Python實現(xiàn)獲取網(wǎng)頁內容及自動填表單與登錄功能

更新時間：2023年03月22日 14:07:03 作者：極客柒

這篇文章主要為大家詳細介紹了如何利用Python實現(xiàn)模擬瀏覽器啟動，獲取網(wǎng)頁內容、自動填表單、自動登錄、自動過驗證碼等功能，需要的可以參考一下

庫

import time
import ddddocr

源碼

# import threading  # 導入threading模塊
# from Feishu_SendMsg import *

# Identification verification code
import time
import ddddocr


interval = 100 * 60

# def delayCall():  # 定義方法
#     SendMsg("選題 快快快!!!")

#     timer=threading.Timer(interval,delayCall)  # 每秒運行
#     timer.start()  # 執(zhí)行方法
    
# if __name__ == '__main__':  #
#     t1=threading.Timer(interval,function=delayCall)  # 創(chuàng)建定時器
#     t1.start()  # 開始執(zhí)行線程


from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.keys import Keys


# SendMsg("自動填表單")
options = webdriver.ChromeOptions()
options.add_argument('--enable-automation')
options.add_argument('--no-sandbox')
options.add_argument('--disable-extensions')
options.add_argument('--start-maximized')
options.add_argument('--disable-infobars')

prefs = {"profile.default_content_setting_values.autocomplete_enabled": 2}
options.add_experimental_option("prefs", prefs)

# SendMsg("創(chuàng)建 Chrome 瀏覽器實例")
# 創(chuàng)建 Chrome 瀏覽器實例
browser = webdriver.Chrome(options=options)

# SendMsg("打開網(wǎng)頁")
browser.get('www.tttttttt.com')

# SendMsg("找到賬號和密碼框元素并輸入指定字符串")
username = browser.find_element("name","username")
password = browser.find_element("name","userpass")
usercode = browser.find_element("name","usercode")
img_verifycode = browser.find_element("id","img_verifycode")

# SendMsg("自動填充賬號密碼")
username.send_keys("11111")
password.send_keys("11111")

verifycodeBase64 = img_verifycode.screenshot_as_base64
ocr = ddddocr.DdddOcr()
res = ocr.classification(verifycodeBase64)
usercode.send_keys(res)
# SendMsg(f"識別并填寫驗證碼: {res}")

# SendMsg("提交表單")
password.send_keys(Keys.RETURN)
# SendMsg("登陸: 提交表單")

知識點補充

下面為大家介紹一下文中用到的ddddocr庫的相關使用吧

識別驗證碼的python 庫有很多，用起來也并不簡單，ddddocr (帶帶弟弟ocr)庫是一個簡單實用的識別驗證碼的庫，推薦給大家

ddddocr具體使用方法

import os
import ddddocr
from time import sleep
from PIL import Image
from selenium import webdriver
from selenium.webdriver.common.by import By

class GetVerificationCode:
	def __init__(self):
        self.res = None
        url = '要登錄的地址'
        self.driver = webdriver.Chrome()
        self.driver.maximize_window()  # 將瀏覽器最大化
        self.driver.get(url)

	# 獲取驗證碼信息
    def getVerification(self):
        # 獲取當前文件的位置、并獲取保存截屏的位置
        current_location = os.path.dirname(__file__)
        screenshot_path = os.path.join(current_location, "..", "VerificationCode")
        # 截取當前網(wǎng)頁并放到自定義目錄下，并命名為printscreen，該截圖中有我們需要的驗證碼
        sleep(1)
        self.driver.save_screenshot(screenshot_path + '//' + 'printscreen.png')
        sleep(1)
        # 定位驗證碼
        imgelement = self.driver.find_element(By.XPATH, '驗證碼圖片的Xpath定位')
        # 獲取驗證碼x,y軸坐標
        location = imgelement.location
        # 獲取驗證碼的長寬
        size = imgelement.size
        # 寫成我們需要截取的位置坐標
        rangle = (int(location['x'] + 430),
                  int(location['y'] + 200),
                  int(location['x'] + size['width'] + 530),
                  int(location['y'] + size['height'] + 250))
        # 打開截圖
        i = Image.open(screenshot_path + '//' + 'printscreen.png')
        # 使用Image的crop函數(shù)，從截圖中再次截取我們需要的區(qū)域
        fimg = i.crop(rangle)
        fimg = fimg.convert('RGB')
        # 保存我們截下來的驗證碼圖片，并讀取驗證碼內容
        fimg.save(screenshot_path + '//' + 'code.png')
        ocr = ddddocr.DdddOcr()
        with open(screenshot_path + '//' + 'code.png', 'rb') as f:
            img_bytes = f.read()
        self.res = ocr.classification(img_bytes)
        print('識別出的驗證碼為：' + self.res)

    # 判斷驗證碼錯誤時的提示信息是否存在
    def isElementPresent(self, by, value):
        try:
            element = self.driver.find_element(by=by, value=value)
        except NoSuchElementException:
            pass
            # 發(fā)生了NoSuchElementException異常，說明頁面中未找到該元素，返回False
            return False
        else:
            # 沒有發(fā)生異常，表示在頁面中找到了該元素，返回True
            return True

	# 登錄
    def login(self):
        self.getVerification()
        self.driver.find_element(By.XPATH, '用戶名輸入框Xpath定位').send_keys('用戶名')
        self.driver.find_element(By.XPATH, '密碼輸入框Xpath定位').send_keys('密碼')
        self.driver.find_element(By.XPATH, '驗證碼輸入框Xpath定位').send_keys(self.res)
        sleep(1)
        self.driver.find_element(By.XPATH, '登錄按鈕Xpath定位').click()
        sleep(2)
		isFlag = True
        while isFlag:
            try:
                isPresent = self.isElementPresent(By.XPATH, '驗證碼錯誤時的提示信息Xpath定位')
                if isPresent is True:
                    codeText = self.driver.find_element(By.XPATH, '驗證碼錯誤時的提示信息Xpath定位').text
                    if codeText == "驗證碼不正確":
                        self.getVerification()
                        sleep(2)
                        self.driver.find_element(By.XPATH, '驗證碼輸入框Xpath定位').clear()
                        sleep(1)
                        self.driver.find_element(By.XPATH, '驗證碼輸入框Xpath定位').send_keys(self.res)
                        sleep(1)
                        self.driver.find_element(By.XPATH, '登錄按鈕Xpath定位').click()
                        sleep(2)
                    tips = self.driver.find_element(By.XPATH,
                                                    '未輸入驗證碼時的提示信息Xpath定位').text
                    if tips == "請輸入驗證碼":
                        self.getVerification()
                        sleep(2)
                        self.driver.find_element(By.XPATH, '驗證碼輸入框Xpath定位').click()
                        sleep(1)
                        self.driver.find_element(By.XPATH, '驗證碼輸入框Xpath定位').send_keys(self.res)
                        sleep(1)
                        self.driver.find_element(By.XPATH, '登錄按鈕Xpath定位').click()
                        sleep(2)
                    continue
                else:
                    print("驗證碼正確，登錄成功！")
            except NoSuchElementException:
                pass
            else:
                isFlag = False
                
        sleep(5)
        self.driver.quit()


if __name__ == '__main__':
    GetVerificationCode().login()

識別結果