java 图片下载

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java图片下载代码

  try {
			String urlInfo = new String(this.getRequest().getParameter("urlInfo").getBytes("iso-8859-1"), "utf-8");
			File file = new File(urlInfo);
			FileInputStream fis = new FileInputStream(file);
	        BufferedInputStream buff = new BufferedInputStream(fis);
	        byte [] b = new byte[1024];
	        long k=0;
	        ServletOutputStream myout = ServletActionContext.getResponse().getOutputStream();
	        while(k < file.length()){
	            int j = buff.read(b,0,1024);
	            k+=j;
	            myout.write(b,0,j);
	        }
	        myout.flush();
	        myout.close();
		} catch (IOException e) {
			e.printStackTrace();
		}