Java調用MySQL存儲過程

    Java調用MySQL的存儲過程，須要用JDBC鏈接，環境eclipse

    首先查看MySQL中的數據庫的存儲過程，接着編寫代碼調用

   

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.工程目錄結構

   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; //做者

    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 {
    /**
     * 獲取數據庫鏈接
     * @return Connection對象
     */
    public Connection getConnection()
    {
        Connection conn = null;   //數據庫鏈接
        try
        {
            Class.forName("com.mysql.jdbc.Driver"); //加載數據庫驅動，註冊到驅動管理器
            /*數據庫連接地址*/
            String url = "jdbc:mysql://localhost:3306/book?useUnicode=true&characterEncoding=UTF-8";
            String username = "root";
            String password = "123456";
            /*建立Connection連接*/
            conn = DriverManager.getConnection(url, username, password); 
            
        }
        catch (ClassNotFoundException e){
            
            e.printStackTrace();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return conn;  //返回數據庫鏈接
        
    }
    /**
     * 經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();  //建立數據庫鏈接
        try
        {
            //調用存儲過程
            CallableStatement cs = conn.prepareCall("{call findAllBook()}");
            ResultSet rs = cs.executeQuery(); //執行查詢操做，並獲取結果集
            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, 控制檯輸出

4.執行存儲過程當中的 sql語句

mysql> select * from tb_books;
+------------------+-------+-----------+----------+
| name             | price | bookCount | author   |
+------------------+-------+-----------+----------+
| Java叢入門到精通 | 56.78 |        13 | Mr. Sun  |
| 數據結構         |  67.3 |      8962 | Mr. Sun  |
| 編譯原理         | 78.66 |      5767 | Mr. Sun  |
| 數據結構         | 67.42 |       775 | Mr.Cheng |
+------------------+-------+-----------+----------+
4 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 |
| 數據結構 | 67.3 | 8962 | Mr. Sun |
| 編譯原理 | 78.66 | 5767 | Mr. Sun |
| 數據結構 | 67.42 | 775 | Mr.Cheng |
+------------------+-------+-----------+----------+
4 rows in set (0.00 sec)