https://github.com/protocolbuffers/protobuf/
下载最新的release版本，23.3
必须需要依赖的第三方库 abseil，utf8_range
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=DEBUG -DCMAKE_INSTALL_PREFIX=/usr/local -Dprotobuf_BUILD_SHARED_LIBS=OFF -Dprotobuf_WITH_ZLIB=OFF -Dprotobuf_BUILD_TESTS=OFF ..
make
sudo make install
或直接修改CmakeList.txt 添加/修改以下内容
set(protobuf_VERBOSE ON) #debug信息 set(protobuf_BUILD_TESTS OFF)#不编译test set(protobuf_WITH_ZLIB OFF) #不使用zlib set(protobuf_WITH_ZLIB_DEFAULT OFF)#不使用zlib set(protobuf_BUILD_SHARED_LIBS OFF)#静态库 set(protobuf_BUILD_SHARED_LIBS_DEFAULT OFF)#静态库 set(CMAKE_INSTALL_PREFIX /usr/local)#安装路径
如果要建立动态库，依赖的abseil 最好也是动态库.
安装后使用的方法，在target_link_libraries里，需要先写protobuf，然后rtf8_range，最后才是absl。 顺序不可以改变，因为protobuf要依赖后两个，rtf8_range要依赖absl
目录结构
cmakeList.txt
absl把所有的都一起贴上了
cmake_minimum_required(VERSION 3.19)
project(protobut_demo)
set(CMAKE_CXX_STANDARD 17)
include_directories(/usr/local/include)
#------------------------------------------------------------------
find_package(Protobuf REQUIRED)
include_directories(${Protobuf_INCLUDE_DIRS})
#${Protobuf_LIBRARIES}
#检查是否有值
MESSAGE("Protobuf lib path :" ${Protobuf_LIBRARIES})
MESSAGE("Protobuf include path:" ${Protobuf_INCLUDE_DIRS})
MESSAGE("Protobuf exetuable path:" ${PROTOBUF_PROTOC_EXECUTABLE})
# proto源文件位置
SET(PROTO_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/proto)
# proto 文件生成位置，包含.pb.cc 和 .pb.h
SET(PROTO_OUTPUT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/proto_output)
# proto 文件
file(GLOB proto_files
${CMAKE_CURRENT_SOURCE_DIR}/proto/*.proto
)
# 生成文件
FOREACH(PROTO_FILE ${proto_files})
EXECUTE_PROCESS(
COMMAND ${PROTOBUF_PROTOC_EXECUTABLE} -I${PROTO_SOURCE_DIR} --cpp_out=${PROTO_OUTPUT_DIR} ${PROTO_FILE}
)
ENDFOREACH()
#---------------------------------------------------------------------------------------------
include_directories(${PROTO_OUTPUT_DIR})#生成的头文件路径
# 将proto生成的.pb.cc 和 .pb.h分类
file(GLOB contacts_All
${PROTO_OUTPUT_DIR}/*.pb.h
${PROTO_OUTPUT_DIR}/*.pb.cc
)
find_package(absl)
find_package(utf8_range)
add_executable(proto_test src/proto_test.cpp ${contacts_All})
target_link_libraries(proto_test
${Protobuf_LIBRARIES}
/usr/local/lib/libutf8_range.a
/usr/local/lib/libutf8_validity.a
absl::bad_any_cast_impl
absl::bad_optional_access
absl::bad_variant_access
absl::base
absl::city
absl::civil_time
absl::cord
absl::cord_internal
absl::cordz_functions
absl::cordz_handle
absl::cordz_info
absl::cordz_sample_token
absl::crc32c
absl::crc_cord_state
absl::crc_cpu_detect
absl::crc_internal
absl::debugging_internal
absl::demangle_internal
absl::die_if_null
absl::examine_stack
absl::exponential_biased
absl::failure_signal_handler
absl::flags
absl::flags_commandlineflag
absl::flags_commandlineflag_internal
absl::flags_config
absl::flags_internal
absl::flags_marshalling
absl::flags_parse
absl::flags_private_handle_accessor
absl::flags_program_name
absl::flags_reflection
absl::flags_usage
absl::flags_usage_internal
absl::graphcycles_internal
absl::hash
absl::hashtablez_sampler
absl::int128
absl::kernel_timeout_internal
absl::leak_check
absl::log_entry
absl::log_flags
absl::log_globals
absl::log_initialize
absl::log_internal_check_op
absl::log_internal_conditions
absl::log_internal_format
absl::log_internal_globals
absl::log_internal_log_sink_set
absl::log_internal_message
absl::log_internal_nullguard
absl::log_internal_proto
absl::log_severity
absl::log_sink
absl::low_level_hash
absl::malloc_internal
absl::periodic_sampler
absl::random_distributions
absl::random_internal_distribution_test_util
absl::random_internal_platform
absl::random_internal_pool_urbg
absl::random_internal_randen
absl::random_internal_randen_hwaes
absl::random_internal_randen_hwaes_impl
absl::random_internal_randen_slow
absl::random_internal_seed_material
absl::random_seed_gen_exception
absl::random_seed_sequences
absl::raw_hash_set
absl::raw_logging_internal
absl::scoped_set_env
absl::spinlock_wait
absl::stacktrace
absl::status
absl::statusor
absl::strerror
absl::str_format_internal
absl::strings
absl::strings_internal
absl::symbolize
absl::synchronization
absl::throw_delegate
absl::time
absl::time_zone
)
student.proto
syntax = "proto3";
package student;
// 定义联系人message
message StudentInfo {
string name = 1;
bool isMale = 2;
int32 age = 3;
}student.pb.cc和student.pb.h 是用cmake生成的
proto_test.cpp
#include <iostream>
#include "student.pb.h"
#include <google/protobuf/compiler/plugin.h>
int main(int argc,char** argv) {
std::string data_str;
{
// 使⽤ PB 进⾏序列化，并将结果打印出来。
student::StudentInfo _student;
_student.set_name("小豪豪");
_student.set_ismale(true);
_student.set_age(20);
if (!_student.SerializeToString(&data_str)) {
std::cerr << "序列化_student失败！" << std::endl;
return -1;
}
std::cout << "序列化_student成功，结果：" << data_str << std::endl;
}
{
// 使⽤ PB 进⾏反序列，解析出联系⼈信息并打印出来。
student::StudentInfo _student;
if (!_student.ParseFromString(data_str)) {
std::cerr << "反序列化失败！" << std::endl;
return -1;
}
std::cout << "反序列化成功！" << std::endl;
std::cout << "name:" << _student.name() << std::endl;
std::cout << "ismale:" << _student.ismale() << std::endl;
std::cout << "age:" << _student.age() << std::endl;
}
return 0;
} //
// Created by hao on 2023/6/26.
//
