package?net.blogjava.upload;

import?java.io.File;
import?java.io.FileNotFoundException;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.io.InputStream;
import?java.io.OutputStream;

import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;

import?org.apache.struts.action.Action;
import?org.apache.struts.action.ActionForm;
import?org.apache.struts.action.ActionForward;
import?org.apache.struts.action.ActionMapping;
import?org.apache.struts.upload.FormFile;

public?class?UploadImageAction?extends?Action?{

	@Override
	public?ActionForward?execute（ActionMapping?mapping?ActionForm?form
			HttpServletRequest?request?HttpServletResponse?response）
			throws?Exception?{
		UploadImageForm?uploadForm?=?（UploadImageForm）?form;
		FormFile?image?=?uploadForm.getFormFile（）;
		if?（image.getFileSize（）?==?0）?{
			request.setAttribute（“msg“?“你還沒選擇文件呢！“）;
			return?mapping.findForward（“input“）;
		}
		if?（!checkImageContentType（image））?{
			request.setAttribute（“msg“?“圖片類型不正確，請重新選擇！“）;
			return?mapping.findForward（“input“）;
		}
		String?path?=?servlet.getServletContext（）.getRealPath（“/upload/image“）;
		path?+=?“/“;
		String?photoName?=?“superxzl“;
		photoName?=?photoName
				+?image.getFileName（）.substring（
						image.getFileName（）.lastIndexOf（“.“））;
		System.out.println（“[PhotoName]“?+?photoName）;
		File?file?=?new?File（path）;
		if?（!file.exists（））?{
			file.mkdir（）;
		}
		try?{
			InputStream?stream?=?image.getInputStream（）;
			OutputStream?bos?=?new?FileOutputStream（path?+?photoName）;
			int?bytesRead?=?0;
			byte[]?buffer?=?new?byte[8192];
			while?（（bytesRead?=?stream.read（buffer?0?8192））?!=?-1）?{
				bos.write（buffer?0?bytesRead）;
			}
			bos.close（）;
			stream.close（）;
		}?catch?（FileNotFoundException?fnfe）?{
			request.setAttribute（“msg“?“文件路徑不正確，請重新選擇！“）;
			return?mapping.findForward（“input“）;
		}?catch?（IOException?ioe）?{
			request.setAttribute（“msg“?“上傳出錯，請重來！“）;
			return?mapping.findForward（“input“）;
		}

		image.destroy（）;
		System.out.println（“[Photo_Src]“
				+?servlet.getServletContext（）.getContextPath（）?+?“/image/“
				+?image.getFileName（））;
		//?String?photoPath?=
		//?servlet.getServletContext（）.getContextPath（）+“/image/“?+
		//?image.getFileName（）;
		request.setAttribute（“fileName“?photoName）;
		request.setAttribute（“msg“?“success“）;
		return?mapping.findForward（“input“）;
	}

	private?boolean?checkImageContentType（FormFile?formFile）?{
		String?contentType?=?formFile.getContentType（）;
		System.out.println（“[ContentType]“?+?contentType）;
		if?（contentType.equals（“image/pjpeg“）
				||?contentType.equals（“image/jpeg“）
				||?contentType.equals（“image/gif“）
				||?contentType.equals（“image/bmp“））?{
			return?true;
		}
		return?false;
	}

}