如何通过struts以oci协议将文件上传到oracle数据库的blob字段

package com.prient.nbsc.unifylaw;

import java.sql.*;

import com.prient.nbsc.common.DBPOOL;

public class dbPool {

public Connection getConnection(){

try {

Connection conn = null;

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();

String bridge = ";

conn = DriverManager.getConnection(bridge,"user","user") ;

return conn;

}

catch (Exception e) {

System.out.println(e);

return null;

}

}

}