JAVA+ArcEngine开发（二）：java arcengine连接sde示例代码

     1）首先建立一个ArcGis Engine Project：EngineProject

     2）在工程文件上新建一个类DataImport

import java.io.IOException;
import javax.swing.JFrame;
import com.esri.arcgis.system.AoInitialize;
import com.esri.arcgis.system.EngineInitializer;
import com.esri.arcgis.datasourcesGDB.SdeWorkspaceFactory;
import com.esri.arcgis.geodatabase.*;
import com.esri.arcgis.system.*;


public class DataImport {
    
    public static void main(String[] args) 
    {
        getSDETable();
    }
    
    public static void getSDETable() {
        try {
        
            initializeArcGISLicenses();
            
            
            SdeWorkspaceFactory sdeFact = new SdeWorkspaceFactory();

            // Create a PropertySet object that will contain all of the
            // SDE connection parameters
            PropertySet propSet = new PropertySet();

            // Populate the property set with the connection parameters
            propSet.setProperty("SERVER", "192.168.2.24");
            propSet.setProperty("INSTANCE", "5151");
            propSet.setProperty("DATABASE", "testsde");
            propSet.setProperty("USER", "sde");
            propSet.setProperty("PASSWORD", "wt");
            propSet.setProperty("VERSION", "sde.DEFAULT");

            // Open the ArcSDE workspace using the connection PropertySet
            Workspace ws = new Workspace(sdeFact.open(propSet, 0));

            // Get the collection of dataset names in the database and display their names
            IEnumDatasetName dsNames = ws
                    .getDatasetNames(esriDatasetType.esriDTAny);

            IDatasetName name = dsNames.next();
            while (name != null) {
                System.out.println(name.getName());
                name = dsNames.next();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    
    static void initializeArcGISLicenses() {
        try {
            EngineInitializer.initializeEngine();
            com.esri.arcgis.system.AoInitialize ao = new com.esri.arcgis.system.AoInitialize();
            if (ao.isProductCodeAvailable(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeEngine) == com.esri.arcgis.system.esriLicenseStatus.esriLicenseAvailable)
                ao.initialize(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeEngine);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

    3）在DataImport上右键，run as java application，运行这个类

    4）在console界面下就可以看见数据库服务器sde下的所有dataset名称

备注：initializeArcGISLicenses() 用于初始化engine的licence，如果不加的话，会提示错误：Could not load native libraries. ArcGIS/bin should be added to the system PATH environment variable.