Go Language _http Pack

This is a creation in Article, where the information may have evolved or changed.

There are roughly two ways to write an HTTP Web server in Golang:

1 NET package is used. Listen to listen to the port

2 Using the Net/http package

HTTP Client

Here is a discussion of how to create a Web server using the Net/http package

Net/http request provides a specific implementation of the HTTP client and server

Import (    "FMT"    "Net/http" "    Io/ioutil") func main () {    response,_: = http. Get ("http://www.baidu.com")    defer response. Body.close ()    body,_: = Ioutil. ReadAll (response. Body)    FMT. Println (String (body))}

In addition to using these three functions to build a simple client, you can also use:

http. Client and Http.newrequest to simulate the request

Package main import (    "Net/http" "Io/ioutil" "    FMT") func main () {    client: = &http. client{}    Reqest, _: = http. Newrequest ("GET", "http://www.baidu.com", nil)         reqest. Header.set ("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8")    reqest. Header.set ("Accept-charset", "gbk,utf-8;q=0.7,*;q=0.3")    reqest. Header.set ("accept-encoding", "GZIP,DEFLATE,SDCH")    reqest. Header.set ("Accept-language", "zh-cn,zh;q=0.8")    reqest. Header.set ("Cache-control", "max-age=0")    reqest. Header.set ("Connection", "keep-alive")         response,_: = client. Do (reqest)    if response. StatusCode = =        $ {body, _: = Ioutil. ReadAll (response. Body)        Bodystr: = string (body);        Fmt. Println (BODYSTR)    }}

How do I create a Web service side?

HTTP packets are packaged in a very bt, only two lines required!! :

Package main import (    "Net/http") Func SayHello (w http. Responsewriter, req *http. Request) {    w.write ([]byte ("" Hello ")}} Func main () {    http. Handlefunc ("/hello", SayHello)    http. Listenandserve (": 8001", nil)}

Listen for Port: http. Listenandserve (": 8001", nil)

Register the path handler function: http. Handlefunc ("/hello", SayHello)

handler function: Func SayHello (w http. Responsewriter, req *http. Request)