好的，以下是一个简易版的
JavaWeb电影院售票系统的课程设计代码示例。这个示例包括基本的用户界面、数据库连接和简单的功能实现。
### 1
. 数据库设计
首先，我们需要设计一个简单的数据库来存储电影信息、用户信息和订单信息。假设我们使用MySQL数据库。
```sql
CREATE DATABASE cinema;
USE cinema;
CREATE TABLE movies (
id INT AUTO_INCREMENT PRIMARY KEY,
title VARCHAR(255) NOT NULL,
description TEXT,
duration INT,
price DECIMAL(5, 2)
);
CREATE TABLE users (
id INT AUTO_INCREMENT PRIMARY KEY,
username VARCHAR(255) NOT NULL,
password VARCHAR(255) NOT NULL
);
CREATE TABLE orders (
id INT AUTO_INCREMENT PRIMARY KEY,
user_id INT,
movie_id INT,
quantity INT,
total_price DECIMAL(5, 2),
FOREIGN KEY (user_id) REFERENCES users(id),
FOREIGN KEY (movie_id) REFERENCES movies(id)
);
```
### 2
. Java Web 应用程序
接下来，我们创建一个简单的
Java Web应用程序，使用
JSP和Servlet来实现基本的功能。
#### 2
.1
. 项目结构
```
src/
|
- controller/
|
- MovieController
.java
|
- UserController
.java
|
- OrderController
.java
|
- model/
|
- Movie
.java
|
- User
.java
|
- Order
.java
|
- dao/
|
- MovieDAO
.java
|
- UserDAO
.java
|
- OrderDAO
.java
WebContent/
|
- WEB-INF/
|
- web.xml
|
- index
.jsp
|
- login
.jsp
|
- movies
.jsp
|
- order
.jsp
```
#### 2
.2
. 模型类
```
java
// src/model/Movie
.java
public class Movie {
private int id;
private String title;
private String description;
private int duration;
private double price;
// Getters and Setters
}
// src/model/User
.java
public class User {
private int id;
private String username;
private String password;
// Getters and Setters
}
// src/model/Order
.java
public class Order {
private int id;
private int userId;
private int movieId;
private int quantity;
private double totalPrice;
// Getters and Setters
}
```
#### 2
.3
. DAO 类
```
java
// src/dao/MovieDAO
.java
import
java.sql
.*;
import
java.util
.Array
List;
import
java.util
.List;
public class MovieDAO {
public
List<Movie> getAllMovies() {
List<Movie> movies = new Array
List<>();
try (Connection conn = DriverManager
.getConnection("jdbc:mysql://localhost:3306/cinema", "root", "password");
Statement stmt = conn
.createStatement();
ResultSet rs = stmt
.executeQuery("SELECT * FROM movies")) {
while (rs
.next()) {
Movie movie = new Movie();
movie
.setId(rs
.getInt("id"));
movie
.setTitle(rs
.getString("title"));
movie
.setDescription(rs
.getString("description"));
movie
.setDuration(rs
.getInt("duration"));
movie
.setPrice(rs
.getDouble("price"));
movies
.add(movie);
}
} catch (SQLException e) {
e
.printStackTrace();
}
return movies;
}
// Other CRUD operations
}
// src/dao/UserDAO
.java
public class UserDAO {
public User getUser(String username, String password) {
User user = null;
try (Connection conn = DriverManager
.getConnection("jdbc:mysql://localhost:3306/cinema", "root", "password");
PreparedStatement pstmt = conn
.prepareStatement("SELECT * FROM users WHERE username = ? AND password = ?")) {
pstmt
.setString(1, username);
pstmt
.setString(2, password);
try (ResultSet rs = pstmt
.executeQuery()) {
if (rs
.next()) {
user = new User();
user
.setId(rs
.getInt("id"));
user
.setUsername(rs
.getString("username"));
user
.setPassword(rs
.getString("password"));
}
}
} catch (SQLException e) {
e
.printStackTrace();
}
return user;
}
// Other CRUD operations
}
// src/dao/OrderDAO
.java
public class OrderDAO {
public void createOrder(Order order) {
try (Connection conn = DriverManager
.getConnection("jdbc:mysql://localhost:3306/cinema", "root", "password");
PreparedStatement pstmt = conn
