Spring 整合 Jedis

spring 整合 jedis

  1. 单机版整合

    1. 添加配置文件

      
      
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
       
      
      
      
          
          
          
      
      
      1. 测试代码
      /**
       * 单机版测试 整合spring
       * 

      Title: testSpringJedisSingle

      *

      Description:

      */ @Test public void testSpringJedisSingle() { ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:spring/applicationContext-*.xml"); JedisPool pool = (JedisPool) applicationContext.getBean("redisClient"); Jedis jedis = pool.getResource(); String string = jedis.get("key1"); System.out.println(string); jedis.close(); pool.close(); }
  2. 集群版配置

    1. 配置
    
        
            
                
                    
                    
                
                
                    
                    
                
                
                    
                    
                
                
                    
                    
                
                
                    
                    
                
                
                    
                    
                
            
        
        
    
    
    1. 测试代码
    @Test
    public void testSpringJedisCluster() {
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:spring/applicationContext-*.xml");
        JedisCluster jedisCluster =  (JedisCluster) applicationContext.getBean("redisClient");
        String string = jedisCluster.get("key1");
        System.out.println(string);
        jedisCluster.close();
    }
    
  3. 添加 jedis dao 对象

    1. 接口
    public interface JedisClient {
    
        String get(String key);
        String set(String key,String value);
        String hget(String hkey, String key);
        long hset(String hkey, String key, String value);
        long incr(String key);
        long expire(String key, int second);
        long ttl(String key);
        long hdel(String key);
        long hdel(String key, String field);
    
    }
    
    1. 单机版实现
    public class JedisClientSingle implements JedisClient{
    
        @Autowired
        private JedisPool jedisPool; 
        
        @Override
        public String get(String key) {
            Jedis jedis = jedisPool.getResource();
            String string = jedis.get(key);
            jedis.close();
            return string;
        }
    
        @Override
        public String set(String key, String value) {
            Jedis jedis = jedisPool.getResource();
            String string = jedis.set(key, value);
            jedis.close();
            return string;
        }
    
        @Override
        public String hget(String hkey, String key) {
            Jedis jedis = jedisPool.getResource();
            String string = jedis.hget(hkey, key);
            jedis.close();
            return string;
        }
    
        @Override
        public long hset(String hkey, String key, String value) {
            Jedis jedis = jedisPool.getResource();
            Long result = jedis.hset(hkey, key, value);
            jedis.close();
            return result;
        }
    
        @Override
        public long incr(String key) {
            Jedis jedis = jedisPool.getResource();
            Long result = jedis.incr(key);
            jedis.close();
            return result;
        }
    
        @Override
        public long expire(String key, int second) {
            Jedis jedis = jedisPool.getResource();
            Long result = jedis.expire(key, second);
            jedis.close();
            return result;
        }
    
        @Override
        public long ttl(String key) {
            Jedis jedis = jedisPool.getResource();
            Long result = jedis.ttl(key);
            jedis.close();
            return result;
        }
    
        @Override
        public long hdel(String key) {
            Jedis jedis = jedisPool.getResource();
            Long result = jedis.del(key);
            jedis.close();
            return result;
        }
    
        @Override
        public long hdel(String key, String fields) {
            Jedis jedis = jedisPool.getResource();
            Long result = jedis.hdel(key, fields);
            jedis.close();
            return result;
            
        }
    
    }
    
    1. 集群版实现
    public class JedisClientCluster implements JedisClient {
    
        @Autowired
        private JedisCluster jedisCluster;
        
        @Override
        public String get(String key) {
            return jedisCluster.get(key);
        }
    
        @Override
        public String set(String key, String value) {
            return jedisCluster.set(key, value);
        }
    
        @Override
        public String hget(String hkey, String key) {
            return jedisCluster.hget(hkey, key);
        }
    
        @Override
        public long hset(String hkey, String key, String value) {
            return jedisCluster.hset(hkey, key, value);
        }
    
        @Override
        public long incr(String key) {
            return jedisCluster.incr(key);
        }
    
        @Override
        public long expire(String key, int second) {
            return jedisCluster.expire(key, second);
        }
    
        @Override
        public long ttl(String key) {
            return jedisCluster.ttl(key);
        }
    
        @Override
        public long hdel(String key) {
            return jedisCluster.del(key);
        }
    
        @Override
        public long hdel(String key, String field) {
            return jedisCluster.hdel(key, field);
        }
    
    }
    
  4. 配置文件增加 项目启动创建单例的dao对象

    1. 单机版
    
    
    1. 集群版
    
    
  5. 把缓存添加到业务逻辑

    @Override
    public List getContentList(long contentCid) {
        //从缓存中取内容 开始
        try {
            String result = jedisClient.hget(INDEX_CONTENT_REDIS_KEY, contentCid + "");
            if (!StringUtils.isBlank(result)) {
                //把字符串转换成list
                List resultList = JsonUtils.jsonToList(result, TbContent.class);
                return resultList;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        //从缓存中取内容 结束
    
        //根据内容分类id查询内容列表
        TbContentExample example = new TbContentExample();
        Criteria criteria = example.createCriteria();
        criteria.andCategoryIdEqualTo(contentCid);
        //执行查询
        List list = contentMapper.selectByExample(example);
    
        //向缓存中添加内容  开始
        try {
            //把list转换成字符串
            String cacheString = JsonUtils.objectToJson(list);
            jedisClient.hset(INDEX_CONTENT_REDIS_KEY, contentCid + "", cacheString);
        } catch (Exception e) {
            e.printStackTrace();
        }
        //向缓存中添加内容  结束
        
        return list;
    }
    
  6. 缓存同步

    当后台管理系统,修改内容之后需要通知redis把修改的内容对应的分类id的key删除。

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