redisUtil 类

import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.BoundSetOperations;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.ListOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Service;


/** 
 * @ClassName: RedisCacheUtil 
 * @Description: redis缓存工具类
 * @author li
 * @date 2018年3月20日 上午11:04:13 
 * @param <T> 
 */ 
 
@Service
@SuppressWarnings({ "rawtypes", "unchecked", "hiding"})
public class RedisCacheUtil<T> {

	@Autowired
    public RedisTemplate redisTemplate;
    
    /** 
     * @Title: setCacheObject 
     * @param key
     * @param value
     * @return
     * @Description: 缓存基本的对象，Integer、String、实体类等 
     */ 
    public <T> void setCacheObject(String key, T value) {
        redisTemplate.opsForValue().set(key, value);
    }
    /** 
     * @Title: setCacheObject 
     * @param key
     * @param value
     * @param timeOut 超时时间
     * @param timeUnit 超时单位 
     * @return
     * @Description: 缓存基本的对象，Integer、String、实体类等
     */ 
    public <T> void setCacheObject(String key, T value,Long timeOut,TimeUnit timeUnit) {
        redisTemplate.opsForValue().set(key, value, timeOut, timeUnit);
    }
   
    /** 
     * @Title: getCacheObject 
     * @param key
     * @return
     * @Description: 获取缓存基本对象
     */ 
    public <T> T getCacheObject(String key) {
        return (T) redisTemplate.opsForValue().get(key);
    }

    /**
     * 缓存List数据
     * @param key      缓存的键值
     * @param dataList 待缓存的List数据
     * @return 缓存的对象
     */
	public <T> ListOperations<String, T> setCacheList(String key, List<T> dataList) {
        ListOperations listOperation = redisTemplate.opsForList();
        if (null != dataList) {
            int size = dataList.size();
            for (int i = 0; i < size; i++) {
                listOperation.leftPush(key, dataList.get(i));
            }
        }
        return listOperation;
    }

    /**
     * 获得缓存的list对象
     * @param key 缓存的键值
     * @return 缓存键值对应的数据
     */
    public <T> List<T> getCacheList(String key) {
        List<T> dataList = new ArrayList<T>();
        ListOperations<String, T> listOperation = redisTemplate.opsForList();
        Long size = listOperation.size(key);

        for (int i = 0; i < size; i++) {
            dataList.add(listOperation.index(key,i));
        }
        return dataList;
    }

    /**
     * 缓存Set
     * @param key     缓存键值
     * @param dataSet 缓存的数据
     * @return 缓存数据的对象
     */
    public <T> BoundSetOperations<String, T> setCacheSet(String key, Set<T> dataSet) {
        BoundSetOperations<String, T> setOperation = redisTemplate.boundSetOps(key);
        Iterator<T> it = dataSet.iterator();
        while (it.hasNext()) {
            setOperation.add(it.next());
        }
        return setOperation;
    }

    /**
     * 获得缓存的set
     * @param key
     * @return
     */
    public Set<T> getCacheSet(String key) {
        Set<T> dataSet = new HashSet<T>();
        BoundSetOperations<String, T> operation = redisTemplate.boundSetOps(key);
        Long size = operation.size();
        for (int i = 0; i < size; i++) {
            dataSet.add(operation.pop());
        }
        return dataSet;
    }

    /**
     * 缓存Map
     * @param key
     * @param dataMap
     * @return
     */
    public <T> HashOperations<String, String, T> setCacheMap(String key, Map<String, T> dataMap) {

        HashOperations hashOperations = redisTemplate.opsForHash();
        if (null != dataMap) {
            for (Map.Entry<String, T> entry : dataMap.entrySet()) {
                hashOperations.put(key, entry.getKey(), entry.getValue());
            }
        }
        return hashOperations;
    }

    /**
     * 获得缓存的Map
     *
     * @param key
     * @return
     */
    public <T> Map<String, T> getCacheMap(String key) {
        Map<String, T> map = redisTemplate.opsForHash().entries(key);
        return map;
    }


    /**
     * 缓存Map
     *
     * @param key
     * @param dataMap
     * @return
     */
    public <T> HashOperations<String, Integer, T> setCacheIntegerMap(String key, Map<Integer, T> dataMap) {
        HashOperations hashOperations = redisTemplate.opsForHash();
        if (null != dataMap) {
            for (Map.Entry<Integer, T> entry : dataMap.entrySet()) {
                hashOperations.put(key, entry.getKey(), entry.getValue());
            }
        }
        return hashOperations;
    }

    /**
     * 获得缓存的Map
     *
     * @param key
     * @return
     */
    public <T> Map<Integer, T> getCacheIntegerMap(String key) {
        Map<Integer, T> map = redisTemplate.opsForHash().entries(key);
        return map;
    }
}