java 下載網絡中在文件

    URL url = new URL(Config.local + "/excel/" + name);

                HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();


            // 設置請求信息  
            httpConnection.setRequestProperty("GET", "/down.zip HTTP/1.1");  

            // 設置接受信息  
            httpConnection.setRequestProperty("Accept", "image/gif,image/x-xbitmap,application/msword");  

            // 設置連接信息  
            httpConnection.setRequestProperty("Connection", "Keep-Alive");  

            // 獲得輸入流  
            InputStream input = httpConnection.getInputStream();  

            // 創建隨機文件  
            flist.add(new File(name));  
            RandomAccessFile oSavedFile = new RandomAccessFile(name, "rw");  

            byte[] b = new byte[1024];  
            int nRead;  

            // 從輸入流中讀入字節流，然后寫到文件中  
            while ((nRead = input.read(b, 0, 1024)) > 0) {  
                oSavedFile.write(b, 0, nRead);  
            }  

            input.close();  
            oSavedFile.close();  
            httpConnection.disconnect();  </pre>