示例1
package main
import (
"fmt"
http "net/http"
)
func indexHandler(respWriter http.ResponseWriter, r *http.Request) {
_, _ = fmt.Fprintf(respWriter, "Hello")
}
func main() {
http.HandleFunc("/", indexHandler)
_ = http.ListenAndServe(":8000", nil)
}
运行后，浏览器访问http://127.0.0.1:8000/，会展示 Hello。
示例2
package main
import (
"fmt"
http "net/http"
)
func indexHandler(respWriter http.ResponseWriter, r *http.Request) {
_, _ = fmt.Fprintf(respWriter, "Hello")
}
func welcomeHandler(respWriter http.ResponseWriter, r *http.Request) {
_, _ = fmt.Fprintf(respWriter, "Welcome")
}
func main() {
http.HandleFunc("/", indexHandler)
http.HandleFunc("/welcome", welcomeHandler)
_ = http.ListenAndServe("127.0.0.1:8000", nil)
}
运行后，浏览器访问http://127.0.0.1:8000/、http://127.0.0.1:8000/wel等网址，会展示 Hello。
浏览器访问http://127.0.0.1:8000/welcome，会展示 Welcome。
示例3:
package main
import (
"fmt"
http "net/http"
)
type simpleHandler struct {
content string
}
func (ih *simpleHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, ih.content)
}
func main() {
http.Handle("/", &simpleHandler{content:"Hello"})
http.Handle("/welcome", &simpleHandler{content:"Welcome"})
_ = http.ListenAndServe("127.0.0.1:8000", nil)
}
运行后，浏览器访问http://127.0.0.1:8000/、http://127.0.0.1:8000/wel等网址，会展示 Hello。
浏览器访问http://127.0.0.1:8000/welcome，会展示 Welcome。
示例4
package main
import (
"fmt"
http "net/http"
)
type simpleHandler struct {
content string
}
func (ih *simpleHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, ih.content)
}
func main() {
mux := http.NewServeMux()
mux.Handle("/", &simpleHandler{content:"Hello"})
mux.Handle("/welcome", &simpleHandler{content:"Welcome"})
http.ListenAndServe("127.0.0.1:8000", mux)
}
运行后，浏览器访问http://127.0.0.1:8000/、http://127.0.0.1:8000/wel等网址，会展示 Hello。
浏览器访问http://127.0.0.1:8000/welcome，会展示 Welcome。