MinIO java.lang.IllegalArgumentException: Unexpected char 0x6d4b at 0 in Content-Type value问题解决

朱雀 2022-09-05 15:44 7阅读 0赞

### 问题描述： ###

java.lang.IllegalArgumentException: Unexpected char 0x6d4b at 0 in Content-Type value: 测试文件.xlsx

### 问题分析： ###

1、使用new MockMultipartFile(String name, String originalFilename,String contentType, InputStream contentStream)方法生成MultipartFile对象时，contentType参数值不正确，导致MinIO上传文件报错。

try {
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                byte[] barray = bos.toByteArray();
                //byte[] to InputStream
                InputStream is = new ByteArrayInputStream(barray);
                //InputStream to MultipartFile
                MultipartFile multipartFile = new MockMultipartFile("测试文件.xlsx", "测试文件.xlsx", "测试文件.xlsx", is);
            } catch (Exception e) {
                e.printStackTrace();
            }

解决办法：

contentType参数值设为text/plain。

try {
                String contentType="text/plain";
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                workbook.write(bos);
                //Workbook to byte[]
                byte[] barray = bos.toByteArray();
                //byte[] to InputStream
                InputStream is = new ByteArrayInputStream(barray);
                //InputStream to MultipartFile
                MultipartFile multipartFile = new MockMultipartFile("测试文件.xlsx", "测试文件.xlsx", contentType, is);
            } catch (Exception e) {
                e.printStackTrace();
            }