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分享将GML用于WebService的数据传输的问题
GML3目前支持的数据类型比较丰富和完善, 而GIS方面的WebService需要用于GIS空间数据传输的数据表达格式, 因此GML是比较好的选择, 但问题是如何使用? 我试着建立GML的Binding类, 然后操作这些类, 但是发现开发环境无法正确导入GML Schema(我用的是.Net环境的xsd.exe, 好像XSD.EXE还没有完全支持XML Schema), 难道只能生成GML数据的字符串再传递吗? 这样就不能在WSDL文件中定义类型了...
不知道有没有好的办法?
不知道有没有好的办法?
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iwillsw 2004-09-26
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最近看到德国的Deegree平台，它提供了一个标准的OGC WFS（OGC WFS 1.0.0）地图服务器和一个C/S结构的客户端浏览/转换程序，不过都是Java开发的，提供有源代码。
treeline.fm 2004-09-25
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看来很少人关注GML在WebServices方面的应用了 :(
下面是OpenGIS论坛斑竹creed的回复, 我贴在这里, 希望能有所帮助!
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The OGC members are just finishing a number of interoperability experiments with regard to using SOAP and WSDL with OGC interfaces. The results of this work should be publicly available in the next couple of months. This should answer a number of tour questions. The experiments were run with WMS and WFS. As yuo know, WFS returns a GML payload. However, the actual WSDL work centered on describing WMS and WFS services for use in a web services framework - not on describing a GML service or encapsulation.
I know this does not directly answer your question but I cannot share unfinished OGC member documents with non-members.
下面是OpenGIS论坛斑竹creed的回复, 我贴在这里, 希望能有所帮助!
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The OGC members are just finishing a number of interoperability experiments with regard to using SOAP and WSDL with OGC interfaces. The results of this work should be publicly available in the next couple of months. This should answer a number of tour questions. The experiments were run with WMS and WFS. As yuo know, WFS returns a GML payload. However, the actual WSDL work centered on describing WMS and WFS services for use in a web services framework - not on describing a GML service or encapsulation.
I know this does not directly answer your question but I cannot share unfinished OGC member documents with non-members.
treeline.fm 2004-09-13
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是不是XSD.exe对XML Schema的支持比较有限？因为我发现遇到XML Schema的Import就会出错
lilia 2004-09-13
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关注！
小笨和漂向北方 2004-09-12
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哦，只是听说过某些大学的gis专业开始尝试使用gml＋web service＋java applet来完成web gis，不过是java平台下的。我想gml更多的应该是一种规范的gis 数据的xml传输储存格式，如果你获得的gml库无法和.net兼容，那么可以尝试使用.net的xml类来实现gml库的功能
