Research on data exchange without refreshing based on web services

Publishing real data by web,showing spot's information has become modern industrial's hot topic. With advanced technology of java script and web services,a new method for data exchange without refreshing,which is based on B/S structural application system,is introduced,this method update part page dynamic without refreshing full page,settle the problem of page dithering and so on,and finally,it's application in the long-distance supervision and controlling system for environmental protection are introduced.