如何使用SeleniumPython抓取實時股票報價

我需要撰寫一個小應用程式來獲取 Money18.on.cc 上我學校專案的實時報價。我的目標是獲取所有顯示的資料。我嘗試了 Selenium 帶有代碼串列 ["700", "3690", "1"]，但結果看起來很奇怪，例如，有時所有 3 個結果都相同或相應價格的順序錯誤。這是我的代碼：

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

webdriverPath = getFileContentItem("all_file_path.txt", "chromeWebdriverDir")
s = Service(webdriverPath)
driver = webdriver.Chrome(service = s)
driver.implicitly_wait(10)
driver.set_page_load_timeout(20)
print("Successful open browser...")


tickerList = ["700", "3690", "1"]
money18Link = "https://money18.on.cc/eng/info/hk/liveinfo_quote_00700.html"
print(f"money18Link:\n{money18Link}")
driver.get(money18Link)
driver.find_element(By.XPATH, '//div[@]/img').click() # remove the AD from the main window

for ticker in tickerList:
    driver.get(money18Link)
    inputElem = driver.find_element(By.CSS_SELECTOR, '[]')
    inputElem = myElem = WebDriverWait(driver, 20).until(EC.presence_of_element_located((By.CSS_SELECTOR, '[]')))
    inputElem.click()
    inputElem.clear()
    inputElem.send_keys(ticker)
    inputElem.send_keys(Keys.ENTER)

    print(f"ticker: {ticker} is running...")
    driver.switch_to.default_content()
    curPx = driver.find_element(By.XPATH, '//div[@]/div[4]/div[1]/div/div/div[1]/span[@]').text
    print(f"curPx: {curPx}")

下面的幾個結果場景看起來很奇怪，報廢的股票價格與其股票代碼不對應：

Scen 1:
ticker: 700 is running...
curPx: 374.400
ticker: 3690 is running...
curPx: 374.400
ticker: 1 is running...
curPx: 374.400

Scen 2:
ticker: 700 is running...
curPx: 374.400
ticker: 3690 is running...
curPx: 374.400
ticker: 1 is running...
curPx: 155.200

uj5u.com熱心網友回復：

您不需要使用 selenium，因為有一個 JSON API。

看看這個例子：

import time

import requests

headers = {
    'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36 OPR/83.0.4254.62',
}

api_url = 'https://realtime-money18-cdn.on.cc/securityQuote/genStockDetailHKJSON.php'

stockcodes = ['700', '3690', '1']

while True:
    for code in stockcodes:
        params = {'stockcode': code}

        r = requests.get(api_url, headers=headers, params=params)
        data = r.json()
        price = data['real']['ltp']
        print(f'Price for code {code} = {price}')

    print()
    time.sleep(5)

這是輸出：

Price for code 700 = 374.400
Price for code 3690 = 155.200
Price for code 1 = 56.750

uj5u.com熱心網友回復：

要列印stock_number和stock_value您可以使用以下定位器策略：

• 使用CSS_SELECTOR：

  driver.get("https://money18.on.cc/eng/info/hk/liveinfo_quote_00700.html")
  WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "div.industryClose>img"))).click()
  stock_number = WebDriverWait(driver, 20).until(EC.presence_of_element_located((By.CSS_SELECTOR, "input.stockInput.stock-number"))).get_attribute("value")
  stock_value = WebDriverWait(driver, 20).until(EC.presence_of_element_located((By.CSS_SELECTOR, "div.text-right.stock-price span.value"))).text
  print(f"{stock_number} is {stock_value}")
  

• 使用XPATH：

  driver.get("https://money18.on.cc/eng/info/hk/liveinfo_quote_00700.html")
  WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//div[@class='industryClose']/img"))).click()
  stock_number = WebDriverWait(driver, 20).until(EC.presence_of_element_located((By.XPATH, "//input[@class='stockInput stock-number']"))).get_attribute("value")
  stock_value = WebDriverWait(driver, 20).until(EC.presence_of_element_located((By.XPATH, "//div[@class='text-right stock-price']//span[@class='value']"))).text
  print(f"{stock_number} is {stock_value}")
  

• 控制臺輸出：

  00700 is 374.400
  

• 注意：您必須添加以下匯入：

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

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