西蒙购物网的测试(访问层测试)

****（一）创建数据库
创建MySQL数据库simonshop，包含四张表：用户表（t_user）、类别表（t_category）、商品表（t_product）和订单表（t_order）。

1.用户表t_user

2.类别表t_category

3.商品表t_product

4.订单表t_order

(二)创建Web项目simonshop
1.创建Web项目simonshop

2.项目的配置：

(三)创建实体类
在src里创建net.hw.shop.bean包，创建四个实体类：User、Category、Product与Order，与四张表t_user、t_category、t_product与t_order一一对应。
1.用户实体类User


package net.yhj.bean;import java.util.Date;public class User {/*** 用户标识符*/private int id;/*** 用户名*/private String username;/*** 密码*/private String password;/*** 电话号码*/private String telephone;/*** 注册时间*/private Date registerTime;/*** 权限（0：管理员；1：普通用户）*/private int popedom;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getTelephone() {return telephone;}public void setTelephone(String telephone) {this.telephone = telephone;}public Date getRegisterTime() {return registerTime;}public void setRegisterTime(Date registerTime) {this.registerTime = registerTime;}public int getPopedom() {return popedom;}public void setPopedom(int popedom) {this.popedom = popedom;}@Overridepublic String toString() {return "User [id=" + id + ", username=" + username + ", password=" + password + ", telephone=" + telephone+ ", registerTime=" + registerTime + ", popedom=" + popedom + "]";}
}

2.类别实体类Category

package net.yhj.bean;public class Category {/*** 类别标识符*/private int id;/*** 类别名称*/private String name;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;}@Overridepublic String toString() {return "Category [id=" + id + ", name=" + name + "]";}
}

3.商品实体类Product


package net.yhj.bean;import java.util.Date;public class Product {/*** 商品标识符*/private int id;/*** 商品名称*/private String name;/*** 商品单价*/private double price;/*** 商品上架时间*/private Date addTime;/*** 商品所属类别标识符*/private int categoryId;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 Date getAddTime() {return addTime;}public void setAddTime(Date addTime) {this.addTime = addTime;}public int getCategoryId() {return categoryId;}public void setCategoryId(int categoryId) {this.categoryId = categoryId;}@Overridepublic String toString() {return "Product [id=" + id + ", name=" + name + ", price=" + price + ", addTime=" + addTime+ ", categoryId=" + categoryId + "]";}
}

4.订单实体类Order


package net.yhj.bean;import java.util.Date;public class Order {/*** 订单标识符*/private int id;/*** 用户名*/private String username;/*** 联系电话*/private String telephone;/*** 订单总金额*/private double totalPrice;/*** 送货地址*/private String deliveryAddress;/*** 下单时间*/private Date orderTime;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getTelephone() {return telephone;}public void setTelephone(String telephone) {this.telephone = telephone;}public double getTotalPrice() {return totalPrice;}public void setTotalPrice(double totalPrice) {this.totalPrice = totalPrice;}public String getDeliveryAddress() {return deliveryAddress;}public void setDeliveryAddress(String deliveryAddress) {this.deliveryAddress = deliveryAddress;}public Date getOrderTime() {return orderTime;}public void setOrderTime(Date orderTime) {this.orderTime = orderTime;}@Overridepublic String toString() {return "Order [id=" + id + ", username=" + username + ", telephone=" + telephone + ", totalPrice=" + totalPrice+ ", deliveryAddress=" + deliveryAddress + ", orderTime=" + orderTime + "]";}
}

