PreparedStatement 使用实例

/**
* PreparedStatement 使用实例
*/
package com.testjdbc.jdbc;

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

/**
* create date: 2011-3-26 下午03:30:06
*
* @author Tao
*
*/
public class TestCallableStatement {
   
    private Connection conn;
    private CallableStatement cstmt;
   
    private String driver = “oracle.jdbc.OracleDriver”;
    private String url = “jdbc:oracle:thin:@127.0.0.1:1521:orcl”;

    /**
     *
     */
    public TestCallableStatement() {
        // TODO Auto-generated constructor stub
        try {
            Class.forName(driver);
            conn = DriverManager.getConnection(url, “ty”, “ty”);
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
   
    public void useAdddatatest3(){
        try {
            cstmt = conn.prepareCall(“{call adddatatest3(?,?,?,?,?)}”);
            cstmt.setInt(1, 3);
            cstmt.setString(2, “mark”);
            cstmt.setDouble(3, 6000);
            cstmt.setDate(4, Date.valueOf(“2010-10-10”));
            cstmt.setDate(5, Date.valueOf(“2001-10-10”));
           
            int i = cstmt.executeUpdate();
            System.out.println(i);
           
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
   
    public void useGetArea(){
        try {
            cstmt = conn.prepareCall(“{call get_area(?,?,?)}”);
            cstmt.setInt(1, 20);
            cstmt.setInt(2, 30);
            cstmt.registerOutParameter(3, Types.DOUBLE);
           
            cstmt.execute();
           
            System.out.println(cstmt.getDouble(3));
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
   
    /**
     * 资源释放
     */
    public void close(){
        if(conn != null){
            try {
                conn.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }   
    }

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        TestCallableStatement tcs = new TestCallableStatement();
        //tcs.useAdddatatest3();
        tcs.useGetArea();
        tcs.close();
    }

}