服务器环境搭建

操作系统 ：centos7

 

1. 可以看一下有没有boost软件包

yum list | grep boost

 

2. 有就直接安装，没有就去网上找

yum install boost
yum install boost-devel 
yum install boost-doc

 

3. 编译这段test程序，成功则安装成功 （不会有人不会编译吧）

#include <iostream>
#include <boost/timer.hpp>
using namespace std;

int main()
{
        boost::timer t;
        cout << "max timespan:"<<t.elapsed_max()/3600<<"h"<<endl;

        cout << "min tmiespan:"<<t.elapsed_min()<<"s"<<endl;

        cout<<"now time elapsed:"<<t.elapsed()<<"s"<<endl;
        return 0;
}

 

4. 安装yaml，（如果cmake版本过低，请看第5步 ）

git clone https://github.com/jbeder/yaml-cpp.git   
cd yaml-cpp   
mkdir build    
cd build   
cmake ..
make -j 4
sudo make install    

 5. 升级cmake

## 1. 查看当前cmake版本
[root@localhost ~]# cmake -version
cmake version 2.8.12.2
## 2. 进行卸载
[root@localhost ~]# yum remove -y cmake
## 3. 进行安装包的下载，也可以下载好安装包后传至相应的目录
[root@localhost ~]# mkdir /opt/cmake
[root@localhost ~]# cd /opt/cmake/
## 4. 下载或拷贝，解压
[root@localhost cmake]# wget https://cmake.org/files/v3.16/cmake-3.16.6.tar.gz
[root@localhost cmake]# tar -zxvf cmake-3.16.6.tar.gz
## 5. 安装基本工具
[root@localhost cmake]# yum install -y gcc gcc-c++  
## 6. 进行编译连接
[root@localhost cmake]# cd cmake-3.16.6
[root@localhost cmake]# ./configure --prefix=/usr/local/cmake
## 7. 安装
[root@localhost cmake-3.16.6]# make && make install 
## 8. 创建链接
[root@localhost cmake-3.16.6]# ln -s /usr/local/cmake/bin/cmake /usr/bin/cmake 
## 9. 查看版本
[root@localhost cmake-3.16.6]# cmake -version
cmake version 3.16.6
CMake suite maintained and supported by Kitware (kitware.com/cmake).
[root@localhost cmake-3.16.6]# 
[root@localhost cmake-3.16.6]# 

 

6. 测试Yaml，写一个config.yaml配置文件

lastLogin: 2020-09-18 10:17:40
username: root
password: 123

 

7. c++代码，源文件名demo1.cpp

 #include <yaml-cpp/yaml.h>
 #include <iostream>
 #include <string>
 #include <fstream>
 using std::cout;
 using std::endl;
 
 int main(int argc, char* argv[])
 {
     YAML::Node config = YAML::LoadFile("config.yaml");
  
     if (config["lastLogin"]) {
          std::cout << "Last logged in: " << config["lastLogin"].as<std::string>() << std::endl;
     }
  
     const std::string username = config["username"].as<std::string>();
     const std::string password = config["password"].as<std::string>();
     config["lastLogin"] = "2020-09-19 11:17:40";
  
     std::ofstream fout("config.yaml");
     fout << config;
  
     return 0;
 }

 

8. 编译 运行，编译后能运行则安装成功。

g++ demo1.cpp -o demo1 -std=c++11 -I/usr/local/include -L/usr/local/lib64 -lyaml-cpp
./dome1