这篇文章给大家分享的是有关idea SSM整合Redis项目的示例分析的内容。小编觉得挺实用的,因此分享给大家做个参考,一起跟随小编过来看看吧。IDEA SSM整合Redis项目实例1、pom.xml 配置 <!--&nbs
这篇文章给大家分享的是有关idea SSM整合Redis项目的示例分析的内容。小编觉得挺实用的,因此分享给大家做个参考,一起跟随小编过来看看吧。
IDEA SSM整合Redis项目实例
<!-- https://mvnrepository.com/artifact/redis.clients/jedis --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version> </dependency>
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="Http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"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"><!-- Redis连接池的设置 --><bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"><!-- 控制一个pool可分配多少个jedis实例 --><property name="maxTotal" value="${redis.pool.maxActive}" /><!-- 连接池中最多可空闲maxIdle个连接 ,这里取值为20,表示即使没有数据库连接时依然可以保持20空闲的连接,而不被清除,随时处于待命状态。 --><property name="maxIdle" value="${redis.pool.maxIdle}" /><!-- 最大等待时间:当没有可用连接时,连接池等待连接被归还的最大时间(以毫秒计数),超过时间则抛出异常 --><property name="maxWaitMillis" value="${redis.pool.maxWait}" /><!-- 在获取连接的时候检查有效性 --><property name="testOnBorrow" value="${redis.pool.testOnBorrow}" /></bean><!-- 创建Redis连接池,并做相关配置 --><bean id="jedisWritePool" class="com.mlr.controller.cache.JedisPoolWriper"depends-on="jedisPoolConfig"><constructor-arg index="0" ref="jedisPoolConfig" /><constructor-arg index="1" value="${redis.hostname}" /><constructor-arg index="2" value="${redis.port}" type="int" /></bean><!-- 创建Redis工具类,封装好Redis的连接以进行相关的操作 --><bean id="jedisUtil" class="com.mlr.controller.cache.JedisUtil" scope="singleton"><property name="jedisPool"><ref bean="jedisWritePool" /></property></bean><!-- Redis的key操作 --><bean id="jedisKeys" class="com.mlr.controller.cache.JedisUtil$Keys"scope="singleton"><constructor-arg ref="jedisUtil"></constructor-arg></bean><!-- Redis的Strings操作 --><bean id="jedisStrings" class="com.mlr.controller.cache.JedisUtil$Strings"scope="singleton"><constructor-arg ref="jedisUtil"></constructor-arg></bean><!-- Redis的Lists操作 --><bean id="jedisLists" class="com.mlr.controller.cache.JedisUtil$Lists"scope="singleton"><constructor-arg ref="jedisUtil"></constructor-arg></bean><!-- Redis的Sets操作 --><bean id="jedisSets" class="com.mlr.controller.cache.JedisUtil$Sets"scope="singleton"><constructor-arg ref="jedisUtil"></constructor-arg></bean><!-- Redis的HashMap操作 --><bean id="jedisHash" class="com.mlr.controller.cache.JedisUtil$Hash"scope="singleton"><constructor-arg ref="jedisUtil"></constructor-arg></bean></beans>
redis.hostname=Redis所在服务器ipredis.port=6379redis.database=0redis.pool.maxActive=100redis.pool.maxIdle=20redis.pool.maxWait=3000redis.pool.testOnBorrow=true
package com.mlr.controller.cache;import com.mlr.controller.cache.JedisPoolWriper;import java.util.List;import java.util.Map;import java.util.Set;import redis.clients.jedis.BinaryClient.LIST_POSITION;import redis.clients.jedis.Jedis;import redis.clients.jedis.JedisPool;import redis.clients.jedis.SortingParams;import redis.clients.util.SafeEncoder;public class JedisUtil { private final int expire = 60000; public Keys KEYS; public Strings STRINGS; public Lists LISTS; public Sets SETS; public Hash HASH; private JedisPool jedisPool; public JedisPool getJedisPool() { return jedisPool; } public void setJedisPool(JedisPoolWriper jedisPoolWriper) { this.jedisPool = jedisPoolWriper.getJedisPool(); } public Jedis getJedis() { return jedisPool.getResource(); } public void expire(String key, int seconds) { if (seconds <= 0) { return; } Jedis jedis = getJedis(); jedis.expire(key, seconds); jedis.close(); } public void expire(String key) { expire(key, expire); } // *******************************************Keys*******************************************// public class Keys { public Keys(JedisUtil jedisUtil) { } public String flushAll() { Jedis jedis = getJedis(); String stata = jedis.flushAll(); jedis.close(); return stata; } public String rename(String oldkey, String newkey) { return rename(SafeEncoder.encode(oldkey), SafeEncoder.encode(newkey)); } public long renamenx(String oldkey, String newkey) { Jedis jedis = getJedis(); long status = jedis.renamenx(oldkey, newkey); jedis.close(); return status; } public String rename(byte[] oldkey, byte[] newkey) { Jedis jedis = getJedis(); String status = jedis.rename(oldkey, newkey); jedis.close(); return status; } public long expired(String key, int seconds) { Jedis jedis = getJedis(); long count = jedis.expire(key, seconds); jedis.close(); return count; } public long expireAt(String key, long timestamp) { Jedis jedis = getJedis(); long count = jedis.expireAt(key, timestamp); jedis.close(); return count; } public long ttl(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); long len = sjedis.ttl(key); sjedis.close(); return len; } public long persist(String key) { Jedis