springboot +redis配置

springboot +redis配置

pom依赖

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

spring boot data redis 的pom依赖

Spring boot yml配置redis的参数

 spring:
 # REDIS (RedisProperties)
 # Redis数据库索引（默认为0）
   redis:
       database: 0
       timeout: 0
 # Redis服务器地址
       host: 127.0.0.1
 # Redis服务器连接端口
       port: 6379
 # Redis服务器连接密码（默认为空）
       password:
 # 连接池最大连接数（使用负值表示没有限制）
       pool:
         max-active: 8
 # 连接池最大阻塞等待时间（使用负值表示没有限制）
         max-wait: -1
 # 连接池中的最大空闲连接
         max-idle: 8
 # 连接池中的最小空闲连接
         min-idle: 0
       cluster:
         max-redirects: 10
         nodes: 127.0.0.1:6080
 # 连接超时时间（毫秒）

spring boot data redis的配置文件（yml）

Spring boot config redis的模板

 @Configuration
 @EnableCaching
 public class RedisCacheConfig {
     @Bean
     public CacheManager cacheManager(RedisTemplate<?, ?> redisTemplate) {
         CacheManager cacheManager = new RedisCacheManager(redisTemplate);
         return cacheManager;
     }

     @Bean
     public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
         RedisTemplate<String, String> redisTemplate = new RedisTemplate<String, String>();
         redisTemplate.setConnectionFactory(factory);
         // key序列化方式;（不然会出现乱码;）,但是如果方法上有Long等非String类型的话，会报类型转换错误；
         // 所以在没有自己定义key生成策略的时候，以下这个代码建议不要这么写，可以不配置或者自己实现ObjectRedisSerializer
         // 或者JdkSerializationRedisSerializer序列化方式;
         RedisSerializer<String> redisSerializer = new StringRedisSerializer();// Long类型不可以会出现异常信息;
         redisTemplate.setKeySerializer(redisSerializer);
         redisTemplate.setHashKeySerializer(redisSerializer);
         return redisTemplate;
     }

 }

spring boot config redis的模板

spring boot 的redis 工具类

 @SuppressWarnings("unchecked")
 @Component
 public class RedisUtil {
     @SuppressWarnings("rawtypes")
     @Autowired
     private RedisTemplate redisTemplate;

     /**
      * 批量删除对应的value
      *
      * @param keys
      */
     public void remove(final String... keys) {
         for (String key : keys) {
             remove(key);
         }
     }

     /**
      * 批量删除key
      *
      * @param pattern
      */
     public void removePattern(final String pattern) {
         Set<Serializable> keys = redisTemplate.keys(pattern);
         if (keys.size() > 0)
             redisTemplate.delete(keys);
     }

     /**
      * 删除对应的value
      *
      * @param key
      */
     public void remove(final String key) {
         if (exists(key)) {
             redisTemplate.delete(key);
         }
     }

     /**
      * 判断缓存中是否有对应的value
      *
      * @param key
      * @return
      */
     public boolean exists(final String key) {
         return redisTemplate.hasKey(key);
     }

     /**
      * 读取缓存
      *
      * @param key
      * @return
      */
     public String get(final String key) {
         Object result = null;
         redisTemplate.setValueSerializer(new StringRedisSerializer());
         ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
         result = operations.get(key);
         if (result == null) {
             return null;
         }
         return result.toString();
     }

     /**
      * 写入缓存
      *
      * @param key
      * @param value
      * @return
      */
     public boolean set(final String key, Object value) {
         boolean result = false;
         try {
             ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
             operations.set(key, value);
             result = true;
         } catch (Exception e) {
             e.printStackTrace();
         }
         return result;
     }

     /**
      * 写入缓存
      *
      * @param key
      * @param value
      * @return
      */
     public boolean set(final String key, Object value, Long expireTime) {
         boolean result = false;
         try {
             ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
             operations.set(key, value);
             redisTemplate.expire(key, expireTime, TimeUnit.SECONDS);
             result = true;
         } catch (Exception e) {
             e.printStackTrace();
         }
         return result;
     }

     public boolean hmset(String key, Map<String, String> value) {
         boolean result = false;
         try {
             redisTemplate.opsForHash().putAll(key, value);
             result = true;
         } catch (Exception e) {
             e.printStackTrace();
         }
         return result;
     }

     public Map<String, String> hmget(String key) {
         Map<String, String> result = null;
         try {
             result = redisTemplate.opsForHash().entries(key);
         } catch (Exception e) {
             e.printStackTrace();
         }
         return result;
     }
 }

spring boot 的redis工具类

基本测试类如下：

 @RunWith(SpringRunner.class)
 @SpringBootTest
 public class RedisUtilTest {
     @Autowired
     private RedisUtil redisUtil;

     @Test
     public void testSet() {
         String key = "key";
         System.out.println(redisUtil.get(key));
         String value = "sdd";
         redisUtil.set(key, value);
         System.out.println(redisUtil.get(key));
     }
 }

redis基本测试类

现在这样就基本能够使用redis了