[Python知识库]golang服务端接收python客户端发送的数据

1.Requests以json形式发送post请求

client.py

import requests
import json

# Requests以json形式发送post请求
data_json = json.dumps({"1":"a", "2":"b", "3":"c", "4":"d"})
res = requests.post(url="http://localhost:8000/",data=data_json)

server.go

package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
)

func main() {
	http.HandleFunc("/", myHandle)
	http.ListenAndServe(":8000", nil)
}

func myHandle(w http.ResponseWriter, r *http.Request) {
	defer r.Body.Close()
	con, _ := ioutil.ReadAll(r.Body) //获取post的数据
	fmt.Println(con)
	fmt.Println("-------------------")
	fmt.Println(string(con))
}

注：必须先运行服务端，再运行客户端，否则会报错?requests.exceptions.ConnectionError: HTTPConnectionPool(host='localhost', port=8000): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x102d822e0>: Failed to establish a new connection: [Errno 61] Connection refused'))

2.Requests以form表单形式发送post请求

client.py

import requests

data = {"1":"a", "2":"b", "3":"c", "4":"d"}
res = requests.post(url="http://localhost:8000/",data=data)

例1

client.py

import requests
import json

data_json = json.dumps({"k1":"a", "k2":"b", "k3":"c", "k4":"d"})
res = requests.post(url="http://localhost:8000/",data=data_json)

server.go

/*
 * @Author: your name
 * @Date: 2021-12-22 10:55:07
 * @LastEditTime: 2021-12-23 21:25:00
 * @LastEditors: Please set LastEditors
 * @Description: 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
 * @FilePath: /script/t0.go
 */
package main

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

type Data struct {
	K1 string `json:"k1"`
	K2 string `json:"k2"`
	K3 string `json:"k3"`
	K4 string `json:"k4"`
}

func main() {
	http.HandleFunc("/", myHandle)
	http.ListenAndServe(":8000", nil)
}

func myHandle(w http.ResponseWriter, r *http.Request) {
	defer r.Body.Close()
	con, _ := ioutil.ReadAll(r.Body) //获取post的数据
	conStr := string(con)
	// fmt.Println(con)
	// fmt.Println("----------------------------")
	fmt.Println(conStr)
	fmt.Println("----------------------------")
	var data Data
	// 字节数组(con) 转 json(Data)
	if err := json.Unmarshal(con, &data); err == nil {
		fmt.Println(data)
		fmt.Println(data.K1)
		fmt.Println(data.K2)
		fmt.Println(data.K3)
		fmt.Println(data.K4)
	} else {
		fmt.Println(err)
	}
}

注：如需string转json，则如下

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