Redis installation process and the use of the SSM

Redis Installation Process

Download installation package, unzip, Mac system put folder under/usr/local folder

Open the terminal and install server-side servers first
Terminal $ cd/usr/local/redis/

Go to the file and enter the Redis.config file

Find Requirepass Delete Front #
and modify the password behind the stitching
Save into terminal
Enter command
Terminal $ CD src/
Terminal $./redis-server. /redis.conf
Access to Redis server side
Ctrl + C exit

(If you are prompted without permission in the procedure, add sudo before the command) but in the course of use do not quit and then open a terminal, install client trial
Command
Terminal $ cd/usr/local/redis/src/
Terminal $./redis-cli-a Password
To the Redis client.

Commands for manipulating Redis clients
*
Front is the IP address: port number
Keys * Query for all key
*
Set key and value
* Get Name
Get value from key
* FLUSHDB
Clears data in Redis memory, but does not recommend frequent use, affecting server performance
* del name
You can also delete data by key
* Exit
Exit Redis and SSM in conjunction with

1. Build a SSM project and connect to the database
Below I mainly introduce and Redis related configuration
2. Create Rediscache class, this class is the core of Redis

Package Com.dhl.redis; Redis Cache//Jedis Redis for Java/** * Serialization is the data * will not serialize the class structure * but will serialize the relationship (data corresponding to the class structure)/public class Rediscache implement S cache {///Redis MyBatis Level Two cache implementation//Need intermediate class to static note private static Jedisconnectionfactory jedisconnectionfact

    Ory;

    Private final String ID;


    Private final Readwritelock Readwritelock = new Reentrantreadwritelock (); public static void Setjedisconnectionfactory (Jedisconnectionfactory jedisconnectionfactory) {Rediscache.jedisconn
    Ectionfactory = jedisconnectionfactory;  The Cache object Public Rediscache (String ID) {if (id = = NULL) {//is thrown] {////////throws illegal parameter exceptions by identity construction throw
        New IllegalArgumentException ("Cache ID cannot be empty");
    } this.id = ID;
    /** * Get Cache object's unique standard * * @return/public String getId () {return this.id;  /** * Saves the key/value to the cached object/public void Putobject (object key, Object value) {Jedisconnection JedisconNection = null;


            try {//Operation Readis to save jedisconnection = (jedisconnection) jedisconnectionfactory.getconnection ();

            Create a serialization tool redisserializer<object> serializer = new Jdkserializationredisserializer ();
        Create the connection, save the key's value Jedisconnection.set (Serializer.serialize (key), serializer.serialize (value));
        }catch (jedisconnectionexception e) {e.printstacktrace ();
            }finally {if (jedisconnection!= null) {jedisconnection.close (); 
        The public object GetObject (object key) {//Gets value object result = null from the cached object via key;
        Jedisconnection jedisconnection = null;

            try {//Establish connection Jedisconnection = (jedisconnection) jedisconnectionfactory.getconnection ();

            redisserializer<object> serializer= new Jdkserializationredisserializer (); byte[] bytes = JediscoNnection.get (Serializer.serialize (key)); 1. Serializes key to//2. Gets the serialized value//3 via connection.


            Deserializes the serialized value to result = Serializer.deserialize (bytes); /** * Serialization is the data * will not serialize the class structure * but will serialize the relationship (data corresponding to the class structure)/}catch (Jedi
        Sconnectionexception e) {e.printstacktrace ();
            }finally {if (jedisconnection!= null) {jedisconnection.close ();
    } return result;

        /** * is not a method that needs to be implemented and is not called by the core framework. * Method Action: According to key remove corresponding Value/public object Removeobject (object key) {
        Object result = null;
        Jedisconnection jedisconnection = null;

            try {//Establish connection Jedisconnection = (jedisconnection) jedisconnectionfactory.getconnection ();

            redisserializer<object> serializer= new Jdkserializationredisserializer (); Remove saved to value result = Jedisconnection.expire (Serializer.serialize (key), 0);
        }catch (jedisconnectionexception e) {e.printstacktrace ();
            }finally {if (jedisconnection!= null) {jedisconnection.close ();
    } return result;
        //Clear cache (Operations affect performance, inefficiencies, do not recommend frequent cleanup) public void Clear () {jedisconnection jedisconnection = null;
            try {jedisconnection = (jedisconnection) jedisconnectionfactory.getconnection ();
            Clear Cache Jedisconnection.flushdb ();

