An e-commerce company needs to develop a user order management system to facilitate customer service to view user order information. The system is required to realize the following functions:

1. After starting the program, enter the main interface and display all order information, the effect is shown in Figure 1:

2. Enter the correct order number in the order number text box to display the order information, as shown in Figure 2:

3. After selecting an order, click the delete button to prompt whether you really want to delete it, and delete the data after confirming. As shown in Figure 3:

4. After the deletion is successful, the deleted order information will be displayed. As shown in Figure 4:

Four, database design

The database is named OrderDb, and the table structure is as follows.

Table 1 Order table (tb_order)

Column name	meaning	type of data	Constraint (description)
id	Numbering	int	Primary key, automatic growth
name	product name	varchar(20)	non empty
price	price	decimal(5,2)	non empty
orderID	Owned order number	varchar(20)	non empty
descinfo	description	varchar(100)

5. Specific requirements and recommended implementation steps

Create database and table
Create an order entity class
Create the BaseDAO class to complete the database connection and close
Create OrderDAO to complete the query and delete function of the order
Create MainFrame class and add corresponding components to complete the interface design
Add JTable to MainFrame to complete data display.
Add Jbutton in MainFrame to complete data deletion
Add a text box in MainFrame to complete a single data search

Six, matters needing attention

Topic: Logistics Tracking Management System
The scoring criteria for this program are as follows:
10	Database and table
	6 points for correct creation of database and table, 4 points for test data. Must be submitted in a separate database or script, otherwise the item will not be scored
5	Create and write entity classes correctly, including all attributes and methods
10	Create and write BaseDAO correctly to complete the database connection (5 points) and close (5 points).
30	Create and write OrderDAO correctly to complete data query and delete
	10	List data query
	10	Single data query
	10	Data deletion
40	Create and write MainFrame class to complete interface design and function call
	5	The design of each component in Figure 1
	10	Data display in Figure 1
	10	A single piece of data in Figure 2 and correctly displayed in JTable
	5	Single data deletion query in Figure 3
	10	The data in Figure 4 is deleted and the new data is displayed in the Jtable.
5	Overall programming techniques
	2	Coding Standards
	3	Perfect annotation
Total score		100 points

Implementation code:

One, the database

-- ----------------------------
-- Table structure for tb_order
-- ----------------------------
DROP TABLE IF EXISTS `tb_order`;
CREATE TABLE `tb_order` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(20) NOT NULL,
  `price` decimal(10,2) NOT NULL,
  `orderid` varchar(20) DEFAULT NULL,
  `descinfo` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of tb_order
-- ----------------------------
INSERT INTO `tb_order` VALUES ('1', 'iphones Max', '8999.00', '5325781', '杨明金的订单');
INSERT INTO `tb_order` VALUES ('2', '小米10', '3655.00', '20201005', '杨杨的订单');
INSERT INTO `tb_order` VALUES ('3', '华为荣耀10 =', '3200.00', '20201102', '小白的订单');

二、Java Swing

com.ynavc.Bean

tb_order.java

package com.ynavc.Base;

public class tb_order {
	private int id;
	private String name;
	private double price;
	private int orderID;
	private String descinfo;
	public tb_order() {
		super();
	}
	public tb_order(int id, String name, double price, int orderID, String descinfo) {
		super();
		this.id = id;
		this.name = name;
		this.price = price;
		this.orderID = orderID;
		this.descinfo = descinfo;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		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 getOrderID() {
		return orderID;
	}
	public void setOrderID(int orderID) {
		this.orderID = orderID;
	}
	public String getDescinfo() {
		return descinfo;
	}
	public void setDescinfo(String descinfo) {
		this.descinfo = descinfo;
	}

}

com.ynavc.BaseDAO

DbConnection.java

package com.ynavc.BaseDAO;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
 
import javax.swing.JOptionPane;
 
import com.mysql.jdbc.Statement;
 
public class DbConnection {
	//驱动类的类名
	private static final String DRIVERNAME="com.mysql.jdbc.Driver";
	//连接数据的URL路径
	private static final String URL="jdbc:mysql://127.0.0.1:3306/orderdb";
	//数据库登录账号
	private static final String USER="root";
	//数据库登录密码
	private static final String PASSWORD="root123";
	//加载驱动
	static{
		try {
			Class.forName(DRIVERNAME);
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		}
	}
    //获取数据库连接
	public static Connection getConnection() {
	          try {
		return DriverManager.getConnection(URL,USER,PASSWORD);
	           } catch (SQLException e) {	
		e.printStackTrace();
	           }
			return null;
	}
	//查询
	public static ResultSet query(String sql) {
		System.out.println(sql);
		//获取连接
		Connection connection=getConnection();
		PreparedStatement psd;
		try {
			psd = connection.prepareStatement(sql);
			return psd.executeQuery();
		} catch (SQLException e) {
			JOptionPane.showMessageDialog(null,"执行语句出错\n"+e.toString());
			e.printStackTrace();
		}
		return null;
	}
	//增、删、改、查
		public static int updataInfo(String sql) {
			System.out.println(sql);
			//获取连接
			Connection connection=getConnection();
			try {
				PreparedStatement psd=connection.prepareStatement(sql);
				return psd.executeUpdate();
			} catch (SQLException e) {
				JOptionPane.showMessageDialog(null,"执行语句出错\n"+e.toString());
				e.printStackTrace();
			}
			return 0;
		}
	//关闭连接
	public static void colse(ResultSet rs,Statement stmt,Connection  conn) throws Exception{
		try { 
			if (rs != null){
				rs.close(); 
			}
            if (stmt != null){
            	stmt.cancel(); 
            }
		 if (conn != null) { conn.close(); }
	   } catch (Exception e) {
		   e.printStackTrace(); throw new Exception();
	   }
	}
}

