InputStream is = new FileInputStream(file);
String root = ServletActionContext.getRequest()
.getRealPath("/bookpicture");
File f = new File(root, this.getFileFileName());
picture="."+"\\"+"bookpicture"+"\\"+this.getFileFileName();
System.out.println
("======picture====="+picture);
OutputStream os = new FileOutputStream(f);
byte[] buffer = new byte[1024];
int len = 0;
while ((len = is.read(buffer)) > 0) {
os.write(buffer, 0, len);