使用java下载电子邮件附件

I am doing a mail application using javamail. Every thing is fine, but when the user is downloading the attachment, he will get the exact attachment (fine) .at the same time a 0 byte file is creating in the server with same file name.

我正在使用javamail做一个邮件应用程序。一切都很好，但是当用户下载附件时，他将获得确切的附件（精细）。同时在具有相同文件名的服务器中创建一个0字节文件。

How do i stop creation of 0 byte files in the server.

如何停止在服务器中创建0字节文件。

my code is :-

我的代码是： -

attFile = new File(attname); 

FileOutputStream fileoutput = new FileOutputStream(attFile);

InputStream is = part.getInputStream(); 

BufferedOutputStream outs = new BufferedOutputStream(fileoutput); 

byte b[] = new byte[part.getSize()]; 

is.read(b); 

out = response.getOutputStream(); 

out.write(b);

1 个解决方案

#1

You have 2 different (unrelated AFAICT) output streams: outs (wrapping fileoutput) and out. outs and fileoutput do not seem to be used but create the empty file.

您有2个不同的（不相关的AFAICT）输出流：outs（包装fileoutput）和out。似乎没有使用outs和fileoutput但是创建了空文件。