eclipse 設置默認編碼爲Utf-8

需要設置的幾處地方爲：

 Window->Preferences->General ->Content Type->Text->JSP 最下面設置爲UTF-8

 Window->Preferences->General->Workspace   面板Text file encoding 選擇UTF-8

 Window->Preferences->Web->JSP Files 面板選擇 ISO 10646/Unicode(UTF-8)