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 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
.