关于java:jedis测试

6次阅读

共计 9509 个字符，预计需要花费 24 分钟才能阅读完成。

键操作 

@Test public void testKey() throws InterruptedException
{System.out.println("清空数据："+jedis.flushDB());
    System.out.println("判断某个键是否存在："+jedis.exists("username"));
    System.out.println("新增 <'username','zzh'> 的键值对："+jedis.set("username", "zzh"));
    System.out.println(jedis.exists("name"));
    System.out.println("新增 <'password','password'> 的键值对："+jedis.set("password", "password"));
    System.out.print("零碎中所有的键如下：");
    Set<String> keys = jedis.keys("*");
    System.out.println(keys);
    System.out.println("删除键 password:"+jedis.del("password"));
    System.out.println("判断键 password 是否存在："+jedis.exists("password"));
    System.out.println("设置键 username 的过期工夫为 5s:"+jedis.expire("username", 5));
    TimeUnit.SECONDS.sleep(2);
    System.out.println("查看键 username 的残余生存工夫："+jedis.ttl("username"));
    System.out.println("移除键 username 的生存工夫："+jedis.persist("username"));
    System.out.println("查看键 username 的残余生存工夫："+jedis.ttl("username"));
    System.out.println("查看键 username 所存储的值的类型："+jedis.type("username"));
}

字节串 

@Test public void testString() throws InterruptedException
{jedis.flushDB();
    System.out.println("=========== 减少数据 ===========");
    System.out.println(jedis.set("key1","value1"));
    System.out.println(jedis.set("key2","value2"));
    System.out.println(jedis.set("key3", "value3"));
    System.out.println("删除键 key2:"+jedis.del("key2"));
    System.out.println("获取键 key2:"+jedis.get("key2"));
    System.out.println("批改 key1:"+jedis.set("key1", "value1Changed"));
    System.out.println("获取 key1 的值："+jedis.get("key1"));
    System.out.println("在 key3 前面退出值："+jedis.append("key3", "End"));
    System.out.println("key3 的值："+jedis.get("key3"));
    System.out.println("减少多个键值对："+jedis.mset("key01","value01","key02","value02","key03","value03"));
    System.out.println("获取多个键值对："+jedis.mget("key01","key02","key03"));
    System.out.println("获取多个键值对："+jedis.mget("key01","key02","key03","key04"));
    System.out.println("删除多个键值对："+jedis.del(new String[]{"key01","key02"}));
    System.out.println("获取多个键值对："+jedis.mget("key01","key02","key03"));
 
    jedis.flushDB();
    System.out.println("=========== 新增键值对避免笼罩原先值 ==============");
    System.out.println(jedis.setnx("key1", "value1"));
    System.out.println(jedis.setnx("key2", "value2"));
    System.out.println(jedis.setnx("key2", "value2-new"));
    System.out.println(jedis.get("key1"));
    System.out.println(jedis.get("key2"));
 
    System.out.println("=========== 新增键值对并设置无效工夫 =============");
    System.out.println(jedis.setex("key3", 2, "value3"));
    System.out.println(jedis.get("key3"));
    TimeUnit.SECONDS.sleep(3);
    System.out.println(jedis.get("key3"));
 
    System.out.println("=========== 获取原值，更新为新值 ==========");//GETSET is an atomic set this value and return the old value command.
    System.out.println(jedis.getSet("key2", "key2GetSet"));
    System.out.println(jedis.get("key2"));
 
    System.out.println("取得 key2 的值的字串："+jedis.getrange("key2", 2, 4));
}

整数和浮点数 

@Test public void testNumber()
{jedis.flushDB();
    jedis.set("key1", "1");
    jedis.set("key2", "2");
    jedis.set("key3", "2.3");
    System.out.println("key1 的值："+jedis.get("key1"));
    System.out.println("key2 的值："+jedis.get("key2"));
    System.out.println("key1 的值加 1："+jedis.incr("key1"));
    System.out.println("获取 key1 的值："+jedis.get("key1"));
    System.out.println("key2 的值减 1："+jedis.decr("key2"));
    System.out.println("获取 key2 的值："+jedis.get("key2"));
    System.out.println("将 key1 的值加上整数 5："+jedis.incrBy("key1", 5));
    System.out.println("获取 key1 的值："+jedis.get("key1"));
    System.out.println("将 key2 的值减去整数 5："+jedis.decrBy("key2", 5));
    System.out.println("获取 key2 的值："+jedis.get("key2"));
}

