java操作redis
java调用你需要下载jedis.jar包
下载网址:https://github.com/xetorthio/jedis/downloads
package Redis;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import redis.clients.jedis.Jedis;
public class Demo {
/**
* @param args
*/
public static void main(String[] args) {
//连接redis服务
Jedis jedis = new Jedis("192.168.0.225",6400);
//密码验证-如果你没有设置redis密码可不验证即可使用相关命令
jedis.auth("abcdefg");
//简单的key-value 存储
jedis.set("redis", "myredis");
System.out.println(jedis.get("redis"));
//在原有值得基础上添加,如若之前没有该key,则导入该key
//之前已经设定了redis对应"myredis",此句执行便会使redis对应"myredisyourredis"
jedis.append("redis", "yourredis");
jedis.append("content", "rabbit");
//mset 是设置多个key-value值 参数(key1,value1,key2,value2,...,keyn,valuen)
//mget 是获取多个key所对应的value值 参数(key1,key2,key3,...,keyn) 返回的是个list
jedis.mset("name1","yangw","name2","demon","name3","elena");
System.out.println(jedis.mget("name1","name2","name3"));
//map
Map<String,String> user = new HashMap<String,String>();
user.put("name", "cd");
user.put("password", "123456");
//map存入redis
jedis.hmset("user", user);
//mapkey个数
System.out.println(String.format("len:%d", jedis.hlen("user")));
//map中的所有键值
System.out.println(String.format("keys: %s", jedis.hkeys("user") ));
//map中的所有value
System.out.println(String.format("values: %s", jedis.hvals("user") ));
//取出map中的name字段值
List<String> rsmap = jedis.hmget("user", "name","password");
System.out.println(rsmap);
//删除map中的某一个键值 password
jedis.hdel("user", "password");
System.out.println(jedis.hmget("user", "name", "password"));
//list
jedis.del("listDemo");
System.out.println(jedis.lrange("listDemo", 0, -1));
jedis.lpush("listDemo", "A");
jedis.lpush("listDemo", "B");
jedis.lpush("listDemo", "C");
System.out.println(jedis.lrange("listDemo", 0, -1));
System.out.println(jedis.lrange("listDemo", 0, 1));
//set
jedis.sadd("sname", "wobby");
jedis.sadd("sname", "kings");
jedis.sadd("sname", "demon");
System.out.println(String.format("set num: %d", jedis.scard("sname")));
System.out.println(String.format("all members: %s", jedis.smembers("sname")));
System.out.println(String.format("is member: %B", jedis.sismember("sname", "wobby")));
System.out.println(String.format("rand member: %s", jedis.srandmember("sname")));
//删除一个对象
jedis.srem("sname", "demon");
System.out.println(String.format("all members: %s", jedis.smembers("sname")));
}
}