第一：调用函数的例子：

package daniel.test;

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Types;

public class ConnectionPro {
	/**建立数据库的连接
	 * @param args
	 */
	public static Connection getConnection(){
		Connection con=null;
		try {
			Class.forName("oracle.jdbc.driver.OracleDriver");
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		String url="jdbc:oracle:thin:@PC-200911181406:1521:dgy";
		String user="dwj";
		String pwd="dwj";
		try {
			con = DriverManager.getConnection(url,user,pwd);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}  
		return con;
	}
	public static void main(String[] args) throws SQLException {
		Connection con=ConnectionPro.getConnection();
		CallableStatement sc=con.prepareCall("{?=call get_temp(?,?)}");
		sc.registerOutParameter(1,Types.VARCHAR);
		sc.setString(2,"12");
		sc.registerOutParameter(3, Types.VARCHAR);
		sc.execute();
		System.out.println(sc.getString(1));
		System.out.println(sc.getString(3));
	}

}

?

output:

Alex
Alex

?

?

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