Java接收Flash请求的二进制流图片

public HttpServletRequest request = ServletActionContext.getRequest();

/**
* @Methed接收请求的二进制图片生成新的图片
* @disc get binary, create pic
* @return
*/

public void uploadImages(){

try {
InputStream  imgStream = request.getInputStream();
if(imgStream!=null){
String time=datefileFormat.format(new Date());
String	imgfilename = time+ ".jpg";
String path = ServletActionContext.getServletContext().getRealPath("/userfiles") + File.separator + imgfilename;
File imageFile = new File(path);
if(!imageFile.exists()){
imageFile.createNewFile();
}
FileOutputStream fos = new FileOutputStream(imageFile);
byte[] Buffer = new byte[1024*1024];
int size = 0;
while((size = imgStream.read(Buffer))!=-1){
fos.write(Buffer,0,size);
}
String getPath="userfiles/"+imgfilename;
fos.close();
imgStream.close();

message="{\"success\":\"true\",\"path\":\""+getPath+"\"}";

}

} catch (Exception e) {
message="{\"success\":\"false\",\"error\":\"01:系统错误\"}";
// TODO Auto-generated catch block
e.printStackTrace();
}
this.renderJson(message);
}