ArcSDE SDK For Java二次开发介绍、演示样例
在一个工作中，遇到了须要java后台来查询ArcGIS 中用到的Oracle数据库空间数据，因为对ArcGIS空间数据首次接触，仅仅知道Oracle能够使用ST_GEOMETRY字段存储，例如以下图
可是查询时会发现这个ST_GEOMETRY字段会在结果中出现个多个子的字段，对于arcgis地理知识了解甚少，不知道单独查询一个坐标怎么弄了，有些朋友说须要配置监听文件。
无论怎么说，至少參考了一个大牛的文章，http://blog.csdn.net/linghe301/article/details/8058806 依据 ArcSDE For Java的API中，能够对其进行增删改查等操作。
对于ArcSDE for Java的介绍请參考大牛文章，就不反复写了。以下的演示样例代码中，经过改动，加了一些凝视，还是不错的
首先把jsde_sdk.jar、jpe_sdk.jar、concurrent.jar、icu4j_3_2.jar包下载下来导入javaproject中就可以。四个jar包的下载地址例如以下：
http://download.csdn.net/detail/xiaokui_wingfly/8032329
详细在查询时有用的常量含义及方法參考官方API解释 ：http://help.arcgis.com/en/geodatabase/10.0/sdk/arcsde/api/japi/docs/index.html
package cn.sde.test;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.esri.sde.sdk.client.SDEPoint;
import com.esri.sde.sdk.client.SeColumnDefinition;
import com.esri.sde.sdk.client.SeConnection;
import com.esri.sde.sdk.client.SeCoordinateReference;
import com.esri.sde.sdk.client.SeException;
import com.esri.sde.sdk.client.SeFilter;
import com.esri.sde.sdk.client.SeInstance;
import com.esri.sde.sdk.client.SeLayer;
import com.esri.sde.sdk.client.SeQuery;
import com.esri.sde.sdk.client.SeQueryInfo;
import com.esri.sde.sdk.client.SeRelease;
import com.esri.sde.sdk.client.SeRow;
import com.esri.sde.sdk.client.SeShape;
import com.esri.sde.sdk.client.SeShapeFilter;
import com.esri.sde.sdk.client.SeSqlConstruct;
import com.esri.sde.sdk.client.SeTable;
public class T {
private static SeConnection conn = null;
private static String server = "172.25.0.253"; // sde服务器
private static String instance = "5151"; // sde端口
private static String database = "orcl"; // sde数据库
private static String username = "sde"; // sde用户名
private static String password = "sde"; // sde密码
// 获得ArcSDE连接
private static SeConnection getConn() {
if (conn == null) {
try {
conn = new SeConnection(server, instance, database, username, password);
} catch (SeException ex) {
ex.printStackTrace();
}
}
return conn;
}
/**
* ArcSDE管理
*/
public static void GetArcSDEInfo() {
try {
SeInstance instance = new SeInstance(server, "5151");
SeInstance.SeInstanceStatus status = instance.getStatus();
System.out.println("连接数：" + status.getNumConnections());
System.out.println("能够连接：" + status.isAccepting());
System.out.println("------------------------------------------------");
SeInstance.SeInstanceConfiguration config = instance.getConfiguration();
System.out.println("最大连接数：" + config.getMaxConnections());
System.out.println("------------------------------------------------");
SeInstance.SeInstanceStats[] stats = instance.getStats();
for (int i = 0; i < stats.length; i++) {
System.out.println("操作数：" + stats[i].getOperationCount());
}
System.out.println("------------------------------------------------");
SeInstance.SeInstanceUsers[] users = instance.getUsers();
for (int j = 0; j < users.length; j++) {
System.out.println("用户名：" + users[j].getUserName());
System.out.println("系统名：" + users[j].getSysName());
System.out.println("服务器開始时间：" + users[j].getServerStartTime());
System.out.println("服务器PID：" + users[j].getServerPid());
System.out.println("*****************************");
}
System.out.println("------------------------------------------------");
System.out.println("系统名：" + instance.getServerName());
System.out.println("------------------------------------------------");
System.out.println("------------------------------------------------");
SeInstance.SeInstanceTableLocks[] tablelocks = instance.getTableLocks();
for (int i = 0; i < tablelocks.length; i++) {
System.out.println("表级别锁类型：" + tablelocks[i].getLockType());
System.out.println("表级别锁PID：" + tablelocks[i].getPid());
System.out.println("表级别锁注冊ID：" + tablelocks[i].getRegistrationId());
System.out.println("*****************************");
}
System.out.println("------------------------------------------------");
} catch (SeException e) {
e.printStackTrace();
}
}
/**
* 空间条件查询 X，Y坐标參数传值
*/
public static void SpatialQuery_Hz(double x, double y) {
try {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss SS");
long startTime = System.currentTimeMillis();
Date startDate = new Date(startTime);
