Shape数据上传至SDE数据库中，动态更新Mapservice的解决方案之一

写这个程序的目的是在不重启MapService的前提下更新数据，并让所有使用这个MapService

的用户能够看到数据更新，但是这个程序有不完善的地方，没有实现注记的上传，这个哪个高手实现了，请告诉我！

 

数据准备:在Sde中建立类型为”Point Features”的featureclass（这个我是在ArcCatalog中实现的）当然也可以建立其他类型的，如polyline、polygon、annotation的featureclass，本文为方便讲解，只进行point类型的shape文件上传，如果对坐标系统有要求的话，可以选择坐标系，其他默认下一步，到最后一步时，如下图所示

 

 

可以点击Imort按钮导入字段参照的模板，这个可以选择对应的shape文件导入，ok，这里就创建完成了，命名为myTestPointFeatureclass

 

这里完成了第一步，其次创建一个空的MXD文档，将建好的myTestPointFeatureclass作为mxd的一个图层，保存。

 

最后一个，发布Mapservice，需要注意的是要把timetous中时间调长一些，不要使用默认，因为在使用IServerContant时可能长时间使用不释放，会出现timeout的错误，这只是我自己的理解。

 

前期的准备工作做完了，简单介绍下参数

假设SDE数据库的连接参数为:

Server:192.168.1.43

Service:5151

UserName:gis_map_sh

Password:gisgis

Verstion:sde.DEFAULT

 

其他参数：hostName=”localhost”

mapServiceName=”myTestMapService”

 

下面开始上代码:

获取上下文,在Arcserver开发中IServerContext是非常重要的，很像一个很重要的中转站，缺少它就跑不起来了。

IServerContext servercontext = GetServerContext(configObj.hostname, configObj.mapserviceName);

//创建server的上下文

 private IServerContext GetServerContext(string _hostName,string _mapServiceName)

  {

            try

            {

                ESRI.ArcGIS.Server.IServerObjectManager pServerObjectManager;

         

                //使用ADF 连接类库

                ESRI.ArcGIS.ADF.Connection.AGS.AGSServerConnection agsServerConnection =

                        new ESRI.ArcGIS.ADF.Connection.AGS.AGSServerConnection();

                agsServerConnection.Host = _hostName;

                agsServerConnection.Connect();

 

                pServerObjectManager = agsServerConnection.ServerObjectManager;

 

                //创建特定Mapservice的mapserver上下文

                ESRI.ArcGIS.Server.IServerContext serverContext =

                     pServerObjectManager.CreateServerContext(_mapServiceName, "MapServer");

 

                return serverContext;

            }

            catch

            {

                return null;

            }

        }

 

接下来打开shape文件所在的Directory

IWorkspaceFactory wf =servercontext.CreateObject("esriDataSourcesFile.ShapefileWorkspaceFactory")  as IWorkspaceFactory;

IFeatureWorkspace fws=wf.OpenFromFile(ShapeFileDirectory,0) as IFeatureWorkspace;

 

打开shape文件，其中feaname为shape文件名

IFeatureClass pFeatureaClass = fws.OpenFeatureClass(featname);

IQueryFilter queryFilter = new ESRI.ArcGIS.Geodatabase.QueryFilter();

 

AddFeatureClassToSde(pFeatureaClass, myTestPointFeatureclass, hostname, mapserviceName, this.sdeserver, this.sdeinstance, this.sdeusername, this.sdepassword, this.sdeversion);

 

下面为AddFeatureClassToSde

public bool AddFeatureClassToSde(IFeatureClass insertFeatureClass, string sdefeaName, string hostname, string mapservicename, string sdeServer, string sdeInstance, string sdeUser, string sdePassWord, string sdeVersion)      

 {           

m_AoInitializa.Initialize(esriLicenseProductCode.esriLicenseProductCodeEngineGeoDB);

            IServerContext soc = GetServerContext(hostname, mapservicename);

            IPropertySet propSet = new PropertySetClass();

            propSet.SetProperty("SERVER", sdeserver);

            propSet.SetProperty("INSTANCE", sdeinstance);

            propSet.SetProperty("USER", sdeUser);

            propSet.SetProperty("PASSWORD", sdepassword);

            propSet.SetProperty("VERSION", sdeversion);

 

            try

            {

                IWorkspaceFactory pwf = (IWorkspaceFactory)soc.CreateObject("esriDataSourcesGDB.SDEWorkspaceFactory");

                IFeatureWorkspace pFeatureWorkspace = (IFeatureWorkspace)(pwf.Open(propSet, 0));

                IFeatureClass feaClass = pFeatureWorkspace.OpenFeatureClass(sdefeaName);

                IFeatureCursor feaCursor = feaClass.Insert(true);

                IQueryFilter queryFilter = new QueryFilterClass();

 

 

                int count = insertFeatureClass.FeatureCount(queryFilter);

                InsertFeatureToSde(count, 0, insertFeatureClass, feaClass, feaCursor);

 

                pFeatureWorkspace = null;

 

                return true;

            }

            catch

            {

                return false;

            }

            finally

            {

                soc.ReleaseContext();

            }

 

        }

其中加入了InsertFeatureToSde方法，是因为在上传过程中出现了“The number of points is less than required for feature”的错误，查了很久也没有很好的解决方法，有人说是ESRI的bug，呵呵，但是我们不能让程序因为一条记录出错就停下来，如果需要能够查看出错记录，可以插入日志功能~~

 

/// <summary>

        /// 将Feature插入到SDE中 递归插入，某条数据出错后直接跳入下一条记录

        /// </summary> 

        private void InsertFeatureToSde(int _featurecount, int _startindex, IFeatureClass _insertFeatureClass, IFeatureClass _sdeFeatureClass, IFeatureCursor _featureCursor)

        {

            int m = _startindex;

            try

            {

                for (; m < _featurecount; m++)

                {

                    IFeature feature = _insertFeatureClass.GetFeature(m);

                    IFeatureBuffer feaBuffer = _sdeFeatureClass.CreateFeatureBuffer();

 

                    IField fld = new FieldClass();

                    IFields flds = feature.Fields;

                    for (int i = 0; i < flds.FieldCount; i++)

                    {

                        fld = flds.get_Field(i);

                        int index = feaBuffer.Fields.FindField(fld.Name);

                        if (index != -1)

                        {

                            feaBuffer.set_Value(index, feature.get_Value(i));

                        }

                    }

 

                    _featureCursor.InsertFeature(feaBuffer);

                }

            }

            catch

            {

                m = m + 1;

                if (m < _featurecount)

                {

                    InsertFeatureToSde(_featurecount, m, _insertFeatureClass, _sdeFeatureClass, _featureCursor);

                }

            }

        }

 

这里只能是实现shape文件，我一直在找上传annotation featureclass 的方法，但一直无果，希望达人指点