【二、http】go的http基本请求设置（设置查询参数、定制请求头）get和post类似

一、设置url后边的参数，（get和post请求为例子）

func requstByParamsGet(){
	requst, err := http.NewRequest(http.MethodGet, "http://httpbin.org/get", nil)
	if err != nil {
		fmt.Println("ss")
	}

	params := make(url.Values)
	params.Add("name", "kaiyue")
	params.Add("age", "18")

	//encode之后会生成如下，name=kaiyue&age=18
	requst.URL.RawQuery = params.Encode()
	r, err := http.DefaultClient.Do(requst)
	if err != nil {
		fmt.Println("ss")
	}
	defer r.Body.Close()
	printBody(r)
}

func requstByParamsPost(){
	requst, err := http.NewRequest(http.MethodPost, "http://httpbin.org/post", nil)
	if err != nil {
		fmt.Println("ss")
	}

	params := make(url.Values)
	params.Add("name", "kaiyue")
	params.Add("age", "18")

	//encode之后会生成如下，name=kaiyue&age=18, 是组成url问号后边的参数
	requst.URL.RawQuery = params.Encode()
	r, err := http.DefaultClient.Do(requst)
	if err != nil {
		fmt.Println("ss")
	}
	defer r.Body.Close()
	printBody(r)
}
func main() {
	requstByParamsPost()
}
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结果：

{
  "args": {
    "age": "18", 
    "name": "kaiyue"
  }, 
  "data": "", 
  "files": {}, 
  "form": {}, 
  "headers": {
    "Accept-Encoding": "gzip", 
    "Content-Length": "0", 
    "Host": "httpbin.org", 
    "User-Agent": "Go-http-client/1.1", 
    "X-Amzn-Trace-Id": "Root=1-6544e26c-2a47c0392e3351a71259c068"
  }, 
  "json": null, 
  "origin": "120.244.60.192", 
  "url": "http://httpbin.org/post?age=18&name=kaiyue"
}

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二、定制http头中的参数

func requstByHeader(){
	requst, err := http.NewRequest(http.MethodGet, "http://httpbin.org/get", nil)
	if err != nil {
		fmt.Println("ss")
	}

	requst.Header.Add("user-agent", "chrome")
	r, err := http.DefaultClient.Do(requst)
	if err != nil {
		fmt.Println("ss")
	}
	defer r.Body.Close()
	printBody(r)
}

func main() {
	requstByHeader()
}

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结果：

{
  "args": {}, 
  "headers": {
    "Accept-Encoding": "gzip", 
    "Host": "httpbin.org", 
    "User-Agent": "chrome", 
    "X-Amzn-Trace-Id": "Root=1-6544e394-14143f26584a7eed32728fd7"
  }, 
  "origin": "120.244.60.192", 
  "url": "http://httpbin.org/get"
}

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可以看到其中头部信息已经打印出自己增加的部分内容