Redis

private Jedis jedis;

@BeforeEach
void setUp() {
    // 1.建立连接
    // jedis = new Jedis("192.168.150.101", 6379);
    jedis = JedisConnectionFactory.getJedis();
    // 2.设置密码
    jedis.auth("123321");
    // 3.选择库
    jedis.select(0);
}

@Test
void testString() {
    // 存入数据
    String result = jedis.set("name", "虎哥");
    System.out.println("result = " + result);
    // 获取数据
    String name = jedis.get("name");
    System.out.println("name = " + name);
}

@Test
void testHash() {
    // 插入hash数据
    jedis.hset("user:1", "name", "Jack");
    jedis.hset("user:1", "age", "21");

    // 获取
    Map<String, String> map = jedis.hgetAll("user:1");
    System.out.println(map);
}

@AfterEach
void tearDown() {
    if (jedis != null) {
        jedis.close();
    }
}

public class JedisConnectionFacotry {

     private static final JedisPool jedisPool;

     static {
         //配置连接池
         JedisPoolConfig poolConfig = new JedisPoolConfig();
         poolConfig.setMaxTotal(8);
         poolConfig.setMaxIdle(8);
         poolConfig.setMinIdle(0);
         poolConfig.setMaxWaitMillis(1000);
         //创建连接池对象
         jedisPool = new JedisPool(poolConfig,
                 "192.168.150.101",6379,1000,"123321");
     }

     public static Jedis getJedis(){
          return jedisPool.getResource();
     }
}

 @BeforeEach
 void setUp(){
     //建立连接
     /*jedis = new Jedis("127.0.0.1",6379);*/
     jedis = JedisConnectionFacotry.getJedis();
      //选择库
     jedis.select(0);
 }

@AfterEach
 void tearDown() {
     if (jedis != null) {
         jedis.close();
     }
 }

@SpringBootTest
class RedisDemoApplicationTests {

    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    @Test
    void testString() {
        // 写入一条String数据
        redisTemplate.opsForValue().set("name", "虎哥");
        // 获取string数据
        Object name = redisTemplate.opsForValue().get("name");
        System.out.println("name = " + name);
    }
}

@Configuration
public class RedisConfig {

    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory connectionFactory){
        // 创建RedisTemplate对象
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        // 设置连接工厂
        template.setConnectionFactory(connectionFactory);
        // 创建JSON序列化工具
        GenericJackson2JsonRedisSerializer jsonRedisSerializer = 
            							new GenericJackson2JsonRedisSerializer();
        // 设置Key的序列化
        template.setKeySerializer(RedisSerializer.string());
        template.setHashKeySerializer(RedisSerializer.string());
        // 设置Value的序列化
        template.setValueSerializer(jsonRedisSerializer);
        template.setHashValueSerializer(jsonRedisSerializer);
        // 返回
        return template;
    }
}

@SpringBootTest  
 class RedisStringTests {  
 ​  
     @Autowired  
     private StringRedisTemplate stringRedisTemplate;  
 ​  
     @Test  
     void testString() {  
         // 写入一条String数据  
         stringRedisTemplate.opsForValue().set("verify:phone:13600527634", "124143");  
         // 获取string数据  
         Object name = stringRedisTemplate.opsForValue().get("name");  
         System.out.println("name = " + name);  
     }  
 ​  
     private static final ObjectMapper mapper = new ObjectMapper();  
 ​  
     @Test  
     void testSaveUser() throws JsonProcessingException {  
         // 创建对象  
         User user = new User("虎哥", 21);  
         // 手动序列化  
         String json = mapper.writeValueAsString(user);  
         // 写入数据  
         stringRedisTemplate.opsForValue().set("user:200", json);  
 ​  
         // 获取数据  
         String jsonUser = stringRedisTemplate.opsForValue().get("user:200");  
         // 手动反序列化  
         User user1 = mapper.readValue(jsonUser, User.class);  
         System.out.println("user1 = " + user1);  
     }  
 ​  
 }

@SpringBootTest
class RedisStringTests {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;


    @Test
    void testHash() {
        stringRedisTemplate.opsForHash().put("user:400", "name", "虎哥");
        stringRedisTemplate.opsForHash().put("user:400", "age", "21");

        Map<Object, Object> entries = stringRedisTemplate.opsForHash().entries("user:400");
        System.out.println("entries = " + entries);
    }
}

