MultipartFile转化为byte数组
byte[] imgBytes = multipartFile.getBytes();
byte数组转化为MultipartFile
转换中我们会使用MockMultipartFile这个类,所有要引用相应包。 <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>RELEASE</version> </dependency> byte[] testFile = new byte[1024]; InputStream inputStream = new ByteArrayInputStream(testFile); MultipartFile file = new MockMultipartFile(ContentType.APPLICATION_OCTET_STREAM.toString(), inputStream);