A simple example of using Redis

1: Import two jar packages in a project

2:

Javabean

 PackageCom.eoopen.xmpp.loginin;Importjava.io.Serializable;Importjava.util.Date; Public classClientuserImplementsserializable{/*** Serialization*/    Private Static Final LongSerialversionuid = 2029803928604452271L;  PublicClientuser () {} PublicClientuser (String clientidentify) {Super();  This. clientidentify =clientidentify; }            /*** Rewrite hashcode * clientidentify the same as representing the same object*/@Override Public inthashcode () {Final intPrime = 31; intresult = 1; Result= Prime *result+ ((clientidentify = =NULL) ? 0: Clientidentify.hashcode ()); returnresult; } @Override Public Booleanequals (Object obj) {if( This==obj)return true; if(obj = =NULL)            return false; if(GetClass ()! =Obj.getclass ())return false; Clientuser Other=(clientuser) obj; if(Clientidentify = =NULL) {            if(Other.clientidentify! =NULL)                return false; } Else if(!clientidentify.equals (other.clientidentify))return false; return true; }        PrivateString ID; PrivateString Clientuserid; /*** Unique identifier for each client (such as format 111223_359776051195305), * This parameter needs to be assembled by the client to the server, * assembled as a uid+ device uniquely identified, * This field is eventually logged in as a client Openfi Re account, * Client login when OpenFire, the account is clientidentity, * Password and client login password consistent*/    PrivateString clientidentify; //system identification, such as eim,lbs    PrivateString serveridentify; //Register OpenFire account Time    PrivateDate Createtime; PrivateDate UpdateTime; //from which client, ios,android,pc    PrivateString ClientType;  PublicString Getclienttype () {returnClientType; }     Public voidSetclienttype (String clienttype) { This. ClientType =ClientType; }     PublicDate Getupdatetime () {returnUpdateTime; }     Public voidsetupdatetime (Date updatetime) { This. UpdateTime =UpdateTime; }     PublicString getserveridentify () {returnserveridentify; }     Public voidsetserveridentify (String serveridentify) { This. serveridentify =serveridentify; }     PublicDate Getcreatetime () {returnCreatetime; }     Public voidsetcreatetime (Date createtime) { This. Createtime =Createtime; }     PublicString getId () {returnID; }     Public voidsetId (String id) { This. ID =ID; }     PublicString Getclientuserid () {returnClientuserid; }     Public voidSetclientuserid (String clientuserid) { This. Clientuserid =Clientuserid; }     PublicString getclientidentify () {returnclientidentify; }     Public voidsetclientidentify (String clientidentify) { This. clientidentify =clientidentify; }}

(2) Example

 PackageCom.eo.test.redis;ImportJava.util.Set;Importorg.junit.Test;ImportOrg.junit.runner.RunWith;Importorg.springframework.beans.factory.annotation.Autowired;Importorg.springframework.data.redis.core.RedisTemplate;Importorg.springframework.data.redis.core.SetOperations;Importorg.springframework.test.context.ContextConfiguration;Importorg.springframework.test.context.junit4.AbstractJUnit4SpringContextTests;ImportOrg.springframework.test.context.junit4.SpringJUnit4ClassRunner;ImportCom.eoopen.xmpp.loginin.ClientUser; the @RunWith (Springjunit4classrunner.class) @ContextConfiguration (Locations= "Classpath:applicationContext.xml") Public classTestzwjextendsabstractjunit4springcontexttests{@AutowiredPrivateredistemplate redistemplate; @SuppressWarnings ("Unchecked") @Test Public voidTestofset () {//Create a set queue
Setoperations<string, clientuser> opsforset =Redistemplate.opsforset (); Clientuser U1=NewClientuser ("11"); Clientuser U2=NewClientuser ("12"); Clientuser U3=NewClientuser ("13"); Clientuser U4=NewClientuser ("14"); Add 4 users to a queue
Opsforset.add ("66666666", U1); Opsforset.add ("66666666", U2); Opsforset.add ("66666666", U3); Opsforset.add ("66666666", U4);
Remove all objects from the queue
Set<ClientUser> members = opsforset.members ("66666666");
Loop through all objects in the print queue
         for(Clientuser clientuser:members) {System.out.println (clientuser.getclientidentify ()); }//Delete one piece of data from the queue
Clientuser U5=NewClientuser ("14");        Members.remove (U5);  for(Clientuser clientuser:members) {System.out.println (clientuser.getclientidentify ()); } Set<ClientUser> members2 = opsforset.members ("66666666");  for(Clientuser clientuser:members2) {System.out.println (clientuser.getclientidentify ()); }    }}

3: Put all the data in the database into the Redis cache

 Public voidInitusercachequeue () {redistemplate redistemplate= (redistemplate) contextutil.getbean ("Redistemplate"); //emptying the collectionRedistemplate.delete (constant.openfire_users);                Redistemplate.delete (constant.client_users); Clientuserservice UserService= (Clientuserservice) contextutil.getbean ("Clientuserservice"); //put all the clientuser data into the Redis cacheList<clientuser> clientusers =Userservice.queryclientuser ();  for(Clientuser clientuser:clientusers) {Redistemplate.opsforset (). Add (Constant.client_users, ClientUser); }                //put all the ofuser data into the Redis cacheList<ofuser> opeofusers =Userservice.queryopenfireuser ();  for(Ofuser ofuser:opeofusers) {Redistemplate.opsforset (). Add (Constant.openfire_users, ofuser); }    }

A simple example of using Redis