java 下载图片到本地文件夹

不多说 直接上代码

String imgurl = request.getParameter("imgurl"); //图片url地址
		String name = request.getParameter("name"); //保存的图片名称
		 HttpURLConnection conn = null;
         InputStream inputStream = null;
         BufferedInputStream bis = null;
         FileOutputStream out = null;
         try
        {
            File file0=new File("C:\\Users\\Administrator\\Desktop");
            if(!file0.isDirectory()&&!file0.exists()){
                file0.mkdirs();
            }
            out = new FileOutputStream(file0+"\\"+name+".png");
            // 建立链接
            URL httpUrl=new URL(imgurl);
            conn=(HttpURLConnection) httpUrl.openConnection();
            //以Post方式提交表单，默认get方式
            conn.setRequestMethod("GET");
            conn.setDoInput(true);  
            conn.setDoOutput(true);
            // post方式不能使用缓存 
            conn.setUseCaches(false);
            //连接指定的资源 
            conn.connect();
            //获取网络输入流
            inputStream=conn.getInputStream();
            bis = new BufferedInputStream(inputStream);
            byte b [] = new byte[1024];
            int len = 0;
            while((len=bis.read(b))!=-1){
                out.write(b, 0, len);
            }
            response.getWriter().write(Globals.SUCCESS);
        } catch (Exception e) {
            e.printStackTrace();
            response.getWriter().write(Globals.SYSTEM_BUSY);
        }finally{
            try {
                if(out!=null){
                    out.close();
                }
                if(bis!=null){
                    bis.close();
                }
                if(inputStream!=null){
                    inputStream.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }