Spring Redis（2）数据访问

╰+哭是因爲堅強的太久メ 2022-07-03 23:39 75阅读 0赞

# Redis数据访问 #

### RedisTemplate ###

##### Redis主要操作接口 #####

<table> 
 <thead> 
  <tr> 
   <th>接口</th> 
   <th>作用</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td><strong>基本类型操作</strong></td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>ValueOperations</td> 
   <td>Redis string操作</td> 
  </tr> 
  <tr> 
   <td>ListOperations</td> 
   <td>Redis list 操作</td> 
  </tr> 
  <tr> 
   <td>SetOperations</td> 
   <td>Redis set 操作</td> 
  </tr> 
  <tr> 
   <td>ZSetOperations</td> 
   <td>Redis zset 操作</td> 
  </tr> 
  <tr> 
   <td>HashOperations</td> 
   <td>Redis hash 操作</td> 
  </tr> 
  <tr> 
   <td>HyperLogLogOperations</td> 
   <td>Redis HyperLogLog operations like (pfadd, pfcount,…)</td> 
  </tr> 
  <tr> 
   <td>GeoOperations</td> 
   <td>Redis geospatial operations like GEOADD, GEORADIUS,…)</td> 
  </tr> 
  <tr> 
   <td><strong>批量操作</strong></td> 
   <td>-</td> 
  </tr> 
  <tr> 
   <td>BoundValueOperations</td> 
   <td>Redis string (or value) key批量操</td> 
  </tr> 
  <tr> 
   <td>BoundListOperations</td> 
   <td>Redis list key 批量操</td> 
  </tr> 
  <tr> 
   <td>BoundSetOperations</td> 
   <td>Redis set key 批量操</td> 
  </tr> 
  <tr> 
   <td>BoundZSetOperations</td> 
   <td>Redis zset (or sorted set) key 批量操</td> 
  </tr> 
  <tr> 
   <td>BoundHashOperations</td> 
   <td>Redis hash key 批量操</td> 
  </tr> 
  <tr> 
   <td>BoundGeoOperations</td> 
   <td>Redis key bound geospatial operations.</td> 
  </tr> 
 </tbody> 
</table>

##### 定义RedisTemplate #####

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" p:use-pool="true"/>  <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate" p:connection-factory-ref="jedisConnectionFactory"/> ... </beans>

@RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration({ "/spring/spring-context.xml" })
    public class RedisTemplateTest { 
    
        // inject the actual template
        @Autowired
        @Qualifier("redisTemplate")
        private RedisTemplate<String, String> redisTemplate;
    
        // inject the template as ListOperations
        @Resource(name = "redisTemplate")
        private ListOperations<String, String> listOps;
    
        /** * * Description: 展示String数据结构操作<br> * Create By: <br> * Create Date: 2017年3月20日 上午9:06:12 * */
        @Test
        public void testValueOperations() {
            String key = "RedisTemplateTest:TEST:String:1";
            ValueOperations<String, String> valueOp = redisTemplate.opsForValue();
            valueOp.set(key, "1");
            Assert.assertEquals("1", valueOp.get(key));
            redisTemplate.delete(key);
            Assert.assertNull(valueOp.get(key));
    
        }
    
        /** * * Description: 展示Set数据结构操作<br> * Create By: <br> * Create Date: 2017年3月20日 上午9:06:12 * */
        @Test
        public void testSetOperations() {
            String key = "RedisTemplateTest:TEST:Set:1";
            SetOperations<String, String> op = redisTemplate.opsForSet();
            op.add(key, "1", "2");
            op.add(key, "2", "3", "4");
            op.remove(key, "4");
            Assert.assertEquals(Long.valueOf(3), op.size(key));
            redisTemplate.delete(key);
            Assert.assertEquals(Long.valueOf(0), op.size(key));
    
        }
    
        /** * * Description: 展示SortedSet数据结构操作<br> * Create By: <br> * Create Date: 2017年3月20日 上午9:06:12 * */
        @Test
        public void testZSetOperations() {
            String key = "RedisTemplateTest:TEST:ZSet:1";
            ZSetOperations<String, String> op = redisTemplate.opsForZSet();
            // 添加Key及用于排序的得分
            op.add(key, "1", 1);
            op.add(key, "2", 2);
            op.add(key, "3", 3);
            op.add(key, "4", 2);
            // 更新
            op.add(key, "4", 4);
    
