golang-http包

基本使用

HTTP客户端，默认使用Http.DefaultClient

1.发送Get请求

resp, err := http.Get("https://jsonplaceholder.typicode.com/posts/1")
	if err != nil {
    
    
		panic(err)
	}
	defer resp.Body.Close()

2.发送post请求,携带json数据

	//模拟json串
	data := map[string]interface{
    
    }{
    
    
		"name": "kd",
		"age":  18,
	}
	b, _ := json.Marshal(data)
	r:= bytes.NewReader(b)
	
	resp, err := http.Post("http://www.atool.org/httptest.php", "application/json", r)

	if err != nil {
    
    
		panic(err)
	}
	defer resp.Body.Close()

3.定制客户端与request请求

设定客户端的超时时间为3s

	c := &http.Client{
    
    Timeout: time.Second * 3}
	resp, _ := c.Get("http://www.atool.org/httptest.php")

//定制请求：可以通过NewRequest方法实现发送put、delete请求等
	request, err := http.NewRequest("put", "http://www.atool.org/httptest.php", nil)
	if err != nil {
    
    
		panic(err)
	}
	resp, err := c.Do(request)

HTTP服务器

ServeMux 是一个 HTTP 请求多路复用器(HTTP Request multiplexer)

1.使用Http.DefaultServeMux

	type CustomeHandle struct {
    
    
	}
	
	func (*CustomeHandle) ServeHTTP(w http.ResponseWriter, r *http.Request) {
    
    
		w.Write([]byte("helloworld"))
	}
	
	//1.使用Handle,需实现ServerHTTP接口
	http.Handle("/", &CustomeHandle{
    
    })
	//2.使用Handlefunc，匿名函数
	http.HandleFunc("/a", func(writer http.ResponseWriter, request *http.Request) {
    
    
		w.Write([]byte("helloworld"))
	})
	
	http.ListenAndServe(":8080", nil)

2.定制化HTTP服务器

设置读超时、写超时都为1s

	server := http.Server{
    
    
		ReadTimeout: time.Second, 
		WriteTimeout: time.Second,
		Addr: "127.0.0.1:8080",
	}
	mux:=http.NewServeMux()
	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
    
    
		w.Write([]byte("hello"))
	})
	
	server.ListenAndServe()