(四)创建数据库工具类ConnectionManager
1、在web\WEB-INF目录下创建lib子目录，添加MySQL驱动程序的jar包

2.在在src下创建net.yhj.dbutil包，在里面创建ConnectionManager类

package net.yhj.dbutil;import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;import javax.swing.JOptionPane;public class ConnectionManager {/*** 数据库驱动程序*/private static final String DRIVER = "com.mysql.jdbc.Driver";/*** 数据库统一资源标识符*/private static final String URL = "jdbc:mysql://localhost:3306/simonshop";/*** 数据库用户名*/private static final String USERNAME = "root";/*** 数据库密码*/private static final String PASSWORD = "P@ssw0rd";/*** 私有化构造方法，拒绝实例化*/private ConnectionManager() {}/*** 获得数据库连接** @return 数据库连接对象*/public static Connection getConnection() {// 定义数据库连接Connection conn = null;try {// 安装数据库驱动程序Class.forName(DRIVER);// 获得数据库连接conn = DriverManager.getConnection(URL+ "?useUnicode=true&characterEncoding=UTF8", USERNAME, PASSWORD);} catch (ClassNotFoundException e) {e.printStackTrace();} catch (SQLException e) {e.printStackTrace();}// 返回数据库连接return conn;}/*** 关闭数据库连接** @param conn*/public static void closeConnection(Connection conn) {// 判断数据库连接是否为空if (conn != null) {// 判断数据库连接是否关闭try {if (!conn.isClosed()) {// 关闭数据库连接conn.close();}} catch (SQLException e) {e.printStackTrace();}}}/*** 测试数据库连接是否成功** @param args*/public static void main(String[] args) {// 获得数据库连接Connection conn = getConnection();// 判断是否连接成功if (conn != null) {JOptionPane.showMessageDialog(null, "恭喜，数据库连接成功！");} else {JOptionPane.showMessageDialog(null, "遗憾，数据库连接失败！");}// 关闭数据库连接closeConnection(conn);}
}

运行程序，插看结果：

（五）数据访问接口
在src里创建net.hw.shop.dao包，在里面创建UserDao、CategoryDao、ProductDao与OrderDao。
1.用户数据访问接口UserDao


package net.yhj.dao;import java.util.List;import net.yhj.bean.User;public interface UserDao {// 插入用户int insert(User user);// 按标识符删除用户int deleteById(int id);// 更新用户int update(User user);// 按标识符查询用户User findById(int id);// 按用户名查询用户List<User> findByUsername(String username);// 查询全部用户List<User> findAll();// 用户登录User login(String username, String password);
}

2.类别数据访问接口CategoryDao


package net.yhj.dao;import java.util.List;import net.yhj.bean.Category;public interface CategoryDao {// 插入类别int insert(Category category);// 按标识符删除类别int deleteById(int id);// 更新类别int update(Category category);// 按标识符查询类别Category findById(int id);// 查询全部类别List<Category> findAll();
}

3.商品数据访问接口ProductDao

package net.yhj.dao;import java.util.List;import net.yhj.bean.Product;public interface ProductDao {// 插入商品int insert(Product product);// 按标识符删除商品int deleteById(int id);// 更新商品int update(Product product);// 按标识符查询商品Product findById(int id);// 按类别查询商品List<Product> findByCategoryId(int categoryId);// 查询全部商品List<Product> findAll();
}

4.订单数据访问接口OrderDao

package net.yhj.dao;import java.util.List;import net.yhj.bean.Order;public interface OrderDao {// 插入订单int insert(Order order);// 按标识符删除订单int deleteById(int id);// 更新订单int update(Order order);// 按标识符查询订单Order findById(int id);// 查询最后一个订单Order findLast();// 查询全部订单List<Order> findAll();
}

(六)数据访问接口实现类XXXDaoImpl
在src下创建net.hw.shop.dao.impl包，在里面创建UserDaoImpl、CategoryDaoImpl、ProductDaoImpl与OrderDaoImpl。
1.在dao包下再接一个包impl

