从RestTemplate到WebClient（Spring Boot 2.0.0.m3)的问题

Question

从一个普通的MVC项目转移到一个被动的项目，并且正在使用Spring Boot（新版本2.0.0.M3)。

在这个特殊的prblem出现之前，我对整个库没有任何问题。

在使用WebClient时，我有一个不起作用的请求。它以前在RestTemplate中工作得很好：

rt.getMessageConverters().add(new MappingJackson2HttpMessageConverter());

HttpHeaders headers = new HttpHeaders();
headers.add("Content-Type", "application/json");
headers.add("Authorization", "Basic REDACTED");

HttpEntity<OtherApiRequest> entity = 
new HttpEntity<OtherApiRequest>(CrawlRequestBuilder.buildCrawlRequest(req), headers);

ResponseEntity<Void> response = rt.postForEntity("https://other_api/path", 
    entity, 
    Void.class);

System.out.println(response.getStatusCode());

client
  .post()
  .uri("https://other_api/path")
  .header("Authorization", "Basic REDACTED")
  .contentType(MediaType.APPLICATION_JSON)
  .body(Mono.just(req), OtherApiRequest.class)
  .exchange()
  .then(res -> System.out.println(res.getStatusCode()));

ObjectMapper mapper = new ObjectMapper();
String body = mapper.writeValueAsString(
client
  .post()
  .uri("https://other_api/path")
  .header("Authorization", "Basic REDACTED")
  .contentType(MediaType.APPLICATION_JSON)
  .body(body, String.class)
  .exchange()
  .then(res -> System.out.println(res.getStatusCode()));

@JsonNaming(PropertyNamingStrategy.SnakeCaseStrategy.class)
public class OtherApiRequest {
    private String app;
    private String urllist;
    private int maxDepth;
    private int maxUrls;

   public OtherApiRequest(String app, String urllist, int maxDepth, int maxUrls) {
        this.app = app;
        this.urllist = urllist;
        this.maxDepth = maxDepth;
        this.maxUrls = maxUrls;
    }

   public String getApp() {
        return app;
    }

   public String getUrllist() {
        return urllist;
    }

   public int getMaxDepth() {
        return maxDepth;
    }

   public int getMaxUrls() {
        return maxUrls;
    }

   public String toString() {
        return "OtherApiRequest: {" +
            "app: " + app + "," +
            "urllist: " + urllist + "," +
            "max_depth: " + maxDepth + "," +
            "max_urls: " + maxUrls +
            "}";
    }
}

Answer 1

编辑：

在这里看到更好的答案

用WebClient发送POST请求时缺少内容长度标头(SpringBoot 2.0.2.Release)

$ netcat -l 6500
PUT /value HTTP/1.1
user-agent: ReactorNetty/0.7.5.RELEASE
transfer-encoding: chunked
host: localhost:6500
accept-encoding: gzip
Content-Type: application/json

4
3.16
0