list 列表 

@Test public void testList() 
{jedis.flushDB(); 
System.out.println(“=========== 增加一个 list===========”); 
jedis.lpush(“collections”,“ArrayList”,“Vector”,“Stack”,“HashMap”,“WeakHashMap”,“LinkedHashMap”); 
jedis.lpush(“collections”,“HashSet”); 
jedis.lpush(“collections”,“TreeSet”); 
jedis.lpush(“collections”,“TreeMap”); 
System.out.println(“collections 的内容：”+jedis.lrange(“collections”, 0, -1));//- 1 代表倒数第一个元素，- 2 代表倒数第二个元素 
System.out.println(“collections 区间 0 - 3 的元素：”+jedis.lrange(“collections”,0,3)); 
System.out.println(“===============================”); 
// 删除列表指定的值，第二个参数为删除的个数（有反复时），后 add 进去的值先被删，相似于出栈 
System.out.println(“删除指定元素个数：”+jedis.lrem(“collections”, 2,“HashMap”)); 
System.out.println(“collections 的内容：”+jedis.lrange(“collections”, 0, -1)); 
System.out.println(“删除下表 0 - 3 区间之外的元素：”+jedis.ltrim(“collections”, 0, 3)); 
System.out.println(“collections 的内容：”+jedis.lrange(“collections”, 0, -1)); 
System.out.println(“collections 列表出栈（左端）：”+jedis.lpop(“collections”)); 
System.out.println(“collections 的内容：”+jedis.lrange(“collections”, 0, -1)); 
System.out.println(“collections 增加元素，从列表右端，与 lpush 绝对应：”+jedis.rpush(“collections”,“EnumMap”)); 
System.out.println(“collections 的内容：”+jedis.lrange(“collections”, 0, -1)); 
System.out.println(“collections 列表出栈（右端）：”+jedis.rpop(“collections”)); 
System.out.println(“collections 的内容：”+jedis.lrange(“collections”, 0, -1)); 
System.out.println(“批改 collections 指定下标 1 的内容：”+jedis.lset(“collections”, 1,“LinkedArrayList”)); 
System.out.println(“collections 的内容：”+jedis.lrange(“collections”, 0, -1)); 
System.out.println(“===============================”); 
System.out.println(“collections 的长度：”+jedis.llen(“collections”)); 
System.out.println(“获取 collections 下标为 2 的元素：”+jedis.lindex(“collections”, 2)); 
System.out.println(“===============================”); 
jedis.lpush(“sortedList”,“3”,”6”,”2”,”0”,”7”,”4”); 
System.out.println(“sortedList 排序前：”+jedis.lrange(“sortedList”, 0, -1)); 
System.out.println(jedis.sort(“sortedList”)); 
System.out.println(“sortedList 排序后：”+jedis.lrange(“sortedList”, 0, -1)); 
}

Set

@Test public void testSet()
{jedis.flushDB();
    System.out.println("============ 向汇合中增加元素 ============");
    System.out.println(jedis.sadd("eleSet", "e1","e2","e4","e3","e0","e8","e7","e5"));
    System.out.println(jedis.sadd("eleSet", "e6"));
    System.out.println(jedis.sadd("eleSet", "e6"));
    System.out.println("eleSet 的所有元素为："+jedis.smembers("eleSet"));
    System.out.println("删除一个元素 e0："+jedis.srem("eleSet", "e0"));
    System.out.println("eleSet 的所有元素为："+jedis.smembers("eleSet"));
    System.out.println("删除两个元素 e7 和 e6："+jedis.srem("eleSet", "e7","e6"));
    System.out.println("eleSet 的所有元素为："+jedis.smembers("eleSet"));
    System.out.println("随机的移除汇合中的一个元素："+jedis.spop("eleSet"));
    System.out.println("随机的移除汇合中的一个元素："+jedis.spop("eleSet"));
    System.out.println("eleSet 的所有元素为："+jedis.smembers("eleSet"));
    System.out.println("eleSet 中蕴含元素的个数："+jedis.scard("eleSet"));
    System.out.println("e3 是否在 eleSet 中："+jedis.sismember("eleSet", "e3"));
    System.out.println("e1 是否在 eleSet 中："+jedis.sismember("eleSet", "e1"));
    System.out.println("e1 是否在 eleSet 中："+jedis.sismember("eleSet", "e5"));
    System.out.println("=================================");
    System.out.println(jedis.sadd("eleSet1", "e1","e2","e4","e3","e0","e8","e7","e5"));
    System.out.println(jedis.sadd("eleSet2", "e1","e2","e4","e3","e0","e8"));
    System.out.println("将 eleSet1 中删除 e1 并存入 eleSet3 中："+jedis.smove("eleSet1", "eleSet3", "e1"));
    System.out.println("将 eleSet1 中删除 e2 并存入 eleSet3 中："+jedis.smove("eleSet1", "eleSet3", "e2"));
    System.out.println("eleSet1 中的元素："+jedis.smembers("eleSet1"));
    System.out.println("eleSet3 中的元素："+jedis.smembers("eleSet3"));
    System.out.println("============ 汇合运算 =================");
    System.out.println("eleSet1 中的元素："+jedis.smembers("eleSet1"));
    System.out.println("eleSet2 中的元素："+jedis.smembers("eleSet2"));
    System.out.println("eleSet1 和 eleSet2 的交加:"+jedis.sinter("eleSet1","eleSet2"));
    System.out.println("eleSet1 和 eleSet2 的并集:"+jedis.sunion("eleSet1","eleSet2"));
    System.out.println("eleSet1 和 eleSet2 的差集:"+jedis.sdiff("eleSet1","eleSet2"));//eleSet1 中有，eleSet2 中没有
}

