C/C++编程：redis的cpp库

叁歲伎倆 2022-12-20 06:03 132阅读 0赞

[redis官方推荐的CPP库][redis_CPP]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70_pic_center]

# hiredis #

这里我们只用了`hiredis`  
使用方法如下：

1.  [linux安装Redis4][linux_Redis4]
2.  安装redis自带的hiredis：

# cd {redis-src}
    # cd deps/hiredis/
    # make
    # make install
    mkdir -p /usr/local/include/hiredis /usr/local/include/hiredis/adapters /usr/local/lib
    cp -pPR hiredis.h async.h read.h sds.h /usr/local/include/hiredis
    cp -pPR adapters/*.h /usr/local/include/hiredis/adapters
    cp -pPR libhiredis.so /usr/local/lib/libhiredis.so.0.14
    cd /usr/local/lib && ln -sf libhiredis.so.0.14 libhiredis.so
    cp -pPR libhiredis.a /usr/local/lib
    mkdir -p /usr/local/lib/pkgconfig
    cp -pPR hiredis.pc /usr/local/lib/pkgconfig

现在hiredis已经被安装于/usr/local/include/hiredis/和/usr/local/lib/下

1.  使用方法  
    ![在这里插入图片描述][20201111105047435.png_pic_center]  
    CMakeLists.txt

cmake_minimum_required(VERSION 3.16)
    project(redis_learning)
    
    set(CMAKE_CXX_STANDARD 11)
    
    #添加库文件搜索路径
    link_directories(/usr/local/lib/)
    aux_source_directory(. DIR_SRCS)
    add_executable(redis_learning ${
        DIR_SRCS})
    target_link_libraries(redis_learning -lpthread -lhiredis )

redis.h

//
    // Created by oceanstar on 2020/11/11.
    //
    
    #ifndef REDIS_LEARNING_REDIS_H
    #define REDIS_LEARNING_REDIS_H
    #include <iostream>
    #include <string.h>
    #include <string>
    #include <stdio.h>
    
    #include <hiredis/hiredis.h>
    class Redis{
        
    public:
        Redis(){
        };
    
        ~Redis(){
        
            this->_connect = nullptr;
            this->_reply = nullptr;
        }
    
        bool  connect(std::string host, int port){
        
            this->_connect = redisConnect(host.c_str(), port);
            if(this->_connect != nullptr && this->_connect->err){
        
                printf("connect error: %s\n", this->_connect->errstr);
                return false;
            }
    
            return true; //1
        }
    
    
        std::string get(const std::string& key){
        
            this->_reply = (redisReply*)redisCommand(this->_connect, "GET %s", key.c_str());
            std::string str = this->_reply->str;
            freeReplyObject(this->_reply);
            return str;
        }
    
    
        void set(const std::string& key, const std::string& value)
        {
        
            redisCommand(this->_connect, "SET %s %s", key.c_str(), value.c_str());
        }
    private:
        redisContext* _connect;
        redisReply* _reply;
    };
    
    #endif //REDIS_LEARNING_REDIS_H

main.cpp

#include <iostream>
    #include "redis.h"
    int main() {
        
        Redis *r = new Redis();
        if(!r->connect("127.0.0.1", 6379)){
        
            return 0;
        }
    
        r->set("name", "Andy");
        printf("Get the name is %s\n", r->get("name").c_str());
        delete r;
        std::cout << "Hello, World!" << std::endl;
        return 0;
    }

[C++操作Redis的简单例子][C_Redis]

# redisconnect【使用最简单】 #

[https://gitee.com/xungen/redisconnect.git][https_gitee.com_xungen_redisconnect.git]  
1、RedisConnect是基于C++11实现的简单易用的Redis客户端。  
2、源码只包含一个头文件与一个命令行工具源文件，无需编译安装，真正做到零依赖。  
3、自带连接池功能，调用Setup方法初始化连接池，然后执行Instance方法就可以获取一个连接。  
4、RedisConnect包装了常用的redis命令，对于未包装的命令你可以使用可变参模板方法(execute)进行调用。

使用方法：

*  git clone https://gitee.com/xungen/redisconnect.git
 *  然后将对应文件复制到工程中，如下  
    ![在这里插入图片描述][20201111135254637.png_pic_center]  
    CMakeLists.txt

cmake_minimum_required(VERSION 3.16)
    project(redis_learning)
    
    set(CMAKE_CXX_STANDARD 11)
    
    aux_source_directory(. DIR_SRCS)
    add_executable(redis_learning ${
        DIR_SRCS})

main.cpp

#include <string>
    #include "RedisConnect.h"
    #include<memory>
    using namespace std;
    
    
    int main()
    {
        
        string key = "mykey";
        string val;
    
        //初始化连接池
        RedisConnect::Setup("127.0.0.1", 6379);
    