        Clear Settings Jedisconnection.flushall (); }catch (jedisconnectionexception e) {}finally {if (jedisconnection!= null) {Jedisco
            Nnection.close ();  /** * Gets the number of key/value accessed in the cached object * @return/public int getsize () {Integer
        Count = 0;
        Jedisconnection jedisconnection = null; try {jedisconnectiOn = (jedisconnection) jedisconnectionfactory.getconnection ();

        Count = integer.valueof (Jedisconnection.dbsize (). toString ()); }catch (jedisconnectionexception e) {}finally {if (jedisconnection!= null) {Jedisco
            Nnection.close ();
    } return count; //Get read/write lock/from MyBatis version 3.2.6, this method is no longer called by the frame core/all required locks, it must be provided by the caching provider to the public Readwritelock Getreadwritelock
    () {return this.readwritelock;
 }
}

3. Create Intermediate Class

Package Com.lanou.redis;

public class Rediscachetransfer {

    @Autowired public
    void Setjedisconnectionfactory (jedisconnectionfactory Jedisconnectionfactory) {
        rediscache.setjedisconnectionfactory (jedisconnectionfactory);
    }
}

4.redis configuration File--(1) redis.properties

# Redis Configuration
redis.host=127.0.0.1
redis.port=6379
redis.pass=111111

redis.maxidl=300
redis.maxactive=600
redis.maxwait=1000

5.redis configuration File--(2) Ssm-redis.xml
This profile can also be written with the Ssm-mybatis.xml configuration file

<?xml version= "1.0" encoding= "UTF-8"?> <beans xmlns= "Http://www.springframework.org/schema/beans" Xmlns:xs I= "Http://www.w3.org/2001/XMLSchema-instance" xmlns:p= "http://www.springframework.org/schema/p" xsi: schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/ Spring-beans.xsd "> <bean id=" propertyconfigurer "class="
            Org.springframework.beans.factory.config.PropertyPlaceholderConfigurer "> <property name=" Locations "> <list> <value>classpath:redis.properties</value> &LT;VALUE&GT;CL asspath:db.properties</value> </list> </property> </bean> <!--building RE Data sources of Dis--> <bean id= "Poolconfig" class= "Redis.clients.jedis.JedisPoolConfig" > <property name= "MaxI" Dle "value=" ${redis.maxidl} "/> <property name=" maxtotal "value=" ${redis.maxactive} "/> &Lt;property name= "Maxwaitmillis" value= "${redis.maxwait}"/> </bean> <bean id= "Jedisconnectionfactory" class= "Org.springframework.data.redis.connection.jedis.JedisConnectionFactory" P:hostname= "${redis.ho ST} "p:port=" ${redis.port} "p:password=" ${redis.pass} "p:poolconfig-ref=" Poolconfig "/> <bean id=" RedisCach Etranfer "class=" Com.lanou.redis.RedisCacheTransfer "> <property name=" jedisconnectionfactory "ref=" Jedisconn Ectionfactory "/> </bean> </beans>

6.mybatis configuration file-–mybatis-config.xml

<?xml version= "1.0" encoding= "UTF-8"?> <! DOCTYPE configuration Public "-//mybatis.org//dtd Config 3.0//en" "Http://mybatis.org/dtd/mybatis-3-config . DTD "> <configuration> <settings> <!--globally enables or disables any caches configured I N any mapper under this configuration--> <setting name= "cacheenabled" value= "true"/> <!--Set S number of seconds the driver would wait for a response from the database--> <setting name= "Defaultstat Ementtimeout "value=" 3000 "/> <!--enables automatic mapping from classic database column names a_column to C 
        Amel Case Classic Java property names Acolumn--> <setting name= "Mapunderscoretocamelcase" value= "true"/> <!--allows JDBC support for generated keys.
        A compatible driver is required. This setting forces generated keys to is used if set to true, as some drivers deny compatibility but still work --> <setting name= "Usegeneratedkeys" value= "true"/> <!--query, close the associated object even when loading, in order to improve performance--> <setting name= "lazyloadingenabled" value= "false"/> <!--allows multiple result sets, the default is true--> <setting name = "Multipleresultsetsenabled" value= "true"/> <!--sets the shape of the associated object loading, where the fields are loaded on demand. Instead of loading all the fields, you have the SQL to determine the--> &L

