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python?playwright?庫上傳和下載操作(自動(dòng)化測試?playwright)

更新時(shí)間：2023年05月17日 09:33:19 作者：番茄牛腩不吃番茄

這篇文章主要介紹了python?playwright?庫上傳和下載操作(自動(dòng)化測試?playwright?),playwright中的上傳和下載比selenium的上傳和下載要簡便些,本文結(jié)合實(shí)例代碼給大家介紹的非常詳細(xì)，需要的朋友可以參考下

python：自動(dòng)化測試 playwright 庫上傳和下載

今天主要是聊聊playwright中的上傳和下載操作，playwright中的上傳和下載比selenium的上傳和下載要簡便些，例：selenium中的上傳還要有對話框選擇文件，再點(diǎn)擊上傳，而playwright中是找到元素執(zhí)行點(diǎn)擊后設(shè)置一個(gè)文件位置。

上傳

操作語法

# 選擇一個(gè)文件
page.set_input_files('input#upload', 'myfile.pdf')
# 選擇多個(gè)文件
page.set_input_files('input#upload', ['file1.txt', 'file2.txt'])
# 刪除所有選定的文件
page.set_input_files('input#upload', [])
# 從內(nèi)存上傳緩沖區(qū)
page.set_input_files(
    "input#upload",
    files=[
        {"name": "test.txt", "mimeType": "text/plain", "buffer": b"this is a test"}
    ],
)

上述的代碼中這種是那種含輸入元素(它動(dòng)態(tài)創(chuàng)建的)的上傳操作，如果是可點(diǎn)擊的上傳操作，可以直接使用下述語法：

with page.expect_file_chooser() as fc_info:
    page.click("upload")
file_chooser = fc_info.value
file_chooser.set_files("myfile.pdf")

上傳示例
該示例主要演示的是可點(diǎn)擊的上傳操作，動(dòng)態(tài)輸入元素的上傳沒找到對應(yīng)示例：

import time
from playwright.sync_api import sync_playwright
with sync_playwright() as p:
    browser = p.chromium.launch(
        headless=False
    )
    page = browser.new_page()
    page.goto("https://域名/user/login")
    page.click('//*[text()="密碼登錄"]')
    page.click('#user_name')
    page.fill('#user_name', "賬號")
    page.click('#password')
    page.fill('#password', "密碼")
    page.click('//*[text()="登 錄"]')
    time.sleep(2)
    page.click('//*[text()="學(xué)習(xí)資源"]')
    page.click('//*[@href="/manager/resource/directory" rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ]')
    page.click('//*[text()="導(dǎo)入導(dǎo)出"]')
    time.sleep(2)
    with page.expect_file_chooser() as fc_info:
        page.click('//*[text()=" 上傳文件"]')
    file_chooser = fc_info.value
    print(file_chooser)
    file_chooser.set_files('E:\playwrightPyinstaller\導(dǎo)入知識目錄.xlsx')

expect_file_chooser方法是官方提供的上傳方法，不作過多解釋，用就是了
fc_info.value是獲取到了上傳的相關(guān)元素，然后賦值給file_chooser
調(diào)用set_files方法，然后傳入文件路徑

print(file_chooser)打印的結(jié)果如下：

<FileChooser page=<Page url='https://域名/manager/resource/directory'> element=JSHandle@<input type="file" accept=".xlsx,.xls"/>>
Process finished with exit code 0

下載

操作語法

# 開始等待下載
with page.expect_download() as download_info:
    # 執(zhí)行啟動(dòng)下載的操作
    page.click("button#delayed-download")
download = download_info.value
# 等待下載過程完成
path = download.path()

上述代碼是下載的語法，這也是處理文件下載的最簡單方法。

下載示例

import time
from playwright.sync_api import sync_playwright
with sync_playwright() as p:
    browser = p.chromium.launch(
        headless=False
    )
    context = browser.new_context(
        accept_downloads=True
    )
    page = context.new_page()
    page.goto("https://域名/user/login")
    page.click('//*[text()="密碼登錄"]')
    page.click('#user_name')
    page.fill('#user_name', "賬號")
    page.click('#password')
    page.fill('#password', "密碼")
    page.click('//*[text()="登 錄"]')
    time.sleep(2)
    page.click('//*[text()="學(xué)習(xí)資源"]')
    page.click('//*[@href="/manager/resource/directory" rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ]')
    page.click('//*[text()="導(dǎo)入導(dǎo)出"]')
    time.sleep(2)
    with page.expect_download() as download_info:
        page.click('//*[@href="http://域名/template/導(dǎo)入知識目錄.xlsx" rel="external nofollow"  rel="external nofollow" ]')
    download = download_info.value
    print(download)
    print(download.path())

下載和上傳的區(qū)別就是必須要引入上下文，官網(wǎng)提供的上下文就是使用browser.new_context(accept_downloads=True)，方法的括號中必須要有accept_downloads=True，不然運(yùn)行就會(huì)報(bào)錯(cuò)。
expect_download方法是官方提供的下載方法，不作過多解釋，用就是了
download_info.value是獲取到了上傳的相關(guān)元素，然后賦值給download

print(file_chooser)打印的結(jié)果如下：

<Download url='https://域名/template/%E5%AF%BC%E5%85%A5%E7%9F%A5%E8%AF%86%E7%9B%AE%E5%BD%95.xlsx' suggested_filename='導(dǎo)入知識目錄.xlsx'>
Process finished with exit code 0

print(download.path())是獲取下載后的存儲(chǔ)路徑，打印的結(jié)果如下：

C:\Users\lifeng\AppData\Local\Temp\playwright-artifacts-H0nUyZ\2b71684d-7471-4055-9581-6cb364b50efc
Process finished with exit code 0

當(dāng)然您也可以進(jìn)行自定義存儲(chǔ)路徑，這個(gè)官方也是提供了相應(yīng)方法：

import time
from playwright.sync_api import sync_playwright
with sync_playwright() as p:
    browser = p.chromium.launch(
        headless=False
    )
    context = browser.new_context(
        accept_downloads=True
    )
    page = context.new_page()
    page.goto("https://lms3.9first.com/user/login")
    page.click('//*[text()="密碼登錄"]')
    page.click('#user_name')
    page.fill('#user_name', "賬號")
    page.click('#password')
    page.fill('#password', "密碼")
    page.click('//*[text()="登 錄"]')
    time.sleep(2)
    page.click('//*[text()="學(xué)習(xí)資源"]')
    page.click('//*[@href="/manager/resource/directory" rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ]')
    page.click('//*[text()="導(dǎo)入導(dǎo)出"]')
    time.sleep(2)
    with page.expect_download() as download_info:
        page.click('//*[@href="http://域名/template/導(dǎo)入知識目錄.xlsx" rel="external nofollow"  rel="external nofollow" ]')
    download = download_info.value
    download.save_as('E:\playwrightPyinstaller\導(dǎo)入知識目錄.xlsx')

download.save_as(path)方法即是官方提供的自定義路徑存儲(chǔ)，path路徑必須要是路徑和文件名稱在一起，不然就會(huì)拋出權(quán)限不足的錯(cuò)誤異常。

以上總結(jié)或許能幫助到你，或許幫助不到你，但還是希望能幫助到你，如有疑問、歧義，直接私信留言會(huì)及時(shí)修正發(fā)布；非常期待你的點(diǎn)贊和分享喲，謝謝！

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