agent is used request will default to Connection: keep-alive. Possible values:
  • undefined (default): use http.globalAgent for this host and port.
  • Agent object: explicitly use the passed in Agent.
  • false: opts out of connection pooling with an Agent, defaults request to Connection: close.