package com.yuanchung.sales.util;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.log4j.Logger;
import org.apache.struts.upload.FormFile;

public class Upload {
	static Logger logger = Logger.getLogger(Upload.class);

	public static String upload(FormFile theFile, String filePath) {
		logger.debug("開始上傳");
		String fileName=null;
		try {
			// 開始上傳文件
			fileName = new SimpleDateFormat("yyyy-MM-dd").format(new Date())+"-"+theFile.getFileName();
			InputStream stream = theFile.getInputStream(); // 把文件讀入
			String upload = (filePath);
			upload = upload.substring(0, upload.length() - 1).concat("\\");
			if (!(new File(upload).isDirectory())) {
				new File(upload).mkdirs();
			}
			OutputStream bos = new FileOutputStream(filePath + fileName);

			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 (Exception e) {
			logger.error(e);
		}
		return fileName;
	}

}