使用Python发送自动向数据库发送POST请求并保存（使用Python向数据库写入数据）

使用Python向数据库写入数据：

基于Springboot和Mybatis-Plus，需要往数据库里插入数据，由于一条一条插入太慢了，所以写了个简单的脚本，生成随机Json数据并发送到Springboot，保存到后台。

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SpringBoot的Service层实现的数据接收接口：

@RequestMapping({"/facilities1"})
public class FacilitiesOneController {
    @Autowired
    private FacilitiesOneService facilitiesOneService;

    public FacilitiesOneController() {
    }

    @GetMapping({"/"})
    public List<FacilitiesOne> findAll() {
        return this.facilitiesOneService.list();
    }

    @PostMapping//数据库插入方法
    public boolean save(@RequestBody FacilitiesOne facilitiesOne) {
        return this.facilitiesOneService.saveFacilitiesOne(facilitiesOne);
    }

可以看到，SpringBoot构造的可以接收请求链接为：http://localhost:9090/facilities1，一般使用第三方工具发送Post请求，如postman，但是无法实现大规模的数据请求，所以用Python可以连续快速发送请求。

Python实现Post请求发送

这是生成json数据的Python代码，命名为setdata.py（json构造根据自己需要），这里我生成的数据格式为：

{
 'id': '220709100000',  
 'carId': '川A5G6XL',
 'carType': '小型车', 
 'carSpeed': 74.7,
  'carLength': 4.2, 
  'arriveTime': '2022-07-09 04:42:40',
   'carState': 1, 
   'carSituation': '正常'
   }

可以根据自己的需求更改json内容

import random
import time
import datetime


def genrndchar(metachar):
    return metachar[int(random.random() * len(metachar))]


def license_plate():
    head = ["渝","川","渝","川","渝","川","渝","渝","贵","陕","桂"]
    s = genrndchar(head)
    s = s + genrndchar(['A', 'B', 'C', 'D', 'E', 'H'])
    #s = s + '-'
    s = s + genrndchar(['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'])
    for i in range(4):
        s = s + genrndchar(
            ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K',
             'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'])
    return s

def random_speed():
    return random.randint(300,1200)/10

def random_type():
    type_list = ["小型车","大型车","小型车","小型车","小型车","大型车","超大型车"]
    length_list = [4.2,5.6,4.3,4.1,4.0,5.8,8.7]
    i = random.randint(0,len(type_list)-1)
    return type_list[i],length_list[i]

def time_factory(start_time=(2022, 7, 1, 0, 0, 0, 0, 0, 0), end_time=(2022, 7, 30, 23, 59, 59, 0, 0, 0)):
    start = time.mktime(start_time)  # 生成开始时间戳
    end = time.mktime(end_time)  # 生成结束时间戳
    t = random.randint(start, end)  # 在开始和结束时间戳中随机取出一个
    date_touple = time.localtime(t)  # 将时间戳生成时间元组
    date = time.strftime("%Y-%m-%d %H:%M:%S", date_touple)  # 将时间元组转成格式化字符串
    return date

def random_state():
    state_list = ["正常","正常","正常","正常","正常","正常","正常","正常","正常","正常","正常","正常","正常","正常","正常","正常","正常",
                "正常","正常","正常",
                "正常","正常","正常","正常","正常","正常","正常","正常","正常","正常","正常","超速","遮挡号牌","无牌","逆行","违规变道"]
    code_list = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,3,4,5,6]
    i = random.randint(0,len(code_list)-1)
    #print(len(state_list)==len(code_list))
    return state_list[i],code_list[i]

def code_state(i):
    if i > 10000:
        res = str(i)
    elif i > 1000 & i<10000:
        res = "0" + str(i)
    elif i > 100 & i < 1000:
        res = "00" + str(i)
    elif i > 10 & i < 100:
        res = "000" + str(i)
    elif i < 10:
        res = str("0000") + str(i)
    return res

def random_id(i):
    date = time_factory()
    res = date[2:4] + date[5:7] + date[8:10] + str(1) +"%05d"%(i) 
    return date,res



def concat_to_json(i):

    car_type,car_length = random_type()
    time_res,id_res = random_id(i)
    state_res,code_res = random_state()

    res = {
            "id": id_res,
            "carId": license_plate(),
            "carType": car_type,
            "carSpeed": random_speed(),
            "carLength": car_length,
            "arriveTime": time_res,
            #"carImage": None,
            "carState": code_res,
            "carSituation": state_res
        }
    return res

这是发送json数据的Python代码，命名为senddata.py

import setdata
import json
import requests
#jsondata = json.dumps(jsontext,indent = 4,ensure_ascii = False,separators=(',', ': '))

headers = { 
        'User-Agent': 'ozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari/537.36'
    }
for i in range(500):
    jsontext = setdata.concat_to_json(i)
    r = requests.post("http://localhost:9090/facilities3/",headers=headers,json=jsontext)
    #print(r.text)
    print("正在发送第%d条请求"%(i))

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注意：

提示：请求发送成功之后会返回True，测试的时候可以print(r.text)，如果为true就可以大规模发送数据。