arcobject创建featureclass
private IFeatureClass createFeatureClass(IServerContext sc,IFeatureWorkspace fws, ISpatialReference spatialReference) throws Exception{ IFeatureClass fClass ; IFields fields =(Fields)sc.createObject(Fields.getClsid()); IFieldsEdit fieldsEdit = (IFieldsEdit)fields; fieldsEdit.setFieldCount(3); //创建对象id字段 IField field = (Field)sc.createObject(Field.getClsid()); IFieldEdit fieldEdit = (IFieldEdit)field; fieldEdit.setName("OBJECTID"); fieldEdit.setAliasName("OBJECTID"); fieldEdit.setType(esriFieldType.esriFieldTypeOID); fieldsEdit.setFieldByRef(0, field); //创建几何形状字段 IField field1 = (Field)sc.createObject(Field.getClsid()); fieldEdit = (IFieldEdit)field1; //为形状字段建立几何定义 IGeometryDef geometryDef =(GeometryDef)sc.createObject(GeometryDef.getClsid()); IGeometryDefEdit geometryDefEdit = (IGeometryDefEdit)geometryDef; geometryDefEdit.setGeometryType(esriGeometryType.esriGeometryPoint); geometryDefEdit.setGridCount(1); geometryDefEdit.setGridSize(0, 0); //gridesize基于初次装载或者插入的features geometryDefEdit.setHasM(false); geometryDefEdit.setHasZ(false); //配置空间参考，从feature dataset中继承 if (spatialReference != null) { geometryDefEdit.setSpatialReferenceByRef(spatialReference); } //设置标准字段属性 fieldEdit.setName("SHAPE"); fieldEdit.setType(esriFieldType.esriFieldTypeGeometry) ; fieldEdit.setGeometryDefByRef(geometryDef); fieldEdit.setIsNullable(true); fieldEdit.setRequired(true); fieldsEdit.setFieldByRef(1, field1); IField field2 = (Field)sc.createObject(Field.getClsid()); fieldEdit = (IFieldEdit)field2; fieldEdit.setName("USERID"); fieldEdit.setAliasName("USERID"); fieldEdit.setEditable(true); //fieldEdit.setIsNullable(false); fieldEdit.setType(esriFieldType.esriFieldTypeString); fieldsEdit.setFieldByRef(2, field2); //通过指定的CLSID和EXTCLSID来创建一个feature class的描述对象 IFeatureClassDescription fcDesc = (FeatureClassDescription)sc.createObject(FeatureClassDescription.getClsid()); IObjectClassDescription ocDesc = (IObjectClassDescription)fcDesc; fClass = fws.createFeatureClass("FeatureClass_temp", fields, ocDesc.getInstanceCLSID(), ocDesc.getClassExtensionCLSID(), esriFeatureType.esriFTSimple, "SHAPE", ""); return fClass; }