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Gunosy.go #6
net/http + net/url

赻撩畿賡
? 荂鰍 �祩 (中氏卅心今午仄)
? 6堎卞Gunosy卞⻌扦
? https://github.com/satoshi03
? Java/Ruby ＃郔輪 Python/Go 宎戶引仄凶

Package net/http + net/url
? net
? net/http
每 cgi
每 cookiejar
每 httptest
每 httputil
每 pprof
? net/url
昜燴𦵴
犯奈正伉件弁𦵴
生永玄伐奈弁𦵴 (IP)
玄仿件旦禾奈玄𦵴(TCP/UDP)
失皿伉弗奈扑亦件𦵴 (HTTP)

Package net
? Package net provides a portable interface for
network I/O, including TCP/IP, UDP, domain name
resolution, and Unix domain sockets.
? 掀廌腔腴伊奶乩奈及籵陓毛灍政
昜燴𦵴

Package net
Server Client
Listen()
Accept()
Dial()
Write()
Read()
Write()
Read()

net server
? func Listen(network, laddr string) (Listener, error)
每弁仿奶失件玄井日及戊生弁扑亦件允月凶戶及諉適諳毛釬傖
每 laddr : 伕奈市伙失玉伊旦
每 network : ※tcp§, ※tcp4§, ※tcp6§, ※unix§, ※unixpacket§
? 硌隅褫夔 : stream oriented卅手及
? 公木眕俋ㄩ巨仿奈
每 Example :
? Listen(※tcp§ ※:8080§)

net client
? func Dial(network, address string) (Conn, error)
每硌隅仄凶失玉伊旦卞network匹硌隅仄凶源楊(沌Protocol)匹
諉適
每 Network 卞硌隅允月�
? tcp, tcp4, tcp6m udp, udp4, udp6, ip, ip4, ip6, unix, unixgram,
unixpacket
每 Examples
? Dial(※tcp§, ※12.34.56.78:80§)
? Dial(※tcp§, ※google.com:http§)
? Dial(※tcp§, ※[2001:db8::1]:http§)
? Dial(※tcp§, ※[fe80::1%lo0]:80§)

net server
? Func Accept(network, address string) (Conn, error)
每弁仿奶失件玄井日及諉適毛忳焂仄﹜Conn左皮斥尼弁玄毛殿陓
每 network : ※tcp§, ※tcp4§, ※tcp6§, ※unix§, ※unixpacket§
? 硌隅褫夔 : stream oriented卅手及
? 公木眕俋ㄩ巨仿奈

Package http
? Package http provides HTTP client and server
implementations.
昜燴𦵴

Package http
http.Server
http.Handler
http.Client
ListenAndServe
:80
GET/POST/HEAD

http server
? type Server
type Server struct {
Addr string
Handler Handler
ReadTimeout time.Duration
WriteTimeout time.Duration
MaxHeaderBytes int
TLSConfig *tls.Confis
}

http server
func ListenAndServe(addr string, handler Handler) error
每硌隅仄凶失玉伊旦﹜甩件玉仿奈毛妏蚚仄化扔奈田奈
毛お�
type Handler interface {
ServeHTTP(ResponseWriter, *Request)
}

http server demo
type AppHandler struct {
}
func(index *AppHandler) ServeHTTP(w
http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, ?hello world ?)
}
func main() {
index := new(AppHandler)
http.ListenAndServe(":8080", index)
}

Package http
http.Server
http.Handler http.Handler http.Handler
http.Client
ListenAndServe
:80
GET/POST/HEAD
http.ServeMux

http server
? func Handle(pattern string, handler Handler)
每硌隅仄凶由正奈件匹甩件玉仿奈毛袚樓
? func HandleFunc(pattern string, handler
func(ResponseWriter, *Request))
每硌隅仄凶由正奈件匹白央件弁扑亦件甩件玉仿奈毛袚樓

http server demo
type IndexHandler struct {
}
func(index *IndexHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "This is index page.§)
}
type DetailHandler struct {
}
func(index *DetailHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "This is detail page.")?
}
func main() {
index := new(IndexHandler)?
detail := new(DetailHandler)?
http.Handle("/", index)
http.Handle("/detail", detail)
http.ListenAndServe(":8080", nil)
}

http client (1/3)
? func (c *Client) Get(url string) (resp *Response, err
error)
每硌隅仄凶URL卞�仄化GET伉弁巨旦玄毛冞陓仄化伊旦禾件旦
毛龰腕
每 url : URL恅趼蹈

http client(2/3)
? func (c *Client) Post(url string, bodyType string, body
io.Reader) (resp *Response, err error)
每硌隅仄凶URL卞�仄化POST伉弁巨旦玄毛冞陓
每 url : url恅趼蹈
每 bodyType : post媆卞冞陓允月田奶玄蹈及意�
每 body : 冞陓允月田奶玄蹈
每 Example:
? resp, err := http.Post(※http://example.com/upload",
"image/jpeg", &buf)

http client(3/3)
? func (c *Client) PostForm(url string, data url.Values)
(resp *Response, err error)
每 Key Value倛宒匹POST伉弁巨旦玄毛冞陓
每 url : url恅趼蹈
每 data : key value倛宒及犯奈正
? Example
每 resp, err := http.PostForm("http://example.com/form",
url.Values{"key": {"Value"}, "id": {"123"}})

Package url
? URL毛奪燴允月由永弗奈斥
每 URL及由奈旦
每弁巨伉奈及巨旦弗奈皿�I燴

type url
type URL struct {
Scheme string
Opaque string // encoded opaque data
User *Userinfo // username and password information
Host string // host or host:port
Path string
RawQuery string // encoded query values, without '?'
Fragment string // fragment for references, without '#'
}
scheme://[userinfo@]host/path[?query][#fragment]

url
? func Parse(rawurl string) (url *URL, err error)
每 URL恅趼蹈毛由奈旦仄化URL左皮斥尼弁玄毛龰腕
u, err := url.Parse("http://bing.com/search?q=dotnet")
if err != nil {
log.Fatal(err)
}
u.Scheme = "https§
u.Host = "google.com§
q := u.Query()
q.Set("q", "golang")
u.RawQuery = q.Encode()
fmt.Println(u)
> https://google.com/search?q=golang
http://play.golang.org/p/8Id1F0vfvD

url
? QueryEscape(s string) string
每弁巨伉奈及恅趼蹈及巨旦弗奈皿卞劐𡥼
? QueryUnescape(s string) (string, error)
每巨旦弗奈皿今木凶弁巨伉奈毛恅趼蹈卞劐𡥼
escaped_url := url.QueryEscape(http://bing.com/search?q=test)
fmt.Println("escaped_url : " + escaped_url)
unescaped_url, err := url.QueryUnescape(escaped_url)
if err != nil {
log.Fatal(err)
}
fmt.Println("escaped_url : " + unescaped_url)
escaped_url : http%3A%2F%2Fbing.com%2Fsearch%3Fq%3Dtest
escaped_url : http://bing.com/search?q=test
http://play.golang.org/p/-jZzlqHdXm

Package net
? net
? net/http
每 cgi
每 cookiejar
每 httptest
每 httputil
每 pprof
? net/url
昜燴𦵴

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Gunosy Go lang study #6 net http url

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