C++使用protobuf傳輸中間包含\0的字節數組，protobuf數組

C++使用protobuf傳輸中間包含\0的字節數組，protobuf數組

The C++ implementation of protocol buffers returns the byte and string types as std::string. This structure contains a length function telling you how long the corresponding data is (as well as the data itself.) Thus there is no special significance of embeded \0 characters.

The setting functions accept a string too, or there are versions that accept a buffer and length. If you want to set a field you can just do this:

pb.set_foo( std::string( data, data_length ));

or

pb.set_foo( data, data_length );

以上的方式在讀取的時候,還是被轉換為string（到第一個\0)

可以通過這樣的方式解決：

pt.mutable_foo()，協議中再加上length即可