Spring data redis 之 spring 系統整合
阿新 • • 發佈:2018-11-19
第一步: 新增依賴(以maven為例)
<!-- redis相關jar包依賴 -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>1.8.6.RELEASE</version>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>
spring-data-redis 是spring 對redis的整合封裝,spring操作redis 最常用的就是其中的RedisTemplate 物件!spring 對redis操作做了很好的序列化封裝,使用起來會方便很多。
第二步:配置資料庫連線快取池
如圖所示:裡面每個欄位的基本都有說明(下面會將完整配置貼上)。裡面的testWhileIdle 是個無效配置項
第三步:配置redis 連結物件
和mybatis一樣配置 連結工廠就可以了。
第四步 : 配置 RedisTemplate
如果需要其他的Template 在下面追加就可以了,例如 : StringRedisTemplate
整體配置如下:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:redis="http://www.springframework.org/schema/redis" xmlns:cache="http://www.springframework.org/schema/cache" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/redis http://www.springframework.org/schema/redis/spring-redis.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd "> <!-- Redis --> <!-- 連線池引數 --> <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> <!-- 最大連結數 --> <property name="maxIdle" value="100" /> <!-- 最小連線數 --> <property name="minIdle" value="10" /> <property name="maxTotal" value="200" /> <property name="maxWaitMillis" value="10000" /> <!-- 表示一個物件至少停留在idle狀態的最短時間,然後才能被idle object evitor掃描並驅逐; 這一項只有在timeBetweenEvictionRunsMillis大於0時才有意義; --> <property name="minEvictableIdleTimeMillis" value="300000"></property> <property name="numTestsPerEvictionRun" value="10"></property> <!-- 表示idle object evitor兩次掃描之間要sleep的毫秒數; --> <property name="timeBetweenEvictionRunsMillis" value="30000"></property> <!-- 獲得一個jedis例項的時候是否檢查連線可用性(ping());如果為true,則得到的jedis例項均是可用的; --> <property name="testOnBorrow" value="true" /> <!-- return 一個jedis例項給pool時,是否檢查連線可用性(ping()) --> <property name="testOnReturn" value="true" /> <!-- 如果為true,表示有一個idle object evitor執行緒對idle object進行掃描, 如果validate失敗,此object會被從pool中drop掉; 這一項只有在timeBetweenEvictionRunsMillis大於0時才有意義; --> <property name="testWhileIdle" value="true"></property> </bean> <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"> <property name="poolConfig" ref="jedisPoolConfig" /> <property name="hostName" value="127.0.0.1" /> <property name="port" value="6379" /> <property name="password" value="" /> <property name="usePool" value="true" /> <property name="database" value="0" /> <property name="timeout" value="1000" /> </bean> <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate"> <property name="connectionFactory" ref="jedisConnectionFactory" /> <!-- 序列化方式 建議key/hashKey採用StringRedisSerializer --> <property name="keySerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" /> </property> <property name="valueSerializer"> <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer" /> </property> <property name="hashKeySerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" /> </property> <property name="hashValueSerializer"> <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer" /> </property> <!-- 開啟REIDS事務支援 --> <property name="enableTransactionSupport" value="false" /> </bean> <!-- 對string操作的封裝 --> <bean id="stringRedisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate"> <constructor-arg ref="jedisConnectionFactory" /> <!-- 開啟REIDS事務支援 --> <property name="enableTransactionSupport" value="false" /> </bean> </beans>
第五步:新增spring 的getBean 方法
package com.telchina.scada.common.util;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
* Context 工具類
*/
@SuppressWarnings("static-access")
@Component
public class SpringtUtil implements ApplicationContextAware {
private static ApplicationContext commonApplicationContext;
public void setApplicationContext(ApplicationContext context) throws BeansException {
this.commonApplicationContext = context;
}
/**
* 根據提供的bean名稱得到相應的服務類
* @param beanId bean的id
* @return 返回bean的例項物件
*/
public static Object getBean(String beanId) {
return commonApplicationContext.getBean(beanId);
}
/**
* 根據提供的bean名稱得到對應於指定型別的服務類
* @param beanId bean的id
* @param clazz bean的類型別
* @return 返回的bean型別,若型別不匹配,將丟擲異常
*/
public static <T> T getBean(String beanId, Class<T> clazz) {
return commonApplicationContext.getBean(beanId, clazz);
}
}
第六步:redis工具類
