@ PathVariable and mvc @ pathvariable in spring mvc

@ PathVariable and mvc @ pathvariable in spring mvc

@ PathVariable in spring mvc is used to obtain dynamic parameters in the request url, which is very convenient. Review:

Java code

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. }