Redis在springboot中的使用教程

2024-07-14 08:41:16

字體：大中小

來源：轉載

供稿：網友

依賴如下：

<dependency>  <groupId>org.springframework.boot</groupId>  <artifactId>spring-boot-starter-data-redis</artifactId></dependency>

配置文件如下：

spring:redis:  open: true # 是否開啟redis緩存 true開啟  false關閉  database: 0  host: 47.104.208.124  port: 6378  password: lf.1228  # 密碼（默認為空）  timeout: 6000 # 連接超時時長（毫秒）  pool:    max-active: 1000 # 連接池最大連接數（使用負值表示沒有限制）    max-wait: -1   # 連接池最大阻塞等待時間（使用負值表示沒有限制）    max-idle: 10   # 連接池中的最大空閑連接    min-idle: 5    # 連接池中的最小空閑連接

RedisConfig類：

@Configurationpublic class RedisConfig {  @Autowired  private RedisConnectionFactory factory;  @Bean  public RedisTemplate<String, Object> redisTemplate() {    RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();    redisTemplate.setKeySerializer(new StringRedisSerializer());    redisTemplate.setHashKeySerializer(new StringRedisSerializer());    redisTemplate.setHashValueSerializer(new StringRedisSerializer());    redisTemplate.setValueSerializer(new StringRedisSerializer());    redisTemplate.setConnectionFactory(factory);    return redisTemplate;  }  @Bean  public HashOperations<String, String, Object> hashOperations(RedisTemplate<String, Object> redisTemplate) {    return redisTemplate.opsForHash();  }  @Bean  public ValueOperations<String, String> valueOperations(RedisTemplate<String, String> redisTemplate) {    return redisTemplate.opsForValue();  }  @Bean  public ListOperations<String, Object> listOperations(RedisTemplate<String, Object> redisTemplate) {    return redisTemplate.opsForList();  }  @Bean  public SetOperations<String, Object> setOperations(RedisTemplate<String, Object> redisTemplate) {    return redisTemplate.opsForSet();  }  @Bean  public ZSetOperations<String, Object> zSetOperations(RedisTemplate<String, Object> redisTemplate) {    return redisTemplate.opsForZSet();  }}

RedisUtils如下：

@Componentpublic class RedisUtils {  @Autowired  private RedisTemplate<String, Object> redisTemplate;  @Autowired  private ValueOperations<String, String> valueOperations;  @Autowired  private HashOperations<String, String, Object> hashOperations;  @Autowired  private ListOperations<String, Object> listOperations;  @Autowired  private SetOperations<String, Object> setOperations;  @Autowired  private ZSetOperations<String, Object> zSetOperations;  /** 默認過期時長，單位：秒 */  public final static long DEFAULT_EXPIRE = 60 * 60 * 24;  /** 不設置過期時長 */  public final static long NOT_EXPIRE = -1;  private final static Gson gson = new Gson();  public void set(String key, Object value, long expire){    valueOperations.set(key, toJson(value));    if(expire != NOT_EXPIRE){      redisTemplate.expire(key, expire, TimeUnit.SECONDS);    }  }  public void set(String key, Object value){    set(key, value, DEFAULT_EXPIRE);  }  public <T> T get(String key, Class<T> clazz, long expire) {    String value = valueOperations.get(key);    if(expire != NOT_EXPIRE){      redisTemplate.expire(key, expire, TimeUnit.SECONDS);    }    return value == null ? null : fromJson(value, clazz);  }  public <T> T get(String key, Class<T> clazz) {    return get(key, clazz, NOT_EXPIRE);  }  public String get(String key, long expire) {    String value = valueOperations.get(key);    if(expire != NOT_EXPIRE){      redisTemplate.expire(key, expire, TimeUnit.SECONDS);    }    return value;  }  public String get(String key) {    return get(key, NOT_EXPIRE);  }  public void delete(String key) {    redisTemplate.delete(key);  }  /**   * Object轉成JSON數據   */  private String toJson(Object object){    if(object instanceof Integer || object instanceof Long || object instanceof Float ||        object instanceof Double || object instanceof Boolean || object instanceof String){      return String.valueOf(object);    }    return gson.toJson(object);  }  /**   * JSON數據，轉成Object   */  private <T> T fromJson(String json, Class<T> clazz){    return gson.fromJson(json, clazz);  }}

springboot如何封裝redis：

RedisTemplate

所在包： org.springframework.data.redis.core

作用：redis模板，redis事務，序列化支持，操作redis方法

JedisConnectionFactory

所在包：org.springframework.data.redis.connection.jedis
作用：redis連接工廠類，創建redis連接池等

RedisAutoConfiguration

所在包：org.springframework.boot.autoconfigure.data.redis
作用：將redis配置文件相關信息注入工廠類

RedisProperties

所在包：org.springframework.boot.autoconfigure.data.redis
作用：redis連接基礎類通過@ConfigurationProperties注解將配置信息注入屬性

總結

以上所述是小編給大家介紹的Redis在springboot中的使用教程，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對VeVb武林網網站的支持！