用流下载图片等遇到的名称，后缀名问题

 

用流下载图片等遇到的名称，后缀名问题

 

 

public String getObject() throws InvalidBucketNameException, NoSuchAlgorithmException, InsufficientDataException, IOException, InvalidKeyException, NoResponseException, XmlPullParserException, ErrorResponseException, InternalException, InvalidArgumentException {

HttpServletRequest request = ServletActionContext.getRequest();

fName = request.getParameter("fName");

String wxin = ConfigInfo.getPropertiesValue("s3.bucket");

byte[] str = Minoperator.getObject(wxin, imgurl);

fileNameFileName = fName;

         logger.info("图片上传==============fName"+fName);

logger.info("图片上传==============bluckname"+bluckname);

HttpServletResponse response = null;

ServletOutputStream out = null;

try {

response = ServletActionContext.getResponse();

response.setContentType("multipart/form-data");

//2.设置文件头：最后一个参数是设置下载文件名(假如我们叫a.pdf),防止浏览器下载后没有文件名，后缀名就是方法名

response.setHeader("Content-Disposition", "attachment;fileName="+imgurl);

out = response.getOutputStream();

out.write(str);

//防止没有提交完全就关闭流out.close()导致的流不完整

out.flush();

} catch (Exception e) {

e.printStackTrace();

} finally {

if (out != null) {

try {

out.close();

} catch (Exception e) {

e.printStackTrace();

}

}

if (response != null) {

try {

response.flushBuffer();

} catch (Exception e) {

e.printStackTrace();

}

}

}

return null;

}