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ArcSDE SDK For Java二次开发介绍、示例
在一个工作中，遇到了需要java后台来查询ArcGIS 中用到的Oracle数据库空间数据，由于对ArcGIS空间数据首次接触，只知道Oracle可以使用ST_GEOMETRY字段存储，如下图
但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，有些朋友说需要配置监听文件。
不管怎么说，至少参考了一个大牛的文章，http://blog.csdn.net/linghe301/article/details/8058806 根据 ArcSDE For Java的API中，可以对其进行增删改查等操作。
对于ArcSDE for Java的介绍请参考大牛文章，就不重复写了。下面的示例代码中，经过修改，加了一些注释，还是不错的
package cn.sde.test;
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 ArcSDE_Test3 {
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("可以连接：" + 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("服务器开始时间：" + 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("表级别锁注册ID：" + tablelocks[i].getRegistrationId());
System.out.println("*****************************");
}
System.out.println("------------------------------------------------");
} catch (SeException e) {
e.printStackTrace();
}
}
/**
* 空间条件查询
* 目前存在的问题是，实际应该返回2条，但是，只返回了一条记录，有知道解决方法的朋友请告诉我，留言 跪谢！
*/
public static void SpatialQuery_Hz() {
try {
String tbname = "EZGISDATA.DCQWG_HB"; // 表名
String[] cols = new String[7]; // 要查询字段的数组
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"); // shape为要查询的表中的空间数据字段
SeCoordinateReference cr = layer.getCoordRef();
SeFilter[] filters = new SeFilter[1];
SeShape shape = new SeShape(cr);
double x = 507638.3125000; // x坐标
double y = 303547.9687500; // y坐标
double xs = 0.000000001;
double x1 = x - xs;
double y1 = y + xs;
double x2 = x + xs;
double y2 = y + xs;
double x3 = x + xs;
double y3 = y - xs;
double x4 = x - xs;
double y4 = y - xs;
String polygonstr = "POLYGON((" + Double.toString(x1) + " " + Double.toString(y1);
polygonstr = polygonstr + "," + Double.toString(x2) + " " + Double.toString(y2);
polygonstr = polygonstr + "," + Double.toString(x3) + " " + Double.toString(y3);
polygonstr = polygonstr + "," + Double.toString(x4) + " " + Double.toString(y4);
polygonstr = polygonstr + "," + Double.toString(x1) + " " + Double.toString(y1);
polygonstr = polygonstr + "))";
shape.generateFromText(polygonstr); // 设置查询参数，根据polygon查询
// SDEPoint pt = new SDEPoint(507638.3125000,303547.9687500);//X,Y
// shape.generatePoint(1, new SDEPoint[] { pt });
SeFilter filter = new SeShapeFilter(tbname, layer.getSpatialColumn(), shape, SeShapeFilter.METHOD_AI); // 设置过滤
filters[0] = filter;
SeSqlConstruct sqlCons = new SeSqlConstruct(tbname);
SeQuery query = new SeQuery(conn, cols, sqlCons);
query.prepareQuery();
query.setSpatialConstraints(SeQuery.SE_OPTIMIZE, false, filters);
query.execute();
SeRow row = query.fetch(); // 类似数据库游标的功能
int reccount = 0;
while (row != null) {
reccount = reccount + 1;
String info = Integer.toString(reccount);
for (int i = 0; i < cols.length; i++) { // 将字段和结果同时输出
info = info + " : " + cols[i] + "：" + row.getObject(i).toString();
}
System.out.println(info);
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'"); // 设置条件，类似sql语句
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();
}
}
/**
* 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();
}
}
/**
* 获得ArcSDE版本信息
*/
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();
// GetVersion();
// CommonQuery();
// AttributeQuery();
SpatialQuery_Hz(); // 空间查询
}
}
结果：------------------------------------------------
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
ArcSDE SDK For Java二次开发介绍、示例
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