The Java language in the backend JSP file if the Jgeometry object provided by Oracle spatial is manipulated

Source: Internet
Author: User

Write a journal, and record the problem that bothers you for a long, how to solve it at last. At that time felt the attempt to try, wondering how to solve the problem, and finally solved the ~

The correct code is as follows:

<%@ page contenttype= "text/html; charset=gb2312 "language=" java "import=" java.sql.*,java.lang.*,oracle.spatial.geometry.*,oracle.spatial.util.*, Oracle.sql.* "Errorpage=" "%><! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">Where, because the map is on port 8888, and the JSP file is under the WebApps folder under the Tomcat folder under the new project folder, on port 8080. To run in Chrome, you need the following code:

Response.AddHeader ("Access-control-allow-origin", "http://192.168.14.216:8888");

Then, because of the use of the Jgeometry object, the Jgeometry object is provided in Sdoapi.jar. Sdoapi.jar and Sdoutl.jar need to be used. Therefore, you need to import the corresponding package in the import of header information: oracle.spatial.geometry.*,oracle.spatial.util.*,oracle.sql.*

Import= "Java.sql.*,java.lang.*,oracle.spatial.geometry.*,oracle.spatial.util.*,oracle.sql.*"

I have previously imported oracle.spatial.geometry.*,oracle.jdbc.driver.*,oracle.sql.struct; Failure to import oracle.spatial.util.* may result in Jgeometry type error.

Before all are loaded in the browser JSP page times wrong jgeometry is undefined type. Later did not report this mistake, but still have the problem, always thought still this question, thought jgeometry not use. (Because before the jgeometry wrong time, there are times wrong sometimes do not report errors.) )

The program then removes the Sdo_geometry object from the Select Geom, then GetObject and load. Where the index in GetObject () refers to the total item index, not the index of the object. For example, the first property is a string, and the second property is Sdo_geometry. The values are GetString (1) and GetObject (2), respectively. I was a select *, then GetObject (1), so there is a problem. (The first of the select * is a string, the second is sdo_geometry)

SQLStatement = "Select Geom from the box where IDC =" +SP; ResultSet Res_room=stmt.executequery (SQLStatement), if (Res_room.next ()) {  struct dbobject= (struct) res_ Room.getobject (1);  Jgeometry geom=jgeometry.load (dbobject);


The Java language in the backend JSP file if the Jgeometry object provided by Oracle spatial is manipulated

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