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Node.Js http模块（一）-发送http请求实例

2016-08-31 10:21 846 查看

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：注http请求头使用headers指定

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',
headers:{
//'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

.
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

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