第五章：Controller —— 办事窗口怎么接待市民

package com.example.cityhall.permit;

import jakarta.validation.Valid;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping("/api/permits")
public class PermitController {

  private final PermitService permitService;

  public PermitController(PermitService permitService) {
    this.permitService = permitService;
  }

  @PostMapping
  @ResponseStatus(HttpStatus.CREATED)
  public PermitResponse create(@Valid @RequestBody CreatePermitRequest request) {
    return permitService.create(request);
  }

  @GetMapping("/{id}")
  public PermitResponse getById(@PathVariable Long id) {
    return permitService.getById(id);
  }
}