远程上传shp文件后添加到SDE已有的FeatureClass里

最新推荐文章于 2022-05-23 00:17:38 发布

最新推荐文章于 2022-05-23 00:17:38 发布 · 250 阅读

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#编程 #Web

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本文介绍了一种远程web上传shp文件，并将这些文件中的Feature添加到指定SDE数据库中已存在FeatureClass的方法。该过程涉及文件上传、读取shp文件中的Feature以及将Feature插入SDE数据库。

功能：远程web上传shp文件，然后添加到指定的SDE已经存在的FeatureClass里

思路：读取shp里的Feature，编程连接到SDE，打开指定的FeatureClass，然后插入。

缺点：现在只能适用没有注册为版本的FeatureClass，在测试过程中，如果注册为版本，则运行报“Objects in this class cannot be updated outside an edit session ” 这个错误，一直不知道怎么解决，还请高手指点。

效果图：

主要实现代码：

文件上传功能实现：

private void UpLoadFiles()
    {
        string filepath = Server.MapPath("./") + "UpLoadFiles";

        HttpFileCollection uploadedFiles = Request.Files;
        for (int i = 0; i < uploadedFiles.Count; i++)
        {
            HttpPostedFile userPostedFile = uploadedFiles[i];
            try
            {
                if (userPostedFile.ContentLength > 0)
                {
                    userPostedFile.SaveAs(filepath + "\\" + System.IO.Path.GetFileName(userPostedFile.FileName));                    
                }
                message.Text = this.ShpFile + "上传成功！";
            }
            catch
            {
                message.Text = this.ShpFile + "上传失败！";
            }
        }
    }

读取shp里的Feature功能实现：

public IFeatureClass GetShpFeatureClass()
    {
        IFeatureClass returnFeatureClass = null;
        //取得服务中的基本信息     
        IServerContext soc = GetSoc();

        string filepath = Server.MapPath("./") + "UpLoadFiles";

        IWorkspaceFactory pWorkspaceFactory = (IWorkspaceFactory)soc.CreateObject("esriDataSourcesFile.ShapefileWorkspaceFactory");
        IFeatureWorkspace pFeatWS = pWorkspaceFactory.OpenFromFile(@filepath, 0) as IFeatureWorkspace;
        //IFeatureLayer pLayer = (IFeatureLayer)pSOC.CreateObject("esriCarto.FeatureLayer");
        returnFeatureClass = pFeatWS.OpenFeatureClass("china-hlj.shp");
        //pLayer.Name = "rivers";
        soc.ReleaseContext();
        return returnFeatureClass;
    }

添加Feature到SDE的功能实现：

public void Add_Fea(string FeaName, IFeature insertFeature)
    {
        IServerContext soc = GetSoc();

        IPropertySet propSet = new PropertySetClass();
        propSet.SetProperty("SERVER", this.SdeServer);
        propSet.SetProperty("INSTANCE", this.SdeInstance);
        propSet.SetProperty("USER", this.SdeUser);
        propSet.SetProperty("PASSWORD", this.SdePassword);
        propSet.SetProperty("VERSION", this.SdeVerson);


        IWorkspaceFactory pWorkSpFac = (IWorkspaceFactory)soc.CreateObject("esriDataSourcesGDB.SDEWorkspaceFactory");
        IFeatureWorkspace pFeaWorkSp = null;
        pFeaWorkSp = (IFeatureWorkspace)(pWorkSpFac.Open(propSet, 0));//打开要素空间
        IFeatureClass FeaCls = pFeaWorkSp.OpenFeatureClass(FeaName);//取得要素集
        IFeatureCursor FeaCursor = FeaCls.Insert(true);
        IFeatureBuffer FeaBuffer = FeaCls.CreateFeatureBuffer(); ;


        IField Fld = new FieldClass();
        IFields Flds = insertFeature.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, insertFeature.get_Value(i));
            }
        }

        FeaCursor.InsertFeature(FeaBuffer);
        soc.ReleaseContext();
        pFeaWorkSp = null;

    }

使用注意事项：在使用时要设置SdeServer、SdeInstance、SdeUser、SdePassword、SdeVerson、FeatureClass等属性。