====== crawlingCompanyRelatedWeiboOriginalPost(stock_id, company_name) ======
===== Description =====
Extract company related original weibo post from sina weibo and insert to database.
===== Parameters =====
^  Parameter  ^  Necessity  ^  Type  ^  Description  ^
|  stock_id  |  required  |  int  |  company id  |
|  company_name  |  required  |  string  |  company name need to crawl  |

===== Output =====
^ Parameters ^ Type ^ Description ^
| status | string | show the crawler running status |

===== Implementation =====
  - masterStart(). Create multiple processes to begin crawling data.
  - wapLogIn(). Log in sina Account.
  - weiBoWapSearch(company_name, stock_id). Use company name and company id to search company related weibi and insert in database.
    * extractTopic(company_name, company_id). Extract weibo text and insert to database.

===== Related Work =====
None
===== Issues About The Crawler =====
  - Sina Weibo API is not not so effective, it need to be authorized but the crawler would not pass sina's examine and verify. 
  - Using browser’s cookies to log in sina account.
  - 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.
  - Using multiple proxies to prevent sina block our ip.
  - For speeding up the crawler, using multiple processes and accounts.