Spring集成redis（SSM框架） 博客分类： spring

参考：https://blog.csdn.net/weixin_42184707/article/details/80361464

 

一、本地安装 redis（windows）

1、 下载redis压缩包

 

      下载地址：https://github.com/MicrosoftArchive/redis/tags

 

2、解压到对应目录：

 

 

 

3、双击redis-server.exe启动redis，双击redis-cli.exe操作redis命令。

 

 

 

启动成功页面如上图，至此redis安装完毕。若不能正确安装还请读者留言咨询。接下来步入正题。

 

二、jar包引入，配置redis.properties

<!--redis相关 -->

        <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>

redis.priperties文件内容：

 

redis.host=127.0.0.1

redis.port=6379

 

redis.sentinel.port=26879

 

redis.pwd=

 

redis.database=0

redis.timeout=1000

redis.userPool=true

redis.pool.maxIdle=100

redis.pool.minIdle=10

redis.pool.maxTotal=200

redis.pool.maxWaitMillis=10000

redis.pool.minEvictableIdleTimeMillis=300000

redis.pool.numTestsPerEvictionRun=10

redis.pool.timeBetweenEvictionRunsMillis=30000

redis.pool.testOnBorrow=true

redis.pool.testOnReturn=true

 

redis.pool.testWhileIdle=true

 

三、配置spring-redis.xml

<?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

    ">

    <context:property-placeholder order="1" location="classpath:redis.properties" ignore-unresolvable="true"/>

    <!-- Redis -->

    <!-- 连接池参数 -->

    <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">

        <property name="maxIdle" value="${redis.pool.maxIdle}" />

        <property name="minIdle" value="${redis.pool.minIdle}" />

        <property name="maxTotal" value="${redis.pool.maxTotal}" />

        <property name="maxWaitMillis" value="${redis.pool.maxWaitMillis}" />

        <property name="minEvictableIdleTimeMillis" value="${redis.pool.minEvictableIdleTimeMillis}"></property>

        <property name="numTestsPerEvictionRun" value="${redis.pool.numTestsPerEvictionRun}"></property>

        <property name="timeBetweenEvictionRunsMillis" value="${redis.pool.timeBetweenEvictionRunsMillis}"></property>

        <property name="testOnBorrow" value="${redis.pool.testOnBorrow}" />

        <property name="testOnReturn" value="${redis.pool.testOnReturn}" />

        <property name="testWhileIdle" value="${redis.pool.testWhileIdle}"></property>

    </bean>

 

    <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">

        <property name="poolConfig" ref="jedisPoolConfig" />

        <property name="hostName" value="${redis.host}" />

        <property name="port" value="${redis.port}" />

        <property name="password" value="${redis.pwd}" />

        <property name="usePool" value="${redis.userPool} " />

        <property name="database" value="${redis.database}" />

        <property name="timeout" value="${redis.timeout}" />

    </bean>

 

    <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">

        <property name="connectionFactory" ref="jedisConnectionFactory" />

        

        <!-- 序列化方式 建议key/hashKey采用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>

         <!-- 开启REIDS事务支持 -->

         <property name="enableTransactionSupport" value="false" />

    </bean>

 

    <!-- 对string操作的封装 -->

    <bean id="stringRedisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">

        <constructor-arg ref="jedisConnectionFactory" />

            <!-- 开启REIDS事务支持 -->  

         <property name="enableTransactionSupport" value="false" />

    </bean>

    

</beans>

四、在applactionContext.xml引入spring-redis.xml

           <import resource="classpath:spring/spring-redis.xml" />

五、封装redis操作工具类（类中注释解释很详细）

       这里封装的方法包括对String、list 、set、obj、map等的操作 。

 

 

package com.test.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工具类

 *

 */

@SuppressWarnings("unchecked")

public class CacheUtil {

 

    private static final Logger LOG = LoggerFactory.getLogger(CacheUtil.class);

 

    private static RedisTemplate<String, Object> redisTemplate = CacheContextUtil.getBean("redisTemplate", RedisTemplate.class);