2.用户数据访问接口实现类UserDaoImpl

package net.yhj.dao.impl;import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.List;import net.yhj.bean.Category;
import net.yhj.bean.User;
import net.yhj.dao.UserDao;
import net.yhj.dbutil.ConnectionManager;
import sun.awt.image.PixelConverter.Rgba;public class UserDaoImpl implements UserDao {/*** 插入用户*/@Overridepublic int insert(User user) {// 定义插入记录数int count = 0;// 获得数据库连接Connection conn = ConnectionManager.getConnection();// 定义SQL字符串String strSQL = "INSERT INTO t_user (username, password, telephone, register_time, popedom)"+ " VALUES (?, ?, ?, ?, ?)";try {// 创建预备语句对象PreparedStatement pstmt = conn.prepareStatement(strSQL);// 设置占位符的值pstmt.setString(1, user.getUsername());pstmt.setString(2, user.getPassword());pstmt.setString(3, user.getTelephone());pstmt.setTimestamp(4, new Timestamp(user.getRegisterTime().getTime()));pstmt.setInt(5, user.getPopedom());// 执行更新操作，插入新记录count = pstmt.executeUpdate();// 关闭预备语句对象pstmt.close();} catch (SQLException e) {e.printStackTrace();} finally {ConnectionManager.closeConnection(conn);}// 返回插入记录数return count;}/*** 删除用户记录*/@Overridepublic int deleteById(int id) {// 定义删除记录数int count = 0;// 获得数据库连接Connection conn = ConnectionManager.getConnection();// 定义SQL字符串String strSQL = "DELETE FROM t_user WHERE id = ?";try {// 创建预备语句对象PreparedStatement pstmt = conn.prepareStatement(strSQL);// 设置占位符的值pstmt.setInt(1, id);// 执行更新操作，删除记录count = pstmt.executeUpdate();// 关闭预备语句对象pstmt.close();} catch (SQLException e) {e.printStackTrace();} finally {ConnectionManager.closeConnection(conn);}// 返回删除记录数return count;}/*** 更新用户*/@Overridepublic int update(User user) {// 定义更新记录数int count = 0;// 获得数据库连接Connection conn = ConnectionManager.getConnection();// 定义SQL字符串String strSQL = "UPDATE t_user SET username = ?, password = ?, telephone = ?,"+ " register_time = ?, popedom = ? WHERE id = ?";try {// 创建预备语句对象PreparedStatement pstmt = conn.prepareStatement(strSQL);// 设置占位符的值pstmt.setString(1, user.getUsername());pstmt.setString(2, user.getPassword());pstmt.setString(3, user.getTelephone());pstmt.setTimestamp(4, new Timestamp(user.getRegisterTime().getTime()));pstmt.setInt(5, user.getPopedom());pstmt.setInt(6, user.getId());// 执行更新操作，更新记录count = pstmt.executeUpdate();// 关闭预备语句对象pstmt.close();} catch (SQLException e) {e.printStackTrace();} finally {ConnectionManager.closeConnection(conn);}// 返回更新记录数return count;}/*** 按标识符查询用户*/@Overridepublic User findById(int id) {// 声明用户User user = null;// 获取数据库连接对象Connection conn = ConnectionManager.getConnection();// 定义SQL字符串String strSQL = "SELECT * FROM t_user WHERE id = ?";try {// 创建预备语句对象PreparedStatement pstmt = conn.prepareStatement(strSQL);// 设置占位符的值pstmt.setInt(1, id);// 执行SQL查询，返回结果集ResultSet rs = pstmt.executeQuery();// 判断结果集是否有记录if (rs.next()) {// 实例化用户user = new User();// 