Java調用Oracle預存程序返回多條結果集
Oracle版本:11g
Oracle預存程序,使用遊標的方式返回多行、多列資料集合:
CREATE OR REPLACE PROCEDURE SP_DATA_TEST( /*P_ID IN INT,*/ --傳入參數,不需要可注釋
O_CUR OUT SYS_REFCURSOR --輸出資料,本文重點描述
) IS
BEGIN
OPEN O_CUR FOR
SELECT *
FROM (SELECT 'A', SYSDATE - 1
FROM DUAL
UNION ALL
SELECT 'B', SYSDATE
FROM DUAL
UNION ALL
SELECT 'C', SYSDATE + 1 FROM DUAL) O
WHERE 1 = 1;
END;
Java代碼編碼,程式直接調用Oracle的預存程序:SP_DATA_TEST,調用的方法:call SP_DATA_TEST(?),本文只需要輸出資料,不需要輸入參數,故只需要一個“?”即可,若是需要傳輸參數,則根據需要填寫多個參數即可。本文直接使用了main方法測試,也可先自建Java Oracle串連池後使用。
package com.***.test;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
public class ProceTest {
public static void main(String[] args) {
try {
DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
Class.forName("oracle.jdbc.driver.OracleDriver");
String url = "jdbc:oracle:thin:@10.0.0.1:1521:dbcsk";
String username = "****";
String password = "***";
Connection conn = DriverManager.getConnection(url, username,
password);
String sql = "{call SP_DATA_TEST(?)}";
CallableStatement statement = conn.prepareCall(sql);
// statement.setInt(1, 1);
statement.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
statement.execute();
ResultSet rs = (ResultSet)statement.getObject(1);
int i=1;
while (rs.next()) {
System.out.println(rs.getString(1)+":"+rs.getString(2));
i++;
}
rs.close();
statement.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
程式傳回值:
A:2016-04-29 11:12:52
B:2016-03-23 11:12:52
C:2016-03-24 11:12:52