散列 Map

@Test public void testHash()
{jedis.flushDB();
    Map<String,String> map = new HashMap<>();
    map.put("key1","value1");
    map.put("key2","value2");
    map.put("key3","value3");
    map.put("key4","value4");
    jedis.hmset("hash",map);
    jedis.hset("hash", "key5", "value5");
    System.out.println("散列 hash 的所有键值对为："+jedis.hgetAll("hash"));//return Map<String,String>
    System.out.println("散列 hash 的所有键为："+jedis.hkeys("hash"));//return Set<String>
    System.out.println("散列 hash 的所有值为："+jedis.hvals("hash"));//return List<String>
    System.out.println("将 key6 保留的值加上一个整数，如果 key6 不存在则增加 key6："+jedis.hincrBy("hash", "key6", 6));
    System.out.println("散列 hash 的所有键值对为："+jedis.hgetAll("hash"));
    System.out.println("将 key6 保留的值加上一个整数，如果 key6 不存在则增加 key6："+jedis.hincrBy("hash", "key6", 3));
    System.out.println("散列 hash 的所有键值对为："+jedis.hgetAll("hash"));
    System.out.println("删除一个或者多个键值对："+jedis.hdel("hash", "key2"));
    System.out.println("散列 hash 的所有键值对为："+jedis.hgetAll("hash"));
    System.out.println("散列 hash 中键值对的个数："+jedis.hlen("hash"));
    System.out.println("判断 hash 中是否存在 key2："+jedis.hexists("hash","key2"));
    System.out.println("判断 hash 中是否存在 key3："+jedis.hexists("hash","key3"));
    System.out.println("获取 hash 中的值："+jedis.hmget("hash","key3"));
    System.out.println("获取 hash 中的值："+jedis.hmget("hash","key3","key4"));
}

有序汇合 Zset

@Test public void testSortedSet()
{jedis.flushDB();
    Map<Double,String> map = new HashMap<>();
    map.put(1.2,"key2");
    map.put(4.0, "key3");
    map.put(5.0,"key4");
    map.put(0.2,"key5");
    System.out.println(jedis.zadd("zset", 3,"key1"));
    System.out.println(jedis.zadd("zset",map));
    System.out.println("zset 中的所有元素："+jedis.zrange("zset", 0, -1));
    System.out.println("zset 中的所有元素："+jedis.zrangeWithScores("zset", 0, -1));
    System.out.println("zset 中的所有元素："+jedis.zrangeByScore("zset", 0,100));
    System.out.println("zset 中的所有元素："+jedis.zrangeByScoreWithScores("zset", 0,100));
    System.out.println("zset 中 key2 的分值："+jedis.zscore("zset", "key2"));
    System.out.println("zset 中 key2 的排名："+jedis.zrank("zset", "key2"));
    System.out.println("删除 zset 中的元素 key3："+jedis.zrem("zset", "key3"));
    System.out.println("zset 中的所有元素："+jedis.zrange("zset", 0, -1));
    System.out.println("zset 中元素的个数："+jedis.zcard("zset"));
    System.out.println("zset 中分值在 1 - 4 之间的元素的个数："+jedis.zcount("zset", 1, 4));
    System.out.println("key2 的分值加上 5："+jedis.zincrby("zset", 5, "key2"));
    System.out.println("key3 的分值加上 4："+jedis.zincrby("zset", 4, "key3"));
    System.out.println("zset 中的所有元素："+jedis.zrange("zset", 0, -1));
}
正文完
java
发表至： java
2022-04-06
 0
关于java:为什么-Spring-提供的-Redis-插件中的-setIfAbsent-方法调用的是-set-命令
关于java:IntelliJ-IDEA-老炮还没用过-Stream-Trace-功能
springCloud学习2服务发现
[闹着玩-2]spring-mvc 主要流程

站内搜索

-「」