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我正在尝试将 Micronaut-servlet API 用于现有的微服务。如果没有 servlet API，以下工作非常好

 @Test
  public void
  saved_movies_are_returned_in_my_list() {
    try (RxHttpClient client = embeddedServer.getApplicationContext()
        .createBean(RxHttpClient.class, embeddedServer.getURL())) {
      Movie movie = createMovie();
      Response<Movie> response = client.toBlocking().retrieve(
          HttpRequest.POST("/movies", movie).bearerAuth(idToken),
          Argument.of(Response.class, Movie.class));
      Response<List<Movie>> myMovies = client.toBlocking().retrieve(
          HttpRequest.GET("/movies").bearerAuth(idToken),
          Argument.of(Response.class, Argument.listOf(Movie.class)));
      assertThat(myMovies.data).contains(movie);
    }

  }

这是控制器

@Post("/")
  public Response<Movie> save(Movie movie) {
    return movieService.save(movie);
  }

并且该服务具有逻辑，如果电影<->用户映射已经存在，则不保存任何数据并返回现有映射

public Response<Movie> save(Movie movie) {
    Optional<Movie> byUserIdAndTmdbId = movieRepository
        .findByUserIdAndTmdbId(movie.getUserId(), movie.getTmdbId());
    Response<Movie> movieResponse = null;
    if (!byUserIdAndTmdbId.isPresent()) {
      movieResponse = new Response<>("Movie Saved Successfully",
          State.SUCCESS, movieRepository.save(movie));
      return movieResponse;
    } else {
      return new Response<>("Movie already in list",
          State.SUCCESS, byUserIdAndTmdbId.get());
    }
  }

存储库也很简单

@Repository
public interface MovieRepository extends CrudRepository<Movie,Long> {
  List<Movie> findByUserId(String userId);
  Optional<Movie> getByUserIdAndTmdbId(String userId, Long timdbId);
}

在我删除之前，所有这些都可以正常工作

implementation "io.micronaut:micronaut-http-server-netty"

并将其替换为 implementation("io.micronaut.servlet:micronaut-http-server-jetty:1.0.0.M1")

更改后出现以下异常

Failed to convert argument [Movie] for value [io.micronaut.core.convert.value.ConvertibleValuesMap@17bae1ca] due to: Cannot convert an iterable with more than 1 value to a non collection object
io.micronaut.http.client.exceptions.HttpClientResponseException: Failed to convert argument [Movie] for value [io.micronaut.core.convert.value.ConvertibleValuesMap@17bae1ca] due to: Cannot convert an iterable with more than 1 value to a non collection object
    at io.micronaut.http.client.DefaultHttpClient$10.channelRead0(DefaultHttpClient.java:1831)

如果我尝试保留这两个依赖项，那么我会得到 HTTPClient 注入的重复 bean 异常！

4

1 回答 1

1

@Body在控制器方法中添加注解：

public Response<Movie> save(@Body Movie movie)

默认实现（Netty 运行时）不需要注释，这就是它适用于 netty 的原因，但如果您使用 servlet 引擎/实现（jetty 或 tomcat 等），则需要注释。

见：https ://github.com/micronaut-projects/micronaut-servlet/issues/243

于 2021-09-21T09:21:14.160 回答