Go HTTP 调用（下）

耐心和持久胜过激烈和狂热。

哈喽大家好，我是陈明勇，今天分享的内容是 Go HTTP 调用。如果本文对你有帮助，不妨点个赞，如果你是 Go 语言初学者，不妨点个关注，一起成长一起进步，如果本文有错误的地方，欢迎指出！

前言

queryheaderPOST

POST 请求

HTTPPOSTjsonbodyjsonRestFul APIHTTPPOSTjsonbody

import (
	"bytes"
	"context"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
)

type User struct {
	Username string `json:"username"`
	Password string `json:"password"`
}

func main() {
	client := http.Client{}

	user := User{
		Username: "123456",
		Password: "12346",
	}
	dataByte, err := json.Marshal(user)
	if err != nil {
		fmt.Println(err)
	}
	bodyReader := bytes.NewReader(dataByte)

	request, err := http.NewRequestWithContext(context.Background(), http.MethodPost, "http://localhost:8080/user", bodyReader)
	if err != nil {
		return
	}
	request.Header.Set("Content-Type", "application/json")
	resp, err := client.Do(request)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println("statusCode: ", resp.StatusCode)
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return
	}
	defer resp.Body.Close()
	fmt.Println(string(body))
}

values := url.Values{}
values.Set("username", "1234")
values.Set("password", "1234")
bodyReader := strings.NewReader(values.Encode())

小结

POSTjsonapplication/x-www-form-urlencodedbodyHTTPquerybodyGETPOSTPUTDELETENewRequestWithContexthttp.MethodPuthttp.MethodDelete