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上一节spring整合redis，用到的redis模板为StringRedisTemplate，List和Map、Set等需要转换为String字符串后进行操作，spring提供了工具类
redis缓存工具类
ValueOperations ——基本数据类型和实体类的缓存
ListOperations ——list的缓存
SetOperations ——set的缓存
HashOperations ——Map的缓存
RedisTemplate模板配置
<bean id="jedisTemplate" class="org.springframework.data.redis.core.RedisTemplate"> <property name="connectionFactory" ref="jedisConnectionFactory"></property> <property name="keySerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer"/> </property> <property name="valueSerializer"> <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"/> </property>
</bean>工具类
import java.io.Serializable;
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 org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
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;@Service
public class RedisCacheUtil<T> {@Autowired@Qualifier("jedisTemplate")public RedisTemplate redisTemplate;/*** 缓存基本的对象，Integer、String、实体类等** @param key 缓存的键值* @param value 缓存的值* @return 缓存的对象*/public <T> ValueOperations<String, T> setCacheObject(String key, T value) {ValueOperations<String, T> operation = redisTemplate.opsForValue();operation.set(key, value);return operation;}/*** 获得缓存的基本对象。** @param key 缓存键值* @return 缓存键值对应的数据*/public <T> T getCacheObject(String key) {ValueOperations<String, T> operation = redisTemplate.opsForValue();return operation.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.rightPush(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((T) listOperation.leftPop(key));}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;}
}参考文章：http://www.cnblogs.com/holdouts/articles/5811118.html
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