[代码片段] AndroLua 实现MD5摘要计算

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import "java.security.MessageDigest"
function md5Count(str)
  stringBuffer=StringBuffer()
  bytes=MessageDigest.getInstance("md5").digest(String(str).getBytes())
  for k,n in ipairs(luajava.astable(bytes)) do
    temp=Integer.toHexString(n&255)
    if #temp==1 then stringBuffer.append("0") end
    stringBuffer.append(temp)
  end
  return stringBuffer
end