// response 会以流的形式响应到浏览器上 path文件地址
protected void downloadFile
(HttpServletRequest request, HttpServletResponse response
)
throws Exception
{
Map
<String, Object
> parameterMap
= getParameterMap
(request
);
String resourceId
=(String
)parameterMap.get
("resourceId");
String depId
=(String
)parameterMap.get
("depId");
ResourceDto resourceDto
= resourceService.getByResourceId
(resourceId
);
String path
=resourceDto.getOutterIp
()+resourceDto.getOriginPath
();
log.info
("下载地址：{}",path
);
log.info
("下载文件名称: {}",resourceDto.getResourceName
());
if (null
== path
) {
throw new RuntimeException
("remoteFileUrl is invalid!");
}
this.buildDownloadRecord
(depId,resourceId
);
URL url
= new URL
(path
);
BufferedInputStream
in = null
;
in = new BufferedInputStream
(url.openStream
());
response.reset
();
response.setContentType
("application/octet-stream");
response.setHeader
("Content-Disposition",
"attachment;filename=\"" + URLEncoder.encode
(resourceDto.getResourceName
(),
"UTF-8") +
"\"");
// 将网络输入流转换为输出流
try
{
int i
;
while ((i = in.read()) != -1
) {
response.getOutputStream
().write
(i
);
}
} catch
(IOException e
) {
log.error
("下载文件有误：{}",e
);
} finally
{
in.close
();
response.getOutputStream
().close
();
}
}
