Golang send get and post examples

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

GETRequest

GET requests can be used directly with http.Get methods

Simple

func main(){resp, err := http.Get("https://baidu.com")    if err != nil {        panic(err)        }    defer resp.Body.Close()    s,err:=ioutil.ReadAll(resp.Body)    fmt.Printf(string(s))}

Complex

func main() {    params := url.Values{}    Url, err := url.Parse("http://baidu.com?fd=fdsf")    if err != nil {        panic(err.Error())    }    params.Set("a", "fdfds")    params.Set("id", string("1"))    //如果参数中有中文参数,这个方法会进行URLEncode    Url.RawQuery = params.Encode()    urlPath := Url.String()    resp, err := http.Get(urlPath)    defer resp.Body.Close()    s, err := ioutil.ReadAll(resp.Body)    fmt.Println(string(s))}

This is params.set not feeling with PHP http_build_query , and I feel ha

POSTRequest

Use http.post

type Server struct {    ServerName string    ServerIp   string}type ServerSlice struct {    Server    []Server    ServersID string}func main() {    //post 第三个参数是io.reader interface    //strings.NewReader  byte.NewReader bytes.NewBuffer  实现了read 方法    s := ServerSlice{ServersID: "tearm", Server: []Server{{"beijing", "127.0.0.1"}, {"shanghai", "127.0.0.1"}}}    b, _ := json.Marshal(s)         fmt.Println(string(b))    resp, _ := http.Post("http://baidu.com", "application/x-www-form-urlencoded", strings.NewReader("heel="+string(b)))    //    defer resp.Body.Close()    //io.Reader    body, _ := ioutil.ReadAll(resp.Body)    fmt.Println(string(body))

Use http.PostForm

func httpPostForm() {// params:=url.Values{}// params.Set("hello","fdsfs")  //这两种都可以   params= url.Values{"key": {"Value"}, "id": {"123"}}     resp, _:= http.PostForm("http://baidu.com",       body)     defer resp.Body.Close()    body, _:= ioutil.ReadAll(resp.Body)        fmt.Println(string(body)) }

If you need to set the header parameters, cookies and other data, you can use thehttp.Do

func httpDo() {    client := &http.Client{}        req, err := http.NewRequest("POST", "baidu.com", strings.NewReader("name=cjb"))    if err != nil {        // handle error    }     req.Header.Set("Content-Type", "application/x-www-form-urlencoded")    req.Header.Set("Cookie", "name=anny")     resp, err := client.Do(req)     defer resp.Body.Close()     body, err := ioutil.ReadAll(resp.Body)    if err != nil {        // handle error    }     fmt.Println(string(body))}

The same http.NewRequest third parameter only needs to implement the io.reader interface.