 

    private static StringRedisTemplate stringRedisTemplate = CacheContextUtil.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;

    }

    /**

     * 构建缓存key值

     * @param key缓存key

     * @return

     */

    private static String buildKey(String key) {

if (CACHE_PREFIX == null || "".equals(CACHE_PREFIX)) {

    return key;

}

return CACHE_PREFIX + ":" + key;

    }

    /**

     * 返回缓存的前缀

     * @return CACHE_PREFIX_FLAG

     */

    public static String getCachePrefix() {

return CACHE_PREFIX;

    }

    /**

     * 设置缓存的前缀

     * @param cachePrefix

     */

    public static void setCachePrefix(String cachePrefix) {

if (cachePrefix != null && !"".equals(cachePrefix.trim())) {

    CACHE_PREFIX = cachePrefix.trim();

}

    }

    /**

     * 关闭缓存

     * @returntrue:成功 

     * false:失败

     */

    public static boolean close() {

LOG.debug(" cache closed ! ");

CACHE_CLOSED = true;

return true;

    }

    /**

     * 打开缓存

     * @returntrue:存在

     * false:不存在

     */

    public static boolean openCache() {

CACHE_CLOSED = false;

return true;

    }

    /**

     * 检查缓存是否开启

     * @returntrue:已关闭 

     * false:已开启

     */

    public static boolean isClose() {

return CACHE_CLOSED;

    }

    /**

     * 判断key值是否存在

     * @param key缓存的key

     * @returntrue: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;

    }

    /**

     * 匹配符合正则的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();

    }

 

    /**

     * 根据key删除缓存

     * @param key

     * @returntrue:成功 

     * false:失败

     */

    public static boolean del(String... key) {

LOG.debug(" delete key :{}", key.toString());

try {

    if (isClose() || isEmpty(key)) {

return false;

    }

    Set<String> keySet = new HashSet<>();

    for (String str : key) {

keySet.add(buildKey(str));

    }

    redisTemplate.delete(keySet);

    return true;

} catch (Exception e) {

    LOG.error(e.getMessage(), e);

}

return false;

    }

 

    /**

     * 根据key删除缓存

     * @param key

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 删除一组key值

     * @param keys

     * @returntrue:成功 

     * false:失败

     */

    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<>();

    for (String str : keys) {

keySet.add(buildKey(str));

    }

    redisTemplate.delete(keySet);

    return true;

} catch (Exception e) {

    LOG.error(e.getMessage(), e);

}

return false;

    }

 

    /**

     * 设置过期时间

     * @param key缓存key

     * @param seconds过期秒数

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 查询过期时间

     * @param key缓存key

     * @return秒数

     */

    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;

    }

 

    /**

     * 缓存存入key-value

     * @param key缓存键

     * @param value缓存值

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 缓存存入key-value

     * @param key缓存键

     * @param value缓存值

     * @param seconds秒数

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 根据key取出String value

     * @param key缓存key值

     * @returnString缓存的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;

    }

 

    /**

     * 去的缓存中的最大值并+1

     * @param key缓存key值

     * @returnlong缓存中的最大值+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;

    }

 

    /**

     * 缓存中存入序列化的Object对象

     * @param <T>

     * @param key缓存key

     * @param obj存入的序列化对象

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 缓存中存入序列化的Object对象

     * @param <T>

     * @param key缓存key

     * @param obj存入的序列化对象

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 取出缓存中存储的序列化对象

     * @param key缓存key

     * @param clazz对象类

     * @return <T>序列化对象

     */

    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数组

     * @param <T>

     * @param key缓存key

     * @param map缓存map

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 取出缓存的map

     * @param key缓存key

     * @return map缓存的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;

    }

 

    /**

     * 查询缓存的map的集合大小

     * @param key缓存key

     * @return int缓存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;

    }

 

    

    /**

     * 根据key以及hashKey取出对应的Object对象

     * @param key缓存key

     * @param hashKey对应map的key

     * @return objectmap中的对象

     */

    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;

    }

 

    /**

     * 取出缓存中map的所有key值

     * @param key缓存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;

