如何创建Spring Boot控制器

Question

连接：Keep-Alive

主机：webhook.site

内容类型：application/x-www-form-urlencoded

@RequestMapping(value = "/bills", method = RequestMethod.POST, headers = "Accept=application/x-www-form-urlencoded")
    @ResponseBody
    @Transactional
    public void createBill(UriComponentsBuilder uriComponentsBuilder, final HttpServletRequest request,
            final HttpServletResponse response) throws IOException {
}

Answer 1

这对我来说不是很清楚，但是如果您使用spring boot，您当然可以创建控制器、服务和存储库或DAO。实际上，您的控制器将调用您的服务女巫将调用存储库。

让我们假设您有一个调用API的客户端。

因此该调用看起来如下：

// Suppose that is a spring boot project

Class A {

@Autowired 
RestTemplate restTemplate;

public void create(){

    HttpHeaders headers = new HttpHeaders();
    headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
    headers.setContentType((MediaType.APPLICATION_JSON));
    headers.add("X-yourCustom-context", "yourCustom");

    UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(your_service_url)
                    .queryParam("params1", "value".queryParam("params2", value2));
    HttpEntity<?> entity = new HttpEntity<>(headers);

    restTemplate.exchange(builder.build().encode().toUri(), HttpMethod.POST, entity, null); // if you want to return an objectr you put it rather than the null

}

}

@RestController
public class YourController {
    @Autowired
    private YourService service;

    @Autowired
    private ObjectMapper objectMapper;


    @PostMapping(value = "/bills")
    //@ResponseBody if you do not return any think you can not use it
    // @CrossOrigin if you want to call your reste from an external project like javascript or angular
    //@Transactional you can put it on the top of your service methode
    public void createBill(@RequestParam(value = "params1", required = true) String params1, 
    @RequestParam(value = "params2", required = true) String params2,
    @RequestHeader(value = "X-yourCustom-context", required = true) String yourContxt) throws IOException {

    // You can then convert your x-context to an object that you have already by using objectMapper.readValue
    // Finaly you call you service to create the bill and you passe as params what you get fron the client 
}
}