在Spring Boot中放置调用REST API和修改实体的方法的位置

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;

@Service
public class MyService {

    @Autowired
    private RestTemplate restTemplate;

    @Autowired
    private MyRepository myRepository;

    public void callExternalApi() {
        String url = "https://api.example.com/data";
        String result = restTemplate.getForObject(url, String.class);
        // 处理结果
    }

    public void updateEntity(Long id, MyEntity entity) {
        MyEntity existingEntity = myRepository.findById(id).orElseThrow(() -> new EntityNotFoundException("Entity not found"));
        existingEntity.setField(entity.getField());
        myRepository.save(existingEntity);
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

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

    @Autowired
    private MyService myService;

    @GetMapping("/call-api")
    public void callApi() {
        myService.callExternalApi();
    }

    @PutMapping("/update-entity/{id}")
    public void updateEntity(@PathVariable Long id, @RequestBody MyEntity entity) {
        myService.updateEntity(id, entity);
    }
}

import org.springframework.data.jpa.repository.JpaRepository;

public interface MyRepository extends JpaRepository<MyEntity, Long> {
}