利用Java进行AcrSDE开发实例【转载】

利用Java进行AcrSDE开发实例【转载】
http://www.gispark.com/html/GIS-Spatial-Database/2007/1227/2002.html
利用Java进行AcrSDE开发实例：
ArcSDE提供了C API和Java API两种接口。这里我们只导论如何通过Java API进行arcSDE开发。

开发环境：

JDK 1.5

WIN 插P

Eclipse 3.1+MyEclipse

ArcSDE for Oracle 9i

（1）把arcSDE java API所需要的三个jar包导到web\lib目录，包括jsde90_sdk.jar，jpe90_sdk.jar ，concurrent.jar；

（2）添加点：

public class AddPointBean {

public static boolean process(HttpServletRequest request,

HttpServletResponse response) throws Exception {

Map map=null;

if (request.getSession().getAttribute(StaticConstant.SESSION_MAP) == null) {

String strErr = "地图还没有初始化";

request.setAttribute(StaticConstant.REQUEST_ERROR, strErr); 字串3

return false;

}

map=(Map)request.getSession().getAttribute(StaticConstant.SESSION_MAP);

//连接SDE

SeConnection conn = null;

String server = "menglikunm";

int instance = 5151;

String database = "ora";

String user = "sde";

String password = "sde";

SeLayer insertLayer=null;

try {

conn = new SeConnection(server, instance, database, user, password);
字串1

Vector layerList = conn.getLayers();

for (int index = 0; index < layerList.size(); index++) {

SeLayer layer = (SeLayer) layerList.elementAt(index);

// Displays the layer’s name

System.out.println(layer.getName());

// Displays the layer’s ID

System.out.println(layer.getID().longValue());

// Displays the layer’s spatial column name
字串7

System.out.println(layer.getSpatialColumn());

if(layer.getName().equalsIgnoreCase("ZHENGFUJIGUAN")){

insertLayer=layer;

}

}

} catch (SeException e) {

e.printStackTrace();

return false;

}

//开始插入数据

try{ 字串6

conn.startTransaction();

String[] cols = new String[2];

cols[0] = new String("NAME");

cols[1] = insertLayer.getSpatialColumn();

SeInsert insert = new SeInsert(conn);

insert.intoTable(insertLayer.getName(),cols);

insert.setWriteMode(true);

SeCoordinateReference coordref =(SeCoordinateReference)insertLayer.getCoordRef();

SeShape shape = new SeShape(coordref);

double x=map.toMapPoint(10,10).getX();
字串9

double y=map.toMapPoint(10,10).getY();

int numPts = 1;

SDEPoint[] ptArray = new SDEPoint[numPts];

ptArray[0] = new SDEPoint(x, y);

shape.generatePoint(numPts, ptArray);

SeRow row = insert.getRowToSet();

row.setString(0, "测验点");

row.setShape(1,shape);

insert.execute(); 字串7

insert.close();

conn.commitTransaction();

conn.close();

}catch(Exception ex){

conn.rollbackTransaction();

conn.close();

ex.printStackTrace();

}

return true;

}

}（3）删除点：

public class DeletePointBean {

public static boolean process(HttpServletRequest request,

HttpServletResponse response) throws Exception {

//连接SDE
字串5

SeConnection conn = null;

String server = "menglikunm";

int instance = 5151;

String database = "ora";

String user = "sde";

String password = "sde";

try {

conn = new SeConnection(server, instance, database, user, password);

Vector layerList = conn.getLayers();

for (int index = 0; index < layerList.size(); index++) {

SeLayer layer = (SeLayer) layerList.elementAt(index); 字串5

// Displays the layer’s name

System.out.println(layer.getName());

// Displays the layer’s ID

System.out.println(layer.getID().longValue());

// Displays the layer’s spatial column name

System.out.println(layer.getSpatialColumn());

}

} catch (SeException e) {

e.printStackTrace();
字串8

return false;

}

//开始删除数据

try{

conn.startTransaction();

SeDelete delete=new SeDelete(conn);

SeObjectId id=new SeObjectId(641);

delete.byId("ZHENGFUJIGUAN",id);

conn.commitTransaction();

delete.close();

}catch(Exception ex){

conn.rollbackTransaction(); 字串4

conn.close();

ex.printStackTrace();

}

return true;

}

}