jedis = getJedis(); long count = jedis.persist(key); jedis.close(); return count; } public long del(String... keys) { Jedis jedis = getJedis(); long count = jedis.del(keys); jedis.close(); return count; } public long del(byte[]... keys) { Jedis jedis = getJedis(); long count = jedis.del(keys); jedis.close(); return count; } public boolean exists(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); boolean exis = sjedis.exists(key); sjedis.close(); return exis; } public List<String> sort(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); List<String> list = sjedis.sort(key); sjedis.close(); return list; } public List<String> sort(String key, SortingParams parame) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); List<String> list = sjedis.sort(key, parame); sjedis.close(); return list; } public String type(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); String type = sjedis.type(key); sjedis.close(); return type; } public Set<String> keys(String pattern) { Jedis jedis = getJedis(); Set<String> set = jedis.keys(pattern); jedis.close(); return set; } } // *******************************************Strings*******************************************// public class Strings { public Strings(JedisUtil jedisUtil) { } public String get(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); String value = sjedis.get(key); sjedis.close(); return value; } public byte[] get(byte[] key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); byte[] value = sjedis.get(key); sjedis.close(); return value; } public String set(String key, String value) { return set(SafeEncoder.encode(key), SafeEncoder.encode(value)); } public String set(String key, byte[] value) { return set(SafeEncoder.encode(key), value); } public String set(byte[] key, byte[] value) { Jedis jedis = getJedis(); String status = jedis.set(key, value); jedis.close(); return status; } public String setEx(String key, int seconds, String value) { Jedis jedis = getJedis(); String str = jedis.setex(key, seconds, value); jedis.close(); return str; } public String setEx(byte[] key, int seconds, byte[] value) { Jedis jedis = getJedis(); String str = jedis.setex(key, seconds, value); jedis.close(); return str; } public long setnx(String key, String value) { Jedis jedis = getJedis(); long str = jedis.setnx(key, value); jedis.close(); return str; } public long setRange(String key, long offset, String value) { Jedis jedis = getJedis(); long len = jedis.setrange(key, offset, value); jedis.close(); return len; } public long append(String key, String value) { Jedis jedis = getJedis(); long len = jedis.append(key, value); jedis.close(); return len; } public long decrBy(String key, long number) { Jedis jedis = getJedis(); long len = jedis.decrBy(key, number); jedis.close(); return len; } public long incrBy(String key, long number) { Jedis jedis = getJedis(); long len = jedis.incrBy(key, number); jedis.close(); return len; } public String getrange(String key, long startOffset, long endOffset) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); String value = sjedis.getrange(key, startOffset, endOffset); sjedis.close(); return value; } public String getSet(String key, String value) { Jedis jedis = getJedis(); String str = jedis.getSet(key, value); jedis.close(); return str; } public List<String> mget(String... keys) { Jedis jedis = getJedis(); List<String> str = jedis.mget(keys); jedis.close(); return str; } public String mset(String... keysvalues) { Jedis jedis = getJedis(); String str = jedis.mset(keysvalues); jedis.close(); return str; } public long strlen(String key) { Jedis jedis = getJedis(); long len = jedis.strlen(key); jedis.close(); return len; } } // *******************************************Sets*******************************************// public class Sets { public Sets(JedisUtil jedisUtil) { } public long sadd(String key, String member) { Jedis jedis = getJedis(); long s = jedis.sadd(key, member); jedis.close(); return s; } public long sadd(byte[] key, byte[] member) { Jedis jedis = getJedis(); long s = jedis.sadd(key, member); jedis.close(); return s; } public long scard(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); long len = sjedis.scard(key); sjedis.close(); return len; } public Set<String> sdiff(String... keys) { Jedis jedis = getJedis(); Set<String> set = jedis.sdiff(keys); jedis.close(); return set; } public long sdiffstore(String newkey, String... keys) { Jedis jedis = getJedis(); long s = jedis.sdiffstore(newkey, keys); jedis.close(); return s; } public Set<String> sinter(String... keys) { Jedis jedis = getJedis(); Set<String> set = jedis.sinter(keys); jedis.close(); return set; } public long sinterstore(String