IDEA SSM整合Redis项目实例附源码

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摘要

idea SSM整合Redis项目实例 1、pom.xml 配置 <!-- https://mvnrepository.com/artifact/redis.client

idea SSM整合Redis项目实例

1、pom.xml 配置


 <!-- https://mvnrepository.com/artifact/redis.clients/jedis -->
    <dependency>
      <groupId>redis.clients</groupId>
      <artifactId>jedis</artifactId>
      <version>2.9.0</version>
    </dependency>

2、spring-redis.xml 配置


<?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>

3、redis.properties 配置


redis.hostname=Redis所在服务器ip
redis.port=6379
redis.database=0
redis.pool.maxActive=100
redis.pool.maxIdle=20
redis.pool.maxWait=3000
redis.pool.testOnBorrow=true

4、redis连接池和工具类 JedisUtil.java


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);
    }
  }

}

5、JedisPoolWriper.java


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;
	}

}

6、然后我们的Jedis就可以用了

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;
}

以上就是IDEA SSM整合Redis项目实例的详细内容，更多关于IDEA SSM整合Redis的资料请关注编程网其它相关文章！

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