package com.telchina.scada.common.util;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
/**
* redis工具類
*
*/
@SuppressWarnings("unchecked")
public class RedisUtil {
private static final Logger LOG = LoggerFactory.getLogger(CacheUtil.class);
private static RedisTemplate<String, Object> redisTemplate = SpringtUtil.getBean("redisTemplate", RedisTemplate.class);
private static StringRedisTemplate stringRedisTemplate = SpringtUtil.getBean("stringRedisTemplate", StringRedisTemplate.class);
private static String CACHE_PREFIX;
private static boolean CACHE_CLOSED;
private CacheUtil() {
}
@SuppressWarnings("rawtypes")
private static boolean isEmpty(Object obj) {
if (obj == null) {
return true;
}
if (obj instanceof String) {
String str = obj.toString();
if ("".equals(str.trim())) {
return true;
}
return false;
}
if (obj instanceof List) {
List<Object> list = (List<Object>) obj;
if (list.isEmpty()) {
return true;
}
return false;
}
if (obj instanceof Map) {
Map map = (Map) obj;
if (map.isEmpty()) {
return true;
}
return false;
}
if (obj instanceof Set) {
Set set = (Set) obj;
if (set.isEmpty()) {
return true;
}
return false;
}
if (obj instanceof Object[]) {
Object[] objs = (Object[]) obj;
if (objs.length <= 0) {
return true;
}
return false;
}
return false;
}
/**
* 構建快取key值
* @param key 快取key
* @return
*/
private static String buildKey(String key) {
if (CACHE_PREFIX == null || "".equals(CACHE_PREFIX)) {
return key;
}
return CACHE_PREFIX + ":" + key;
}
/**
* 返回快取的字首
* @return CACHE_PREFIX_FLAG
*/
public static String getCachePrefix() {
return CACHE_PREFIX;
}
/**
* 設定快取的字首
* @param cachePrefix
*/
public static void setCachePrefix(String cachePrefix) {
if (cachePrefix != null && !"".equals(cachePrefix.trim())) {
CACHE_PREFIX = cachePrefix.trim();
}
}
/**
* 關閉快取
* @return true:成功
* false:失敗
*/
public static boolean close() {
LOG.debug(" cache closed ! ");
CACHE_CLOSED = true;
return true;
}
/**
* 開啟快取
* @return true:存在
* false:不存在
*/
public static boolean openCache() {
CACHE_CLOSED = false;
return true;
}
/**
* 檢查快取是否開啟
* @return true:已關閉
* false:已開啟
*/
public static boolean isClose() {
return CACHE_CLOSED;
}
/**
* 判斷key值是否存在
* @param key 快取的key
* @return true:存在
* false:不存在
*/
public static boolean hasKey(String key) {
LOG.debug(" hasKey key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return false;
}
key = buildKey(key);
return redisTemplate.hasKey(key);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 匹配符合正則的key
* @param patternKey
* @return key的集合
*/
public static Set<String> keys(String patternKey) {
LOG.debug(" keys key :{}", patternKey);
try {
if (isClose() || isEmpty(patternKey)) {
return Collections.emptySet();
}
return redisTemplate.keys(patternKey);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return Collections.emptySet();
}
/**
* 根據key刪除快取
* @param key
* @return true:成功
* false:失敗
*/
public static boolean del(String... key) {
LOG.debug(" delete key :{}", key.toString());
try {
if (isClose() || isEmpty(key)) {
return false;
}
Set<String> keySet = new HashSet<String>();
for (String str : key) {
keySet.add(buildKey(str));
}
redisTemplate.delete(keySet);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 根據key刪除快取
* @param key
* @return true:成功
* false:失敗
*/
public static boolean delPattern(String key) {
LOG.debug(" delete Pattern keys :{}", key);
try {
if (isClose() || isEmpty(key)) {
return false;
}
key = buildKey(key);
redisTemplate.delete(redisTemplate.keys(key));
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 刪除一組key值
* @param keys
* @return true:成功
* false:失敗
*/
public static boolean del(Set<String> keys) {
LOG.debug(" delete keys :{}", keys.toString());
try {
if (isClose() || isEmpty(keys)) {
return false;
}
Set<String> keySet = new HashSet<String>();
for (String str : keys) {
keySet.add(buildKey(str));
}
redisTemplate.delete(keySet);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 設定過期時間
* @param key 快取key
* @param seconds 過期秒數
* @return true:成功
* false:失敗
*/
public static boolean setExp(String key, long seconds) {
LOG.debug(" setExp key :{}, seconds: {}", key, seconds);
try {
if (isClose() || isEmpty(key) || seconds > 0) {
