java.lang.AssertionError : Content type not set

Question

我正在尝试测试 POST，无论我做什么，我都会收到 java.lang.AssertionError: Content type not set

我的 Controller :

@RestController
@RequestMapping("/artistas")

public class ArtistaEndpoint {

    private final ArtistaService artistaService;
    private final ArtistaMapper artistaMapper;
    private final AlbumService albumService;

    @CrossOrigin(origins = "http://localhost:8080")
    @PostMapping
    public ResponseEntity<Void> post(@Valid @RequestBody Artista artista) { 

        artista = artistaService.save(artista);

        ArtistaDto artistaDto = artistaMapper.toDtoCompleto(artista);
        URI uri = ServletUriComponentsBuilder.fromCurrentRequest().path("/{id}").buildAndExpand(artistaDto.getId()).toUri();

        if(!artista.getAlbuns().isEmpty()) {
            Set<Album> albuns = artista.getAlbuns();
            for(Album album: albuns) {
                album.setArtista(artista);
                albumService.save(album);
            }
        }

        return ResponseEntity.created(uri).build();
    }

}

和我的测试:

    @Test
public void salvarArtistaSemAlbum() throws Exception {

    Artista adicionado = new Artista();
    adicionado.setId(1L);
    adicionado.setNome("Banda Eva");
    adicionado.setDescricao("Viva o carnaval");

    when(artistaService.save(Mockito.any(Artista.class))).thenReturn(adicionado);

    mockMvc.perform(MockMvcRequestBuilders.post("/artistas")
            .contentType(MediaType.APPLICATION_JSON_UTF8_VALUE)
            .accept(MediaType.APPLICATION_JSON_UTF8_VALUE)and 
            .content(TestUtil.asJsonString(adicionado)))

            .andExpect(status().isCreated())
            .andExpect(content().contentType(MediaType.APPLICATION_JSON_UTF8_VALUE))

            .andExpect(jsonPath("$.id", is(1)))
            .andExpect(jsonPath("$.nome", is("Banda Eva")))
            .andExpect(jsonPath("$.descricao", is("Viva o carnaval")));

    verify(artistaService, times(1)).save(Mockito.any(Artista.class));
    verifyNoMoreInteractions(artistaService);
    assertNull(adicionado.getId());
    assertThat(adicionado.getNome(), is("Banda Eva"));
    assertThat(adicionado.getDescricao(), is("Viva o carnaval"));

}

httpservlet 的响应:

    MockHttpServletResponse:
           Status = 201
    Error message = null
          Headers = {Location=[http://localhost/artistas/1]}
     Content type = null
             Body = 
    Forwarded URL = null
   Redirected URL = http://localhost/artistas/1
      Cookies = []

我已经做了一个问题，但错误是另一个，我可以解决。我不明白为什么它返回 201 Created 并且没有内容正文。闻起来像一些我没有的注释，但我已经审阅过但没有成功。对我的英语很抱歉，感谢您的帮助。

编辑-

我以为问题已经解决了，但我错了

Answer 1

您可以直接在 PostMapping 注释中添加内容类型:

@PostMapping(produces = MediaType.APPLICATION_JSON_UTF8_VALUE)