文件下载jsp

<%

response.reset();

OutputStream o=response.getOutputStream();

BufferedOutputStream bos=new BufferedOutputStream(o);

byte b[]=new byte[500];

File fileLoad=new File("D:/文档/电影/","王牌逗王牌.mkv");

response.setHeader("Content-disposition", "attachment;filename="+"王牌逗王牌.mkv");

response.setContentType("application/x-tar");

long fileLength=fileLoad.length();

String length=String.valueOf(fileLength);

response.setHeader("Content_Length", length);

FileInputStream in=new FileInputStream(fileLoad);

int n=0;

while((n=in.read(b))!=-1){

bos.write(b, 0, n);

}

bos.close();

response.reset();

%>