客户发布多部分表单数据

Question

我正在尝试创建一个用于测试控制器的客户端

控制器

@Secured(SecurityRule.IS_AUTHENTICATED)
@Controller
class InjuryController(private val userService: UserService, private val injuryService: InjuryService) {
...
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Post("/injuries/{id}/images")
fun postImage(id: Long, file: CompletedFileUpload, principal: Principal): HttpResponse<*>? {
...
return HttpResponse.ok(imageReference)
}
...
}

客户

@Client("/")
interface InjuryClient {
@Post("/injuries/{id}/images", produces = [MULTIPART_FORM_DATA])
fun postImage(id: Long, body: MultipartBody, @Header authorization: String): ImageReference
}

测试内容

@Test
fun `Post an image an injury`() {
// Given
val description = "description"
val occurredAt = LocalDateTime.now()
val id = createInjury(description, occurredAt).id
val toWrite = "test file"
val file = File.createTempFile("data", ".txt")
FileWriter(file).apply {
write(toWrite)
close()
}
val requestBody = MultipartBody.builder()
.addPart("data",
file.name,
MediaType.TEXT_PLAIN_TYPE,
file
).build()
// When
val response = injuryClient.postImage(id, requestBody, authorization)
// Then
assertEquals("$id:${file.name}", response.key)
}

错误

The type java.util.LinkedHashMap is not a supported type for a multipart request body
io.micronaut.http.multipart.MultipartException: The type java.util.LinkedHashMap is not a supported type for a multipart request body
at io.micronaut.http.client.DefaultHttpClient.buildMultipartRequest(DefaultHttpClient.java:2063)
at io.micronaut.http.client.DefaultHttpClient.buildNettyRequest(DefaultHttpClient.java:1480)
at io.micronaut.http.client.DefaultHttpClient.sendRequestThroughChannel(DefaultHttpClient.java:1599)
at io.micronaut.http.client.DefaultHttpClient.lambda$null$27(DefaultHttpClient.java:1035)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:577)
at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:570)
at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:549)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:490)
at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615)
at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:604)
at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:104)
at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:84)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:300)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:335)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:688)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:635)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:552)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:514)
at io.netty.util.concurrent.SingleThreadEventExecutor$6.run(SingleThreadEventExecutor.java:1044)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:834)

关于如何摆脱该错误的任何线索？

Answer 1

客户端假定方法参数是主体的成员，而不是表示整个主体的每个参数。您可以通过在客户端中使用 body 参数批注来实现所需的行为@Body