Understand the key features of Spring MVC: Mastering these important concepts requires specific code examples
Spring MVC is a Java-based web application development framework that uses The Model-View-Controller (MVC) architectural pattern helps developers build flexible and scalable web applications. Understanding and mastering the key features of Spring MVC will enable us to develop and manage our web applications more efficiently. This article will introduce some important concepts of Spring MVC and deepen understanding through specific code examples.
@Controller @RequestMapping("/user") public class UserController { @Autowired private UserService userService; @GetMapping("/{id}") public String getUserById(@PathVariable("id") Long id, Model model) { User user = userService.getUserById(id); model.addAttribute("user", user); return "userDetails"; } // 其他请求处理方法... }
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/views/" /> <property name="suffix" value=".jsp" /> </bean>
public class User { private Long id; private String username; private String password; // 省略getter和setter方法... }
@Controller @RequestMapping("/user") public class UserController { @PostMapping("/add") public String addUser(@RequestParam("username") String username, @RequestParam("password") String password) { userService.addUser(username, password); return "redirect:/user/list"; } // 其他请求处理方法... }
<form action="/user/login" method="post"> <input type="text" name="username" placeholder="Username" /> <input type="password" name="password" placeholder="Password" /> <input type="submit" value="Login" /> </form>
@Controller @RequestMapping("/user") public class UserController { @PostMapping("/login") public String login(@ModelAttribute("user") User user) { // 验证用户身份,处理登录逻辑... return "redirect:/dashboard"; } // 其他请求处理方法... }
Through the above sample code, we can understand the use of some key features in Spring MVC and deepen its concepts. understanding. When we master these important concepts, we can become more proficient in using Spring MVC to develop and manage our web applications. I hope this article will help you understand and master Spring MVC.
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