Python 如何在SeleniumWebDriver Firefox中从'driver.page_source'获取HTTP请求的原始JSON响应
如果我浏览到,我希望得到以下JSON响应:Python 如何在SeleniumWebDriver Firefox中从'driver.page_source'获取HTTP请求的原始JSON响应,python,json,selenium,selenium-webdriver,httpresponse,Python,Json,Selenium,Selenium Webdriver,Httpresponse,如果我浏览到,我希望得到以下JSON响应: { "headers": { "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Accept-Encoding": "gzip, deflate, br", "Accept-Language": "en-US,en;q=0.5", "Connection": "close", "Host": "h
{
"headers": {
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"Accept-Encoding": "gzip, deflate, br",
"Accept-Language": "en-US,en;q=0.5",
"Connection": "close",
"Host": "httpbin.org",
"Upgrade-Insecure-Requests": "1",
"User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:64.0) Gecko/20100101 Firefox/64.0"
}
}
但是,如果我使用硒
from selenium import webdriver
from selenium.webdriver.firefox.options import Options
options = Options()
options.headless = True
driver = webdriver.Firefox(options=options)
url = 'https://httpbin.org/headers'
driver.get(url)
print(driver.page_source)
driver.close()
我明白了
{
“标题”:{
“接受”:“text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8”,
“接受编码”:“gzip,deflate,br”,
“接受语言”:“en-US,en;q=0.5”,
“连接”:“关闭”,
“主机”:“httpbin.org”,
“升级不安全请求”:“1”,
“用户代理”:“Mozilla/5.0(X11;Ubuntu;Linux x86_64;rv:64.0)Gecko/20100101 Firefox/64.0”
}
}
HTML标签来自哪里?如何从
driver.page\u source
获取HTTP请求的原始JSON响应?除了原始JSON响应,driver.page\u source
还包含在浏览器中“漂亮打印”响应的HTML。如果使用FirefoxDOM和样式检查器在浏览器中查看JSON响应的源代码,您将得到相同的结果
要获得原始JSON响应,您可以像往常一样导航HTML元素:
print(driver.find_element_by_xpath("//div[@id='json']").text)
在url中使用“查看源:”参数
简单模式:
例如:
url = 'view-source:https://httpbin.org/headers'
driver.get(url)
content = driver.page_source
print(content)
{'headers': {'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'Accept-Encoding': 'gzip, deflate, br',
'Accept-Language': 'en-US,en;q=0.5',
'Host': 'httpbin.org',
'Upgrade-Insecure-Requests': '1',
'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:67.0) Gecko/20100101 Firefox/67.0'}}
输出:
'<html><head><meta name="viewport" content="width=device-width"><title>https://httpbin.org/headers</title><link rel="stylesheet" type="text/css" href="resource://content-accessible/viewsource.css"></head><body id="viewsource" class="highlight" style="-moz-tab-size: 4"><pre>{\n "headers": {\n "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", \n "Accept-Encoding": "gzip, deflate, br", \n "Accept-Language": "en-US,en;q=0.5", \n "Host": "httpbin.org", \n "Upgrade-Insecure-Requests": "1", \n "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:67.0) Gecko/20100101 Firefox/67.0"\n }\n}\n</pre></body></html>'
from selenium.webdriver.firefox.options import Options as FirefoxOptions
@staticmethod
def get_firefox_options(headless):
options = FirefoxOptions()
options.set_preference('devtools.jsonview.enabled', False)
if headless:
options.headless = True
return options
输出:
'<html><head><meta name="viewport" content="width=device-width"><title>https://httpbin.org/headers</title><link rel="stylesheet" type="text/css" href="resource://content-accessible/viewsource.css"></head><body id="viewsource" class="highlight" style="-moz-tab-size: 4"><pre>{\n "headers": {\n "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", \n "Accept-Encoding": "gzip, deflate, br", \n "Accept-Language": "en-US,en;q=0.5", \n "Host": "httpbin.org", \n "Upgrade-Insecure-Requests": "1", \n "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:67.0) Gecko/20100101 Firefox/67.0"\n }\n}\n</pre></body></html>'
from selenium.webdriver.firefox.options import Options as FirefoxOptions
@staticmethod
def get_firefox_options(headless):
options = FirefoxOptions()
options.set_preference('devtools.jsonview.enabled', False)
if headless:
options.headless = True
return options
本文帮助我解决了firefox的问题: 我已将此首选项添加到我的驱动程序工厂:
如果您执行F12并切换到Inspector选项卡,您将看到HTML,而不是JSON。它与SeleniumYou无关,您可以使用类似的工具获取原始源代码,如
requests.get('https://httpbin.org/headers').json()
而不进行处理DOM@Andersson考虑到这一点,我非常肯定httpbin.org应该根据请求中的Accept
标题提供不同的内容。python的请求
的默认值为“/”,因此服务器返回到应用程序json——因此测试结果不是例外(如果响应是html字符串,则.json()
会引发一个异常)。@Todomnakov,取决于可能使用的响应类型.text
或.content
,但由于问题是“如何获得原始JSON响应…”,我使用了.JSON()
,我的意思不同(不是“应该使用响应对象的哪个属性”),我可能没有清楚地解释自己-httpbin.org为不同的客户端返回不同的数据;这是基于“接受”标题的。对于浏览器客户端,它返回html,其中一个节点的值为“json”;对于可以接受它的客户端(如请求
lib),它直接返回json响应。因此,您的注释中的代码是开箱即用的——服务器没有返回“屏蔽html”,响应中的负载是正确的json。