1.REST简介
行为动作
通常模块名使用复数,也就是加s
2.RESTful入门
@Controller
public class UserController {@RequestMapping(value = "/users", method = RequestMethod.POST)public String save() {System.out.println("user save");return "save";}/*** @PathVariable:表示路径中对应的占位符* @param id* @return*/@RequestMapping(value = "/users/{id}", method = RequestMethod.DELETE)public String delete(@PathVariable Integer id){System.out.println("delete ..." + id);return "delete";}/*** @RequestBody:接收前端传递给后端的json字符串* @param user* @return*/@RequestMapping(value = "/users",method = RequestMethod.PUT)public String update(@RequestBody User user){System.out.println(user);return "put";}
}
1.步骤:
2.RequestMapping:映射
3.@PathVariable:路径占位符
4.@RequesBody:接收前端传递给后端的json字符串
5.@RequestBody,@RequestVariable,@RequestParam区别
3.REST快速开发
@RequestMapping("/books")
@RestController//RequestBody+Controller
public class BookController {@PostMapping("/save")public String save() {System.out.println("user save");return "save";}@DeleteMapping("/delete")public String delete(@PathVariable Integer id){System.out.println("delete ..." + id);return "delete";}@PutMapping("/update")public String update(@RequestBody User user){System.out.println(user);return "put";}}