在Java中调用Oracle包中的过�E?

vso — Fri, 27 Oct 2006 03:43:00 GMT

一、先在oracle中编写测试过�E?/strong>

1、首选徏一个测试表

-- Create table
create table BOOK
(
BOOKID    VARCHAR2(50) not null,
BOOKNAME VARCHAR2(50) not null,
PUBLISHER VARCHAR2(50) not null,
PRICE     VARCHAR2(50) null
)

2、编写ORACLE��试�q�程

CREATE OR REPLACE PACKAGE pkg_test
AS
   TYPE myrctype IS REF CURSOR;

   PROCEDURE get (p_id VARCHAR2, p_str OUT VARCHAR2, p_rc OUT myrctype);
END pkg_test;

/

CREATE OR REPLACE PACKAGE BODY pkg_test
AS
   PROCEDURE get (p_id VARCHAR2, p_str OUT VARCHAR2,p_rc OUT myrctype)
   IS
      sqlstr   VARCHAR2 (500);
   BEGIN
      p_str := ''''Hello,may~'''';
      IF p_id = ''''all'''' THEN
         OPEN p_rc FOR
            SELECT *
              FROM BOOK;
      ELSE
         sqlstr :=
            ''''select *
           from BOOK where BOOKID=:w_id'''';
         OPEN p_rc FOR sqlstr USING p_id;
      END IF;
   END get;
END pkg_test;

/

在这里我们徏立了一个输入参敎ͼ�为普通类型，两个输出参数�Q�其中一个�ؓ(f��)普通VARCHAR2型，另一个�ؓ(f��)�Ҏ(gu��)��的记录集�c�d��?/p>
�Q�注�Q�在数据库端��试一下这个过�E�，以确保没有问题，开始下面的操作~�Q�）

二、编写JAVA代码��试�q�程

/*
* 创徏日期: 2003-8-8
*/
package JDBC;

/**
* 作�?may
* 旉��:15:09:23
*/
import java.sql.*;
import oracle.jdbc.driver.*;

     public class proctest {

  public static void main(String[] args) {
   proctest pc = new proctest();
   pc.ShowContent();
   }


  String sDBDriver="oracle.jdbc.driver.OracleDriver";
  String sConnStr="jdbc:oracle:thin:@10.3.8.48:1521:ORADB";


  Connection connect=null;
  ResultSet rs = null;

  public proctest(){
   try{
    Class.forName(sDBDriver);
   }
   catch(ClassNotFoundException e){
    System.err.println(e.getMessage());
   }
  }
  public ResultSet ShowContent()

  {

   try{

    connect = DriverManager.getConnection(sConnStr,"SHUIBJ","SHUIBJ");
    CallableStatement stmt = connect.prepareCall("{call PKG_TEST.GET(?,?,?)}");

    stmt.setString(1,"all"); //输入参数

    stmt.registerOutParameter(2,Types.CHAR); //输出参数为普通参�?br />    stmt.registerOutParameter(3,OracleTypes.CURSOR); //输出参数为结果集参数

    stmt.executeQuery();

    rs = ((OracleCallableStatement) stmt).getCursor(3); //得到输出�l�果集参�?br />
    ResultSetMetaData rsmd = rs.getMetaData();
    int numberOfColumns = rsmd.getColumnCount();

    String str = stmt.getString(2);


    System.out.println("�W�二个参��Cؓ(f��):"+str);
    System.out.println("�l�果集列�?+numberOfColumns);

    //列出�l�果集中的记�?br />    ResultSetMetaData md = rs.getMetaData();
    int nColumns = md.getColumnCount();
    for (int i=1;i<=nColumns;i++){
     System.out.print(md.getColumnName(i)+((i==nColumns)?"\n":"\t"));
     if(i==2) System.out.print("\t");
    }

    while (rs.next()){
     for(int i=1;i<=nColumns;i++){
     System.out.print(rs.getString(i)+((i==nColumns)?"\n":"\t"));
    }

    }
   }
   catch(SQLException ex){
    System.err.println(ex.getMessage()+"�q�数据库有问�?");
   }

   return rs;

  }

}

输出�l�果为：(x��)

�W�二个参��Cؓ(f��):Hello,may~
�l�果集列�?
BOOKID BOOKNAME  PUBLISHER PRICE
001-22-23-1 jsp 应用开发详解电(sh��)子工业出版社 123
123 uml参考手册机械工业出版社 34

vso 2006-10-27 11:43 发表评论

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在Java中调用Oracle包中的过�E?