redis spring怎么整合

Posted 2023-05-17

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了redis spring怎么整合相关的知识，希望对你有一定的参考价值。

参考技术A redis与Spring集成比较简单，本文不涉及Spring的一些基本概念，读都需先具备Spring的相关知识。
先在maven中添加依赖
pom.xml

<dependency>
‍ <groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.0.0</version>
</dependency> ‍


applicationContext-redis.xml加入你的Spring context
<?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"
xmlns:mongo="http://www.springframework.org/schema/data/mongo"
xsi:schemaLocation="http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0xsd
http://www.springframework.org/schema/data/mongo
http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> <property name="maxActive" value="50" /> 
<property name="maxIdle" value="10" /> 
<property name="maxWait" value="1000" /> 
<property name="testOnBorrow" value="true" />
</bean>
<bean id="jedis.shardInfo" class="redis.clients.jedis.JedisShardInfo">
<constructor-arg index="0" value="172.21.1.121" />
<constructor-arg index="1" value="6379" />
</bean>
<bean id="shardedJedisPool" class="redis.clients.jedis.ShardedJedisPool"> <constructor-arg index="0" ref="jedisPoolConfig" />
<constructor-arg index="1">
<list>
<ref bean="jedis.shardInfo" />
</list>
</constructor-arg>
</bean>
</beans>

RedisDao.java操作redis的类
/**
*
*/package com.zolcorp.mahout.dao;
import org.springframework.beans.factory.annotation.Autowired;
import redis.clients.jedis.ShardedJedis;
import redis.clients.jedis.ShardedJedisPool;
/**
* @author hadoop
*
*/
public class RedisDao
@Autowired
private ShardedJedisPool shardedJedisPool;
public void set(String key, String value)
ShardedJedis jedis = shardedJedisPool.getResource();
jedis.set(key, value);

public String get(String key)
ShardedJedis jedis = shardedJedisPool.getResource();
return jedis.get(key);
‍

其它一些方法，请读者自己完成。
<bean id="redisDao" class="com.zolcorp.mahout.dao.RedisDao"></bean>

注册bean
main函数如下：
/**
*
*/
package com.zolcorp.mahout.main;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContex; import com.zolcorp.mahout.dao.RedisDao;
/**
* @author hadoop
*
*/
public class RedisMain
/**
* @param args
*/
public static void main(String[] args)
ApplicationContext context = new FileSystemXmlApplicationContext( new String[] "classpath:applicationContext-bean.xml",
"classpath:applicationContext-datasource.xml",
"classpath:applicationContext-redis.xml");
RedisDao redisDao = context.getBean("redisDao", RedisDao.class);
redisDao.set("test", "test-----ming...");
System.out.println(redisDao.get("test")); //test-----ming...

本回答被提问者和网友采纳

jedis的使用，spring整合redis，springboot整合redis

java使用redis

很简单，看我的github的例子就行

spirng整合redis，这里用xml配置方式实现

2.1导包

<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>1.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.1.0</version>
</dependency>

2.2配置applicationContext.xml

Spring提供了很多序列化器

Jackson2JsonRedisSerializer

JdkSerializationRedisSerializer

OxmSerializer

StringRedisSerializer

GenericToStringRedisSerializer

GenericJackson2JsonRedisSerializer


<bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
    <property name="maxIdle" value="50" />
    <property name="maxActive" value="100" />
    <property name="maxWait" value="6000"/>
</bean>

<bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
    <property name="hostName" value="localhost" />
    <property name="port" value="6379" />
    <property name="poolConfig" ref="poolConfig" />
</bean>


<bean id="jdkSerializationRedisSerializer" class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer" />
<bean id="stringRedisSerializer" class="org.springframework.data.redis.serializer.StringRedisSerializer" />


<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">
    <property name="connectionFactory" ref="connectionFactory" />
    
    <property name="keySerializer" ref="stringRedisSerializer" />
    <property name="valueSerializer" ref="stringRedisSerializer" />
</bean>

2.3测试

ApplicationContext applicationContext = new ClassPathXmlApplicationContext(
"applicationContext.xml");
RedisTemplate redisTemplate = applicationContext
.getBean(RedisTemplate.class);

2.4 StringRedisTemplete和RedisTemplete的区别

StringRedisTemplete继承RedisTemplete，内部使用string序列化器，所以适合操作key和value都是string的数据

3 Spring中发布订阅

3.1首先提供接收消息的类，它将实现 org.springframework.data.redis.connection.MessageListener 接口，并实现接口定义的方法 public void onMessage（Message message,byte[]pattern）