newkey, String... keys) { Jedis jedis = getJedis(); long s = jedis.sinterstore(newkey, keys); jedis.close(); return s; } public boolean sismember(String key, String member) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); boolean s = sjedis.sismember(key, member); sjedis.close(); return s; } public Set<String> smembers(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); Set<String> set = sjedis.smembers(key); sjedis.close(); return set; } public Set<byte[]> smembers(byte[] key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); Set<byte[]> set = sjedis.smembers(key); sjedis.close(); return set; } public long smove(String srckey, String dsTKEy, String member) { Jedis jedis = getJedis(); long s = jedis.smove(srckey, dstkey, member); jedis.close(); return s; } public String spop(String key) { Jedis jedis = getJedis(); String s = jedis.spop(key); jedis.close(); return s; } public long srem(String key, String member) { Jedis jedis = getJedis(); long s = jedis.srem(key, member); jedis.close(); return s; } public Set<String> suNIOn(String... keys) { Jedis jedis = getJedis(); Set<String> set = jedis.sunion(keys); jedis.close(); return set; } public long sunionstore(String newkey, String... keys) { Jedis jedis = getJedis(); long s = jedis.sunionstore(newkey, keys); jedis.close(); return s; } } // *******************************************Hash*******************************************// public class Hash { public Hash(JedisUtil jedisUtil) { } public long hdel(String key, String fieid) { Jedis jedis = getJedis(); long s = jedis.hdel(key, fieid); jedis.close(); return s; } public long hdel(String key) { Jedis jedis = getJedis(); long s = jedis.del(key); jedis.close(); return s; } public boolean hexists(String key, String fieid) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); boolean s = sjedis.hexists(key, fieid); sjedis.close(); return s; } public String hget(String key, String fieid) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); String s = sjedis.hget(key, fieid); sjedis.close(); return s; } public byte[] hget(byte[] key, byte[] fieid) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); byte[] s = sjedis.hget(key, fieid); sjedis.close(); return s; } public Map<String, String> hgetAll(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); Map<String, String> map = sjedis.hgetAll(key); sjedis.close(); return map; } public long hset(String key, String fieid, String value) { Jedis jedis = getJedis(); long s = jedis.hset(key, fieid, value); jedis.close(); return s; } public long hset(String key, String fieid, byte[] value) { Jedis jedis = getJedis(); long s = jedis.hset(key.getBytes(), fieid.getBytes(), value); jedis.close(); return s; } public long hsetnx(String key, String fieid, String value) { Jedis jedis = getJedis(); long s = jedis.hsetnx(key, fieid, value); jedis.close(); return s; } public List<String> hvals(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); List<String> list = sjedis.hvals(key); sjedis.close(); return list; } public long hincrby(String key, String fieid, long value) { Jedis jedis = getJedis(); long s = jedis.hincrBy(key, fieid, value); jedis.close(); return s; } public Set<String> hkeys(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); Set<String> set = sjedis.hkeys(key); sjedis.close(); return set; } public long hlen(String key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); long len = sjedis.hlen(key); sjedis.close(); return len; } public List<String> hmget(String key, String... fieids) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); List<String> list = sjedis.hmget(key, fieids); sjedis.close(); return list; } public List<byte[]> hmget(byte[] key, byte[]... fieids) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); List<byte[]> list = sjedis.hmget(key, fieids); sjedis.close(); return list; } public String hmset(String key, Map<String, String> map) { Jedis jedis = getJedis(); String s = jedis.hmset(key, map); jedis.close(); return s; } public String hmset(byte[] key, Map<byte[], byte[]> map) { Jedis jedis = getJedis(); String s = jedis.hmset(key, map); jedis.close(); return s; } } // *******************************************Lists*******************************************// public class Lists { public Lists(JedisUtil jedisUtil) { } public long llen(String key) { return llen(SafeEncoder.encode(key)); } public long llen(byte[] key) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); long count = sjedis.llen(key); sjedis.close(); return count; } public String lset(byte[] key, int index, byte[] value) { Jedis jedis = getJedis(); String status = jedis.lset(key, index, value); jedis.close(); return status; } public