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springmvc集成使用redis过程

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Redis安装

首先安装redis。这个就不重点介绍了。windos下载redis就行.

我用的是mac 。

用命令行安装的.

安装命令 。

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yum install redis

运行命令 。

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sudo redis-server

这样就安装运行成功了.

spring集成redis

首先你需要下载驱动包，下载 jedis.jar，确保下载最新驱动包。然后导包.

在spring配置文件里我这是ApplicationContext .xml文件添加 。

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<!-- 引入同文件夹下的redis属性配置文件 -->
  < import resource = "spring-redis.xml" />

然后用创建spring-redis.xml文件 。

写入 。

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<? 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">
        
     <!-- 缓存的层级-->
     < context:component-scan base-package = "com.niit.cache" />
     <!-- 引入redis配置 -->
     < context:property-placeholder location = "/WEB-INF/classes/redis.properties" ignore-unresolvable = "true" />
 
     <!-- Redis 配置 -->
     < bean id = "jedisPoolConfig" class = "redis.clients.jedis.JedisPoolConfig" >
         < property name = "maxTotal" value = "${redis.pool.maxTotal}" />
         < property name = "maxIdle" value = "${redis.pool.maxIdle}" />
         < property name = "maxWaitMillis" value = "${redis.pool.maxWaitMillis}" />
         < property name = "testOnBorrow" value = "${redis.pool.testOnBorrow}" />
     </ bean >
 
     <!-- JedisCluster 集群高可用配置 -->
     <!--<bean id="jedisCluster" class="redis.clients.jedis.JedisCluster">
         <constructor-arg index="0">
             <set>
                 <bean class="redis.clients.jedis.HostAndPort">
                     <constructor-arg index="0" value="${redis.ip1}" />
                     <constructor-arg index="1" value="${redis.port1}" type="int" />
                 </bean>
                 <bean class="redis.clients.jedis.HostAndPort">
                     <constructor-arg index="0" value="${redis.ip2}" />
                     <constructor-arg index="1" value="${redis.port2}" type="int" />
                 </bean>
                 <bean class="redis.clients.jedis.HostAndPort">
                     <constructor-arg index="0" value="${redis.ip3}" />
                     <constructor-arg index="1" value="${redis.port3}" type="int" />
                 </bean>
                 <bean class="redis.clients.jedis.HostAndPort">
                     <constructor-arg index="0" value="${redis.ip4}" />
                     <constructor-arg index="1" value="${redis.port4}" type="int" />
                 </bean>
                 <bean class="redis.clients.jedis.HostAndPort">
                     <constructor-arg index="0" value="${redis.ip5}" />
                     <constructor-arg index="1" value="${redis.port5}" type="int" />
                 </bean>
                 <bean class="redis.clients.jedis.HostAndPort">
                     <constructor-arg index="0" value="${redis.ip6}" />
                     <constructor-arg index="1" value="${redis.port6}" type="int" />
                 </bean>
             </set>
         </constructor-arg>
         <constructor-arg index="1" value="2000" type="int"></constructor-arg>
         <constructor-arg index="2" value="100" type="int"></constructor-arg>
         <constructor-arg index="3" ref="jedisPoolConfig"></constructor-arg>
     </bean>-->
 
     <!--redis Sentinel主从高可用方案配置 -->
     <!-- <bean id="sentinelConfiguration" class="org.springframework.data.redis.connection.RedisSentinelConfiguration">
         <property name="master">
             <bean class="org.springframework.data.redis.connection.RedisNode">
                 <property name="name" value="master-1"></property>
             </bean>
         </property>
         <property name="sentinels">
             <set>
                 <bean class="org.springframework.data.redis.connection.RedisNode">
                     <constructor-arg name="host" value="${sentinel1.ip}"></constructor-arg>
                     <constructor-arg name="port" value="${sentinel1.port}"></constructor-arg>
                 </bean>
                 <bean class="org.springframework.data.redis.connection.RedisNode">
                     <constructor-arg name="host" value="${sentinel2.ip}"></constructor-arg>
                     <constructor-arg name="port" value="${sentinel2.port}"></constructor-arg>
                 </bean>
                 <bean class="org.springframework.data.redis.connection.RedisNode">
                     <constructor-arg name="host" value="${sentinel3.ip}"></constructor-arg>
                     <constructor-arg name="port" value="${sentinel3.port}"></constructor-arg>
                 </bean>
             </set>
         </property>
     </bean>
     <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" p:use-pool="true">
         <property name="password" value="${redis.pass}" />
         <property name="poolConfig">
             <ref bean="jedisPoolConfig" />
         </property>
         <constructor-arg name="sentinelConfig" ref="sentinelConfiguration" />
     </bean> -->
 
