1st non-Ad search item

[superburn]

Test3 commit

[caojiele]

Hi, I come from two aspects of code review, respectively from the Angle of mission requirements to realize and code implementation point of view to review.

First, requirements implementation point of view. I think have the following：

• Need to define a mechanism provides the user to enter search keywords.My understanding is that there should be a simple web page, provide an input box, a search button.
• Search results to show in the web page.
• We all know that the UT coverage must > 80% if not 100%, Code test cases are too simple, coverage rate is far lower than 80%.

And then, code implementation point of view. I think have the following：

• baidu.com page elements rules is variable, and suggested that "the first advertisement search results" matching rules designed to configure, instead of writing in the code.
• WebPageUtil class responsibilities advice designed to general tools, rather than a specific business code coupling.
• Considering the expansibility, KeyWordSearchService should be designed as a interface, to support different search sites of their implementation.