T;setting name= "aggressivelazyloading" value= "true"/> </settings> <!--Continue going here--> </configuration>

7. Finally, do not forget to configure Ssm-redis.xml in the Web.xml configuration file

8. Can write query statements to test, run successfully after we can go to the terminal, using Redis client, through key * can be found in the memory of the data Redis installation process

Download installation package, unzip, Mac system put folder under/usr/local folder

Open the terminal and install server-side servers first
Terminal $ cd/usr/local/redis/

Go to the file and enter the Redis.config file

Find Requirepass Delete Front #
and modify the password behind the stitching
Save into terminal
Enter command
Terminal $ CD src/
Terminal $./redis-server. /redis.conf
Access to Redis server side
Ctrl + C exit

(If you are prompted without permission in the procedure, add sudo before the command) but in the course of use do not quit and then open a terminal, install client trial
Command
Terminal cd/usr/local/redis/src/Terminal cd/usr/local/redis/src/Terminal./redis-cli-a Password
To the Redis client.

Commands for manipulating Redis clients
*
Front is the IP address: port number
Keys * Query for all key
*
Set key and value
*
Get value from key
*
Clears data in Redis memory, but does not recommend frequent use, affecting server performance
*
You can also delete data by key
*
Exit Redis and SSM in conjunction with

1. Build a SSM project and connect to the database
below I mainly introduce and redis related to the configuration
2. Create Rediscache class, which is the core of Redis

Package Com.dhl.redis; Redis Cache//Jedis Redis for Java/** * Serialization is the data * will not serialize the class structure * but will serialize the relationship (data corresponding to the class structure)/public class Rediscache implement S cache {///Redis MyBatis Level Two cache implementation//Need intermediate class to static note private static Jedisconnectionfactory jedisconnectionfact

    Ory;

    Private final String ID;


    Private final Readwritelock Readwritelock = new Reentrantreadwritelock (); public static void Setjedisconnectionfactory (Jedisconnectionfactory jedisconnectionfactory) {Rediscache.jedisconn
    Ectionfactory = jedisconnectionfactory;  The Cache object Public Rediscache (String ID) {if (id = = NULL) {//is thrown] {////////throws illegal parameter exceptions by identity construction throw
        New IllegalArgumentException ("Cache ID cannot be empty");
    } this.id = ID;
    /** * Get Cache object's unique standard * * @return/public String getId () {return this.id;  /** * Saves the key/value to the cached object/public void Putobject (object key, Object value) {Jedisconnection JedisconNection = null;


            try {//Operation Readis to save jedisconnection = (jedisconnection) jedisconnectionfactory.getconnection ();

            Create a serialization tool redisserializer<object> serializer = new Jdkserializationredisserializer ();
        Create the connection, save the key's value Jedisconnection.set (Serializer.serialize (key), serializer.serialize (value));
        }catch (jedisconnectionexception e) {e.printstacktrace ();
            }finally {if (jedisconnection!= null) {jedisconnection.close (); 
        The public object GetObject (object key) {//Gets value object result = null from the cached object via key;
        Jedisconnection jedisconnection = null;

            try {//Establish connection Jedisconnection = (jedisconnection) jedisconnectionfactory.getconnection ();

            redisserializer<object> serializer= new Jdkserializationredisserializer (); byte[] bytes = JediscoNnection.get (Serializer.serialize (key)); 1. Serializes key to//2. Gets the serialized value//3 via connection.


            Deserializes the serialized value to result = Serializer.deserialize (bytes); /** * Serialization is the data * will not serialize the class structure * but will serialize the relationship (data corresponding to the class structure)/}catch (Jedi
        Sconnectionexception e) {e.printstacktrace ();
            }finally {if (jedisconnection!= null) {jedisconnection.close ();
    } return result;

        /** * is not a method that needs to be implemented and is not called by the core framework. * Method Action: According to key remove corresponding Value/public object Removeobject (object key) {
        Object result = null;
        Jedisconnection jedisconnection = null;

            try {//Establish connection Jedisconnection = (jedisconnection) jedisconnectionfactory.getconnection ();

            redisserializer<object> serializer= new Jdkserializationredisserializer (); Remove saved to value Resul