利用当前记录字段值去设置商品类别的属性user.setId(rs.getInt("id"));user.setUsername(rs.getString("username"));user.setPassword(rs.getString("password"));user.setTelephone(rs.getString("telephone"));user.setRegisterTime(rs.getTimestamp("register_time"));user.setPopedom(rs.getInt("popedom"));}} catch (SQLException e) {e.printStackTrace();} finally {ConnectionManager.closeConnection(conn);}// 返回用户return user;}@Overridepublic List<User> findByUsername(String username) {// 声明用户列表List<User> users = new ArrayList<User>();// 获取数据库连接对象Connection conn = ConnectionManager.getConnection();// 定义SQL字符串String strSQL = "SELECT * FROM t_user WHERE username = ?";try {// 创建预备语句对象PreparedStatement pstmt = conn.prepareStatement(strSQL);// 设置占位符的值pstmt.setString(1, username);// 执行SQL查询，返回结果集ResultSet rs = pstmt.executeQuery();// 遍历结果集while (rs.next()) {// 创建类别实体User user = new User();// 设置实体属性user.setId(rs.getInt("id"));user.setUsername(rs.getString("username"));user.setPassword(rs.getString("password"));user.setTelephone(rs.getString("telephone"));user.setRegisterTime(rs.getTimestamp("register_time"));user.setPopedom(rs.getInt("popedom"));// 将实体添加到用户列表users.add(user);}// 关闭结果集rs.close();// 关闭语句对象pstmt.close();} catch (SQLException e) {e.printStackTrace();} finally {// 关闭数据库连接ConnectionManager.closeConnection(conn);}// 返回用户列表return users;}@Overridepublic List<User> findAll() {// 声明用户列表List<User> users = new ArrayList<User>();// 获取数据库连接对象Connection conn = ConnectionManager.getConnection();// 定义SQL字符串String strSQL = "SELECT * FROM t_user";try {// 创建语句对象Statement stmt = conn.createStatement();// 执行SQL，返回结果集ResultSet rs = stmt.executeQuery(strSQL);// 遍历结果集while (rs.next()) {// 创建用户实体User user = new User();// 设置实体属性user.setId(rs.getInt("id"));user.setUsername(rs.getString("username"));user.setPassword(rs.getString("password"));user.setTelephone(rs.getString("telephone"));user.setRegisterTime(rs.getTimestamp("register_time"));user.setPopedom(rs.getInt("popedom"));// 将实体添加到用户列表users.add(user);}// 关闭结果集rs.close();// 关闭语句对象stmt.close();} catch (SQLException e) {e.printStackTrace();} finally {// 关闭数据库连接ConnectionManager.closeConnection(conn);}// 返回用户列表return users;}/*** 登录方法*/@Overridepublic User login(String username, String password) {// 定义用户对象User user = null;// 获取数据库连接Connection conn = ConnectionManager.getConnection();// 定义SQL字符串String strSQL = "SELECT * FROM t_user WHERE username = ? AND password = ?";try {// 创建预备语句对象PreparedStatement psmt = conn.prepareStatement(strSQL);// 设置占位符的值psmt.setString(1, username);psmt.setString(2, password);// 执行查询，返回结果集ResultSet rs = psmt.executeQuery();// 判断结果集是否有记录if (rs.next()) {// 实例化用户对象user = new User();// 用记录值设置用户属性user.setId(rs.getInt("id"));user.setUsername(rs.getString("username"));user.setPassword(rs.getString("password"));user.setTelephone(rs.getString("telephone"));user.setRegisterTime(rs.getDate("register_time"));user.setPopedom(rs.getInt("popedom"));}// 关闭结果集rs.close();// 关闭预备语句psmt.close();} catch (SQLException e) {e.printStackTrace();} finally {// 关闭数据库连接ConnectionManager.closeConnection(conn);}// 返回用户对象return user;}
}