return false;
}
key = buildKey(key);
return redisTemplate.expire(key, seconds, TimeUnit.SECONDS);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 查詢過期時間
* @param key 快取key
* @return 秒數
*/
public static Long getExpire(String key) {
LOG.debug(" getExpire key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return 0L;
}
key = buildKey(key);
return redisTemplate.getExpire(key, TimeUnit.SECONDS);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return 0L;
}
/**
* 快取存入key-value
* @param key 快取鍵
* @param value 快取值
* @return true:成功
* false:失敗
*/
public static boolean setString(String key, String value) {
LOG.debug(" setString key :{}, value: {}", key, value);
try {
if (isClose() || isEmpty(key) || isEmpty(value)) {
return false;
}
key = buildKey(key);
stringRedisTemplate.opsForValue().set(key, value);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 快取存入key-value
* @param key 快取鍵
* @param value 快取值
* @param seconds 秒數
* @return true:成功
* false:失敗
*/
public static boolean setString(String key, String value, long seconds) {
LOG.debug(" setString key :{}, value: {}, timeout:{}", key, value, seconds);
try {
if (isClose() || isEmpty(key) || isEmpty(value)) {
return false;
}
key = buildKey(key);
stringRedisTemplate.opsForValue().set(key, value, seconds, TimeUnit.SECONDS);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 根據key取出String value
* @param key 快取key值
* @return String 快取的String
*/
public static String getString(String key) {
LOG.debug(" getString key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return null;
}
key = buildKey(key);
return stringRedisTemplate.opsForValue().get(key);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
/**
* 去的快取中的最大值並+1
* @param key 快取key值
* @return long 快取中的最大值+1
*/
public static long incr(String key) {
LOG.debug(" incr key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return 0;
}
key = buildKey(key);
return redisTemplate.opsForValue().increment(key, 1);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return 0;
}
/**
* 快取中存入序列化的Object物件
* @param <T>
* @param key 快取key
* @param obj 存入的序列化物件
* @return true:成功
* false:失敗
*/
public static boolean set(String key, Object obj) {
LOG.debug(" set key :{}, value:{}", key, obj);
try {
if (isClose() || isEmpty(key) || isEmpty(obj)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForValue().set(key, obj);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 快取中存入序列化的Object物件
* @param <T>
* @param key 快取key
* @param obj 存入的序列化物件
* @return true:成功
* false:失敗
*/
public static boolean setObj(String key, Object obj, long seconds) {
LOG.debug(" set key :{}, value:{}, seconds:{}", key, obj, seconds);
try {
if (isClose() || isEmpty(key) || isEmpty(obj)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForValue().set(key, obj);
if (seconds > 0) {
redisTemplate.expire(key, seconds, TimeUnit.SECONDS);
}
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 取出快取中儲存的序列化物件
* @param key 快取key
* @param clazz 物件類
* @return <T> 序列化物件
*/
public static <T> T getObj(String key, Class<T> clazz) {
LOG.debug(" get key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return null;
}
key = buildKey(key);
return (T) redisTemplate.opsForValue().get(key);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
/**
* 存入Map陣列
* @param <T>
* @param key 快取key
* @param map 快取map
* @return true:成功
* false:失敗
*/
public static <T> boolean setMap(String key, Map<String, T> map) {
try {
if (isClose() || isEmpty(key) || isEmpty(map)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForHash().putAll(key, map);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 取出快取的map
* @param key 快取key
* @return map 快取的map
*/
@SuppressWarnings("rawtypes")
public static Map getMap(String key) {
LOG.debug(" getMap key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return null;
}
key = buildKey(key);
return redisTemplate.opsForHash().entries(key);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
/**
* 查詢快取的map的集合大小
* @param key 快取key
* @return int 快取map的集合大小
*/
public static long getMapSize(String key) {
LOG.debug(" getMap key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return 0;
