java.io.BufferedInputStream bis = null;
java.io.BufferedOutputStream bos = null;
HttpServletRequest request = ThreadContextHolder.getHttpRequest();
HttpServletResponse response = ThreadContextHolder.getHttpResponse();
Integer yml_id = Integer.valueOf(request.getParameter("yml_id"));
YmlModel yml = this.logiManager.queryforYml(yml_id);
String file = null;
String fileUrl="";
String savePath = request.getRealPath("/")+"test/upyml/";
if(yml!=null){
file = yml.getYml_upfile();
}
String fileName=file;
fileUrl=savePath+file;
try {
fileUrl = new String(fileUrl.getBytes("utf-8"), "utf-8");
response.setContentType("application/x-msdownload");
response.setCharacterEncoding("utf-8");
response.setHeader("Content-disposition", "attachment; filename="
+ fileName);
// 通知客户文件的MIME类型：
bis = new java.io.BufferedInputStream(new java.io.FileInputStream(
(fileUrl)));
bos = new java.io.BufferedOutputStream(response.getOutputStream());
byte[] buff = new byte[2048];
int bytesRead;
int i = 0;
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
i++;
}
bos.flush();
this.showSuccessJson("下载成功！");
} catch (Exception e) {
e.printStackTrace();
this.showSuccessJson("下载失败！");
} finally {
if (bis != null) {
try {
bis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
bis = null;
}
if (bos != null) {
try {
bos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
bos = null;
}
}
}
其中fileUrl为服务器中的文件真实路径，fileName为文件名。