spring mvc中的@PathVariable是用來獲得請求url中的動態參數的，十分方便，復習下：

1. @Controller
2. public class TestController {
3. @RequestMapping(value="/user/{userId}/roles/{roleId}",method = RequestMethod.GET)
4. public String getLogin(@PathVariable("userId") String userId,
5. @PathVariable("roleId") String roleId){
6. System.out.println("User Id : " + userId);
7. System.out.println("Role Id : " + roleId);
8. return "hello";
9. }
10. @RequestMapping(value="/product/{productId}",method = RequestMethod.GET)
11. public String getProduct(@PathVariable("productId") String productId){
12. System.out.println("Product Id : " + productId);
13. return "hello";
14. }
15. @RequestMapping(value="/javabeat/{regexp1:[a-z-]+}",
16. method = RequestMethod.GET)
17. public String getRegExp(@PathVariable("regexp1") String regexp1){
18. System.out.println("URI Part 1 : " + regexp1);
19. return "hello";
20. }
21. }

spring mvc中的@PathVariable