/*** imports ***/

public class RedisMessageListener implements MessageListener {
private RedisTemplate redisTemplate;
/*** 此处省略redisTemplate的 setter和getter方法 ***/
@Override
public void onMessage(Message message, byte[] bytes) {
// 获取消息
byte[] body = message.getBody();
// 使用值序列化器转换
10. String msgBody = (String) getRedisTemplate().getValueSerializer()
11. .deserialize(body);
12. System.err.println(msgBody);
13. // 获取 channel
14. byte[] channel = message.getChannel();
15. // 使用字符串序列化器转换
16. String channelStr = (String) getRedisTemplate().getStringSerializer()
17. .deserialize(channel);
18. System.err.println(channelStr);
19. // 渠道名称转换
20. String bytesStr = new String(bytes);
21. System.err.println(bytesStr);
22. }

23. }

3.2.在spring中配置自定义的监听器


<bean id="messageListener" class="com.zy.listener.RedisMessageListener">
<property name="stringRedisSerializer" ref="stringRedisSerializer"/>
<property name="jdkSerializationRedisSerializer" ref="jdkSerializationRedisSerializer"/>
</bean>
3.3 要给一个监听容器，在 Spring 中已有类 org.springframework.data.redis.listener.RedisMessageListenerContainer。它可以用于监听 Redis 的发布订阅消息，下面的配置就是为了实现这个功能，读者可以通过注释来了解它的配置要点。



<bean id="poolTaskScheduler"
        class="org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler">
    <property name="poolSize" value="3" />
</bean>

<redis:listener-container connection-factory="connectionFactory" task-executor="poolTaskScheduler" topic-serializer="stringRedisSerializer">
    <redis:listener ref="messageListener" method="onMessage" topic="chat" serializer="stringRedisSerializer"/>
</redis:listener-container>

3.4 测试，像chat通道发送消息

ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
RedisTemplate redisTemplate = applicationContext.getBean(RedisTemplate.class);
String channel = "chat";
redisTemplate.convertAndSend(channel, "I am lazy!!");

4 springboot整合redis

4.1新建springboot项目，勾选上redis

4.2配置application.yml

        spring:

  redis:

    host: 127.0.0.1

    port: 6379

    jedis:

      pool:

        max-active: 100

        max-idle: 10

        max-wait: 20000

    lettuce:

      shutdown-timeout: 1000

4.2 配置redis的配置类

@Configuration
public class RedisConfig {
    @Bean
    public RedisTemplate<String,Object> redisTemplate(RedisConnectionFactory redisConnectionFactory){
        RedisTemplate<String,Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        redisTemplate.setKeySerializer(stringRedisSerializer());
        redisTemplate.setValueSerializer(jdkSerializationRedisSerializer());
        return redisTemplate;
    }

    @Bean
    public StringRedisSerializer stringRedisSerializer(){
        return new StringRedisSerializer();
    }
    @Bean
    public JdkSerializationRedisSerializer jdkSerializationRedisSerializer(){
        return new JdkSerializationRedisSerializer();
    }
}

4.3 测试

@SpringBootTest
class SpringbootRedisApplicationTests {
@Autowired
private RedisTemplate<String,Object> redisTemplate;
    @Test
    void contextLoads() {
        redisTemplate.opsForValue().set("myname","zhouyang");
        String myname = (String)redisTemplate.opsForValue().get("myname");
        System.out.println(myname);
    }

}

4.4 配置订阅发布

4.4.1新建类实现MessageListener

        public class MyRedisMessageListener implements MessageListener {

    @Autowired

    private RedisTemplate<String,Object> redisTemplate;

    @Override

    public void onMessage(Message message, byte[] bytes) {

        // 获取消息

               byte[] body = message.getBody();

               // 使用值序列化器转换

                   String msgBody = (String) redisTemplate.getValueSerializer()

                           .deserialize(body);

                System.err.println(msgBody);

                   // 获取 channel

                   byte[] channel = message.getChannel();

                   // 使用字符串序列化器转换

               String channelStr = (String) redisTemplate.getStringSerializer()

                           .deserialize(channel);

                System.err.println(channelStr);

                // 渠道名称转换

               String bytesStr = new String(bytes);

               System.err.println(bytesStr);



    }

}

4.4.2 配置redisConfig，把messageListener和containner放入容器中

@Bean
public MyRedisMessageListener myRedisMessageListener(){
    return new MyRedisMessageListener();
}
@Bean
public RedisMessageListenerContainer redisMessageListenerContainer (RedisConnectionFactory redisConnectionFactory){
    RedisMessageListenerContainer redisMessageListenerContainer = new RedisMessageListenerContainer();
    redisMessageListenerContainer.setConnectionFactory(redisConnectionFactory);
    redisMessageListenerContainer.addMessageListener(myRedisMessageListener(),new PatternTopic("chat"));
    return redisMessageListenerContainer;
}

4.4.3测试

@Test
void testPublish() {
redisTemplate.convertAndSend("chat","我是周扬");
}

以上是关于redis spring怎么整合的主要内容，如果未能解决你的问题，请参考以下文章

spring整合jedis怎么指定密码

mybaits和spring整合后pojo扫描怎么配置

Spring优雅整合Redis缓存

redis和mysql怎么一起在springmvc里面

Spring Boot如何整合Redis