     <!-- redis单节点数据库连接配置 -->
     < bean id = "jedisConnectionFactory" class = "org.springframework.data.redis.connection.jedis.JedisConnectionFactory" >
         < property name = "hostName" value = "${redis.ip}" />
         < property name = "port" value = "${redis.port}" />
         < property name = "password" value = "${redis.pass}" />
         < property name = "poolConfig" ref = "jedisPoolConfig" />
     </ bean >
 
     <!-- redisTemplate配置，redisTemplate是对Jedis的对redis操作的扩展，有更多的操作，封装使操作更便捷 -->
     < bean id = "redisTemplate" class = "org.springframework.data.redis.core.StringRedisTemplate" >
         < property name = "connectionFactory" ref = "jedisConnectionFactory" />
     </ bean >
    
</ beans >
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public class RedisCache {
     public final static String CAHCENAME = "niitcache" ; // 缓存名
     public final static int CAHCETIME = 60 ; // 默认缓存时间 60S
     public final static int CAHCEHOUR = 60 * 60 ; // 默认缓存时间 1hr
     public final static int CAHCEDAY = 60 * 60 * 24 ; // 默认缓存时间 1Day
     public final static int CAHCEWEEK = 60 * 60 * 24 * 7 ; // 默认缓存时间 1week
     public final static int CAHCEMONTH = 60 * 60 * 24 * 7 * 30 ; // 默认缓存时间 1month
 
     @Autowired
     private RedisTemplate<String, String> redisTemplate;
     public <T> boolean putCache(String key, T obj) {
         final byte [] bkey = key.getBytes();
         final byte [] bvalue = ProtoStuffSerializerUtil.serialize(obj);
         boolean result = redisTemplate.execute( new RedisCallback<Boolean>() {
             @Override
             public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
                 return connection.setNX(bkey, bvalue);
             }
         });
         return result;
     }
 
     public <T> void putCacheWithExpireTime(String key, T obj, final long expireTime) {
         final byte [] bkey = key.getBytes();
         final byte [] bvalue = ProtoStuffSerializerUtil.serialize(obj);
         redisTemplate.execute( new RedisCallback<Boolean>() {
             @Override
             public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
                 connection.setEx(bkey, expireTime, bvalue);
                 return true ;
             }
         });
     }
 
     public <T> boolean putListCache(String key, List<T> objList) {
         final byte [] bkey = key.getBytes();
         final byte [] bvalue = ProtoStuffSerializerUtil.serializeList(objList);
         boolean result = redisTemplate.execute( new RedisCallback<Boolean>() {
             @Override
             public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
                 return connection.setNX(bkey, bvalue);
             }
         });
         return result;
     }
 
     public <T> boolean putListCacheWithExpireTime(String key, List<T> objList, final long expireTime) {
         final byte [] bkey = key.getBytes();
         final byte [] bvalue = ProtoStuffSerializerUtil.serializeList(objList);
         boolean result = redisTemplate.execute( new RedisCallback<Boolean>() {
             @Override
             public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
                 connection.setEx(bkey, expireTime, bvalue);
                 return true ;
             }
         });
         return result;
     }
 
     public <T> T getCache( final String key, Class<T> targetClass) {
         byte [] result = redisTemplate.execute( new RedisCallback< byte []>() {
             @Override
             public byte [] doInRedis(RedisConnection connection) throws DataAccessException {
                 return connection.get(key.getBytes());
             }
         });
         if (result == null ) {
             return null ;
         }
         return ProtoStuffSerializerUtil.deserialize(result, targetClass);
     }
 
     public <T> List<T> getListCache( final String key, Class<T> targetClass) {
         byte [] result = redisTemplate.execute( new RedisCallback< byte []>() {
             @Override
             public byte [] doInRedis(RedisConnection connection) throws DataAccessException {
                 return connection.get(key.getBytes());
             }
         });
         if (result == null ) {
             return null ;
         }
         return ProtoStuffSerializerUtil.deserializeList(result, targetClass);
     }
 
     /**
      * 精确删除key
      *
      * @param key
      */
     public void deleteCache(String key) {
         redisTemplate.delete(key);
     }
 
     /**
      * 模糊删除key
      *
      * @param pattern
      */
     public void deleteCacheWithPattern(String pattern) {
         Set<String> keys = redisTemplate.keys(pattern);
         redisTemplate.delete(keys);
     }
 
     /**
      * 清空所有缓存
      */
     public void clearCache() {
         deleteCacheWithPattern(RedisCache.CAHCENAME + "|*" );
     }
}

创建redis的配置文件 redis.properties.

