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[英]'Consumes' defaults to 'application/octet-stream' on Spring Boot RequestMapping, null when set
[英]spring boot multipartFile with application/octet-stream throws exception
我想使用Spring Boot構建一個簡單的Rest api,該api接受任何給定的文件,然后對其執行一些操作。 我瀏覽了multipartFile https://spring.io/guides/gs/uploading-files/上的spring示例,並決定采用相同的方法。 通過我的rest api上傳的文件將具有一些特定的擴展名。 因此,我將內容類型指定為application / octet-stream。 當我嘗試以相同的方式運行單元測試用例時,總是會遇到以下例外:
nested exception is org.springframework.web.multipart.MultipartException: The current request is not a multipart request
如果內容類型為text / plain或requestMapping中沒有“ consumes”參數,則不會出現此異常。
我的控制器代碼如下:
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.multipart.MultipartFile;
@Controller
@RequestMapping("/v1/sample")
public class SampleController {
private static Logger log = LoggerFactory.getLogger(SampleController.class);
@RequestMapping(path = "/{id}/upload",
consumes = {MediaType.APPLICATION_OCTET_STREAM_VALUE},
method = RequestMethod.POST)
public ResponseEntity<String> uploadfile(@PathVariable String id,
@RequestParam("file") MultipartFile upgradeFile) {
log.info("Obtained a upload request for the id {}",id );
return new ResponseEntity<String>("file upload has been accepted.",
HttpStatus.ACCEPTED);
}
}
我的單元測試片段如下:
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.fileUpload;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import static org.springframework.test.web.servlet.setup.MockMvcBuilders.webAppContextSetup;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.http.MediaType;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import com.stellapps.devicemanager.fota.Application;
@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@SpringApplicationConfiguration(classes = Application.class)
@EnableWebMvc
public class ControllerTest {
@Autowired
private WebApplicationContext webApplicationContext;
private MockMvc mockMvc;
@Before
public void mockMvcBuilder() {
this.mockMvc = webAppContextSetup(webApplicationContext).build();
}
@Test
public void test_ValidPayload() {
String uri = "/v1/sample/1234/upload";
Path path = Paths.get("src/test/resources/someFile");
try {
byte[] bytes = Files.readAllBytes(path);
MockMultipartFile multipartFile =
new MockMultipartFile("file", "someFile.diff", "application/octet-stream", bytes);
mockMvc.perform(fileUpload(uri).file(multipartFile).contentType(MediaType.APPLICATION_OCTET_STREAM_VALUE))
.andExpect(status().isAccepted());
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
如果我使用text / plain作為內容類型,並且給出普通的文本文件,則可以正常進行。 如果我將內容類型添加為application / octet-stream,則會引發以下異常
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.springframework.web.multipart.MultipartException: The current request is not a multipart request
at org.springframework.web.servlet.mvc.method.annotation.RequestPartMethodArgumentResolver.assertIsMultipartRequest(RequestPartMethodArgumentResolver.java:204)
at org.springframework.web.servlet.mvc.method.annotation.RequestPartMethodArgumentResolver.resolveArgument(RequestPartMethodArgumentResolver.java:129)
at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:99)
at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:161)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:128)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:817)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:731)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:968)
如何使我的請求接受應用程序/八位字節流,以及應該對測試用例進行哪些更改以確保其成功。
更新:
刪除消耗標頭並通過在MockPartFile中未指定內容類型是上載文件的方法之一。 我想默認情況下控制器將其作為application / octet-stream
更新:
感謝您的答復。 我使用的是早期版本的spring(1.3.1),經過回答后,我更新了spring版本和測試用例以使其匹配,然后它開始工作。
請嘗試以下步驟
MockMultipartFile multipartFile = new MockMultipartFile("file","somename","multipart/form-data", fileinputstream);
更改為MockMvc:
mockMvc.perform(MockMvcRequestBuilders.fileUpload("/v1/sample/1234/payload") .file(multipartFile) .andExpect(status().isOk());
如需幫助,請檢查使用Spring mvc和MockMVC上傳文件
編輯:
我已經嘗試了一個適合您的方案的示例spring-boot-rest應用。 似乎application / octet-stream沒問題。 請檢查我的倉庫https://github.com/satya-j/boot-file-manager
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