    }

 

    /**

     * 删除map中指定的key值

     * @param key缓存key

     * @param hashKeymap中指定的hashKey

     * @returntrue:成功 

     * false:失败

     */

    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数组

     * @param <T>

     * @param key缓存key

     * @param map缓存map

     * @param seconds秒数

     * @returntrue:成功 

     * false:失败

     */

    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缓存key

     * @param hashKeymap的Key值

     * @param valuemap的value值

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 缓存存入List

     * @param <T>

     * @param key缓存key

     * @param list缓存List

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 根据key值取出对应的list合集

     * @param key缓存key

     * @return List<Object> 缓存中对应的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;

    }

 

    /**

     * 根据key值截取对应的list合集

     * @param key缓存key

     * @param start开始位置

     * @param end结束位置

     * @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合集中指定位置的对象

     * @param key缓存key

     * @param index索引位置

     * @return Objectlist指定索引位置的对象

     */

    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缓存key

     * @param valueList中的值

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 缓存存入List

     * @param <T>

     * @param key缓存key

     * @param list缓存List

     * @param seconds秒数

     * @returntrue:成功 

     * false:失败

     */

    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集合存入缓存

     * @param <T>

     * @param key缓存key

     * @param set缓存set集合

     * @returntrue:成功 

     * false:失败

     */

    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缓存key

     * @param value增加的value

     * @returntrue:成功 

     * false:失败

     */

    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集合存入缓存

     * @param <T>

     * @param key缓存key

     * @param set缓存set集合

     * @param seconds秒数

     * @returntrue:成功 

     * false:失败

     */

    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;

    }

 

    /**

     * 取出缓存中对应的set合集

     * @param <T>

     * @param key缓存key

     * @return Set<Object> 缓存中的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;

    }

 

    /**

     * 有序集合存入数值

     * @param key缓存key

     * @param value缓存value

     * @param score评分

     * @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;

    }

 

    /**

     * 从有序集合中删除指定值

     * @param key缓存key

     * @param value缓存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;

    }

 

    /**

     * 从有序集合中删除指定位置的值

     * @param key缓存key

     * @param start起始位置

     * @param end结束为止

     * @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;

    }

 

    /**

     * 从有序集合中获取指定位置的值

     * @param key缓存key

     * @param start起始位置

     * @param end结束为止

     * @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();

    }

}

package com.test.util;

 

 

import org.springframework.beans.BeansException;

import org.springframework.context.ApplicationContext;

import org.springframework.context.ApplicationContextAware;

import org.springframework.stereotype.Component;

 

 

/**

 * Context 工具类

 */

@SuppressWarnings("static-access")

@Component

public class CacheContextUtil implements ApplicationContextAware {

    private static ApplicationContext commonApplicationContext;

 

 

    @Override

    public void setApplicationContext(ApplicationContext context) throws BeansException {

this.commonApplicationContext = context;

    }

 

 

    /**

     * 根据提供的bean名称得到相应的服务类

     * @param beanId bean的id

     * @return 返回bean的实例对象

     */

    public static Object getBean(String beanId) {

return commonApplicationContext.getBean(beanId);

    }

 

 

    /**

     * 根据提供的bean名称得到对应于指定类型的服务类

     * @param beanId bean的id

     * @param clazz bean的类类型

     * @return 返回的bean类型,若类型不匹配,将抛出异常

     */

    public static <T> T getBean(String beanId, Class<T> clazz) {

return commonApplicationContext.getBean(beanId, clazz);

    }

}

 

六 、测试代码

@RequestMapping("redis")

    public String redisTest() {

try {

    boolean b = CacheUtil.setString("123", "redis");//向redis里存字符串 key-value

    System.out.println(b);//true成功，

    System.out.println(CacheUtil.getString("123"));//从radis里取数据 key

} catch (Exception e) {

    e.printStackTrace();

    return null;

}

return "hello";

    }

访问这个地址请求时，用到了我们封装的工具类，用缓存操作string的存取。测试结果如下图

 

 

 

 根据测试可知，Spring集成redis成功。