java操作oracle空间信息介绍
sde是Spatial Database Engine简写，中文全称：空间数据库引擎。SDE是一种客户/服务器软件，可使空间数据在工业标准的数据库管理系统中存储、管理和快速查询检索。把GIS数据放在RDBMS中，但是一般的RDBMS都没有提供GIS的数据类型（如点、线、多边形、以及这些feature之间的拓扑关系和投影坐标等相关信息），RDBMS只提供了少量的数据类型支持：int，float，double，Blob，Long ，char等，一般都是数字，字符串和二进制数据几种。并且RDBMS不仅没有提取对GIS数据类型的存储，也没有提供对这些基础类型的操作（如：判断包含关系，相邻、相交、求差、距离、最短路径等）
JAVA对sde操作，首先需要下载sde支持的jar包。jpe92_sdk.jar和jsde92_sdk.jar两个包，这两个包可以从安装的目录下找到。
下面是java获的sde的链接代码：
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01./**
02. * 连接sde服务
03. * @return
04. */
05. public SeConnection getConnection () {
06. SeConnection conn = null ;
07. try {
08. conn = new SeConnection(SDE_SERVER_IP, SDE_PROT, SDE_DATEBASE_SID, SDE_USERNAME, SDE_PASSWORD);
09. } catch (SeException e) {
10. return null;
11. }
12. return conn;
13. }
对sde数据进行添加，点线面的新增
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01./**
02. * 添加资源信息点到sde中
03. * @param pointBean 坐标点 POJO
04. * @param tbName 图层名称
05. * @param String typeName 所画的类型 1 点 2 线 3 面
06. * @return Long sde的id
07. * @throws Exception
08. */
09. public Long addPointObject(PointBean pointBean, List columnList, String tableName, String typeName) throws Exception {
10. SeLayer insertLayer = null;
11. SeConnection conn = null;
12. Long intsertRowID = null;
13. SeInsert insert = null;
14. try {
15. conn = this.getConnection();
16. insertLayer = new SeLayer( conn, tableName, "SHAPE");
17. if (insertLayer == null) {
18. throw new Exception("找不到空间表：" + tableName);
19. }
20. conn.startTransaction();
21. int arrayLength = columnList.size() + 1 ;
22. String[] cols = new String[arrayLength];
23. cols[0] = "SHAPE";
24. for (int i = 0 ;i<columnList.size() ; i++) {
25. ColumnBean columnBean = (ColumnBean)columnList.get(i);
26. cols[i+1] = columnBean.getName();
27. }
28. insert = new SeInsert(conn);
29. insert.intoTable(insertLayer.getName(), cols);
30. insert.setWriteMode(true);
31. SeCoordinateReference coordref = (SeCoordinateReference) insertLayer.getCoordRef();
32. SeShape shape = new SeShape(coordref);
33.
34. if ("1".equals(typeName)) {
35. this.addPoint(pointBean, shape);
36. } else if ("2".equals(typeName)) {
37. this.addLine(pointBean, shape);
38. } else if ("3".equals(typeName)) {
39. this.addPolygon(pointBean, shape);
40. }
41. SeRow row = insert.getRowToSet();
42. row.setShape(0, shape);
43. for (int i = 0 ;i<columnList.size() ; i++) {
44. ColumnBean columnBean = (ColumnBean)columnList.get(i);
45. if (columnBean.getTypeObject() == 1) {
46. row.setNString(i+1, String.valueOf(columnBean.getValObject()));
47. } else if (columnBean.getTypeObject() == 2) {
48. row.setInteger(i+1, Integer.parseInt(columnBean.getValObject().toString()));
49. }else if (columnBean.getTypeObject() == 3) {
50. row.setDouble(i+1, Double.parseDouble(columnBean.getValObject().toString()));
51. }
52. }
53. insert.execute();
54. intsertRowID = new Long(insert.lastInsertedRowId().longValue());
55. ();
56. } catch (Exception ex) {
57. ex.printStackTrace();
58. conn.rollbackTransaction();
59. } finally {
60. if (insert != null) {
61. insert.close();
62. }
63. if (conn != null) {
64. conn.close();
65. }
66. }
67. return intsertRowID;
68. }
sde查询接口实现http://www.
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01./**
02. * 查询sde
03. * @param productId 产品id
04. * @throws SeException
05. */ www.
06. public SeQuery searchSde (Long productId, String tableName) throws SeException {
07. SeConnection conn = getConnection();
08. SeLayer layer = new SeLayer( conn, tableName, "SHAPE");
09. SeSqlConstruct sqlConstruct = new SeSqlConstruct(layer.getName());
10. if (productId != null) {
11. sqlConstruct.setWhere("yid="+productId.intValue());
12. }
13. String[] cols = null;
14. if (tableName.equals("YU_AN_POINT") || tableName.equals("FANG_AN_POINT")) {
15. cols = new String[4];
16. cols[0] = new String("OBJECTID");
17. cols[1] = layer.getSpatialColumn();
18. cols[2] = new String("NAME");
19. cols[3] = new String("IMAGETYPE");
20. } else {
21. cols = new String[3];
22. cols[0] = new String("OBJECTID");
23. cols[1] = layer.getSpatialColumn();
24. cols[2] = new String("NAME");
25. }
26. System.out.println("cols.length : " + cols.length);
27. SeQuery query = new SeQuery(conn, cols, sqlConstruct );
28. query.prepareQuery();
29. query.execute();
30. return query;
31. }
SDE信息删除操作
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01./**
02. *
03. * 删除 通过列对应的值
04. * @param id 值
05. * @param column 列
06. * @param tbName 表名
07. * @throws SeException
08. */
09. public void deletePointObject(String id, String column, String tbName) throws SeException {
10. SeConnection conn = null;
11. SeLayer layer = null;
12. SeDelete delete = null;
13. try {
14. conn = this.getConnection();
15. layer = new SeLayer(conn, tbName, "SHAPE"); // 得到对应图层
16. if (layer == null) {
17. throw new Exception("找不到空间表：" + tbName);
18. }
19. conn.startTransaction();
20. delete = new SeDelete(conn);
21. delete.fromTable(layer.getName(), column + "='" + id+"'");
22. ();
23. } catch (Exception ex) {
24. conn.rollbackTransaction();
25. } finally {
26. if (delete != null) {
27. try {
28. delete.close();
29. } catch (SeException e) {
30. e.printStackTrace();
31. throw e;
32. } finally {
33. if (conn != null) {
34. conn.close();
35. }
36. }
37. }
38. }
39. }
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