crawlingRetweet(retweet_url, weibo_id)

Extract retweet of original weibo post and insert to database.

1. masterStart(). Create multiple processes to begin crawling data.
2. wapLogIn(). Log in sina Account.
3. weiBoWapSearch(searchStr, Sid). Use searchStr(person name or company name) and search id(person id or company id) to search related weibo
   • extractTopic(person_name or company_name, person_id or company_id). Extract weibo text and insert to database.
   • getRetweet(retweet_url, weibo_id). Extract retweet of original weibo text and insert to database.

None

1. Sina Weibo API is not not so effective, it need to be authorized but the crawler would not pass sina's examine and verify.
2. Using browser’s cookies to log in sina account.
3. Using the url weibo.cn instead of www.weibo.com to crawl data, because the latter one’s tweet data is sealed in javascript and it’s difficult to extract.
4. Using multiple proxies to prevent sina block our ip.
5. For speeding up the crawler, using multiple processes and accounts.