这是我们提供RPC的服务类：

class MprpcApplication
{
public:
    static void Init(int argc, char **argv);
    static MprpcApplication& GetInstance();
    static MprpcConfig& GetConfig();
private:
    static MprpcConfig m_config;

    MprpcApplication(){}
    MprpcApplication(const MprpcApplication&) = delete;
    MprpcApplication(MprpcApplication&&) = delete;
};

 在init操作中，我们加载配置文件，进行去除空格等操作

void MprpcApplication::Init(int argc, char **argv)
{
    if (argc < 2)
    {
        ShowArgsHelp();
        exit(EXIT_FAILURE);
    }

    int c = 0;
    std::string config_file;
    while((c = getopt(argc, argv, "i:")) != -1)
    {
        switch (c)
        {
        case 'i':
            config_file = optarg;
            break;
        case '?':
            ShowArgsHelp();
            exit(EXIT_FAILURE);
        case ':':
            ShowArgsHelp();
            exit(EXIT_FAILURE);
        default:
            break;
        }
    }

    // 开始加载配置文件了 rpcserver_ip=  rpcserver_port   zookeeper_ip=  zookepper_port=
    m_config.LoadConfigFile(config_file.c_str());

    // std::cout << "rpcserverip:" << m_config.Load("rpcserverip") << std::endl;
    // std::cout << "rpcserverport:" << m_config.Load("rpcserverport") << std::endl;
    // std::cout << "zookeeperip:" << m_config.Load("zookeeperip") << std::endl;
    // std::cout << "zookeeperport:" << m_config.Load("zookeeperport") << std::endl;
}

MprpcApplication& MprpcApplication::GetInstance()
{
    static MprpcApplication app;
    return app;
}

MprpcConfig& MprpcApplication::GetConfig()
{
    return m_config;
}