System.out.println("開始时间：" + formatter.format(startDate));
String tbname = "EZGISDATA.DCQWG_HB";
String[] cols = new String[7];
cols[0] = "JDNAME";
cols[1] = "JDCODE";
cols[2] = "SQNAME";
cols[3] = "SQCODE";
cols[4] = "WGNAME";
cols[5] = "WGCODE";
cols[6] = "TYPE";
SeConnection conn = getConn();
SeLayer layer = new SeLayer(conn, tbname, "SHAPE");
SeCoordinateReference cr = layer.getCoordRef();
SeFilter[] filters = new SeFilter[1];
SeShape shape = new SeShape(cr);
SDEPoint pt = new SDEPoint(x, y);
shape.generatePoint(1, new SDEPoint[] { pt });
// METHOD_ET_OR_AI, METHOD_ET_OR_II, METHOD_II_OR_ET, METHOD_AI,
// METHOD_II, METHOD_AI_NO_ET, METHOD_II_NO_ET,
// METHOD_PC, METHOD_PC_NO_ET, METHOD_PIP,
SeFilter filter = new SeShapeFilter(tbname, layer.getSpatialColumn(), shape, SeShapeFilter.METHOD_PIP);
filters[0] = filter;
SeSqlConstruct sqlCons = new SeSqlConstruct(tbname);
SeQuery query = new SeQuery(conn, cols, sqlCons);
query.prepareQuery();
query.setSpatialConstraints(SeQuery.SE_ATTRIBUTE_FIRST, false, filters);
query.execute();
SeRow row = query.fetch();
while (row != null) {
System.out.println(row.getObject(0).toString() + ", " + row.getObject(2).toString() + ", " + row.getObject(3).toString() + ", " + row.getObject(6).toString());
row = query.fetch();
}
long endTime = System.currentTimeMillis();
Date endDate = new Date(endTime);
System.out.println("结束时间：" + formatter.format(endDate));
System.out.println("相差: " + ((endTime - startTime) / 1000) + "秒\n");
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* 普通查询
*/
public static void CommonQuery() {
try {
SeConnection conn = getConn();
SeTable table = new SeTable(conn, "EZGISDATA.DCQWG_PY");
SeColumnDefinition[] tableDef = table.describe();
String[] cols = new String[tableDef.length];
for (int j = 0; j < cols.length; j++) {
cols[j] = tableDef[j].getName();
}
SeSqlConstruct sqlCons = new SeSqlConstruct("EZGISDATA.DCQWG_PY");
SeQuery query = new SeQuery(conn, cols, sqlCons);
SeQueryInfo queryInfo = new SeQueryInfo();
queryInfo.setQueryType(SeQueryInfo.SE_QUERYTYPE_ATTRIBUTE_FIRST);
queryInfo.setColumns(cols);
queryInfo.setConstruct(sqlCons);
query.prepareQueryInfo(queryInfo);
query.execute();
SeRow row = query.fetch();
while (row != null) {
System.out.println(row.getObject(0).toString() + " : " + row.getObject(1).toString() + " : " + row.getObject(3).toString() + " : " + row.getObject(4).toString() + " : "
+ row.getObject(5).toString() + " : " + row.getObject(6).toString() + " : " + row.getObject(7).toString() + " : " + row.getObject(8).toString());
row = query.fetch();
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* 属性条件查询
*/
public static void AttributeQuery() {
try {
String tbname = "EZGISDATA.DCQWG_PY";
String[] cols = new String[4];
cols[0] = "NEWSQMC";
cols[1] = "NEWSQBM";
cols[2] = "NEWWGMC";
cols[3] = "NEWWGBM";
SeConnection conn = getConn();
SeSqlConstruct sqlCons = new SeSqlConstruct(tbname);
sqlCons.setWhere("JDNAME='和平里'");
SeQuery query = new SeQuery(conn, cols, sqlCons);
query.prepareQuery(cols, sqlCons);
query.execute();
SeRow row = query.fetch();
int reccount = 0;
while (row != null) {
reccount = reccount + 1;
System.out.println(Integer.toString(reccount) + " : " + row.getObject(0).toString() + " : " + row.getObject(1).toString() + " : " + row.getObject(2).toString() + " : "
+ row.getObject(3).toString());
row = query.fetch();
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* 获得ArcSDE版本号信息
*/
public static void GetVersion() {
SeConnection conn = getConn();
SeRelease release = conn.getRelease();
System.out.println(release.getBugFix());
System.out.println(release.getDesc());
System.out.println(release.getRelease());
System.out.println(release.getMajor());
System.out.println(release.getMinor());
}
public static void main(String[] args) {
GetArcSDEInfo();
CommonQuery();
AttributeQuery();
GetVersion();
SpatialQuery_Hz(506019.02883, 302758.03546);
}
}结果：打印内容过多，省略内容XXXX字
------------------------------------------------
表级别锁PID：526084
表级别锁注冊ID：1966
*****************************
....
1 : JDNAME：东花市 : JDCODE：13 : SQNAME：忠实里社区 : SQCODE：1303 : WGNAME：忠实里社区3号网格 : WGCODE：13033-0152 : TYPE：SG
.....
