Java調用MySQL的存儲過程,必要用JDBC連接,環境eclipse

首先查看MySQL中的數據庫的存儲過程,接著編寫代碼調用

mysql> show procedure status;

+------+-------------+-----------+----------------+---------------------+---------------------+---------------+---------+----------------------+----------------------+--------------------+| Db | Name | Type | Definer | Modified | Created | Security_type | Comment | character_set_client | collation_connection | Database Collation |+------+-------------+-----------+----------------+---------------------+---------------------+---------------+---------+----------------------+----------------------+--------------------+| book | findAllBook | PROCEDURE | root@localhost | 2016-09-04 11:13:31 | 2016-09-04 11:13:31 | DEFINER | | gbk | gbk_chinese_ci | utf8_general_ci || book | pro_test | PROCEDURE | root@localhost | 2016-11-13 08:27:17 | 2016-11-13 08:27:17 | DEFINER | | gbk | gbk_chinese_ci | utf8_general_ci || book | pro_user | PROCEDURE | root@localhost | 2016-11-13 08:44:34 | 2016-11-13 08:44:34 | DEFINER | | gbk | gbk_chinese_ci | utf8_general_ci |+------+-------------+-----------+----------------+---------------------+---------------------+---------------+---------+----------------------+----------------------+--------------------+3 rows in set (0.01 sec)

mysql> show create procedure findAllBook;

+-------------+------------------------+---------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+| Procedure | sql_mode | Create Procedure | character_set_client | collation_connection | Database Collation |

+-------------+------------------------+---------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+

| findAllBook | NO_ENGINE_SUBSTITUTION | CREATE DEFINER=`root`@`localhost` PROCEDURE `findAllBook`()begin

select * from tb_books;end | gbk | gbk_chinese_ci | utf8_general_ci |+-------------+------------------------+---------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+1 row in set (0.00 sec)

1.工程目錄布局

2.Book.java

package com.scd.book;

public class Book {

private String name; //圖書名稱

private double price; //價格

private int bookCount; //數量

private String author; //作者

public String getName()

{

//System.out.println(name);

return name;

}

public void setName(String name)

{

this.name = name;

}

public double getPrice()

{

return price;

}

public void setPrice(double price)

{

this.price = price;

}

public int getBookCount()

{

return bookCount;

}

public void setBookCount(int bookCount)

{

this.bookCount = bookCount;

}

public String getAuthor()

{

return author;

}

public void setAuthor(String author)

{

//System.out.println(author);

this.author = author;

}

}

2.FindBook.java

package com.scd.book;

import java.sql.CallableStatement;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.util.ArrayList;

import java.util.List;

public class FindBook {

/**

* 獲取數據庫連接

* @return Connection對象

*/

public Connection getConnection()

{

Connection conn = null; //數據庫連接

try

{

Class.forName("com.mysql.jdbc.Driver"); //加載數據庫驅動,注冊到驅動管理器

/*數據庫鏈接地址*/

String url = "jdbc:mysql://localhost:3306/book?useUnicode=true&characterEncoding=UTF-8";

String username = "root";

String password = "123456";

/*創建Connection鏈接*/

conn = DriverManager.getConnection(url, username, password);

}

catch (ClassNotFoundException e){

e.printStackTrace();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return conn; //返回數據庫連接

}

/**

* 通過存儲過程查詢數據

* @return List<Book>

*/

public List<Book> findAll()

{

List <Book> list = new ArrayList<Book>(); //實例化List對象

Connection conn = getConnection(); //創建數據庫連接

try

{

//調用存儲過程

CallableStatement cs = conn.prepareCall("{call findAllBook()}");

ResultSet rs = cs.executeQuery(); //執行查詢操作,并獲取結果集

while(rs.next())

{

Book book = new Book(); //實例化Book對象

book.setName(rs.getString("name")); //對name屬性賦值

book.setPrice(rs.getDouble("price")); //對price屬性賦值

book.setBookCount(rs.getInt("bookCount")); //對bookCount屬性賦值

book.setAuthor(rs.getString("author")); //對author屬性賦值

list.add(book);

}

}catch(Exception e)

{

e.printStackTrace();

}

return list; //返回list

}

/**

* 主函數 調用存儲過程(測試使用)

* @param args

*/

public static void main(String[] args)

{

FindBook fb = new FindBook();

//System.out.println(fb.findAll());

for (Book book : fb.findAll())

{

System.out.print(book.getName() + "--" + book.getPrice() + "--");

System.out.print(book.getBookCount() + "--" + book.getAuthor());

System.out.println();

}

}

}

3.右鍵 Run As --> Java Application, 控制臺輸出

4.執行存儲過程中的 sql語句

mysql> select * from tb_books;

+------------------+-------+-----------+----------+

| name | price | bookCount | author |

+------------------+-------+-----------+----------+

| Java叢入門到精通 | 56.78 | 13 | Mr. Sun |

| 數據布局 | 67.3 | 8962 | Mr. Sun |

| 編譯原理 | 78.66 | 5767 | Mr. Sun |

| 數據布局 | 67.42 | 775 | Mr.Cheng |

+------------------+-------+-----------+----------+

rows in set (0.00 sec)

mysql> call findAllBook();

+------------------+-------+-----------+----------+

| name | price | bookCount | author |

+------------------+-------+-----------+----------+

| Java叢入門到精通 | 56.78 | 13 | Mr. Sun |

| 數據布局 | 67.3 | 8962 | Mr. Sun |

| 編譯原理 | 78.66 | 5767 | Mr. Sun |

| 數據布局 | 67.42 | 775 | Mr.Cheng |

+------------------+-------+-----------+----------+

rows in set (0.00 sec)

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