MultipartFile轉化為byte數組
byte[] imgBytes = multipartFile.getBytes();
byte數組轉化為MultipartFile
轉換中我們會使用MockMultipartFile這個類,所有要引用相應包。 <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);