Springboot接收参数

@RestController
public class ControllerTest {


    //在这里读取配置文件
    @Autowired
    private Testconfig testconfig;
    //访问路径：http://localhost:8080/hello/5
    @GetMapping(value = "/hello/{id}")
    public String hello(@PathVariable("id") Integer id){
        return "ID:" + id;
    }
}

@RestController
public class ControllerTest {


    //在这里读取配置文件
    @Autowired
    private Testconfig testconfig;
    //访问路径：http://localhost:8080/hello?id=1551
    @GetMapping(value = "/hello")
    public String hello(@RequestParam("id") Integer id){
        return "ID:" + id;
    }
}

    //访问路径：http://localhost:8080/hello?id=1551
    @GetMapping(value = "/hello")
    public String hello(@RequestParam(value = "id", required = false, defaultValue = "5") Integer id){
        return "ID:" + id;
    }