.prepareStatement("INSERT INTO orders (user_id, movie_id, quantity, total_price) VALUES (?, ?, ?, ?)")) {
pstmt
.setInt(1, order
.getUserId());
pstmt
.setInt(2, order
.getMovieId());
pstmt
.setInt(3, order
.getQuantity());
pstmt
.setDouble(4, order
.getTotalPrice());
pstmt
.executeUpdate();
} catch (SQLException e) {
e
.printStackTrace();
}
}
// Other CRUD operations
}
```
#### 2
.4
. 控制器类
```
java
// src/controller/MovieController
.java
import
java.io
.IOException;
import
javax
.servlet
.ServletException;
import
javax
.servlet
.annotation
.WebServlet;
import
javax
.servlet
.http
.HttpServlet;
import
javax
.servlet
.http
.HttpServletRequest;
import
javax
.servlet
.http
.HttpServletResponse;
import src
.dao
.MovieDAO;
import src
.model
.Movie;
@
WebServlet("/movies")
public class MovieController extends HttpServlet {
private MovieDAO movieDAO;
@Override
public void init() {
movieDAO = new MovieDAO();
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
List<Movie> movies = movieDAO
.getAllMovies();
request
.setAttribute("movies", movies);
request
.getRequestDispatcher("movies
.jsp")
.forward(request, response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
// src/controller/UserController
.java
// src/controller/OrderController
.java
// Similar to MovieController
```
#### 2
.5
. JSP 页面
```
jsp
<!
-- WebContent/index
.jsp -->
<!DOCTYPE html>
<html>
<head>
<title>Cinema
Ticket Booking</title>
</head>
<body>
<h1>Welcome to Cinema
Ticket Booking</h1>
<a href="login
.jsp">Login</a>
<a href="movies
.jsp">View Movies</a>
</body>
</html>
<!
-- WebContent/login
.jsp -->
<!
-- Similar to index
.jsp -->
<!
-- WebContent/movies
.jsp -->
<!DOCTYPE html>
<html>
<head>
<title>Movies</title>
</head>
<body>
<h1>Movies</h1>
<table>
<tr>
<th>Title</th>
<th>Description</th>
<th>Duration</th>
<th>Price</th>
<th>Action</th>
</tr>
<c:forEach var="movie" items="${movies}">
<tr>
<td>${movie
.title}</td>
<td>${movie
.description}</td>
<td>${movie
.duration}</td>
<td>${movie
.price}</td>
<td><a href="order
.jsp?id=${movie
.id}">Order</a></td>
</tr>
</c:forEach>
</table>
</body>
</html>
<!
-- WebContent/order
.jsp -->
<!
-- Similar to movies
.jsp -->
```
### 3
. 配置文件
```xml
<!
-- WebContent/
WEB-INF/
web.xml
-->
<
web-app xmlns="http://xmlns
.jcp
.org/xml/ns/
javaee" xmlns:xsi="http://www
.w3
.org/2001/XMLSchema
-instance" xsi:schemaLocation="http://xmlns
.jcp
.org/xml/ns/
javaee http://xmlns
.jcp
.org/xml/ns/
javaee/
web-app_3_1
.xsd" version="3
.1">
<servlet>
<servlet
-name>MovieController</servlet
-name>
<servlet
-class>src
.controller
.MovieController</servlet
-class>
</servlet>
<servlet
-mapping>
<servlet
-name>MovieController</servlet
-name>
<url
-pattern>/movies</url
-pattern>
</servlet
-mapping>
<!
-- Other servlet mappings
-->
</
web-app>
```
### 4
. 依赖配置
在`pom
.xml`中添加以下依赖：
```xml
<dependencies>
<dependency>
<groupId>
javax
.servlet</groupId>
<artifactId>
javax
.servlet
-api</artifactId>
<version>4
.0
.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>
javax
.servlet
.jsp</groupId>
<artifactId>
javax
.servlet
.jsp-api</artifactId>
<version>2
.3
.3</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql
-connector
-java</artifactId>
<version>8
.0
.23</version>
</dependency>
</dependencies>
```
本文探讨了一个使用Spring 3 Web MVC和Tomcat 7开发的小型Web应用程序中遇到的问题。当请求特定控制器路径时，部分页面返回404错误。作者尝试了多种配置调整来解决此问题。
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