--sunfruit

Oracle的空间数据库的操作驱动更新了，新的驱动适用于Oracle8.0或以上，新驱动在对数据库的操作上面和原有的驱动差别比较大，不过有一点：使用变得简单了

建立空间数据库和建立空间索引的步骤就略过了，那些网上有很多例子，而且实现方式上面也没有变化，下面列出查询空间数据库记录的代码：

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import oracle.spatial.geometry.JGeometry;

import java.sql.PreparedStatement;

import oracle.sql.STRUCT;

import java.sql.Connection;

/**

*

Title:

*

*

Description:

*

*

Copyright: Copyright (c) 2006

*

*

Company:

*

* @author sunfruit

* @version 1.0

*/

public class SdoSelect {

public SdoSelect() {

}

public static void main(String[] args) {

String driver = "oracle.jdbc.driver.OracleDriver";

String url = "jdbc:oracle:thin:@172.16.75.200:1521:starmap";

String uid = "hmbst";

String psw = "hmbst";

Connection conn = null;

PreparedStatement ps=null;

try {

Class.forName(driver);

conn = DriverManager.getConnection(url, uid, psw);

JGeometry jGeometry=new JGeometry(41884696,14377039,42884696,14477039,0);

STRUCT obj =jGeometry.store(jGeometry,conn);

String sql = "SELECT * FROM POISDO p WHERE sdo_filter(p.gshape,?,'querytype=window')='TRUE'";

ps = conn.prepareStatement(sql,ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);

ps.clearParameters();

ps.setObject(1, obj);

// 插入点地物记录

ResultSet rs=ps.executeQuery();

while(rs.next())

{

STRUCT st = (oracle.sql.STRUCT)rs.getObject("gshape");

JGeometry j_geom = JGeometry.load(st);

double[] dou=j_geom.getPoint();

String buff="";

for(int i=0;i

{

buff=buff+String.valueOf((int)dou[i])+"   ";

}

System.out.println(buff);

}

}

catch (Exception ex) {

ex.printStackTrace();

}

finally

{

if(conn!=null)

{

try {

conn.close();

}

catch (SQLException ex) {

ex.printStackTrace();

}

}

if(ps!=null)

{

try {

ps.close();

}

catch (SQLException ex) {

ex.printStackTrace();

}

}

}

}

}

表POISDO的结构如下

create table poi (

id INTEGER,

gname VARCHAR2(256),

gshape MDSYS.SDO_GEOMETRY);

posted on 2006-07-20 15:28 sunfruit 阅读(474) 评论(0)  编辑  收藏 所属分类: JAVA SE & EE 、数据库