写入 。

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#redis config
redis.pass=
redis.pool.maxTotal= 105
redis.pool.maxIdle= 10
redis.pool.maxWaitMillis= 5000
redis.pool.testOnBorrow= true
 
redis.ip= 127.0 . 0.1
redis.port= 6379

这些根据自己的需求自定义配置就好了 。

这样redis就继承好了 。

SpringMVC中使用redis

创建一个redisCache类 。

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import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
import com.niit.util.ProtoStuffSerializerUtil;
import java.util.List;
import java.util.Set;
 
/**
  * redis缓存
  *
  * @author James
  *
  */
@Component
public class RedisCache {
 
     public final static String CAHCENAME = "niitcache" ; // 缓存名
     public final static int CAHCETIME = 60 ; // 默认缓存时间 60S
     public final static int CAHCEHOUR = 60 * 60 ; // 默认缓存时间 1hr
     public final static int CAHCEDAY = 60 * 60 * 24 ; // 默认缓存时间 1Day
     public final static int CAHCEWEEK = 60 * 60 * 24 * 7 ; // 默认缓存时间 1week
     public final static int CAHCEMONTH = 60 * 60 * 24 * 7 * 30 ; // 默认缓存时间 1month
 
     @Autowired
     private RedisTemplate<String, String> redisTemplate;
     public <T> boolean putCache(String key, T obj) {
         final byte [] bkey = key.getBytes();
         final byte [] bvalue = ProtoStuffSerializerUtil.serialize(obj);
         boolean result = redisTemplate.execute( new RedisCallback<Boolean>() {
             @Override
             public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
                 return connection.setNX(bkey, bvalue);
             }
         });
         return result;
     }
 
     public <T> void putCacheWithExpireTime(String key, T obj, final long expireTime) {
         final byte [] bkey = key.getBytes();
         final byte [] bvalue = ProtoStuffSerializerUtil.serialize(obj);
         redisTemplate.execute( new RedisCallback<Boolean>() {
             @Override
             public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
                 connection.setEx(bkey, expireTime, bvalue);
                 return true ;
             }
         });
     }
 
     public <T> boolean putListCache(String key, List<T> objList) {
         final byte [] bkey = key.getBytes();
         final byte [] bvalue = ProtoStuffSerializerUtil.serializeList(objList);
         boolean result = redisTemplate.execute( new RedisCallback<Boolean>() {
             @Override
             public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
                 return connection.setNX(bkey, bvalue);
             }
         });
         return result;
     }
 
     public <T> boolean putListCacheWithExpireTime(String key, List<T> objList, final long expireTime) {
         final byte [] bkey = key.getBytes();
         final byte [] bvalue = ProtoStuffSerializerUtil.serializeList(objList);
         boolean result = redisTemplate.execute( new RedisCallback<Boolean>() {
             @Override
             public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
                 connection.setEx(bkey, expireTime, bvalue);
                 return true ;
             }
         });
         return result;
     }
 
     public <T> T getCache( final String key, Class<T> targetClass) {
         byte [] result = redisTemplate.execute( new RedisCallback< byte []>() {
             @Override
             public byte [] doInRedis(RedisConnection connection) throws DataAccessException {
                 return connection.get(key.getBytes());
             }
         });
         if (result == null ) {
             return null ;
         }
         return ProtoStuffSerializerUtil.deserialize(result, targetClass);
     }
 
     public <T> List<T> getListCache( final String key, Class<T> targetClass) {
         byte [] result = redisTemplate.execute( new RedisCallback< byte []>() {
             @Override
             public byte [] doInRedis(RedisConnection connection) throws DataAccessException {
                 return connection.get(key.getBytes());
             }
         });
         if (result == null ) {
             return null ;
         }
         return ProtoStuffSerializerUtil.deserializeList(result, targetClass);
     }
 
     /**
      * 精确删除key
      *
      * @param key
      */
     public void deleteCache(String key) {
         redisTemplate.delete(key);
     }
 
     /**
      * 模糊删除key
      *
      * @param pattern
      */
     public void deleteCacheWithPattern(String pattern) {
         Set<String> keys = redisTemplate.keys(pattern);
         redisTemplate.delete(keys);
     }
 
     /**
      * 清空所有缓存
      */
     public void clearCache() {
         deleteCacheWithPattern(RedisCache.CAHCENAME + "|*" );
     }
}

写进和读取redis

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<span style= "white-space:pre" >  </span>String v = "test" ;
   cache.putCacheWithExpireTime( "key" , v, cache.CAHCEHOUR);
   String value = cache.getCache( "key" , String. class );
   System.out.println(value);

然后集成成功。redis是将数据放进内存里。所以需要考虑做redis服务器时候的内存性能，还有redis的缓存策略等等.

以上为个人经验，希望能给大家一个参考，也希望大家多多支持我.

原文链接：https://blog.csdn.net/qq_24046745/article/details/52702261 。

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