python+playwright 学习-35.获取页面的完整 HTML 内容

前言

selenium 里面有个driver.page_source 可以获取整个html页面的内容，playwright里面也有类似的方法 使用 page.content()

page.content() 获取html内容

使用示例

from playwright.sync_api import sync_playwright
# 上海悠悠 wx:283340479
# blog:https://www.cnblogs.com/yoyoketang/


with sync_playwright() as p:
    browser = p.chromium.launch(headless=False)
    context = browser.new_context()
    page = context.new_page()

    page.goto("https://www.cnblogs.com/yoyoketang/")
    print(page.content())

对于喜欢爬虫的小伙伴就可以去抓取页面上的内容了。

inner_html() 与 inner_text()

page.content() 是获取整个页面的HTML,如果我们只需获取某个元素的HTML，如下图

可以使用locator().inner_html() 方法获取

• inner_html() 获取元素的整个html源码内容
• inner_text() 获取元素的文本内容

from playwright.sync_api import sync_playwright
# 上海悠悠 wx:283340479
# blog:https://www.cnblogs.com/yoyoketang/


with sync_playwright() as p:
    browser = p.chromium.launch(headless=False)
    context = browser.new_context()
    page = context.new_page()

    page.goto("https://www.cnblogs.com/yoyoketang/")
    # print(page.content())
    # 获取某个元素的HTML
    blog = page.locator('#blogTitle')
    print(blog.inner_html())
    print('-------------上海-悠悠----------------------')
    print(blog.inner_text())

text_content() 与 inner_text() 获取页面文本

text_content() 用来获取某个元素内所有文本内容，包含子元素内容，隐藏元素也能获取。
inner_text() 的返回值会被格式化 ,但是text_content()的返回值不会被格式化
最重要的区别 inner_text()返回的值, 依赖于页面的显示, text_content()依赖于代码的内容

from playwright.sync_api import sync_playwright
# 上海悠悠 wx:283340479
# blog:https://www.cnblogs.com/yoyoketang/


with sync_playwright() as p:
    browser = p.chromium.launch(headless=False)
    context = browser.new_context()
    page = context.new_page()

    page.goto("https://www.cnblogs.com/yoyoketang/")
    # print(page.content())
    # 获取某个元素的HTML
    blog = page.locator('#blogTitle')
    # print(blog.inner_html())
    # print('-------------上海-悠悠----------------------')
    # print(blog.inner_text())
    print(blog.text_content())

all_inner_texts() 与 all_text_contents()

all_inner_texts() 和 all_text_contents() 也是用于获取页面上的文本，但是返回的是list列表

from playwright.sync_api import sync_playwright
# 上海悠悠 wx:283340479
# blog:https://www.cnblogs.com/yoyoketang/


with sync_playwright() as p:
    browser = p.chromium.launch(headless=False)
    context = browser.new_context()
    page = context.new_page()

    page.goto("https://www.cnblogs.com/yoyoketang/")
    # print(page.content())
    # 获取某个元素的HTML
    blog = page.locator('#blogTitle')
    # print(blog.inner_html())
    # print('-------------上海-悠悠----------------------')
    # print(blog.inner_text())
    # print(blog.text_content())

    print(blog.all_inner_texts())
    print('-------------上海-悠悠----------------------')
    print(blog.all_text_contents())

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