Java Spring and Redis operations package source code

Redis is an open source, advanced key-value Storage and a perfect solution for building high-performance, scalable Web applications.

The three main features that Redis inherits from its many competitions are:

The Redis database is completely in memory and uses disk for persistence only.

Redis has a rich set of data types compared to many key-value data stores.

Redis can replicate data to any number of slave servers.

The advantages of Redis are as follows:

Exceptionally fast: Redis is very fast and can perform about 110,000 episodes per second, about 81000 + records per second.

Support for rich data types: Redis support Most developers already know like lists, collections, ordered collections, hash data types. This makes it very easy to solve a wide variety of problems because we know which issues are better than the data types that can be handled through it.

Operations are atomic: All Redis operations are atomic, which ensures that Redis servers accessed by two clients at the same time will get the updated values.

Multifunction utility: Redis is a versatile tool that can be used in multiple uses such as cache, message, queue (Redis native support publish/subscribe), any transient data, applications such as Web application sessions, Web page hits count etc.

Spring-data-redis Package Redisservice operation package source code as follows:

package com.yoodb.service;import java.util.arraylist;import java.util.hashset;import  java.util.list;import java.util.map;import java.util.set;import javax.annotation.resource; import org.apache.shiro.dao.dataaccessexception;import  org.springframework.data.redis.connection.datatype;import  org.springframework.data.redis.connection.redisconnection;import  org.springframework.data.redis.connection.redislistcommands.position;import  org.springframework.data.redis.connection.rediszsetcommands.tuple;import  org.springframework.data.redis.connection.sortparameters;import  org.springframework.data.redis.core.rediscallback;import  org.springframework.data.redis.core.redistemplate;import  org.springframework.data.redis.serializer.redisserializer;import org.springframework.stereotype.service;/ ** *  @author  yoodb * @   Motobumi  *  @url  www.yoodb.com * @ Note   Reprint Please specify WWW.YOODB.com *  @param  <K> *  @param  <v> */@Servicepublic  class  copyofredisservice<k, v> {@Resource (name =  "redistemplate") protected  redistemplate<k, v> redistemplate;/** *  Set Key */public boolean set ( Final string key, final string value)  {if  (redistemplate != null)  {redistemplate.execute (New rediscallback<boolean> ()  {public boolean doinredis ( Redisconnection connection) throws dataaccessexception {redisserializer<string>  Serializer = getredisserializer (); Byte[] keys = serializer.serialize (key); byte[]  values = serializer.serialize (value); Connection.set (keys, values); return true;}); Return false;} /** *  Get Object  */public string get (Final string key) based on key  {if  ( redistemplate != null)  {redistemplate.execute (new rediscallback<string> ()  {public String  doinredis (redisconnection connection) throws dataaccessexception {redisserializer< String> serializer = getredisserializer (); Byte[] keys = serializer.serialize ( key); Byte[] values = connection.get (keys);if  (values == null)  {return  null;} String value = serializer.deserialize (values); return value;});} Return null;} /** *  Delete  *  @param  key *  @return  */public long del based on key (final  string key)  {if  (redistemplate != null)  {redistemplate.execute (new  Rediscallback<long> ()  {public long doinredis (redisconnection connection) throws  Dataaccessexception {redisserializer<string> serializer = getredisserializer (); byte[ ] keys = Serializer.serialize (key); Return connection.del (keys);}}); Return null;} /** *  Execute  *  @param  key *  @param  value *  @return  */after a certain period of time Public boolean expire (Final string key, final long value)  {if  ( Redistemplate != null)  {redistemplate.execute (new rediscallback<boolean> ()  { Public boolean doinredis (redisconnection connection) throws dataaccessexception { Redisserializer<string> serializer = getredisserializer ();byte[] keys =  Serializer.serialize (key); Return connection.expire (Keys, value);}}); Return false;} /** *  expires at some point  *  @param  key *  @param  value *  @return  */ Public boolean expireat (Final string key, final long value)  {if  ( redistemplate != null)  {redistemplate.execute (NEW rediscallback<boolean> ()  {public boolean doinredis (RedisConnection connection ) throws dataaccessexception {redisserializer<string> serializer =  Getredisserializer (); Byte[] keys = serializer.serialize (key); Return connection.expireat ( Keys, value);}});} Return false;} /** *  query remaining time  *  @param  key *  @param  value *  @return  */ Public long ttl (Final string key, final long value)  {if  ( Redistemplate != null)  {redistemplate.execute (new rediscallback<long> ()  {public  long doinredis (redisconnection connection) throws dataaccessexception { Redisserializer<string> serializer = getredisserializer ();byte[] keys =  Serializer.serialize (key); Return connection.ttl (keys);}}); return 0l;} /** *  determine if key exists  * @param key *  @return  */public boolean exists (final string key)  {if   (Redistemplate != null)  {redistemplate.execute (new rediscallback<boolean> ()  {public boolean doinredis (redisconnection connection) throws dataaccessexception  {redisserializer<string> serializer = getredisserializer (); byte[] keys =  serializer.serialize (key); return connection.exists (keys);}}); Return false;} /** *  returns the type of value stored  key   *  @param  key *  @return  */public  Datatype type (Final string key)  {if  (redistemplate != null)  { Redistemplate.execute (New rediscallback<datatype> ()  {public datatype doinredis ( Redisconnection connection) throws dataaccessexception {redisserializer<string>  Serializer = getredisserializer (); byte[] kEys = serializer.serialize (key); Return connection.type (keys);}}); Return null;} /** *  the string value stored by  key , sets or clears the bit (bit)  *  @param  key *  @param on the specified offset  offset *  @param  value *  @return  */public boolean setbit (final  string key,final long offset,final boolean value)  {if  (redisTemplate  != null)  {redistemplate.execute (new rediscallback<boolean> ()  {public  Boolean doinredis (redisconnection connection) Throws dataaccessexception {redisserializer <string> serializer = getredisserializer ();byte[] keys =  Serializer.serialize (key); Connection.setbit (keys,offset,value); return true;}); Return false;} /** *  the string value stored by  key , gets the bit (bit) on the specified offset  *  @param  key *  @param   value *  @return  */public boolean gEtbit (Final string key ,final long value)  {if  (redistemplate !=  NULL)  {redistemplate.execute (new rediscallback<boolean> ()  {public Boolean  Doinredis (redisconnection connection) throws dataaccessexception {redisserializer<string>  serializer = getredisserializer (); Byte[] keys = serializer.serialize (key); Return connection.getbit (Keys, value);}});} Return false;} /** *   value  parameter Overwrite (overwrite) given  key  stored string value, from offset  offset  start  *   @param  key *  @param  offset *  @param  value *  @return  */ Public boolean setrange (final string key,final long offset,final string  value)  {if  (redistemplate != null)  {redistemplate.execute (new  Rediscallback<boolean> ()  {public boolean doinredis (RedisconNection connection) Throws dataaccessexception {redisserializer<string> serializer  = getredisserializer (); Byte[] keys = serializer.serialize (key); byte[] values  = serializer.serialize (value); Connection.setrange (keys,values,offset); return true;}); Return false;} /** *  returns a substring of the string value in  key , and the Intercept range of the string is determined by the  start  and  end  two offsets  * @ param key *  @param  startOffset *  @param  endOffset *  @return   */public byte[] getrange (Final string key,final long startoffset,final long  endoffset)  {if  (redistemplate != null)  {redistemplate.execute (new  Rediscallback<byte[]> ()  {public byte[] doinredis (redisconnection connection) throws  dataaccessexception {redisserializer<string> serializer = getredisserializer () ; Byte[] keys = serializer.serialize (key); Return connection.getrange (Keys,startoffset,endoffset);}}); Return null;} /** *  Delete Object  , dependency key */public void delete (String key)  {List<String>  list = new ArrayList<String> (); List.add (key);d elete (list);} /** *  Delete collection &nbsp, dependent on key collection  */@SuppressWarnings ("Unchecked") Private void delete (list< String> keys)  {redistemplate.delete ((K)  keys);} /** *  remove elements in the list that are equal to the parameters  value  equality  *  @param  keystr *, based on the value of the parameter  count    @param  count *  @param  valueStr *  @return  */public long lrem (Final string key, final long count, final string value)  {if   (Redistemplate != null)  {redistemplate.execute (new rediscallback<long> ()   {Public long doinredis (redisconnection connection) THROWS&NBSp;dataaccessexception {redisserializer<string> serializer = getredisserializer (); Byte[] keys = serializer.serialize (key); Byte[] values = serializer.serialize ( value); Return connection.lrem (keys, count, values);}}); return null;    }/** *  inserting one or more values  value  into the list  key  header  *  @param  keyStr *  @param  valueStr *  @return  */public long  lpush (Final string key, final string value)  {if  (redistemplate ! = null)  {redistemplate.execute (new rediscallback<long> ()  {public Long  Doinredis (redisconnection connection) throws dataaccessexception {redisserializer<string>  serializer = getredisserializer (); Byte[] keys = serializer.serialize (key); byte[ ] values = serializer.serialize (value);return Connection.lpush (keys, values);}});} return null;     The content is not complete ... Note      all source address    http://www.yoodb.com/article/display/1065

Java Spring and Redis operations package source code