我正在尝试发送一个应包含
的HTTP标头Connection:keep-alive
但是当我使用：
添加标题时br = mechanize.Browser()
br.addheaders[('Connection','keep-alive')'''and some other headers''']
并使用Fiddler4发送请求并分析发送的标头，我得到连接状态：
Connection:'close'
如何才能让会议保持活力
这是我试图用python mechanize发送的标题，结果是
HTTPError：HTTP错误408：请求超时
POST http://site21.way2sms.com/smstoss.action HTTP/1.1
Origin: http://site21.way2sms.com
Content-Length: 94
Accept-Language: en-US,en;q=0.8
Accept-Encoding: gzip, deflate
Connection: close
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Upgrade-Insecure-Requests: 1
Host: site21.way2sms.com
Referer: http://site21.way2sms.com/sendSMS? Token=4A0CB0CC3FD1F0EE7985FFB44E04C6B7.w814
Cache-Control: max-age=0
Cookie: _gat=1; JSESSIONID=A08~4A0CB0CC3FD1F0EE7985FFB44E04C6B7.w814; _ga=GA1.2.1739915090.1432824367
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36
Content-Type: application/x-www-form-urlencoded
ssaction=ss&Token=4A0CB0CC3FD1F0EE7985FFB44E04C6B7.w814&mobile=9765272851&message=6&msgLen=139
这是浏览器发送的标题，显示预期的结果：
POST http://site21.way2sms.com/smstoss.action HTTP/1.1
Host: site21.way2sms.com
Connection: keep-alive
Content-Length: 94
Cache-Control: max-age=0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Origin: http://site21.way2sms.com
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36
Content-Type: application/x-www-form-urlencoded
Referer: http://site21.way2sms.com/sendSMS? Token=877AAB22C3F0B1C3D15F71C04C8AB85C.w804
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
Cookie: _gat=1; JSESSIONID=A04~877AAB22C3F0B1C3D15F71C04C8AB85C.w804; _ga=GA1.2.1739915090.1432824367
ssaction=ss&Token=877AAB22C3F0B1C3D15F71C04C8AB85C.w804&mobile=9765272851&message=3&msgLen=139