}
key = buildKey(key);
return redisTemplate.opsForHash().size(key);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return 0;
}
/**
* 根據key以及hashKey取出對應的Object物件
* @param key 快取key
* @param hashKey 對應map的key
* @return object map中的物件
*/
public static Object getMapKey(String key, String hashKey) {
LOG.debug(" getMapkey :{}, hashKey:{}", key, hashKey);
try {
if (isClose() || isEmpty(key) || isEmpty(hashKey)) {
return null;
}
key = buildKey(key);
return redisTemplate.opsForHash().get(key, hashKey);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
/**
* 取出快取中map的所有key值
* @param key 快取key
* @return Set<String> map的key值合集
*/
public static Set<Object> getMapKeys(String key) {
LOG.debug(" getMapKeys key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return null;
}
key = buildKey(key);
return redisTemplate.opsForHash().keys(key);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
/**
* 刪除map中指定的key值
* @param key 快取key
* @param hashKey map中指定的hashKey
* @return true:成功
* false:失敗
*/
public static boolean delMapKey(String key, String hashKey) {
LOG.debug(" delMapKey key :{}, hashKey:{}", key, hashKey);
try {
if (isClose() || isEmpty(key) || isEmpty(hashKey)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForHash().delete(key, hashKey);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 存入Map陣列
* @param <T>
* @param key 快取key
* @param map 快取map
* @param seconds 秒數
* @return true:成功
* false:失敗
*/
public static <T> boolean setMapExp(String key, Map<String, T> map, long seconds) {
LOG.debug(" setMapExp key :{}, value: {}, seconds:{}", key, map, seconds);
try {
if (isClose() || isEmpty(key) || isEmpty(map)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForHash().putAll(key, map);
redisTemplate.expire(key, seconds, TimeUnit.SECONDS);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* map中加入新的key
* @param <T>
* @param key 快取key
* @param hashKey map的Key值
* @param value map的value值
* @return true:成功
* false:失敗
*/
public static <T> boolean addMap(String key, String hashKey, T value) {
LOG.debug(" addMap key :{}, hashKey: {}, value:{}", key, hashKey, value);
try {
if (isClose() || isEmpty(key) || isEmpty(hashKey) || isEmpty(value)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForHash().put(key, hashKey, value);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 快取存入List
* @param <T>
* @param key 快取key
* @param list 快取List
* @return true:成功
* false:失敗
*/
public static <T> boolean setList(String key, List<T> list) {
LOG.debug(" setList key :{}, list: {}", key, list);
try {
if (isClose() || isEmpty(key) || isEmpty(list)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForList().leftPushAll(key, list.toArray());
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 根據key值取出對應的list合集
* @param key 快取key
* @return List<Object> 快取中對應的list合集
*/
public static <V> List<V> getList(String key) {
LOG.debug(" getList key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return null;
}
key = buildKey(key);
return (List<V>) redisTemplate.opsForList().range(key, 0, -1);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
/**
* 根據key值擷取對應的list合集
* @param key 快取key
* @param start 開始位置
* @param end 結束位置
* @return
*/
public static void trimList(String key, int start, int end) {
LOG.debug(" trimList key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return;
}
key = buildKey(key);
redisTemplate.opsForList().trim(key, start, end);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
}
/**
* 取出list合集中指定位置的物件
* @param key 快取key
* @param index 索引位置
* @return Object list指定索引位置的物件
*/
public static Object getIndexList(String key, int index) {
LOG.debug(" getIndexList key :{}, index:{}", key, index);
try {
if (isClose() || isEmpty(key) || index < 0) {
return null;
}
key = buildKey(key);
return redisTemplate.opsForList().index(key, index);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
/**
* Object存入List
* @param <T>
* @param key 快取key
* @param value List中的值
* @return true:成功
* false:失敗
*/
public static boolean addList(String key, Object value) {
LOG.debug(" addList key :{}, value:{}", key, value);
try {
