我正在尝试使用 Mapserver 生成的 GML 来创建带有 openlayers 的弹出窗口,如果数据源来自 shp 文件,则一切正常,但是,postgis 数据源会带来异常,例如“这可能是由于堆损坏,这表明HTTPFormServer.exe 或它已加载的任何 DLL 中的错误。” 另一个,如果我只是从 postgis 读取图层数据来渲染标签而不是 WFS,它也可以正常工作
谁能帮忙告诉一下发生了什么?
环境:mapserver5.6.1、postgis8.4、openlayers2.10
对于 shp 数据源,有效
LAYER
NAME poi_point
METADATA
"wfs_title" "poi_point" ##REQUIRED
"wfs_typename" "poi_point" ## REQUIRED
"gml_include_items" "all" ## Optional (serves all attributes for layer)
"gml_featureid" "ID" ## REQUIRED
"gml_geometries" "geometry"
"gml_geometry_type" "point"
END
PROJECTION
"proj=latlong"
"ellps=GRS80"
"datum=NAD27"
END
DATA poi_point
STATUS ON
TYPE POINT
DUMP TRUE
MAXSCALEDENOM 2400
CLASS
STYLE
COLOR 0 0 0
OUTLINECOLOR 255 255 255
END
END
END
对于 postgis 数据源,发生异常
LAYER
NAME poi_point
DATA "the_geom from poi_point"
METADATA
"wfs_title" "poi_point" ##REQUIRED
"wfs_typename" "poi_point" ## REQUIRED
"gml_include_items" "all" ## Optional (serves all attributes for layer)
"gml_featureid" "ID" ## REQUIRED
"gml_geometries" "geometry"
"gml_geometry_type" "point"
END
PROJECTION
"proj=latlong"
"ellps=GRS80"
"datum=NAD27"
END
CONNECTION "user=postgres password=springtime dbname=postgis host=localhost port=5432"
CONNECTIONTYPE postgis
STATUS ON
TYPE POINT
DUMP TRUE
MAXSCALEDENOM 2400
CLASS
STYLE
COLOR 0 0 0
OUTLINECOLOR 255 255 255
END
END
END