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我想知道是否可以直接从小程序以动态方式从 java 访问缓存，换句话说，小程序必须在多个操作系统中工作。

所有这一切都是因为我想在 java 缓存中加载一个文件，以便不必在每次加载小程序时都下载该文件。

这就是我现在所拥有的：

    try {
        URL url = new URL( "http://www.dcc.fc.up.pt/~aaugusto/libpcsclite.so");
        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setRequestMethod("GET");
        urlConnection.setDoOutput(true);
        urlConnection.connect();
        File file = new File("libpcsclite.so");
        System.out.println(file.length()+" "+file.exists());
        FileOutputStream fileOutput = new FileOutputStream(file);
        InputStream inputStream = urlConnection.getInputStream();
        //int totalSize = urlConnection.getContentLength();
        @SuppressWarnings("unused")
        int downloadedSize = 0;
        byte[] buffer = new byte[1024];
        int bufferLength = 0; //used to store a temporary size of the buffer
        while ((bufferLength = inputStream.read(buffer)) > 0 ) {
            fileOutput.write(buffer, 0, bufferLength);
            downloadedSize += bufferLength;
        }
        fileOutput.close();
        System.out.println(file.length()+" DAMN "+file.getPath());
        System.out.print(file.getAbsolutePath());
    } catch (IOException e) {
        e.printStackTrace();
    }
}

ps：我不能使用JNLP。我有证书可以签署小程序

此致，

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