(七)对dao包中的UserDaoimpl中的七个方法进行测试

1.insert方法进行测试

   @Testpublic void testInsert(){UserDao userDao = new UserDaoImpl();User user = new User();user.setId(6);user.setUsername("杨海军");user.setPassword("904211");user.setTelephone("15609052574");user.setRegisterTime(Timestamp.valueOf(LocalDateTime.now()));user.setPopedom(1);UserDao dao = new UserDaoImpl();int count = dao.insert(user);if(count > 0){System.out.println("插入成功！");}else{System.out.println("插入失败！");}user = userDao.findById(6);System.out.println(user);}

2.update方法测试

  @Testpublic void testUpdate(){//定义用户数据访问对象UserDao userDao = new UserDaoImpl();//找到id为4的用户User user =userDao.findById(4);//修改用户密码与电话user.setPassword("903213");user.setTelephone("13945457890");//利用用户数据访问对象的更新方法更新用户int count = userDao.update(user);//判断用户是否登录成功；if(count > 0){System.out.println("用户登录成功！");}else{System.out.println("用户登录失败！");}//再次查询id为4的用户【徐文燕】user = userDao.findById(4);//输出该用户的信息System.out.println(user);}

3.deleteByid方法的测试

  @Testpublic void testDeleteById(){UserDao userDao = new UserDaoImpl();User user = new User();int i = userDao.deleteById(10);if(i < 9 ){System.out.println("删除成功！");}else{System.out.println("删除失败！");}user = userDao.findById(10);System.out.println(user);}

4.findByid方法的测试

 @Testpublic void testFindById(){User user = new User();UserDao userDao =new UserDaoImpl();user = userDao.findById(1);if(user != null){System.out.println("找到了！");}else{System.out.println("没有找到！");}System.out.println(user);}

5.findAll方法测试

   @Testpublic void testFindAll(){List<User> users = new ArrayList<User>();UserDao userDao = new UserDaoImpl();users = userDao.findAll();if(users != null){System.out.println("找到了*.*");}else{System.out.println("没有找到了*.*");}System.out.println(users);}

6.login方法测试

  @Testpublic void testLogin(){String username,password;username = "admin";password = "12345";//创建用户数据访问对象UserDao userdao = new UserDaoImpl();//调用用户数据访问对象的登录方法User user =userdao.login(username,password);//判断用户是否登录成功if(user != null){System.out.println("登录成功！");}else{System.out.println("遗憾，登录失败！");}}

7.findUsername方法测试（两种方法）
1.利用for循环

 @Testpublic void testFindByUsername(){UserDao dao = new UserDaoImpl();List<User> students = dao.findByUsername("杨海军");for (User student : students) {System.out.println(student);}}

2.第二种方法：

 @Testpublic void testFindByUsername() {List<User> users = new ArrayList<User>();UserDao userDao = new UserDaoImpl();users = userDao.findByUsername("杨海军");if (users != null) {System.out.println("找到了！");} else {System.out.println("没有找到！");}System.out.println(users);}

（八）Category中的五个方法i进行测试
1.insert方法测试

 @Testpublic void testInsert(){CategoryDao categoryDao =new CategoryDaoImpl();Category category = new Category();category.setName("好吃的");category.setId(5);int count = categoryDao.insert(category);if (count > 0) {System.out.println("插入成功！");} else {System.out.println("插入失败！");}category = categoryDao.findById(5);System.out.println(category);}

2.deleteById方法测试

  @Testpublic void testDeleteById(){CategoryDao categoryDao =new CategoryDaoImpl();Category category = new Category();int i = categoryDao.deleteById(5);if (i < 6) {System.out.println("删除成功！");} else {System.out.println("删除失败！");}category = categoryDao.findById(5);System.out.println(category);}

3.UpDate方法测试

  @Testpublic void testUpDate(){CategoryDao categoryDao =new CategoryDaoImpl();//找到id为4的用户Category category = categoryDao.findById(4);//修改用户密码与电话category.setName("食品");category.setId(4);//利用用户数据访问对象的更新方法更新用户int count = categoryDao.update(category);//判断用户是否登录成功；if (count > 0) {System.out.println("用户登录成功！");} else {System.out.println("用户登录失败！");}//再次查询id为4的用户【徐文燕】category = categoryDao.findById(4);//输出该用户的信息System.out.println(category);}

4.FindById方法测试

 @Testpublic void testFindById(){CategoryDao categoryDao =new CategoryDaoImpl();Category category = new Category();category= categoryDao.findById(1);if (category != null) {System.out.println("找到了！");} else {System.out.println("没有找到！");}System.out.println(category);}

5.FindAll方法测试

 @Testpublic void testFindAll(){List<Category> categories = new ArrayList<Category>();CategoryDao categoryDao =new CategoryDaoImpl();categories = categoryDao.findAll();if (categories != null) {System.out.println("找到了*.*");} else {System.out.println("没有找到了*.*");}System.out.println(categories);}

（九）对OrderDao中的方法进行测试
1.FindAll方法测试

    @Testpublic void testFindAll(){//创建订单数据访问对象OrderDao orderDao=new OrderDaoImpl();//获取全部订单列表List<Order> orders = orderDao.findAll();//判断是否有订单if (orders.size()>0){for (Order order:orders){System.out.println(order);}}else {System.out.println("木有订单");}}