String lset(String key, int index, String value) { return lset(SafeEncoder.encode(key), index, SafeEncoder.encode(value)); } public long linsert(String key, LIST_POSITION where, String pivot, String value) { return linsert(SafeEncoder.encode(key), where, SafeEncoder.encode(pivot), SafeEncoder.encode(value)); } public long linsert(byte[] key, LIST_POSITION where, byte[] pivot, byte[] value) { Jedis jedis = getJedis(); long count = jedis.linsert(key, where, pivot, value); jedis.close(); return count; } public String lindex(String key, int index) { return SafeEncoder.encode(lindex(SafeEncoder.encode(key), index)); } public byte[] lindex(byte[] key, int index) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); byte[] value = sjedis.lindex(key, index); sjedis.close(); return value; } public String lpop(String key) { return SafeEncoder.encode(lpop(SafeEncoder.encode(key))); } public byte[] lpop(byte[] key) { Jedis jedis = getJedis(); byte[] value = jedis.lpop(key); jedis.close(); return value; } public String rpop(String key) { Jedis jedis = getJedis(); String value = jedis.rpop(key); jedis.close(); return value; } public long lpush(String key, String value) { return lpush(SafeEncoder.encode(key), SafeEncoder.encode(value)); } public long rpush(String key, String value) { Jedis jedis = getJedis(); long count = jedis.rpush(key, value); jedis.close(); return count; } public long rpush(byte[] key, byte[] value) { Jedis jedis = getJedis(); long count = jedis.rpush(key, value); jedis.close(); return count; } public long lpush(byte[] key, byte[] value) { Jedis jedis = getJedis(); long count = jedis.lpush(key, value); jedis.close(); return count; } public List<String> lrange(String key, long start, long end) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); List<String> list = sjedis.lrange(key, start, end); sjedis.close(); return list; } public List<byte[]> lrange(byte[] key, int start, int end) { // ShardedJedis sjedis = getShardedJedis(); Jedis sjedis = getJedis(); List<byte[]> list = sjedis.lrange(key, start, end); sjedis.close(); return list; } public long lrem(byte[] key, int c, byte[] value) { Jedis jedis = getJedis(); long count = jedis.lrem(key, c, value); jedis.close(); return count; } public long lrem(String key, int c, String value) { return lrem(SafeEncoder.encode(key), c, SafeEncoder.encode(value)); } public String ltrim(byte[] key, int start, int end) { Jedis jedis = getJedis(); String str = jedis.ltrim(key, start, end); jedis.close(); return str; } public String ltrim(String key, int start, int end) { return ltrim(SafeEncoder.encode(key), start, end); } }}
package com.mlr.controller.cache;import redis.clients.jedis.JedisPool;import redis.clients.jedis.JedisPoolConfig;public class JedisPoolWriper {private JedisPool jedisPool;public JedisPoolWriper(final JedisPoolConfig poolConfig, final String host,final int port) {try {jedisPool = new JedisPool(poolConfig, host, port);} catch (Exception e) {e.printStackTrace();}}public JedisPool getJedisPool() {return jedisPool;}public void setJedisPool(JedisPool jedisPool) {this.jedisPool = jedisPool;}}
把我们的业务逻辑中不需要频繁更换的数据保存到redis中,例如,下部分代码:
@Transactional public List<Area> getAreaList(){// 定义redis的key String key = AREALISTKEY; // 定义接收对象 List<Area> areaList = null; // 定义jackson数据转换操作类 ObjectMapper mapper = new ObjectMapper(); // 判断key是否存在if (!jedisKeys.exists(key)) { // 若不存在,则从数据库里面取出相应数据 areaList = areaDao.queryArea(); // 将相关的实体类集合转换成string,存入redis里面对应的key中 String JSONString; try { jsonString = mapper.writeValueAsString(areaList); } catch (JsonProcessingException e) { e.printStackTrace(); logger.error(e.getMessage()); throw new AreaoperationException(e.getMessage()); } jedisStrings.set(key, jsonString); } else { // 若存在,则直接从redis里面取出相应数据 String jsonString = jedisStrings.get(key); // 指定要将string转换成的集合类型 JavaType javaType = mapper.getTypeFactory().constructParametricType(ArrayList.class, Area.class); try { // 将相关key对应的value里的的string转换成对象的实体类集合 areaList = mapper.readValue(jsonString, javaType); } catch (JsonParseException e) { e.printStackTrace(); logger.error(e.getMessage()); throw new AreaOperationException(e.getMessage()); } catch (JsonMappingException e) { e.printStackTrace(); logger.error(e.getMessage()); throw new AreaOperationException(e.getMessage()); } catch (IOException e) { e.printStackTrace(); logger.error(e.getMessage()); throw new AreaOperationException(e.getMessage()); } }return areaList;}
感谢各位的阅读!关于“IDEA SSM整合Redis项目的示例分析”这篇文章就分享到这里了,希望以上内容可以对大家有一定的帮助,让大家可以学到更多知识,如果觉得文章不错,可以把它分享出去让更多的人看到吧!
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本文标题: IDEA SSM整合Redis项目的示例分析
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