Problem of java stored procedure

Question

hi,
now I use the oracle9i JDeveloper9.0.3.1 to develop java stored procedure and then publish it to oracle9i database.
In the database I create PL/SQL procedure to invoke the java stored procedure.But I encounter the problem,that is ,when I run the PL/SQL procedure ,it throw the java.lang.NullPointerException ,while the java class,the java stored procedure can run correctly invoked by the main class of java.The code of the java stored procedure is as follows:
import java.sql.*;
import java.util.Properties;
public class SQLServerEventDistribute
public static void sqlServerSaveData(String hostName,String databaseName,String user,String password,String tableName,int x1,int y1,int x2,int y2,String ip)
String url="",sql="",userName="",passwd="";
Connection connection;
Statement statement;
url="jdbc:microsoft:sqlserver://"+hostName+":1433;DatabaseName="+databaseName+";User="+user+";Password="+password;
sql="INSERT INTO "+tableName+" VALUES("+x1+","+y1+","+x2+","+y2+",'"+ip+"')";
Properties property=new Properties();
property.setProperty(userName,user);
property.setProperty(passwd,password);
try
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
// DriverManager.registerDriver(new com.microsoft.jdbc.sqlserver.SQLServerDriver());
connection=DriverManager.getConnection(url,property);
statement=connection.createStatement();
statement.execute(sql);
}catch(ClassNotFoundException connectSQLServerEx)
System.out.println(connectSQLServerEx.getMessage());
catch(SQLException connectSQLServerEx)
System.out.println(connectSQLServerEx.getMessage()+connectSQLServerEx.getErrorCode());
the main class is as follows:
public class Test
public static void main(String[] args)
SQLServerEventDistribute.sqlServerSaveData("gsm","gsmd","sa","sa","IPBinding",11,45,24,21,"23.1.248.12");
and the PL/SQL procedure is as follows:
PROCEDURE TEST AS
BEGIN
SQLSERVERSAVEDATA('gsm','gsmd','sa','sa','IPBinding',11,45,24,21,'23.1.248.22');
END;
How can I deal with it?
can you tell me?
thanks

Answer 1

Hi JavaQQ,
This is just a guess, but I think you need to load the
Micro$oft SQLServer JDBC driver into the Oracle
database (using the "loadjava" utility).
In any case, there are several ways -- apart from JDBC
-- for accessing a different database from within an
Oracle database. Have you tried searching the Oracle
Web sites for suitable products?
Hope this helps.
Good Luck,
Avi.abramia ,thank you very much.
but I have load the Microsoft SQLServer JDBC driver into the Oracle database .
When I debugged the PL/SQL procedure,the exception was thrown at line connection=DriverManager.getConnection(url,property);
What's the problem with it?