OK，我发现我的问题的解决方案

OK that i found a solution for my question

code在java中假设图像已经转换为位图：

code in java assuming that the image is already converted to bitmap:

        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        bmIcone.compress(Bitmap.CompressFormat.PNG, 90, stream);
        byte[] byte_arr = stream.toByteArray();
        String image_str = Base64.encodeBytes(byte_arr);
        namevaluepair.add(new BasicNameValuePair("image", image_str));

在服务器：

$base= $_REQUEST['image'];
    $buffer = base64_decode($base);

    $buffer = mysql_real_escape_string($buffer);

然后插入$缓冲区表BLOB列类型

then inserting the $buffer to table blob column type