JAVA调用ORACLE的存储过程、函数的返回结果集

具体过程如下：

CREATE TABLE STOCK_PRICES(
RIC VARCHAR(6) PRIMARY KEY,
PRICE NUMBER(7,2),
UPDATED DATE );

--对表插入数据
INSERT INTO stock_prices SELECT '1110',1.0,SYSDATE FROM DUAL;
INSERT INTO stock_prices SELECT '1111',2.0,SYSDATE FROM DUAL;
INSERT INTO stock_prices SELECT '1112',3.0,SYSDATE FROM DUAL;
INSERT INTO stock_prices SELECT '1113',4.0,SYSDATE FROM DUAL;

--建立一个返回游标
CREATE OR REPLACE PACKAGE ZZH_TEST.PKG_PUB_UTILS IS
--动态游标
TYPE REFCURSOR IS REF CURSOR;
END PKG_PUB_UTILS;

--创建一个测试用的存储过程
CREATE OR REPLACE PROCEDURE ZZH_TEST.P_GET_PRICE(AN_O_RET_CODE         OUT NUMBER,
AC_O_RET_MSG          OUT VARCHAR2,
CUR_RET               OUT PKG_PUB_UTILS.REFCURSOR,
AN_I_PRICE IN NUMBER
) IS
BEGIN
AN_O_RET_CODE := 0;
AC_O_RET_MSG  := '操作成功';

OPEN CUR_RET FOR
SELECT * FROM STOCK_PRICES WHERE PRICE<AN_I_PRICE;
EXCEPTION
WHEN OTHERS THEN
AN_O_RET_CODE := -1;
AC_O_RET_MSG  := '错误代码:' || SQLCODE || CHR(13) || '错误信息:' || SQLERRM;

END P_GET_PRICE;

--创建一个测试用的函数:
CREATE OR REPLACE FUNCTION ZZH_TEST.F_GET_PRICE(v_price IN NUMBER)
RETURN PKG_PUB_UTILS.REFCURSOR
AS
stock_cursor PKG_PUB_UTILS.REFCURSOR;
BEGIN
OPEN stock_cursor FOR
SELECT ric,price,updated FROM stock_prices WHERE price < v_price;

RETURN stock_cursor;
END;

--开发JAVA调用存储过程返回结果集的例子：JDBCoracle10G_INVOKEPROCEDURE
--开发JAVA调用函数返回结果集的例子：JDBCoracle10G_INVOKEFUNCTION

--2份JAVA源代码:

-- 开发JAVA调用存储过程返回结果集的例子：JDBCoracle10G_INVOKEPROCEDURE

import java.sql.*;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleTypes;
/* 本例是通过调用oracle的存储过程来返回结果集:
* oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip
*/
public class JDBCoracle10G_INVOKEPROCEDURE {
Connection conn = null;
Statement statement = null;
ResultSet rs = null;
CallableStatement stmt = null;

String driver;
String url;
String user;
String pwd;
String sql;
String  in_price ;
public  JDBCoracle10G_INVOKEPROCEDURE()
{
driver = "oracle.jdbc.driver.OracleDriver";;
url = "jdbc:oracle:thin:@10.168.1.193:1521:orcl";
//oracle 用户
user = "ZZH_TEST";
//oracle 密码
pwd = "ZZH_TEST";

init();

//mysid：必须为要连接机器的sid名称，否则会包以下错：
//     java.sql.SQLException: Io 异常: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
//参考连接方式:
//   Class.forName( "oracle.jdbc.driver.OracleDriver" );
//   cn = DriverManager.getConnection( "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );

}

public void init()
{

System.out.println("oracle jdbc test");

try{
Class.forName(driver);
System.out.println("driver is ok");

conn = DriverManager.getConnection(url,user,pwd);
System.out.println("conection is ok");

statement = conn.createStatement();
// conn.setAutoCommit(false);

//输入参数
in_price="3.0";

//调用函数
stmt = conn.prepareCall( "call P_GET_PRICE(?,?,?,?)");
stmt.registerOutParameter(1, java.sql.Types.FLOAT);
stmt.registerOutParameter(2, java.sql.Types.CHAR);
stmt.registerOutParameter(3, oracle.jdbc.OracleTypes.CURSOR);
stmt.setString(4, in_price);
stmt.executeUpdate();
int retCode = stmt.getInt(1);
String retMsg = stmt.getString(2);
if (retCode == -1) { //如果出错时，返回错误信息
System.out.println("报错！");
} else {
//取的结果集的方式一：
rs = ((OracleCallableStatement)stmt).getCursor(3);
//取的结果集的方式二：
//  rs = (ResultSet) stmt.getObject(3);

String ric ;
String price ;
String updated ;
//对结果进行输出
while(rs.next()){
ric = rs.getString(1);
price = rs.getString(2);
updated = rs.getString(3);

System.out.println("ric:"+ric+";-- price:"+price+"; --"+updated+"; ");
}
}

}
catch(Exception e)
{
e.printStackTrace();
}
finally{
System.out.println("close ");
}
}

public static void main(String args [])//自己替换［］
{
new JDBCoracle10G_INVOKEPROCEDURE();
}
}

--=======================================================================

--源代码：

--开发JAVA调用函数返回结果集的例子：JDBCoracle10G_INVOKEFUNCTION

import java.sql.*;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleTypes;
/*
/* 本例是通过调用oracle的函数来返回结果集:
* oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip
*/
public class JDBCoracle10G_INVOKEFUNCTION {
Connection conn = null;
Statement statement = null;
ResultSet rs = null;
CallableStatement stmt = null;

String driver;
String url;
String user;
String pwd;
String sql;
String  in_price ;
public  JDBCoracle10G_INVOKEFUNCTION()
{
driver = "oracle.jdbc.driver.OracleDriver";;
url = "jdbc:oracle:thin:@10.168.1.193:1521:orcl";
//oracle 用户
user = "ZZH_TEST";
//oracle 密码
pwd = "ZZH_TEST";

init();

//mysid：必须为要连接机器的sid名称，否则会包以下错：
//     java.sql.SQLException: Io 异常: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
//参考连接方式:
//   Class.forName( "oracle.jdbc.driver.OracleDriver" );
//   cn = DriverManager.getConnection( "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );
}

public void init()
{
System.out.println("oracle jdbc test");

try{
Class.forName(driver);
System.out.println("driver is ok");

conn = DriverManager.getConnection(url,user,pwd);
System.out.println("conection is ok");

statement = conn.createStatement();
//conn.setAutoCommit(false);

//输入参数
in_price="5.0";

//调用函数
stmt = conn.prepareCall("{? = call F_GET_PRICE(?)}");
// stmt.registerOutParameter(1, java.sql.Types.FLOAT);
// stmt.registerOutParameter(2, java.sql.Types.CHAR);
stmt.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
stmt.setString(2, in_price);
stmt.executeUpdate();
//取的结果集的方式一：
rs = ((OracleCallableStatement)stmt).getCursor(1);
//取的结果集的方式二：
//  rs = (ResultSet) stmt.getObject(1);
String ric ;
String price ;
String updated ;

while(rs.next()){
ric = rs.getString(1);
price = rs.getString(2);
updated = rs.getString(3);
System.out.println("ric:"+ric+";-- price:"+price+"; --"+updated+"; ");
}

}
catch(Exception e)
{
e.printStackTrace();
}
finally{
System.out.println("close ");
}
}

public static void main(String args [])//自己替换［］
{
new JDBCoracle10G_INVOKEFUNCTION();
}
}