            Assert.assertEquals(Long.valueOf(2), op.count(key, 3, 4));
    
            op.remove(key, "3");
            Assert.assertEquals(Long.valueOf(3), op.size(key));
    
            redisTemplate.delete(key);
            Assert.assertEquals(Long.valueOf(0), op.size(key));
    
        }
    
        /** * Description: 展示Hash数据结构操作<br> * Create By: <br> * Create Date: 2017年3月20日 上午9:06:12 */
        @Test
        public void testHashOperations() {
            String key = "RedisTemplateTest:TEST:Hash:1";
            HashOperations<String, String, String> op = redisTemplate.opsForHash();
    
            op.put(key, "1", "1");
    
            Map<String, String> map = new HashMap<String, String>();
            map.put("2", "2");
            map.put("3", "3");
            map.put("4", "4");
            map.put("5", "5");
    
            op.putAll(key, map);
    
            Assert.assertEquals(5, op.entries(key).size());
    
            op.delete(key, "4", "5");
            Assert.assertEquals(3, op.entries(key).size());
    
            redisTemplate.delete(key);
            Assert.assertEquals(0, op.entries(key).size());
    
        }
    }

### StringRedisTemplate ###

org.springframework.data.redis.core.StringRedisTemplate类提供了基于String类型操作类，可用于简化Key、Value都是String类型时的操作。

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" p:use-pool="true"/> <bean id="stringRedisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate" p:connection-factory-ref="jedisConnectionFactory"/> ... </beans>

@RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration({ "/spring/spring-context.xml" })
    public class StringRedisTemplateTest { 
    
        @Autowired
        @Qualifier("stringRedisTemplate")
        StringRedisTemplate redisTemplate;
    
        /** * Description: 展示String数据结构操作<br> * Create By: <br> * Create Date: 2017年3月20日 上午9:06:12 */
        @Test
        public void testValueOperations() {
            String key = "StringRedisTemplateTest:TEST:String:1";
            ValueOperations<String, String> valueOp = redisTemplate.opsForValue();
            valueOp.set(key, "1");
            Assert.assertEquals("1", valueOp.get(key));
            redisTemplate.delete(key);
            Assert.assertNull(valueOp.get(key));
    
        }
    
        /** * Description: 展示Set数据结构操作<br> * Create By: <br> * Create Date: 2017年3月20日 上午9:06:12 */
        @Test
        public void testSetOperations() {
            String key = "StringRedisTemplateTest:TEST:Set:1";
            SetOperations<String, String> op = redisTemplate.opsForSet();
            op.add(key, "1", "2");
            op.add(key, "2", "3", "4");
            op.remove(key, "4");
            Assert.assertEquals(Long.valueOf(3), op.size(key));
            redisTemplate.delete(key);
            Assert.assertEquals(Long.valueOf(0), op.size(key));
    
        }
    
        /** * Description: 展示SortedSet数据结构操作<br> * Create By: <br> * Create Date: 2017年3月20日 上午9:06:12 */
        @Test
        public void testZSetOperations() {
            String key = "StringRedisTemplateTest:TEST:ZSet:1";
            ZSetOperations<String, String> op = redisTemplate.opsForZSet();
            // 添加Key及用于排序的得分
            op.add(key, "1", 1);
            op.add(key, "2", 2);
            op.add(key, "3", 3);
            op.add(key, "4", 2);
            // 更新
            op.add(key, "4", 4);
    
            Assert.assertEquals(Long.valueOf(2), op.count(key, 3, 4));
    
            op.remove(key, "3");
            Assert.assertEquals(Long.valueOf(3), op.size(key));
    
            redisTemplate.delete(key);
            Assert.assertEquals(Long.valueOf(0), op.size(key));
    
        }
    
        /** * Description: 展示Hash数据结构操作<br> * Create By: <br> * Create Date: 2017年3月20日 上午9:06:12 */
        @Test
        public void testHashOperations() {
            String key = "StringRedisTemplateTest:TEST:Hash:1";
            HashOperations<String, String, String> op = redisTemplate.opsForHash();
    
            op.put(key, "1", "1");
    
            Map<String, String> map = new HashMap<String, String>();
            map.put("2", "2");
            map.put("3", "3");
            map.put("4", "4");
            map.put("5", "5");
    
            op.putAll(key, map);
    
            Assert.assertEquals(5, op.entries(key).size());
    
            op.delete(key, "4", "5");
            Assert.assertEquals(3, op.entries(key).size());
    
            redisTemplate.delete(key);
            Assert.assertEquals(0, op.entries(key).size());
    
        }
    }