RestTemplate 与正文一起获取

如何使用休息模板来获取身体？

基于以下问题：通过 JSON 格式的 RestTemplate 进行 POST 请求 https://stackoverflow.com/questions/4075991/post-request-via-resttemplate-in-json，我尝试通过 HttpEntity 使用 body 进行 GET （只需检查是否可能），但是 接收失败：

缺少必需的请求正文

对于 HttpMethod.POST：本地主机:8080/测试/发布主体已正确添加，但对于 HttpMethod.GET本地主机：8080/测试/获取它没有被映射。 我的代码如下：

@RestController
@SpringBootApplication
public class DemoApplication {

  public static void main(String[] args) {
    SpringApplication.run(DemoApplication.class, args);
  }

  private final RestTemplate restTemplate = new RestTemplate();

  @GetMapping("/test/{api}")
  public SomeObject test(@PathVariable("api") String api) {
    String input = "{\"value\":\"ok\"}";

    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_JSON);
    HttpEntity<String> entity = new HttpEntity<>(input, headers);

    HttpMethod method = "get".equals(api) ? HttpMethod.GET : HttpMethod.POST;
    String url = "http://localhost:8080/" + api;
    return restTemplate.exchange(url, method, entity, SomeObject.class).getBody();
  }

  @GetMapping("/get")
  public SomeObject getTestApi(@RequestBody(required = false) SomeObject someObject) {
    return new SomeObject() {{ setValue(someObject != null ? "ok" : "error"); }};
  }

  @PostMapping("/post")
  public SomeObject postTestApi(@RequestBody(required = false) SomeObject someObject) {
    return new SomeObject() {{ setValue(someObject != null ? "ok" : "error"); }};
  }

  @Data
  public static class SomeObject {
    private String value;
  }

}

这是带有完整示例的存储库：https://gitlab.com/bartekwichowski/git-with-body https://gitlab.com/bartekwichowski/git-with-body

我想知道，代码有什么问题吗？ 还根据：带请求正文的 HTTP GET https://stackoverflow.com/questions/978061/http-get-with-request-bodyGET with body 是可能的，但这不是一个好的做法。

我发现这个不记得在哪里了。这不是一个好的做法，但如果在您的环境中您没有其他机会：

private static final class HttpComponentsClientHttpRequestWithBodyFactory extends HttpComponentsClientHttpRequestFactory {
    @Override
    protected HttpUriRequest createHttpUriRequest(HttpMethod httpMethod, URI uri) {
        if (httpMethod == HttpMethod.GET) {
            return new HttpGetRequestWithEntity(uri);
        }
        return super.createHttpUriRequest(httpMethod, uri);
    }
}

private static final class HttpGetRequestWithEntity extends HttpEntityEnclosingRequestBase {
    public HttpGetRequestWithEntity(final URI uri) {
        super.setURI(uri);
    }

    @Override
    public String getMethod() {
        return HttpMethod.GET.name();
    }
}

当你得到你的restTemplate对象时

restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestWithBodyFactory());