http请求及json发送与解析 post string

golang http请求及json流解析 - 长风v持成的博客 - CSDN博客 https://blog.csdn.net/u011677067/article/details/80852158

package main

import (
	"encoding/json"
	"fmt"
	//"io/ioutil"
	"log"
	"net/http"
	"net/url"
	"os"
	"strings"
	"time"
)

const IssueURL = "https://api.github.com/search/issues"

type IssuesSearchResult struct {
	TotalCount int `json:"total_count"`
	Items      []*Issue
}

type Issue struct {
	Number   int
	HTMLURL  string `json:"html_url"`
	Title    string
	State    string
	User     *User
	CreateAt time.Time `json:"create_at"`
	Body     string
}

type User struct {
	Login   string
	HTMLURL string `json:"html_url"`
}

func SearchIssues(terms []string) (*IssuesSearchResult, error) {
	q := url.QueryEscape(strings.Join(terms, " "))
	urls := IssueURL + "?q=" + q
	resp, err := http.Get(urls)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()

	fmt.Println("start encode ...")

	/*web, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	fmt.Printf("web:%s\n==============\n", web)
	*/
	if resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("search query failed: %s", resp.Status)
	}

	var result IssuesSearchResult
	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
		return nil, err
	}
	return &result, nil
}

func main() {
	result, err := SearchIssues(os.Args[1:])
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%d issue: \n", result.TotalCount)

	for _, item := range result.Items {
		fmt.Printf("#<%-5d> <%9.9s> <%.55s>\n\n", item.Number, item.User.Login, item.Title)
	}
}

　　

go http 传递json数据 - 翔云 - CSDN博客 https://blog.csdn.net/lanyang123456/article/details/78702873

package  main

import (
        "encoding/json"
        "fmt"
        "html"
        "io/ioutil"
        "log"
        "net/http"

)

type Cmd struct {
        ReqType int
        FileName string

}

func main() {

        http.HandleFunc("/bar", func (w http.ResponseWriter, r *http.Request){
                fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path))

                if r.Method == "POST" {
                        b, err := ioutil.ReadAll(r.Body)
                        if err != nil {
                                log.Println("Read failed:", err)
                        }
                        defer r.Body.Close()

                        cmd := &Cmd{}
                        err = json.Unmarshal(b, cmd)
                        if err != nil {
                                log.Println("json format error:", err)
                        }

                        log.Println("cmd:", cmd)
                } else {

                        log.Println("ONly support Post")
                        fmt.Fprintf(w, "Only support post")
                }

        })

        log.Fatal(http.ListenAndServe(":8080", nil))

}

　　

//post json
package main

import (
    "bytes"
    "encoding/json"
    "io/ioutil"
    "log"
    "net/http"

)

type Cmd struct {

    ReqType int
    FileName string

}

func main() {

    url := "http://127.0.0.1:8080/bar"
    contentType := "application/json;charset=utf-8"

    cmd := Cmd{ReqType: 12, FileName: "plugin"}
    b ,err := json.Marshal(cmd)
    if err != nil {
        log.Println("json format error:", err)
        return
    }

    body := bytes.NewBuffer(b)

    resp, err := http.Post(url, contentType, body)
    if err != nil {
        log.Println("Post failed:", err)
        return
    }

    defer resp.Body.Close()

    content, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        log.Println("Read failed:", err)
        return
    }

    log.Println("content:", string(content))

}