servlet 调用oracle数据库存储过程

servlet首先建立数据库连接类ConnectFactory：

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import javax.naming.InitialContext;
import javax.sql.DataSource;

public class ConnectFactory {
   private Connection conn;
   private DataSource connnectionPool;

//链接中间件的连接池
   public ConnectFactory(){
   try {
   InitialContext ctx = new InitialContext();
   connnectionPool = (DataSource) ctx.lookup("PaymentDS");
   }
   catch (Exception e) {
       e.printStackTrace();
   }
   }

//获得连接池的链接对象
   public Connection getConn() throws Exception {
   try {
   conn=connnectionPool.getConnection();
   return conn;
   }
   catch (SQLException sqle) {
   throw new Exception();
   }
   }

   static{
       try{
           Class.forName("oracle.jdbc.driver.OracleDriver");
       }catch(ClassNotFoundException e){
           throw new ExceptionInInitializerError(e);
       }
   }

//获得手写链接字符串的链接
   public static Connection getConnection() throws SQLException{
       return DriverManager.getConnection("jdbc:oracle:thin:@192.168.2.37:1521:sdecp","eca","errors");
   }

}
外部调用链接：
   public Map getBusinessB2ADeal(String b2aNo) throws Exception{
       Map res = null;
       Connection con = ConnectFactory.getConnection();
//       Connection con = new ConnectFactory().getConn();
       CallableStatement cs = con.prepareCall("{call proc_business_b2aNo(?,?,?,?,?,?)}");
       cs.setString("b2aNo", b2aNo);
       cs.registerOutParameter("b2aBank", Types.VARCHAR);
       cs.registerOutParameter("b2aAmount", Types.DOUBLE);
       cs.registerOutParameter("b2aType", Types.VARCHAR);
       cs.registerOutParameter("b2aNotify", Types.VARCHAR);
       cs.registerOutParameter("b2aBill", Types.VARCHAR);
       cs.execute();

       String b2aBank = cs.getString("b2aBank");
   String b2aAmount = cs.getString("b2aAmount");
       String b2aType = cs.getString("b2aType");
       String b2aNotify = cs.getString("b2aNotify");
       String b2aBill = cs.getString("b2aBill");

   if(!StringUtils.isEmpty(b2aBank)){
       res = new HashMap();
       res.put("bankId", b2aBank);
       res.put("amount", b2aAmount);
       res.put("b2aType", b2aType);
       res.put("b2aNotify", b2aNotify);
       res.put("b2aBill", b2aBill);
   }
   cs.close();
   con.close();
   return res;
   }
存储过程：
CREATE OR REPLACE PROCEDURE proc_business_b2aNo(
b2aNo in varchar2,
b2aBank out varchar2,
b2aAmount out NUMBER,
b2aType out varchar2,
b2aNotify out varchar2,
b2aBill out varchar2
)
IS
BEGIN
SELECT tb2a.b2a_bank,tb2a.b2a_amount,tb2a.b2a_Type,tb2a.b2a_NOTIFY,tb2a.b2a_Bill
INTO b2aBank,b2aAmount,b2aType,b2aNotify,b2aBill
FROM t_b2a tb2a WHERE tb2a.b2a_no = b2aNo;
EXCEPTION
WHEN NO_DATA_FOUND THEN
NULL;
WHEN OTHERS THEN
-- Consider logging the error and then re-raise
RAISE;
END proc_business_b2aNo;

servlet 调用oracle数据库存储过程

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