        //从连接池中获取一个连接
        shared_ptr<RedisConnect> redis = RedisConnect::Instance();
        if(redis == nullptr || !redis->ping()){
        
            printf("redis connect failed");
            return 0;
        }
    
        //设置一个键值
        redis->set(key, "4r55ewedrfghgfdssd");
        //获取键值内容
        int code = redis->get(key, val);
        if(code != 1){
        
            std::cout << "errorCode:" << redis->getErrorCode() << "\t errorString:" << redis->getErrorString() << "\n";
            return 0;
        }
        std::cout << "get the val " << val << "\n";
    
        //执行expire命令设置超时时间
        redis->execute("expire", key, 60);
    
        //获取超时时间(与ttl(key)方法等价)
        redis->execute("ttl", key);
    
        //调用getStatus方法获取ttl命令执行结果
        printf("超时时间：%d\n", redis->getStatus());
    
        //执行del命令删除键值
        redis->execute("del", key);
    
        //获取分布式锁
        if (redis->lock("lockey"))
        {
        
            puts("获取分布式锁成功");
    
            //释放分布式锁
            if (redis->unlock("lockey"))
            {
        
                puts("释放分布式锁成功");
            }
        }
    
    
        return 0;
    }

# acl\_redis(1.8K⭐) #

[acl学习入门][acl]

整个工程偏向C风格 , C++工程若选择该库，在使用何种风格和多线程字符串等使用方式上会收到一定的约束

# cpp\_redis（355⭐) #

## 项目地址 ##

[https://github.com/Cylix/cpp\_redis–旧（797⭐）][https_github.com_Cylix_cpp_redis_797]  
[https://github.com/cpp-redis/cpp\_redis–新（355⭐）][https_github.com_cpp-redis_cpp_redis_355]

## 概述 ##

> cpp\_redis 是一个C++ 11异步多平台轻量级Reis客户端，支持同步操作、流水线、哨兵和高可用性。

## 依赖 ##

cpp\_redis没有依赖关系。它的唯一要求是C++ 11。

它没有网络模块，因此您可以自由配置自己的模块，或者使用默认模块（tacopie）

# redis-plus-plus（294⭐) #

## 地址 ##

[https://github.com/sewenew/redis-plus-plus ][https_github.com_sewenew_redis-plus-plus]

## 概叙 ##

> 这是一个C++客户端，用于Redis。它是基于**HiRedis**，用C++ 11／C++ 17编写的。

# redisclient（282⭐) #

[ redisclient（282⭐)][redisclient_282]  
Boost.asio based Redis-client header-only library. Simple but powerfull.

This version requires С++11 compiler

1.  [Linux下搭建boost环境，并使用CLion搭建工程][Linux_boost_CLion]
2.  下载

$ git clone https://github.com/nekipelov/redisclient.git
    
    $ cd redisclient && mkdir build && cd build

1.  安装

$  cmake -DCMAKE_BUILD_TYPE=Release -DBOOST_ROOT=boost_include_dir \
    	-DBOOST_LIBRARYDIR=boost_lib_dir ..

当前使用的boost是1.74.0  
![在这里插入图片描述][20201111120456239.png_pic_center]  
[redisclient安装与使用][redisclient]

# Aedis（9⭐) #

[GITHUB][]

Aedis is a redis client designed for

Seamless integration with async code  
Easy and intuitive usage  
To use this library include aedis.hpp in your project. Current dendencies are Boost.Asio and libfmt. As of C++23 this library will have no external dependencies.

$ git clone https://github.com/mzimbres/aedis.git
    $ cd aedis && mkdir build && cd build

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70_pic_center 1]

[redis_CPP]: https://redis.io/clients#c-plus-plus
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70_pic_center]: /images/20221120/c1cd926f3f174bcf9b50a76586c117fc.png
[linux_Redis4]: https://blog.csdn.net/zhizhengguan/article/details/87161928
[20201111105047435.png_pic_center]: /images/20221120/714fecc8c6c1466cae2922c87c43bcd6.png
[C_Redis]: https://www.jianshu.com/p/11f4c7c71953
[https_gitee.com_xungen_redisconnect.git]: https://gitee.com/xungen/redisconnect.git
[20201111135254637.png_pic_center]: /images/20221120/d6d5babde9834bf7aab635dae2d481eb.png
[acl]: https://blog.csdn.net/zhizhengguan/article/details/109636742
[https_github.com_Cylix_cpp_redis_797]: https://github.com/Cylix/cpp_redis
[https_github.com_cpp-redis_cpp_redis_355]: https://github.com/cpp-redis/cpp_redis
[https_github.com_sewenew_redis-plus-plus]: https://github.com/sewenew/redis-plus-plus
[redisclient_282]: https://github.com/nekipelov/redisclient.git
[Linux_boost_CLion]: https://blog.csdn.net/zhizhengguan/article/details/107400509
[20201111120456239.png_pic_center]: /images/20221120/f57a58501a4d4cf7a7859ad105361ceb.png
[redisclient]: https://blog.csdn.net/gripex/article/details/103392239
[GITHUB]: https://github.com/mzimbres/aedis
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70_pic_center 1]: /images/20221120/3db3c2baca3f47aa97074c7ceb91091f.png