Base64Decoder使用时找不到包

使用Base64加解密时,eclipse的设置

public static void main(String[] args){
String s=“H4sIAAAAAAAAAJVTPW/VMBT9K/wD2/kgbXVlyc/xo1Ff7JA4iNfFS6dKTJ3K72FDQgiQqkclGJgK”+
“A1FB3ehQ9krdUCfs5MWJURey+N5zj2/uxzEsi5Uwel0JSqKEAJp8WLYyN0VOX5xg7CJbF2pRqVoP”+
“JBeY+7AQTwppcqYFjXBEcIxTQDMQhM3iLEQhF5U2XOU2Tf+HyQcubMYit6RG1AVbGal8Puy/OAY0”+
“xW1hXNW2QF2UotFl5W88ItEejvcwBuRjwFmzT4mFegNUq01fAONc0sdxRrLdDCeAwkDA00ayUlCu”+
“mnc3X3+a5vmqcX08QOmvMS61WTB5QK+6zf2Xu4v7yz9dt7k4+/Wj+369ef3t0/tXHz6eXXXdkGPi”+
“gxvfVNxuluCM7OwACvA566HSooA/Vmah/yksoIOuWS7+XfcMtDspWX1AL8/f/j5/8/nWqaUH4Jlq”+
“+b6obTkNHyUWYKAqUTNdKDlI6/BwveinG8JWIE/d9reSiJI0TZ0qetA2ZyUxaOr06OT49KVrwENB”+
“76ZqJLX122fQJ0rDXvtweMHlQOMM7N94pZfjFEjixOlD0/55W1Mu17MNO8Qn9uE5AFXBDV+pBRpM”+
“tzg0zpZ4K/JW7K3EW6m1ZFuS4YiGIx6OZDgcBW1f0V837yfaGgQAAA==”;

    try{
        sun.misc.BASE64Decoder decoder=new sun.misc.BASE64Decoder();
        byte[] arr = decoder.decodeBuffer(s);
      //解密
        String aa=new String(uncompress(arr),"GBK");
        System.out.println(aa);
    }catch(IOException e){
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}
/**
*解压gzip文件
*/
    public static byte[] uncompress(byte[] bytes) {
    if (bytes == null || bytes.length == 0) {
        return null;
    }
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    ByteArrayInputStream in = new ByteArrayInputStream(bytes);
    try {
        GZIPInputStream ungzip = new GZIPInputStream(in);
        byte[] buffer = new byte[256];
        int n;
        while ((n = ungzip.read(buffer)) >= 0) {
            out.write(buffer, 0, n);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return out.toByteArray();
}

使用时发现eclipse无法找到对应的sun.misc的包,需要进行如下配置:
1.右键项目,build path–>config buildpath
在这里插入图片描述
2.编辑jre下的Access rules

3.新增rule即可