2.insert方法测试

  @Testpublic void testInsert(){Date date=new Date();OrderDao orderDao=new OrderDaoImpl();Order order=new Order();order.setId(1);order.setUsername("张三丰");order.setTelephone("10086");order.setDeliveryAddress("信工院");order.setTotalPrice(2000.0);order.setOrderTime(date);orderDao.insert(order);int count = orderDao.update(order);if (count>0){System.out.println("插入成功");}else {System.out.println("插入失败");}}

3.Update方法测试

 @Testpublic void testUpdate(){Date date=new Date();OrderDao orderDao=new OrderDaoImpl();Order order=new Order();int id=1;Order count = orderDao.findById(id);order=count;order.setUsername("张三");order.setTelephone("10010");order.setTotalPrice(3000);order.setOrderTime(date);order.setDeliveryAddress("2018级计应2班");int counts = orderDao.update(order);if (counts>0){System.out.println("更新成功");}else {System.out.println("更新失败");}}

4.delete方法测试

  @Testpublic void testDelete(){OrderDao orderDao=new OrderDaoImpl();//定义一个要删除的idint id=3;int count=orderDao.deleteById(id);if (count>0){System.out.println("删除成功");}else {System.out.println("删除失败");}}

5.findById方法测试

  @Testpublic void testFindById(){OrderDao orderDao=new OrderDaoImpl();int id=1;Order count = orderDao.findById(id);if (count!=null){System.out.println(count);}else {System.out.println("没有订单信息");}}

6.findlast方法测试

  @Testpublic void testFindLast(){OrderDao orderDao=new OrderDaoImpl();Order count = orderDao.findLast();if (count!=null){System.out.println(count);}else {System.out.println("没有订单信息");}}

（十）Product类中的方法测试：
1.FindByCategoryId方法测试

 @Testpublic void testFindByCategoryId(){//创建对象ProductDao productDao=new ProductDaoImpl();//定义商品类别编号int categoryId=1;//创建商品类别数据访问对象CategoryDao categoryDao=new CategoryDaoImpl();//判断类别是否存在if (categoryDao.findById(categoryId)!=null){//获取类别名称String categoryName=categoryDao.findById(categoryId).getName();//获取该类别商品List<Product> products = productDao.findByCategoryId(categoryId);//判断商品是否存在if (!products.isEmpty()){// 遍历商品列表for (Product product:products){System.out.println(product);}}else {System.out.println("["+categoryName+"]没有商品");}}else {System.out.println("类别编号["+categoryId+"]不存在");}}

2.Insert方法测试

  @Testpublic void testInsert(){Date date=new Date();ProductDao productDao=new ProductDaoImpl();Product product=new Product();product.setName("金刚钻");product.setPrice(200);product.setAddTime(date);product.setCategoryId(1);productDao.insert(product);productDao.update(product);System.out.println("插入成功");}

3.deleteById方法测试

    @Testpublic void testDeleteById(){ProductDao productDao=new ProductDaoImpl();//定义要删除的标识符名称int id=1;int count=productDao.deleteById(1);if (count>0){System.out.println("删除成功");}else {System.out.println("删除失败");}}

4.Update方法测试

 @Testpublic void testUpdate(){Date date=new Date();ProductDao productDao=new ProductDaoImpl();Product product=productDao.findById(2);product.setName("华硕电脑");product.setAddTime(date);product.setPrice(5000);product.setCategoryId(1);int count = productDao.update(product);if (count>0){System.out.println("更新成功，共"+count+"条数据。");}}

5.findByID方法测试

  @Testpublic void testFindById(){ProductDao productDao=new ProductDaoImpl();int id=2;Product count = productDao.findById(id);if (count!=null){System.out.println(count);}else {System.out.println("没有商品信息");}}

6.findAll方法

  @Testpublic void testFindAll(){ProductDao productDao=new ProductDaoImpl();List<Product> count = productDao.findAll();if (count.isEmpty()){System.out.println("木有商品信息");}else {for (Product count1:count){System.out.println(count1);}}}

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