爬虫-在无GUI的CentOS上使用Selenium+Chrome

安装Chromeium: 

## 安装yum源  
[root@spider01 ~]# sudo yum install -y epel-release  
## 安装Chrome  
[root@spider01 ~]# yum install -y chromium

去这个地方：https://sites.google.com/a/chromium.org/chromedriver/downloads 下载ChromeDriver驱动放在/usr/bin/目录下： 

完成结果如下： 

[root@spider01 ~]# ll /usr/bin/ | grep chrom  
-rwxrwxrwx. 1 root root   7500280 11月 29 17:32 chromedriver  
lrwxrwxrwx. 1 root root        47 11月 30 09:35 chromium-browser -> /usr/lib64/chromium-browser/chromium-browser.sh

安装XVFB： 

[root@spider01 ~]# yum install Xvfb -y  
[root@spider01 ~]# yum install xorg-x11-fonts* -y

新建在/usr/bin/ 一个名叫 xvfb-chromium 的文件写入以下内容： 

[root@spider01 ~]# cat /usr/bin/xvfb-chromium   
#!/bin/bash  
  
_kill_procs() {  
  kill -TERM $chromium  
  wait $chromium  
  kill -TERM $xvfb  
}  
  
# Setup a trap to catch SIGTERM and relay it to child processes  
trap _kill_procs SIGTERM  
  
XVFB_WHD=${XVFB_WHD:-1280x720x16}  
  
# Start Xvfb  
Xvfb :99 -ac -screen 0 $XVFB_WHD -nolisten tcp &  
xvfb=$!  
  
export DISPLAY=:99  
  
chromium --no-sandbox --disable-gpu$@ &  
chromium=$!  
  
wait $chromium  
wait $xvfb

更改软连接 

## 更改Chrome启动的软连接  
[root@spider01 ~]# ln -s /usr/lib64/chromium-browser/chromium-browser.sh /usr/bin/chromium  
  
  
[root@spider01 ~]# rm -rf /usr/bin/chromium-browser  
  
[root@spider01 ~]# ln -s /usr/bin/xvfb-chromium /usr/bin/chromium-browser  
  
[root@spider01 ~]# ln -s /usr/bin/xvfb-chromium /usr/bin/google-chrome  
  
[root@spider01 ~]# ll /usr/bin/ | grep chrom*  
-rwxrwxrwx. 1 root root   7500280 11月 29 17:32 chromedriver  
lrwxrwxrwx. 1 root root        47 11月 30 09:47 chromium -> /usr/lib64/chromium-browser/chromium-browser.sh  
lrwxrwxrwx. 1 root root        22 11月 30 09:48 chromium-browser -> /usr/bin/xvfb-chromium  
-rwxr-xr-x. 1 root root     73848 12月  7 2016 chronyc  
lrwxrwxrwx. 1 root root        22 11月 30 09:48 google-chrome -> /usr/bin/xvfb-chromium  
-rwxrwxrwx. 1 root root       387 11月 29 18:16 xvfb-chromium

>>> from selenium import webdriver  
>>> driver = webdriver.Chrome()  
>>> driver.get("http://www.baidu.com")  
>>> driver.find_element_by_xpath("./*//input[@id='kw']").send_keys("哎哟卧槽")  
>>> driver.find_element_by_xpath("./*//input[@id='su']").click()  
>>> driver.page_source