39 WebGIS Realization Technology Study Based on J2EE
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WebGIS has become one of the primary research directions in GIS. It is an efficient approach for the socialization of GIS. So it is important to research the structure and realization of WebGIS which is interoperable, transplantable, expansible and fit for various platforms. After analyzing and comparing the WebGIS system structure development and its main realization technologies, a realization technology based on J2EE is proposed.