java项目之弹幕视频网站（ssm+mysql+jsp）

**Java项目之弹幕视频网站 (SSM + MySQL + JSP)****项目介绍**

本项目是一个简单的弹幕视频网站，使用 Java 的 SSM 框架（Spring + Spring MVC + MyBatis）与 MySQL 数据库，以及 JSP 作为前端视图。该项目实现了用户登录、注册、视频上传、弹幕评论等功能。

**技术栈**

* Java8* Spring4.3.14* Spring MVC4.3.14* MyBatis3.5.9* MySQL5.7* JSP**项目结构**

弹幕视频网站|—— src| |—— main| | |—— java| | | |—— com| | | | |—— example| | | | | |—— danmu (项目源代码)
| | | | | |—— entity (实体类)
| | | | | |—— service (业务逻辑层)
| | | | | |—— dao (数据访问层)
| | | | | |—— controller (控制器)
| | | | | |—— utils (工具类)
| | | | | |—— config (配置类)
| | | | | |—— filter (过滤器)
| | | | | |—— interceptor (拦截器)
| | | | | |—— webapp| | | | | | |—— WEB-INF| | | | | | | |—— web.xml| | | | | | |—— index.jsp| | | | | | |—— login.jsp| | | | | | |—— register.jsp| | | | | | |—— video.jsp| | | | | | |—— danmu.jsp| | | | | | |—— upload.jsp| | | | | |—— pom.xml (Maven配置文件)
| | | | | |—— README.md| | | | |—— .gitignore| | | | |—— LICENSE.txt| | | |—— target| | | |—— src/main/resources| | | |—— src/test/java| | | |—— src/test/resources| |—— test| | |—— java| | | |—— com| | | | |—— example| | | | | |—— danmu (测试源代码)
| | | | | |—— entity (实体类)
| | | | | |—— service (业务逻辑层)
| | | | | |—— dao (数据访问层)
| | | | | |—— controller (控制器)
| | | | | |—— utils (工具类)
| | | | | |—— config (配置类)
| | | | | |—— filter (过滤器)
| | | | | |—— interceptor (拦截器)
| | | | | |—— webapp| | | | | | |—— WEB-INF| | | | | | | |—— web.xml| | | | | | |—— index.jsp| | | | | | |—— login.jsp| | | | | | |—— register.jsp| | | | | | |—— video.jsp| | | | | | |—— danmu.jsp| | | | | | |—— upload.jsp| | | | | |—— pom.xml (Maven配置文件)
| | | | | |—— README.md| | | | |—— .gitignore| | | | |—— LICENSE.txt

java// User.javapublic class User {
 private int id;
 private String username;
 private String password;

 public User() {}

 public User(int id, String username, String password) {
 this.id = id;
 this.username = username;
 this.password = password;
 }

 // getter和setter方法}

// Video.javapublic class Video {
 private int id;
 private String title;
 private String url;

 public Video() {}

 public Video(int id, String title, String url) {
 this.id = id;
 this.title = title;
 this.url = url;
 }

 // getter和setter方法}

// Danmu.javapublic class Danmu {
 private int id;
 private String content;
 private int videoId;

 public Danmu() {}

 public Danmu(int id, String content, int videoId) {
 this.id = id;
 this.content = content;
 this.videoId = videoId;
 }

 // getter和setter方法}

java// UserService.javapublic class UserService {
 public boolean login(String username, String password) {
 // 与数据库交互，检查用户名和密码是否正确 return true; // 或 false }

 public boolean register(User user) {
 // 与数据库交互，注册新用户 return true; // 或 false }
}

// VideoService.javapublic class VideoService {
 public List

java// UserMapper.javapublic interface UserMapper {
 int login(String username, String password);

 int register(User user);
}

// VideoMapper.javapublic interface VideoMapper {
 List

java// UserController.java@RestController@RequestMapping("/user")
public class UserController {
 @Autowired private UserService userService;

 @PostMapping("/login")
 public boolean login(@RequestBody User user) {
 return userService.login(user.getUsername(), user.getPassword());
 }

 @PostMapping("/register")
 public boolean register(@RequestBody User user) {
 return userService.register(user);
 }
}

// VideoController.java@RestController@RequestMapping("/video")
public class VideoController {
 @Autowired private VideoService videoService;

 @GetMapping("/")
 public List

java// LoginFilter.javapublic class LoginFilter implements Filter {
 @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
 throws IOException, ServletException {
 // 检查用户是否登录，如果未登录，则跳转到登录页面 if (!isLogin(request)) {
 RequestDispatcher dispatcher = request.getRequestDispatcher("/login");
 dispatcher.forward(request, response);
 return;
 }
 chain.doFilter(request, response);
 }

 private boolean isLogin(ServletRequest request) {
 // 与数据库交互，检查