sqlserver数据库管理系统的简单实现

java与sqlserver数据库大赛项目的简单实现(药品进销系统)

近期参加数据库大赛,过程中利用sqlserver数据库与java(AWT组件)语言写了一个简单的药品进销系统.

在这次项目中 我明确了关于这个管理系统的各项功能 包括登录 注册 查找药品 买药 卖药 以及对卖药后的客户记录 库存数量

以下是关于这个数据库的相关信息

数据库的四张表

这四张表分别对应了售卖药品后所卖客户的信息,买药或售药后药品的存储信息,药品 的相关信息 包括生产日期 ,年限,名称等,员工信息.

JDBC类

之后便是JDBC,JDBC是java连接数据库的工具类 方便利用java语言实现数据库的增删查改，对于数据库操作的相关命令 不要忘了导入sqlserver的jar包,同时在url那一行不要忘记数据库的名字.

import java.sql.Connection;

import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Vector;

public class JDBC {
	    private String name="com.microsoft.sqlserver.jdbc.SQLServerDriver";
	    private String url="jdbc:sqlserver://127.0.0.1:1433;DatabaseName=first";
	    private Connection con;
	    private Statement st;
		public JDBC(){
		try{
		Class.forName(name);
		con=DriverManager.getConnection(url, "sa","95uoh16j");
		}catch(Exception e){
			System.out.println(	e.toString());
			}
		}
		@SuppressWarnings({  "rawtypes", "unchecked" })
		public Vector select(String sqls){
			Vector row=new Vector<>();
			Vector hang =new Vector<>();
			int sum=0;
			try {
				st=con.createStatement();
				ResultSet rs=st.executeQuery(sqls);
				while(rs.next()){
					hang.add(rs.getString(1));
					hang.add(rs.getString(2));
					hang.add(rs.getString(3));
					hang.add(rs.getDate(4));
					hang.add(rs.getInt(5));
					hang.add(rs.getString(6));
					hang.add(rs.getFloat(7));
					hang.add(rs.getInt(8));
				}
				String s="select *from 库存信息 where 药品编号='"+hang.get(0)+"'";
				rs=st.executeQuery(s);
				while(rs.next()){
					sum=sum+rs.getInt(3)-rs.getInt(4);
				}
				hang.add(7, sum);
				row.add(hang);
				rs.close();
				st.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			return row;
		}
		@SuppressWarnings({ "rawtypes", "unchecked" })
		public Vector selectPassword(String sqls){
			Vector row=new Vector<>();
			try {
				st=con.createStatement();
				ResultSet rs=st.executeQuery(sqls);
				rs.next();
					row.add(rs.getString(1));
					row.add(rs.getString(2));
					row.add(rs.getString(3));
					row.add(rs.getInt(4));
					row.add(rs.getString(5));
					row.add(rs.getString(6));
					row.add(rs.getString(7));
					rs.close();
					st.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			return row;
		}
		public void update_1(Object values[]){
			String sqls="update 药品信息 set 入库数量=入库数量+"+Integer.valueOf(values[1].toString()).intValue()+" where 药品编号='"+values[0].toString()+"'";
			String sql="update 库存信息 set 入库数量=入库数量+"+Integer.valueOf(values[1].toString()).intValue()+" where 药品编号='"+values[0].toString()+"'";
			try {
				st=con.createStatement();
				st.execute(sqls);
				st.execute(sql);
				st.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
		public void update_2(Object values[]){
			String sqls="update 库存信息 set 出库数量=出库数量+"+Integer.valueOf(values[1].toString()).intValue()+" where 药品编号='"+values[0].toString()+"'";
			try {
				st=con.createStatement();
				st.execute(sqls);
				st.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
		public void send_1(String sqls ,Object []values){
			try{
				PreparedStatement prepare=con.prepareStatement(sqls);
				prepare.setString(1, (String)values[0]);
				prepare.setString(2, (String)values[1]);
				prepare.setString(3, (String)values[2]);
				prepare.setString(4, (String)values[3]);
				prepare.setString(5, (String)values[4]);
				prepare.setInt(6, (int)values[5]);
				prepare.execute();
				prepare.close();
			}catch(Exception e){
				e.printStackTrace();
				}
			}
		public void send_2(String sqls ,Object []values){
			try{
				PreparedStatement prepare=con.prepareStatement(sqls);
				prepare.setString(1, (String)values[0]);
				prepare.setString(2, (String)values[1]);
				prepare.setString(3, (String)values[2]);
				prepare.setInt(4, (int)values[3]);
				prepare.setString(5, (String)values[4]);
				prepare.setString(6, (String)values[5]);
				prepare.setString(7, (String )values[6]);
				prepare.execute();
				prepare.close();
			}catch(Exception e){
				e.printStackTrace();
				}
			}
}

实现注册登录的界面

/**
 * 本类是专门写主页面
 * 
 *  */
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

@SuppressWarnings("serial")
public class MainInterface extends JFrame implements ActionListener{
	JPanel con=new JPanel();
	private JLabel title;
	private JLabel use;
	private JLabel password;
	private JTextField t_use;
	private JTextField t_password;
	private JButton sure;
	private JButton register;
	JDBC jdbc;

	public MainInterface(){
	
		con.setLayout(new BorderLayout());
		
		JPanel jp=new JPanel(null); 
		
		use=new JLabel("用户名 : ");
		use.setBounds(160,130,100,50);
		
		t_use=new JTextField();
		t_use.setBounds(220, 135,150,30);
		
		password=new JLabel("密码 : ");
		password.setBounds(160,190,100,50);
		
		t_password=new JTextField();
		t_password.setBounds(220,200,150,30);
		
		sure=new JButton("确定");
		sure.setBounds(200,250,60,30);
		sure.addActionListener(this);
		
		register=new JButton("注册");
		register.setBounds(320,250,60,30);
		register.addActionListener(this);

		title=new JLabel("药品库");
		
		title.setFont(new Font("华文行楷", Font.PLAIN, 40));
		title.setLocation(100,50);
		title.setSize(400,40);
		
		jp.add(title);
		jp.add(use);
		jp.add(t_use);
		jp.add(password);
		jp.add(t_password);
		jp.add(sure);
		jp.add(register);

		con.add(jp,BorderLayout.CENTER);
		this.add(con);
		this.setBounds(350, 100, 0, 0);
		this.setName("药品进销信息系统");
		this.setSize(600,400);
		this.setVisible(true);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	@SuppressWarnings("unchecked")
	@Override
	public void actionPerformed(ActionEvent e) {
		if(e.getSource()==sure){
			Vector