confrontation-training/http/http.go

package http

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

func GetReq(url string) *http.Response {
	client := &http.Client{}

	req, err := http.NewRequest("GET", url, nil)
	if err != nil {
		//panic(err)
		fmt.Println(err.Error())
	}
	resp, err := client.Do(req)
	if err != nil {
		//panic(err)
		fmt.Println(err.Error())
	}
	//defer func(Body io.ReadCloser) {
	//	err := Body.Close()
	//	if err != nil {
	//		fmt.Print("Body close err" + err.Error())
	//	}
	//}(resp.Body)
	return resp

}

//func postReq(name string, age int) {
//	client := &http.Client{}
//
//	req, err := http.NewRequest("POST", "http://localhost:5000/post",
//		strings.NewReader(fmt.Sprintf("name=%s&age=%d", name, age)))
//	if err != nil {
//		panic(err)
//	}
//
//	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
//
//	resp, err := client.Do(req)
//
//	defer resp.Body.Close()
//
//}

// PostReqJson 通过json提交post
func PostReqJson(url string, json []byte) *http.Response {
	req, err := http.NewRequest("POST", url, bytes.NewBuffer(json))
	req.Header.Set("Content-Type", "application/json")
	client := &http.Client{}
	resp, err := client.Do(req)
	if err != nil {
		panic(err)
	}
	defer func(Body io.ReadCloser) {
		err := Body.Close()
		if err != nil {
			fmt.Print("Body close err" + err.Error())
		}
	}(resp.Body)
	return resp
}

type JsonPost struct {
}

func (jp *JsonPost) postReqJson2() {
	post := make(map[string]interface{})
	post["name"] = "王柳"
	post["age"] = 21
	bytesData, err := json.Marshal(post)
	if err != nil {
		fmt.Println(err.Error())
		return
	}
	reader := bytes.NewReader(bytesData)
	url := "http://localhost:5000/post"
	request, err := http.NewRequest("POST", url, reader)
	if err != nil {
		fmt.Println(err.Error())
		return
	}
	request.Header.Set("Content-Type", "application/json;charset=UTF-8")
	client := http.Client{}
	resp, err := client.Do(request)
	if err != nil {
		fmt.Println(err.Error())
		return
	}
	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		fmt.Println(err.Error())
		return
	}
	//byte数组直接转成string，优化内存
	str := (*string)(unsafe.Pointer(&respBytes))
	fmt.Println(*str)

}

// DeleteReq 发送delete请求
func DeleteReq(url string) *http.Response {
	client := &http.Client{}

	req, err := http.NewRequest("DELETE", url, nil)
	if err != nil {
		panic(err)
	}
	resp, err := client.Do(req)
	if err != nil {
		panic(err)
	}
	return resp
}