显然我没有正确使用这个测试装置。 我的 servlet 在 tomcat 中工作得很好，但是当我尝试使用这个模拟时，找不到多部分边界。 “请求被拒绝，因为未找到多部分边界”。
有一个答案here展示了如何使用文本文件来使用它，但是该答案显式设置了边界字符串并将文件嵌入为测试。 我认为我不需要手动使用像 mockrequest.addFile(...)
这样的方法我在这里没有设置什么或者我怎么做错了？
@org.testng.annotations.Test
public void testDoPost() throws Exception
{
MockMultipartFile file = new MockMultipartFile("test.zip", "test.zip", "application/zip", MyServletTest.class.getResourceAsStream("/test.zip"));
MockMultipartHttpServletRequest mockRequest = new MockMultipartHttpServletRequest();
mockRequest.addFile(file);
mockRequest.set
mockRequest.setMethod("POST");
mockRequest.setParameter("variant", "php");
mockRequest.setParameter("os", "mac");
mockRequest.setParameter("version", "3.4");
MockHttpServletResponse response = new MockHttpServletResponse();
new MyServletTest().doPost(mockRequest, response);
// BOOM !
}
这是例外情况
Caused by: blablah: the request was rejected because no multipart boundary was found
你需要设定边界。
这里有关于什么是边界的很好的解释https://stackoverflow.com/a/10932533/2762092
要解决您的问题，请尝试此代码。
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import org.apache.commons.lang.ArrayUtils;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.mock.web.MockMultipartHttpServletRequest;
public class FileUploadTest {
public void testDoPost() throws IOException {
Path path = Paths.get("c:\\temp\\test.zip");
byte[] data = Files.readAllBytes(path);
MockMultipartFile file = new MockMultipartFile("test.zip", "test.zip",
"application/zip", data);
MockMultipartHttpServletRequest mockRequest = new MockMultipartHttpServletRequest();
String boundary = "q1w2e3r4t5y6u7i8o9";
mockRequest.setContentType("multipart/form-data; boundary="+boundary);
mockRequest.setContent(createFileContent(data,boundary,"application/zip","test.zip"));
mockRequest.addFile(file);
mockRequest.setMethod("POST");
mockRequest.setParameter("variant", "php");
mockRequest.setParameter("os", "mac");
mockRequest.setParameter("version", "3.4");
MockHttpServletResponse response = new MockHttpServletResponse();
new FileUpload().doPost(mockRequest, response);
}
public byte[] createFileContent(byte[] data, String boundary, String contentType, String fileName){
String start = "--" + boundary + "\r\n Content-Disposition: form-data; name=\"file\"; filename=\""+fileName+"\"\r\n"
+ "Content-type: "+contentType+"\r\n\r\n";;
String end = "\r\n--" + boundary + "--"; // correction suggested @butfly
return ArrayUtils.addAll(start.getBytes(),ArrayUtils.addAll(data,end.getBytes()));
}
}
投票给塞缪尔。尽管花了一天的时间试图让它发挥作用。问题出在：
String end = "--" + boundary + "--";
应该是：
String end = "\r\n--" + boundary + "--";
塞缪尔的好答案，但有一个错误：
String end = "\r\n"+ boundary + "--";
应该是：
String end = "--"+ boundary + "--";
非常感谢他的工作。
MultipartEntityBuilderHttpEntity httpEntity = MultipartEntityBuilder.create()
.addTextBody("text-form-field", "Just a line of text.")
.addTextBody("object-form-field", objectMapper.writeValueAsString(workerMetrics), ContentType.APPLICATION_JSON)
.addBinaryBody("binary-format", "This would not really be text".getBytes())
.build();
Spring的后处理
MockMultipartHttpServletRequestBuildermvc.perform(multipart("/upload")
.with(request -> {
try {
request.setContent(httpEntity.getContent().readAllBytes());
request.setContentType(httpEntity.getContentType().getValue());
return request;
} catch (IOException e) {
throw new UncheckedIOException(e);
}
})
).andExpect(status().isAccepted());
能够添加多个字段，
private byte[] createFileContents(String requestId, String date, String image, String invoiceNumber,String imageFile) {
String requestIdField = "--" + BOUNDARY + "\r\n Content-Disposition: form-data; name=\"" + REQUEST_ID_KEY
+ "\";" + "Content-type: " + CONTENT_TYPE + "\r\n value=\"12345\"" + "\r\n\r\n";
String requestIdValue = requestId + "\r\n";
String numberFiledField = "--" + BOUNDARY + "\r\n Content-Disposition: form-data; name=\"" + NUMBER_KEY + "\";"
+ "Content-type: " + CONTENT_TYPE + "\r\n value=\"12345\"" + "\r\n\r\n";
String invoiceValue = invoiceNumber + "\r\n";
String dateField = "--" + BOUNDARY + "\r\n Content-Disposition: form-data; name=\"" + DATE_KEY + "\";"
+ "Content-type: " + CONTENT_TYPE + "\r\n value=\"12345\"" + "\r\n\r\n";
String dateValue = date + "\r\n";
String imageField = "--" + BOUNDARY + "\r\n Content-Disposition: form-data; name=\"" + IMAGE_KEY
+ "\"; filename=\"" + imageFile + "\"\r\n" + "Content-type: " + CONTENT_TYPE + "\r\n\r\n";
String imageValue = image + "\r\n";
String end = "\r\n--" + BOUNDARY + "--";
return ArrayUtils.addAll((requestIdField + requestIdValue + numberFiledField + invoiceValue + dateField
+ dateValue + imageField + imageValue).getBytes(), ArrayUtils.addAll(data, end.getBytes()));
}
我通过模拟 MVC 发送参数和文件来测试 multipart/form-data 的方法如下：
@Test
void testSendFeedback() throws Exception {
var builder = MockMvcRequestBuilders.multipart(URL_PATH);
Path path = Files.createTempFile("test-file", "tmp");
builder = builder.part(new MockPart("image", path.toFile().getName(), Files.readAllBytes(path)));
builder.param("field1", "value1")
.param("fields2", "value2");
mockMvc.perform(builder.header(HttpHeaders.AUTHORIZATION, YOUR_AUTH_VALUE).contentType(MediaType.MULTIPART_FORM_DATA_VALUE))
.andDo(print())
.andExpect(status().isNoContent());
}
我解决了必须使用 MultipartBodyBuilder 和 FormHttpMessageConverted 设置边界的问题，RestTemplate 使用 MultipartBodyBuilder 和 FormHttpMessageConverted 将 httpentity 转换为表单数据，以便与 Mockmvc 一起使用。
MultipartBodyBuilder multipartBodyBuilder = new MultipartBodyBuilder();
multipartBodyBuilder.part("projectId", project.getId());
multipartBodyBuilder.part("fileName", "sample.txt");
multipartBodyBuilder.part("format", "txt);
multipartBodyBuilder.part("file", new ClassPathResource("sample.txt"));
MultiValueMap<String, HttpEntity<?>> multiValueMap = multipartBodyBuilder.build();
FormHttpMessageConverter formHttpMessageConverter = new FormHttpMessageConverter();
HttpOutputMessage outputMessage = new MockHttpOutputMessage();
formHttpMessageConverter.write(multiValueMap, MediaType.MULTIPART_FORM_DATA, outputMessage);
mockMvc.perform(MockMvcRequestBuilders.multipart(HttpMethod.POST, "/xxx/xxx").contentType(outputMessage.getHeaders().getContentType()).content(outputMessage.getBody().toString()).with(user())).andExpect(MockMvcResultMatchers.status().isOk());