Spring MVC是一个富 “model view controller”web 框架.让你可以创建`@Controller` 或`@RestController`beans处理HTTP 请求.使用`@RequestMapping`注解把方法映射到http请求. 下面是一个典型的`@RestController`,产生json数据 ~~~java @RestController @RequestMapping(value="/users") public class MyRestController { @RequestMapping(value="/{user}", method=RequestMethod.GET) public User getUser(@PathVariable Long user) { // ... } @RequestMapping(value="/{user}/customers", method=RequestMethod.GET) List<Customer> getUserCustomers(@PathVariable Long user) { // ... } @RequestMapping(value="/{user}", method=RequestMethod.DELETE) public User deleteUser(@PathVariable Long user) { // ... } } ~~~