如何使用注释在SpringMVC中创建默认方法？

@Controller
@RequestMapping("/api")
public class MyController {

    @GetMapping("/hello")
    @ResponseBody
    public String hello() {
        return "Hello, SpringMVC!";
    }

    @PostMapping("/create")
    @ResponseBody
    public String create(@RequestBody MyObject myObject) {
        // 创建逻辑
        return "Created successfully!";
    }

    @PutMapping("/update/{id}")
    @ResponseBody
    public String update(@PathVariable("id") Long id, @RequestBody MyObject myObject) {
        // 更新逻辑
        return "Updated successfully!";
    }

    @DeleteMapping("/delete/{id}")
    @ResponseBody
    public String delete(@PathVariable("id") Long id) {
        // 删除逻辑
        return "Deleted successfully!";
    }
}