if (isClose() || isEmpty(key) || isEmpty(value)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForList().leftPush(key, value);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 快取存入List
* @param <T>
* @param key 快取key
* @param list 快取List
* @param seconds 秒數
* @return true:成功
* false:失敗
*/
public static <T> boolean setList(String key, List<T> list, long seconds) {
LOG.debug(" setList key :{}, value:{}, seconds:{}", key, list, seconds);
try {
if (isClose() || isEmpty(key) || isEmpty(list)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForList().leftPushAll(key, list.toArray());
if (seconds > 0) {
redisTemplate.expire(key, seconds, TimeUnit.SECONDS);
}
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* set集合存入快取
* @param <T>
* @param key 快取key
* @param set 快取set集合
* @return true:成功
* false:失敗
*/
public static <T> boolean setSet(String key, Set<T> set) {
LOG.debug(" setSet key :{}, value:{}", key, set);
try {
if (isClose() || isEmpty(key) || isEmpty(set)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForSet().add(key, set.toArray());
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* set集合中增加value
* @param <T>
* @param key 快取key
* @param value 增加的value
* @return true:成功
* false:失敗
*/
public static boolean addSet(String key, Object value) {
LOG.debug(" addSet key :{}, value:{}", key, value);
try {
if (isClose() || isEmpty(key) || isEmpty(value)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForSet().add(key, value);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* set集合存入快取
* @param <T>
* @param key 快取key
* @param set 快取set集合
* @param seconds 秒數
* @return true:成功
* false:失敗
*/
public static <T> boolean setSet(String key, Set<T> set, long seconds) {
LOG.debug(" setSet key :{}, value:{}, seconds:{}", key, set, seconds);
try {
if (isClose() || isEmpty(key) || isEmpty(set)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForSet().add(key, set.toArray());
if (seconds > 0) {
redisTemplate.expire(key, seconds, TimeUnit.SECONDS);
}
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 取出快取中對應的set合集
* @param <T>
* @param key 快取key
* @return Set<Object> 快取中的set合集
*/
public static <T> Set<T> getSet(String key) {
LOG.debug(" getSet key :{}", key);
try {
if (isClose() || isEmpty(key)) {
return null;
}
key = buildKey(key);
return (Set<T>) redisTemplate.opsForSet().members(key);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
/**
* 有序集合存入數值
* @param key 快取key
* @param value 快取value
* @param score 評分
* @return
*/
public static boolean addZSet(String key, Object value, double score) {
LOG.debug(" addZSet key :{},value:{}, score:{}", key, value, score);
try {
if (isClose() || isEmpty(key) || isEmpty(value)) {
return false;
}
key = buildKey(key);
return redisTemplate.opsForZSet().add(key, value, score);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 從有序集合中刪除指定值
* @param key 快取key
* @param value 快取value
* @return
*/
public static boolean removeZSet(String key, Object value) {
LOG.debug(" removeZSet key :{},value:{}", key, value);
try {
if (isClose() || isEmpty(key) || isEmpty(value)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForZSet().remove(key, value);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 從有序集合中刪除指定位置的值
* @param key 快取key
* @param start 起始位置
* @param end 結束為止
* @return
*/
public static boolean removeZSet(String key, long start, long end) {
LOG.debug(" removeZSet key :{},start:{}, end:{}", key, start, end);
try {
if (isClose() || isEmpty(key)) {
return false;
}
key = buildKey(key);
redisTemplate.opsForZSet().removeRange(key, start, end);
return true;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return false;
}
/**
* 從有序集合中獲取指定位置的值
* @param key 快取key
* @param start 起始位置
* @param end 結束為止
* @return
*/
public static <T> Set<T> getZSet(String key, long start, long end) {
LOG.debug(" getZSet key :{},start:{}, end:{}", key, start, end);
try {
if (isClose() || isEmpty(key)) {
return Collections.emptySet();
}
key = buildKey(key);
return (Set<T>) redisTemplate.opsForZSet().range(key, start, end);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return Collections.emptySet();
}
}