redis数据库c语言接口

git clone https://github.com/redis/hiredis[/code]编译安装： 
make
make install

下面是c语言接口代码redisrun.c

#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>
#include <memory.h>
#include <hiredis/hiredis.h>

void RedisGet(char* key){
        redisContext* c = redisConnect("192.168.3.242", 7000);
        if(c->err){
                redisFree(c);
                printf("Connect to redisServer faile\n");
                return ;
        }
        printf("Connect to redisServer Success, ready to Get\n");

        char command[100] = "get ";
        strcat(command, key);
        redisReply* r = (redisReply*)redisCommand(c, command);
        if ( r->type != REDIS_REPLY_STRING){
                printf("Failed to execute command[%s]\n",command);
                freeReplyObject(r);
                redisFree(c);
                return;
        }
        printf("The value of '%s' is %s\n", key, r->str);
        freeReplyObject(r);

        redisFree(c);

}

void RedisPut(char* key, char* value){
        redisContext* c = redisConnect("192.168.3.242", 7000);
        if(c->err){   
                redisFree(c);
                printf("Connect to redisServer faile\n");
                return ;
        }       
        printf("Connect to redisServer Success, ready to Put\n");
        
        
        char command[1000] = "set ";
        strcat(command, key);
        strcat(command," ");
        strcat(command, value);
        redisReply* r = (redisReply*)redisCommand(c, command);
        if(NULL == r){  
                printf("Execut command failure\n");
                redisFree(c);  
                return;  
        }       
        if( !(r->type == REDIS_REPLY_STATUS && strcasecmp(r->str,"OK")==0)){
                printf("Failed to execute command[%s]\n",command);  
                freeReplyObject(r);  
                redisFree(c);  
                return;  
        }       
        freeReplyObject(r);
        
        printf("Succeed to execute command[%s]\n", command);
        redisFree(c);  
} 

struct  SFCOrder{
int  SFCid;
int  SFCNumber;
int  SFClist[10];
};

int struct_to_str(char **dest, struct SFCOrder *pHead)
{
unsigned int size = 0;
if (dest == NULL || pHead == NULL)
return -1;
size = 128 + 13 * sizeof(int) ;
*dest = (char *)malloc(size);
if (*dest == NULL)
return -2;
memset(*dest, 0, size);
sprintf(*dest,
"SFClist[1]=%d,"
"SFClist[2]=%d,"
"SFClist[3]=%d,"
"SFClist[4]=%d,"
"SFClist[5]=%d"
return 0;
}

int str_to_struct(char *str, struct SFCOrder **pHead)
{
if (str == NULL || pHead == NULL)
return -1;

*pHead = (struct SFCOrder *)malloc(sizeof(struct SFCOrder));
if (*pHead == NULL)
return -2;

memset(*pHead, 0, sizeof(struct SFCOrder));

sscanf(str,
"SFCid=%d,"
"SFCNumber=%d,"
"SFClist[1]=%d,"
"SFClist[2]=%d,"
"SFClist[3]=%d,"
"SFClist[4]=%d,"
"SFClist[5]=%d"
return 0;
}

int main(int argc, char *argv[])
{
struct SFCOrder head_a;
struct SFCOrder *p = NULL;
char *str = NULL;
int res;

head_a.SFCid = 6;
head_a.SFCNumber = 4;
head_a.SFClist[1] = 2;
head_a.SFClist[2] = 3;
head_a.SFClist[3] = 4;
head_a.SFClist[4] = 0;
head_a.SFClist[5] = 0;

res = struct_to_str(&str, &head_a);
if (res != 0)
{
printf("Failed to execute struct_to_str");
return -1;
}

char* key = "SFC6";
char* value = str;
RedisPut(key, value);
RedisGet(key);

res = str_to_struct(str, &p);
if (res != 0)
{
free(str);
str = NULL;
}

free(p);
p = NULL;

printf("succuss\n");
return 0;
}


-

编译上面代码：

gcc redisrun.c -o redisrun -lhiredis
运行代码：

./redisrun
这时会遇到下面问题：

./redis: error while loading shared libraries: libhiredis.so.0.13: cannot open shared object file: No such file or directory
这是因为系统找不到动态库的问题，需要检查/etc/ld.so.conf文件中是否包含需要的动态库目录（如/usr/local/lib），如果没有进行添加。之后执行sudo /sbin/ldconfig，更新系统动态库配置

此时在运行程序即可，显示：



redis数据库c语言接口测试完毕