Redis學習筆記 hiredis（C語言）

redis學習中，c語言通過hiredis開源庫操作redis。

1 hiredis開源**的路徑。和說明文件**：

2 hiredis中部分api使用示例。

#include 

#include "hiredis.h"
const
char* redis_ip = "127.0.0.1";
const
int   redis_port = 6380;
//connect redis
rediscontext* getrediscontext();
//free redis connect
void freerediscontext(rediscontext *rc);
//test redis key
int testrediskey(rediscontext *rc);
//string type 
void testredisstring(rediscontext *rc);
//prase redisreplay
int praseredisreply(redisreply*& rediscmdreply, const
char*& rediscmd);
//main function
int main(int argc, char* argv)
//free redis connect
freerediscontext(rc);
return0;}
//get redis context
rediscontext* getrediscontext()
else
redisfree(rc);
return null;
}printf("connect redis ok\n");
return rc;
}//free redis context
void freerediscontext(rediscontext *c)
//redis key operate
int testrediskey(rediscontext *rc)
//keys * command
const
char* keyscommand = "keys *";
redisreply* rediscmdreply = (redisreply*)rediscommand(rc, keyscommand);
//parse redis reply
int res = praseredisreply(rediscmdreply, keyscommand);
if(res != 0)
//exists command
const
char* existscommand = "exists bar";
rediscmdreply = (redisreply*)rediscommand(rc, existscommand);
//parse redis reply
res = praseredisreply(rediscmdreply, existscommand);
if(res != 0)
const
char* existshaocommand = "exists hao";
rediscmdreply = (redisreply*)rediscommand(rc, existshaocommand);
//parse redis reply
res = praseredisreply(rediscmdreply, existshaocommand);
if(res != 0)
//delete key command
const
char* delkeycomman = "del bar";
rediscmdreply = (redisreply*)rediscommand(rc, delkeycomman);
//parse redis reply
res = praseredisreply(rediscmdreply, delkeycomman);
if(res != 0)
rediscmdreply = (redisreply*)rediscommand(rc, keyscommand);
//parse redis reply
res = praseredisreply(rediscmdreply, keyscommand);
if(res != 0)
//free redisreply
freereplyobject(rediscmdreply);
return0;}
//string type 
void testredisstring(rediscontext *rc)
//prase redis reply
int praseredisreply(redisreply*& rediscmdreply, const
char*& rediscmd)
if(null == rediscmdreply)
printf("redisreply type:%d\n", rediscmdreply->type);
int ret = 0;
switch(rediscmdreply->type)
case redis_reply_array:
ret = 0;
break;
}case redis_reply_integer:
case redis_reply_nil:
case redis_reply_status:
case redis_reply_error:
default:
}return ret;
}

使用hiredis的makefile檔案編譯出hiredis的靜態庫（命令make static）。

檔案目錄

hiredis makefile testredis.cpp

自己的makefile檔案內容：

#g++

cxx = g++ -g -wall
#redis dir  
hredis_dir = ./hiredis
#release dir
release_dir = ./release
#cflags
cflags = -i./ -i
$(hredis_dir)
#terg
targets = testredis
#object
objs =  ./testredis.o
all:
$(targets)
./testredis.o: ./testredis.cpp $(
hredis_dir)/hiredis.h
$(cxx)  $(
cflags) -c ./testredis.cpp -o $@
$(targets):
$(objs) $(
hredis_dir)/libhiredis.a
test -d $(
release_dir) || mkdir -p $(
release_dir)
$(cxx) -o $@
$^    cp $@
$(release_dir)
clean:
rm -f $(
targets) $(
release_dir)/* ./*.o

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