下载文件

下载文件的代码,不论格式,从碰盘将文件读出来,下载

response.setContentType("application/x-download");//设置为下载application/x-download
response.addHeader("Content-Disposition","attachment;filename=" + filePath);
OutputStream outputStream = response.getOutputStream();
String fileRealPath = "";
fileRealPath = siteRealPath + filePath;

InputStream inputStream = new FileInputStream(fileRealPath);
byte[] buffer = new byte[1024];
int i = -1;
while ((i = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, i);
}
outputStream.flush();
outputStream.close();