protobuf导入定义（import）

#include "addressbook.pb.h" #include <iostream> #include <fstream> using namespace std; void set_addressbook() { tutorial::AddressBook obj; tutorial::Person *p1 = obj.add_people(); //新增加一个Person p1->set_name("mike"); p1->set_id(1); p1->set_email("mike@qq.com"); tutorial::Person::PhoneNumber *phone1 = p1->add_phones(); //增加一个phone phone1->set_number("110"); phone1->set_type(tutorial::Person::MOBILE); tutorial::Person::PhoneNumber *phone2 = p1->add_phones(); //增加一个phone phone2->set_number("120"); phone2->set_type(tutorial::Person::HOME); //info addr和group的使用 infopack::info *p_info = p1->mutable_tmp(); //取出info的对象指针 p_info->set_addr("China"); //地址 p_info->set_group("A"); //组 fstream output("pb.xxx",ios::out|ios::trunc|ios::binary); bool flag = obj.SerializeToOstream(&output);//序列化 if( !flag ) { cerr << "Failed to write file." << endl; return; } output.close();//关闭文件 } void get_addressbook() { tutorial::AddressBook obj; fstream input("./pb.xxx", ios::in|ios::binary); obj.ParseFromIstream(&input); //反序列化 input.close(); //关闭文件 for (int i = 0; i < obj.people_size(); i++) { const tutorial::Person& person = obj.people(i);//取第i个people cout << "第" << i+1 << "个信息\n"; cout << "name = " << person.name() << endl; cout << "id = " << person.id() << endl; cout << "email = " << person.email() << endl; for (int j = 0; j < person.phones_size(); j++) { const tutorial::Person::PhoneNumber& phone_number = person.phones(j); switch (phone_number.type()) { case tutorial::Person::MOBILE: cout << " Mobile phone #: "; break; case tutorial::Person::HOME: cout << " Home phone #: "; break; case tutorial::Person::WORK: cout << " Work phone #: "; break; } cout << phone_number.number() << endl; } //info addr和group的使用 infopack::info info = person.tmp(); //取出info的对象 cout << "addr = " << info.addr() << endl; cout << "group = " << info.group() << endl; cout << endl; } } int main() { // Verify that the version of the library that we linked against is // compatible with the version of the headers we compiled against. GOOGLE_PROTOBUF_VERIFY_VERSION; set_addressbook(); //序列化 get_addressbook(); //反序列化 // Optional: Delete all global objects allocated by libprotobuf. google::protobuf::ShutdownProtobufLibrary(); return 0; }