ssm框架实现登录功能及代码
时间: 2023-05-28 14:07:18 浏览: 246
由于SSM框架在实现登录功能上没有特殊的方式,因此以下为一般登录功能的实现代码:
1. login.jsp(登录页面)
```
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登录页面</title>
</head>
<body>
<form action="login" method="post">
<label>用户名:<input type="text" name="username"></label><br>
<label>密 码:<input type="password" name="password"></label><br>
<input type="submit" value="登录">
</form>
</body>
</html>
```
2. LoginController.java(处理登录请求)
```
@Controller
public class LoginController {
@Autowired
private UserService userService;
@RequestMapping("/login")
public String login(String username, String password, HttpSession session) {
User user = userService.login(username, password);
if(user != null) {
session.setAttribute("user", user);
return "redirect:/index";
} else {
return "redirect:/login.jsp";
}
}
}
```
3. UserService.java(处理业务逻辑)
```
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserDao userDao;
@Override
public User login(String username, String password) {
User user = userDao.getUserByUsername(username);
if(user != null && user.getPassword().equals(password)) {
return user;
} else {
return null;
}
}
}
```
4. UserDao.java(操作数据库)
```
@Repository
public interface UserDao {
public User getUserByUsername(String username);
}
```
以上代码实现了基本的登录功能,具体实现方式可能会因项目需求而有所不同。