Google protocol buffer Use notes __google

A moment to download
Google Download Address: Https://developers.google.com/protocol-buffers/docs/downloads?hl=zh-CN
GitHub Download Address: https://github.com/google/protobuf
I download version here: protobuf-2.6.1.tar.gz


Second compilation
1 decompression
Extract the above compressed package into the folder protobuf-2.6.1.


2 compiling
2.1 In protobuf-2.6.1, find Vsprojects/protobuf.sln, double-click with vs to open.
2.2 Set the compile mode to release mode, then compile Libprotobuf,libprotobuf-lite,libprotoc,protoc (right key-> build).


3 Copy Library
In Vsprojects\release find Libprotobuf.lib,libprotobuf-lite.lib,libprotoc.lib and Protoc.exe, copy to C:\Windows directory.


4 Generating header files
Double-click Extract_includes.bat to generate an include directory under the Vsprojects directory.


Three compiler Proto
1 Create a new Person.proto in the D:/GPB directory and edit the contents as follows:

Package proto;


Message person {
  Required String name = 1;
  Required Int32 id = 2;
  Optional String email = 3;
}

#gpb即Google Protocol Buffer


2 generating C + + classes
In the GPB file, right-click-> to open the command line here, enter:
Protoc.exe Person.proto--cpp_out=.


This generates the person class under the current folder, and the file is as follows:



Four Proto detailed explanation
1 Key Words
The package keyword is to specify a namespace
Message keyword, similar to struct in C or class in C + + and Java


2 Property Description
Required non-empty fields
Optional optional fields
A field represented by repeated can contain 0 or more data.


3 types

As shown in figure:

Original link: http://blog.csdn.net/xufeng0991/article/details/45031211