Jedis jedis = new Jedis("127.0.0.1",6379);
System.out.println("连接成功");

public class TestPassword {
  public static void main(String[] args) {
    Jedis jedis = new Jedis("127.0.0.1", 6379);
    //验证密码，如果没有设置密码这段代码省略
//    jedis.auth("password");
    jedis.connect(); //连接
    jedis.disconnect(); //断开连接
    jedis.flushAll(); //清空所有的key
 }
}

public class TestKey {
  public static void main(String[] args) {
    Jedis jedis = new Jedis("127.0.0.1", 6379);
    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','kuangshen'>的键值
对："+jedis.set("username", "kuangshen"));
    System.out.println("新增<'password','password'>的键值
对："+jedis.set("password", "password"));
    System.out.print("系统中所有的键如下：");
    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("查看键username所存储的值的类
型："+jedis.type("username"));
    System.out.println("随机返回key空间的一个："+jedis.randomKey());
    System.out.println("重命名key："+jedis.rename("username","name"));
    System.out.println("取出改后的name："+jedis.get("name"));
    System.out.println("按索引查询："+jedis.select(0));
    System.out.println("删除当前选择数据库中的所有key："+jedis.flushDB());
    System.out.println("返回当前数据库中key的数目："+jedis.dbSize());
    System.out.println("删除所有数据库中的所有key："+jedis.flushAll());
 }
}

public class TestString {
  public static void main(String[] args) {
    Jedis jedis = new Jedis("127.0.0.1", 6379);
    jedis.flushDB();
    System.out.println("===========增加数据===========");
    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("修改key1:"+jedis.set("key1", "value1Changed"));
    System.out.println("获取key1的值："+jedis.get("key1"));
    System.out.println("在key3后面加入值："+jedis.append("key3", "End"));
    System.out.println("key3的值："+jedis.get("key3"));
    System.out.println("增加多个键值对："
                       +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("key01","key02"));
    System.out.println("获取多个键值对："+jedis.mget("key01","key02","key03"));
    jedis.flushDB();
    System.out.println("===========新增键值对防止覆盖原先值==============");
    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("===========新增键值对并设置有效时间=============");
    System.out.println(jedis.setex("key3", 2, "value3"));
    System.out.println(jedis.get("key3"));
    try {
      TimeUnit.SECONDS.sleep(3);
   } catch (InterruptedException e) {
      e.printStackTrace();
   }
    System.out.println(jedis.get("key3"));
    System.out.println("===========获取原值，更新为新值==========");
    System.out.println(jedis.getSet("key2", "key2GetSet"));
    System.out.println(jedis.get("key2"));
    System.out.println("获得key2的值的字串："+jedis.getrange("key2", 2,
4));
 }
}

public class TestList {
  public static void main(String[] args) {
    Jedis jedis = new Jedis("127.0.0.1", 6379);
    jedis.flushDB();
    System.out.println("===========添加一个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,end为-1表示查询全部
      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（有重复时），后add进去的值先被删，类似于出栈
    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添加元素，从列表右端，与lpush相对应："+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("修改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));
 }
}

public class TestSet {
  public static void main(String[] args) {
    Jedis jedis = new Jedis("127.0.0.1", 6379);
    jedis.flushDB();
    System.out.println("============向集合中添加元素（不重复）============");
    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("随机的移除集合中的一个元素："+jedis.spop("eleSet"));
    System.out.println("随机的移除集合中的一个元素："+jedis.spop("eleSet"));
    System.out.println("eleSet的所有元素为："+jedis.smembers("eleSet"));
    System.out.println("eleSet中包含元素的个数："+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"));//移到集合元素
    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("============集合运算=================");
    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的交集:"+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
    jedis.sinterstore("eleSet4","eleSet1","eleSet2");//求交集并将交集保存到
dstkey的集合
    System.out.println("eleSet4中的元素："+jedis.smembers("eleSet4"));
 }
}

public class TestHash {
  public static void main(String[] args) {
    Jedis jedis = new Jedis("127.0.0.1", 6379);
    jedis.flushDB();
    Map<String,String> map = new HashMap<>();
    map.put("key1","value1");
    map.put("key2","value2");
    map.put("key3","value3");
    map.put("key4","value4");
    //添加名称为hash（key）的hash元素
    jedis.hmset("hash",map);
    //向名称为hash的hash中添加key为key5，value为value5元素
    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"));//returnSet<String>
    System.out.println("散列hash的所有值为："+jedis.hvals("hash"));//returnList<String>
    System.out.println("将key6保存的值加上一个整数，如果key6不存在则添加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保存的值加上一个整数，如果key6不存在则添加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"));
 }
}