使用谷歌协议缓冲区传输字符串字符时，得到了凌乱的代码 [英] When using google protocol buffers to transfer String character,got messy code

问题描述

在调试视图中：

这是编码为凌乱字符串的代码...

Here is the code which encodes into messy string...

((S2CEnterCollection)objS2c).toByteString().toStringUtf8();

输出：

    ���"default(
    ���"default(
    ���"default(
    ���"default(
    ���"default(
    ����"default(
    ����"default(
    �����"default(

以下是具有正确字符串的代码：

Here is the code which has the right string:

((S2CEnterCollection)objS2c).toString()

原始字符串为：

    cardList {
      cardId: 100001
      liked: 100
      number: 10
      finder: "default"
      rank: 1
    }
    cardList {
      cardId: 100002
      liked: 123
      number: 10
      finder: "default"
      rank: 1
    }
    cardList {
      cardId: 100003
      liked: 543
      number: 10
      finder: "default"
      rank: 1
    }
    cardList {
      cardId: 100004
      liked: 766
      number: 10
      finder: "default"
      rank: 1
    }
    cardList {
      cardId: 100005
      liked: 78
      number: 10
      finder: "default"
      rank: 1
    }
    cardList {
      cardId: 100006
      liked: 89
      number: 123
      finder: "default"
      rank: 1
    }
    cardList {
      cardId: 100007
      liked: 199
      number: 567
      finder: "default"
      rank: 1
    }
    cardList {
      cardId: 100008
      liked: 90909
      number: 232
      finder: "default"
      rank: 1
    }

那么，有没有人知道它是如何工作的？

So, does anyone know how it works?

推荐答案

protobuf数据是二进制的，是没有编码的文字。你不能通过像UTF-8这样的编码来运行它，并期望得到一个字符串（或者期望它仍然有效）。将protobuf数据转换为字符串的唯一方法是通过base-N编码运行一些N，通常为64（因为它在大多数平台上得到很好的支持）。

protobuf data is binary, and is not encoded text. You cannot run it through an encoding like UTF-8 and expect to get a string (or expect it to still be valid). The only way to convert protobuf data to a string is to run it through a base-N encode for some N, typically 64 (because it is well-supported on most platforms).

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