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今天特意找了下go的網路請求篇，get請求是ok的，post請求一直不下來，搜尋了下，程式碼都差不多，無法拿到post資料，先整理一篇，親測可用。

針對post ，先來說下post 四種提交資料方式（Content-Type）  連結

• application/x-www-form-urlencoded      key1=val1&key2=val2       PHP 中，$_POST['title'] 可以獲取到 title 的值，$_POST['sub'] 可以得到 sub 陣列。
• multipart/form-data     檔案上傳
• application/json    在請求頭中 Content-Type 為 application/json 時，從 php://input 裡獲得原始輸入流

• text/xml       不熟悉

  我當時測試的為php介面，然後content-type 寫成了 application/json，然後怎麼post都是拿到的域名的html頁面程式碼。以下為測試通過程式碼

1、get請求

 1 package main
 2 
 3 import (
 4     "bytes"
 5     "fmt"
 6     "log"
 7     "net/http"
 8     "reflect"
 9 )
10 
11 func main() {
12 
13     url := "http://api.budejie.com/api/api_open.php?a=list&appname=baisibudejie_hd&asid=C1180CB8-F460-4385-A77C-97CD1AA83DFD&c=data&client=ipad&device=ios%20%E8%AE%BE%E5%A4%87&from=ios&jbk=0&mac=02:00:00:00:00:00&market=&maxtime=&openudid=78336166d6a434b4cf1634410eb3b692d6d3a4ee&order=ctime&page=1&per=20000&systemversion=7.1&type=10&ver=2.0.3
 
"
14 
15     resp, err := http.Get(url)
16 
17     if err != nil {
18         // 錯誤處理
19         log.Println(err)
20         return
21     }
22 
23     defer resp.Body.Close() //關閉連結
24 
25     fmt.Printf("resp status %s,statusCode %d\n", resp.Status, resp.StatusCode)
26 
27     fmt.Printf("resp Proto %s\n", resp.Proto)
28 
29     fmt.Printf("resp content length %d\n", resp.ContentLength)
30 
31     fmt.Printf("resp transfer encoding %v\n", resp.TransferEncoding)
32 
33     fmt.Printf("resp Uncompressed %t\n", resp.Uncompressed)
34 
35     fmt.Println(reflect.TypeOf(resp.Body))
36     buf := bytes.NewBuffer(make([]byte, 0, 512))
37     length, _ := buf.ReadFrom(resp.Body)
38     fmt.Println(len(buf.Bytes()))
39     fmt.Println(length)
40     fmt.Println(string(buf.Bytes()))
41 }

2、post請求

package main

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
	"time"
)

func main() {

	url := "http://api.budejie.com/api/api_open.php"
	var data map[string]string /*建立集合 */
	data = make(map[string]string)
	data["a"] = "list"
	data["appname"] = "baisibudejie_hd"
	data["asid"] = "C1180CB8-F460-4385-A77C-97CD1AA83DFD"
	data["c"] = "data"
	data["client"] = "ipad"
	data["device"] = "ios"
	data["from"] = "ios"
	data["jbk"] = "0"
	data["mac"] = "02:00:00:00:00:00"
	data["openudid"] = "78336166d6a434b4cf1634410eb3b692d6d3a4ee"
	data["order"] = "ctime"
	data["page"] = "1"
	data["per"] = "20"
	data["systemversion"] = "7.1"
	data["type"] = "10"
	data["ver"] = "2.0.3"
	data["market"] = ""
	data["maxtime"] = ""

	contentType := "application/x-www-form-urlencoded"
	json := Post(url, data, contentType)
	fmt.Println(json)

}

//傳送POST請求
//url:請求地址，data:POST請求提交的資料,contentType:請求體格式，如：application/json
//content:請求放回的內容
func Post(urlStr string, data map[string]string, contentType string) (content string) {
	postValues := url.Values{}
	for postKey, PostValue := range data {
		postValues.Set(postKey, PostValue)
	}
	postDataStr := postValues.Encode()
	postDataBytes := []byte(postDataStr)
	postBytesReader := bytes.NewReader(postDataBytes)
	req, err := http.NewRequest("POST", urlStr, postBytesReader)
	req.Header.Add("content-type", contentType)
	if err != nil {
		panic(err)
	}
	defer req.Body.Close()

	client := &http.Client{Timeout: 5 * time.Second}
	resp, error := client.Do(req)
	if error != nil {
		panic(error)
	}
	defer resp.Body.Close()

	result, _ := ioutil.ReadAll(resp.Body)
	content = string(result)
	return
}

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