目录
通过go语言实现http请求
1.http.Post
import (
"net/http"
"net/url"
)
data := url.Values{"start":{"100"},"hobby":{"xxxx"}}
body := strings.NewReader(data.Encode())
resp,err := http.Post("127.0.0.1:9338","application/x-www-form-urlencoded",body)
net/Http包没有封装直接使用请求带header的get或者post方法,所以,要想请求中带header,只能使用NewRequest方法
2.http.NewRequest
客户端:
import (
"net/http"
"json"
"IoUtil"
)
type Student struct{
id string
name string
}
type StudentReq struct{
id string
name string
}
func main() {
data:= Student{
id:"2ed4tg5fe35fgty3yy6uh",name:"Amber",}
stu,err := json.Marshal(&data)
reader := bytes.NewReader(stu)
request,err := http.NewRequest("POST","http://192.168.1.12:8000/create",reader)
request.Header.Set("Content-Type","application/json")
client:=&http.Client{}
response,err := client.Do(request)
defer response.Body.Close()
body,err := IoUtil.ReadAll(response.Body)
fmt.Printf(string(body))
var stuReq StudentReq
err = json.UnMarshal(body,&stuReq)
fmt.Println(json.MarshalIndent(stuReq))
}
解析:
- stu,err := json.Marshal(&data):将data对象改为json格式
- reader := bytes.NewReader(stu):所以将json改为byte格式,作为body传给http请求
- request,err := http.NewRequest(“POST”,“http://192.168.1.12:8000/create”,reader):创建url
- response,err := client.Do(request):客户端发起请求,接收返回值
- body,err := IoUtil.ReadAll(response.Body):读取body的值,类型是byte
- json.MarshalIndent(stuReq):修改json为标准格式
注意(坑):
1、header里的参数是Content-Type,不要写成ContentType
2、【go http: read on closed response body 】如果发送的请求是分为2个func写的,记住defer要在IoUtil.ReadAll之后执行,否则报错
3.gorequest
这种方式适合在url里拼接参数使用param直接传递
"github.com/parnurzeal/gorequest"
func main() {
resp,body,errs := gorequest.New().Post("http://127.0.0.1/create").Param("ip","192.168.1.4").EndBytes()
if errs != nil || resp.StatusCode >= 300 {
log.Errorf("fail to call api with errors %v,%+v",errs,body)
}
var stuReq StudentReq
err = json.UnMarshal(body,&stuReq)
fmt.Println(json.MarshalIndent(stuReq))
}
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