技術標籤：Javajava

Java通過指定地址從伺服器下載檔案到本地

萬能模板

	try {
			String downloadPath = "*******************************";
            //獲取檔名
            String filename = downloadPath.substring(downloadPath.lastIndexOf("\\")+1);
            // 解決中文亂碼
           /* filename = new String(filename.getBytes("ISO-8859-1"),"UTF-8");*/
 


            File file = new File(downloadPath);
            //如果檔案不存在
			if(!file.exists()){
			    return;
			}
            //設定響應頭，控制瀏覽器下載該檔案
            response.setHeader("content-disposition", "attachment;filename=" + URLEncoder.encode(filename, "UTF-8"));
            //讀取要下載的檔案，儲存到檔案輸入流
 

            in= new FileInputStream(downloadPath);
            //建立輸出流
            out= response.getOutputStream();
            //快取區
            byte buffer[] = new byte[1024];
            int len = 0;
            //迴圈將輸入流中的內容讀取到緩衝區中
            while((len = in.read(buffer)) > 0){
                out.write
 
(buffer, 0, len);
            }
        }finally {
            //關閉
            in.close();
            out.close();
        }