com.ynavc.OrderDAO

Update.java

package com.ynavc.OrderDAO;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

import com.ynavc.Base.tb_order;
import com.ynavc.BaseDAO.DbConnection;

public class Update {
	//查询主页信息
	public Object[][] getMainInfo(String id) {
		String sql;
		if (id.equals("")) {
			sql = "select * from tb_order";
		}else {
			sql = "select * from tb_order WHERE orderid LIKE '"+id+"%';";
		}
		ResultSet re = DbConnection.query(sql);
		ArrayList<tb_order> list = new ArrayList<tb_order>();
		try {
			while (re.next()) {
				tb_order tb = new tb_order();
				tb.setId(re.getInt(1));
				tb.setName(re.getString(2));
				tb.setPrice(re.getDouble(3));
				tb.setOrderID(re.getInt(4));
				tb.setDescinfo(re.getString(5));
				list.add(tb);
			}
		} catch (SQLException e) {
			e.printStackTrace();
		}
		Object[][] ob = new Object[list.size()][5];
		for (int i = 0; i < list.size(); i++) {
			ob[i][0] = list.get(i).getId();
			ob[i][1] = list.get(i).getName();
			ob[i][2] = list.get(i).getPrice();
			ob[i][3] = list.get(i).getOrderID();
			ob[i][4] = list.get(i).getDescinfo();
		}
		return ob;
	}
	//删除数据
	public int addData(int id) {
		String sql = "DELETE FROM tb_order WHERE id='"+id+"';";
		return DbConnection.updataInfo(sql);
	}

}

com.ynavc.Vive

MainFrame.java

package com.ynavc.Vive;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel;

import com.ynavc.OrderDAO.Update;

import javax.swing.JButton;

public class MainFrame extends JFrame {
	private JTextField orderid;
	Update update = new Update();
	Object[] header = {"编号","商品名称","商品价格","订单编号","订单描述"};
	Object[][] data = update.getMainInfo("");
	DefaultTableModel df = new DefaultTableModel(data, header);
	
	public MainFrame() {
		super("物流a跟踪管理系统");
		this.setBounds(0, 0, 700, 500);
		getContentPane().setLayout(null);
		this.setLocationRelativeTo(null);
		this.setResizable(false);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		JLabel title = new JLabel("物流跟踪管理系统");
		title.setFont(new Font("宋体", Font.BOLD, 40));
		title.setBounds(182, 13, 336, 50);
		getContentPane().add(title);
		
		JLabel orderid_text = new JLabel("订单编号");
		orderid_text.setBounds(14, 70, 72, 18);
		getContentPane().add(orderid_text);
		
		orderid = new JTextField();
		orderid.setBounds(80, 67, 179, 24);
		getContentPane().add(orderid);
		orderid.setColumns(10);
		
		JButton seach = new JButton("搜索");
		seach.setBounds(273, 66, 90, 27);
		getContentPane().add(seach);
		seach.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				if (orderid.equals("")) {
					JOptionPane.showMessageDialog(null, "请输入要查询的订单编号！");
				} else {
					String id = orderid.getText();
					data = update.getMainInfo(id);
					df.setDataVector(data, header);
				}
			}
		});
		
		JTable jTable = new JTable(df);
		JScrollPane scrollPane = new JScrollPane(jTable);
		scrollPane.setBounds(14, 104, 666, 302);
		getContentPane().add(scrollPane);
		
		JButton delete = new JButton("删除");
		delete.setBounds(590, 425, 90, 27);
		getContentPane().add(delete);
		delete.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				if (jTable.getSelectedColumn()<0) {
					JOptionPane.showMessageDialog(null, "请选择要删除的数据！");
				} else {
					int num = JOptionPane.showConfirmDialog(null, "您真的真的要删除吗？","温馨提示", 0,1);
					int id = Integer.parseInt(jTable.getValueAt(jTable.getSelectedRow(), 0).toString());
					if(num == JOptionPane.OK_OPTION){
						int result = update.addData(id);
						if (result>0) {
							JOptionPane.showMessageDialog(null, "删除成功！");
							orderid.setText("");
						} else {
							JOptionPane.showMessageDialog(null, "删除失败！");
						}
					}
				}
			}
		});
		
	}
	public static void main(String[] args) {
		new MainFrame().setVisible(true);
	}
}

com.ynavc.Test

Test.java

package com.ynavc.Test;

import com.ynavc.Vive.MainFrame;

public class Test {

	public static void main(String[] args) {
		new MainFrame().setVisible(true);
	}

}

"Logistics Tracking Management System" · Java Swing + MySQL JDBC development, Meihe Yisi final examination machine test questions

table of Contents

Document description:

1. Language and environment

2. Technical requirements

3. Functional requirements