redis数据库安装和C++调用

redis安装：

http://www.yiibai.com/redis/redis_environment.html

sudo apt-get update 
sudo apt-get install redis-server

redis相关：

https://www.cnblogs.com/idiotgroup/p/5455282.html

C++ 操作redis

首先安装hiredis依赖库：

git clone https://github.com/redis/hiredis
cd hiredis
make
sudo make install(复制生成的库到/usr/local/lib目录下)
sudo ldconfig /usr/local/lib

接下来新建redis.h：

#ifndef _REDIS_H_
#define _REDIS_H_

#include <iostream>
#include <string.h>
#include <string>
#include <stdio.h>

#include <hiredis/hiredis.h>

class Redis
{
public:

    Redis(){}

    ~Redis()
    {
        this->_connect = NULL;
        this->_reply = NULL;                
    }

    bool connect(std::string host, int port)
    {
        this->_connect = redisConnect(host.c_str(), port);
        if(this->_connect != NULL && this->_connect->err)
        {
            printf("connect error: %s\n", this->_connect->errstr);
            return 0;
        }
        return 1;
    }

    std::string get(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(std::string key, std::string value)
    {
        redisCommand(this->_connect, "SET %s %s", key.c_str(), value.c_str());
    }

private:

    redisContext* _connect;
    redisReply* _reply;

};

#endif  //_REDIS_H_

新建redis.cpp

#include "redis.h"

int main()
{
    Redis *r = new Redis();
    if(!r->connect("127.0.0.1", 6379))
    {
        printf("connect error!\n");
        return 0;
    }
    r->set("name", "Andy");
    printf("Get the name is %s\n", r->get("name").c_str());
    delete r;
    return 0;
}

编写Makefile文件

redis: redis.cpp redis.h
    g++ redis.cpp -o redis -L/usr/local/lib/ -lhiredis

clean:
    rm redis.o redis

进行编译

make

或者命令行执行

g++ redis.cpp -o redis -L/usr/local/lib/ -lhiredis

最后执行：

http://blog.csdn.net/imxiangzi/article/details/52426086

http://blog.csdn.net/shudaqi2010/article/details/53895772

http://blog.csdn.net/zh515858237/article/details/53046671