Full integration of redis and spring

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Reference http://www.open-open.com/lib/view/open1351324403395.html

Spring http://www.open-open.com/lib/list/354
Data redis implements a subscription/Release System

Spring http://www.blogjava.net/stevenjohn/archive/2012/11/14/391344.html
Redis integration (1)

Download spring-data-redis. Gav is as follows:

<dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-redis</artifactId> <version>1.0.1.RELEASE</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> </exclusion> <exclusion> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> </exclusion> </exclusions>  </dependency>

Exclusion contains two packages because of conflicts with other packages in the project.

The bean configuration is as follows. You can configure and load the bean file in Web. xml:

<Bean id = "rediscachemanager" class = "com. cr. common. cache. base. rediscachemanger "> <property name =" pool "ref =" shardedjedispool "/> </bean> <! -- Jedis connection pool configuration --> <bean id = "jedispoolconfig" class = "redis. clients. jedis. jedispoolconfig "> <property name =" maxactive "value =" $ {redis. pool. maxactive} "/> <property name =" maxidle "value =" $ {redis. pool. maxidle} "/> <property name =" maxwait "value =" $ {redis. pool. maxwait} "/> <property name =" testonborrow "value =" $ {redis. pool. testonborrow} "/> </bean> <! -- Jedis multiple server configurations --> <bean id = "jedisshardinfo1" class = "redis. clients. jedis. jedisshardinfo "> <constructor-Arg Index =" 0 "value =" $ {redis2.ip} "/> <constructor-Arg Index =" 1 "value =" $ {redis. port} "type =" int "/> </bean> <bean id =" jedisshardinfo2 "class =" redis. clients. jedis. jedisshardinfo "> <constructor-Arg Index =" 0 "value =" $ {redis. IP} "/> <constructor-Arg Index =" 1 "value =" $ {redis. port} "type =" int "/> </be An> <bean id = "shardedjedispool" class = "redis. clients. jedis. shardedjedispool "> <constructor-Arg Index =" 0 "ref =" jedispoolconfig "/> <constructor-Arg Index =" 1 "> <list> <ref bean =" jedisshardinfo1 "/> <ref bean = "jedisshardinfo2"/> </List> </constructor-Arg> </bean> <bean id = "connectionfactory" class = "org. springframework. data. redis. connection. jedis. jedisconnectionfactory "> <property name =" hostname "Val UE = "$ {redis. IP} "/> <property name =" Port "value =" $ {redis. port} "/> <property name =" poolconfig "ref =" jedispoolconfig "/> <! -- <Property name = "shardinfo" ref = "shardedjedispool"> </property> --> </bean> <context: Property-placeholder location = "/WEB-INF/spring/systemcontext. properties "/> <context: component-scan base-package =" org. springframework. data. redis. samples "/>

The property file content is as follows:

Redis. IP = 192.168.1.110 redis2.ip = 192.168.1.112 # port redis. port = 6379 # maximum number of allocated objects redis. pool. maxactive = 1024 # maximum number of objects that can maintain the idel status redis. pool. maxidle = 200 # maximum wait time for redis when no objects are returned in the pool. pool. maxwait = 1000 # Check whether redis is effective when the borrow object method is called. pool. testonborrow = true # Check whether redis is effective when the return object method is called. pool. testonreturn = true

Cache Management Interface:

public interface RedisCache {  public <T> T getRedisCacheInfo(String key);  public <T> boolean setRedisCacheInfo(String key, T value);  }

Cache Management implementation:

public class RedisCacheManger implements RedisCache {  private ShardedJedisPool pool ;  private Logger log = Logger.getLogger(RedisCacheManger.class);  public ShardedJedisPool getPool() { return pool; }  public void setPool(ShardedJedisPool pool) { this.pool = pool; }  public <T> T getRedisCacheInfo(String key) {  try { log.info("get from redisCache :"+key); System.out.println("get from rediscache"); ShardedJedis jedis = pool.getResource(); pool.returnResource(jedis); return (T)jedis.get(key); } catch (Exception e) { e.printStackTrace(); } return null; }   public <T> boolean setRedisCacheInfo(String key, T value) {  try { log.info("add to redisCache :"+key); System.out.println("add to rediscache"); ShardedJedis jedis = pool.getResource(); jedis.set(key, (String)value); pool.returnResource(jedis); return true; } catch (Exception e) { e.printStackTrace(); } return false; } public static void main(String[] args) { new RedisCacheManger().setRedisCacheInfo("12345", "asdfg"); } }

Cache aspect annotation:

@Retention(RetentionPolicy.RUNTIME) @Target(ElementType.METHOD) public @interface NeedRedisCached {} 

Cache aspect processing class:

@ Aspect public class rediscacheaspect implements ordered {Private Static logger log = logger. getlogger (rediscacheaspect. class); Private rediscache rediscachemanager; private int ordervalue = 3; Public rediscache getrediscachemanager () {return rediscachemanager;} public void setrediscachemanager (rediscache rediscachemanager) {This. rediscachemanager = rediscachemanager;} @ pointcut ("@ annotation (C Om. JD. bi. ODP. common. cache. core. needrediscached) ") Public void needrediscached () {}@ around (" needrediscached () & ARGs (filter ,..) ") Public object aroundinvoke (proceedingjoinpoint pjp, queryfilter filter) throws throwable {log.info (" Enter aroundinvoke !!! "); If (filter. getvalue () = NULL) {return NULL;} Boolean cacheenabled = commonutil. parseboolean (hbaseconfig. getproperty ("rediscache. enabled "), false); If (cacheenabled) {string md5key = md5util. getmd5 (filter. getvalue (). tostring (); object value = rediscachemanager. getrediscacheinfo (md5key); Boolean flag = false; If (null! = Value) {jsonobject JSON = new jsonobject (value. tostring (); Return JSON;} else if ("null ". equals (value) {return NULL;} else {// execute hbase query value = pjp. proceed (); If (null! = Value) {// determine the non-Cache condition based on the business logic here} else {flag = rediscachemanager. setrediscacheinfo (md5key, value. tostring (); If (FLAG) log.info ("add a cache success by key:" + md5key); else log. warn ("add a cache failure by key:" + md5key) ;}} return value ;}} else {// execute hbase query return pjp. proceed () ;}@ override public int getorder () {return ordervalue;} public int getordervalue () {return ordervalue;} public void setordervalue (INT ordervalue) {This. ordervalue = ordervalue ;}}

If the cache exists, return directly. If the cache does not exist, execute the Data Source Query. hbase queries and set the cache. Section Configuration:

<! -- Redis cache running plane --> <bean id = "rediscacheaspect" class = "com. cr. common. cache. core. rediscacheaspect "> <property name =" ordervalue "value =" 3 "/> <property name =" rediscachemanager "ref =" rediscachemanager "/> </bean> <! -- Configuration declaration --> <AOP: aspectj-autoproxy> <AOP: Include name = "rediscacheaspect"/> </AOP: aspectj-autoproxy>

In this case, if the user's access trigger action on the front-end web page meets the conditions, the slice method will be processed to complete redis cache usage.