springboot redis key过期后执行一些操作

工欲善其事必先利其器；预备一下工具对于整个环境的整合有极大的帮助

1. linux环境中单例redis服务搭建，参考博客 centos7自学之7-redis-4.0.1单例服务器搭建
2. redisDesktopManage redis可视化工具安装
3. idea开发工具

开始

现如今，越来越多的公司注重用户对网站访问速度的体验。而缓存技术的出现无疑很好的适用以上场景。

因此掌握一门缓存技术对一名IT男无疑是必要的。

创建springboot-redis项目

添加依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!--redis连接池-->
<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
</dependency>
<!--测试框架-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
</dependency>
<!--json序列化-->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
</dependency>
<!--自己封装的redis增删改查方法-->
<dependency>
    <groupId>com.hsy.java</groupId>
    <artifactId>java-util</artifactId>
</dependency>

创建redis配置文件

新建conf/redis.properties文件

#Matser的ip地址
redis.host=172.16.191.102
#端口号
redis.port=6379
#如果有密码
redis.password=123456
# 数据库索引
redis.database=0
#客户端超时时间单位是毫秒 默认是2000
redis.timeout=10000  

#最大空闲数
redis.pool.maxIdle=300  
#连接池的最大数据库连接数。设为0表示无限制,如果是jedis 2.4以后用redis.maxTotal
#redis.pool.maxActive=600
#控制一个pool可分配多少个jedis实例,用来替换上面的redis.maxActive,如果是jedis 2.4以后用该属性
redis.pool.maxTotal=1000  
#最大建立连接等待时间。如果超过此时间将接到异常。设为-1表示无限制。
redis.pool.maxWaitMillis=1000  
#连接的最小空闲时间 默认1800000毫秒(30分钟)
redis.pool.minEvictableIdleTimeMillis=300000  
#每次释放连接的最大数目,默认3
redis.pool.numTestsPerEvictionRun=1024  
#逐出扫描的时间间隔(毫秒) 如果为负数,则不运行逐出线程, 默认-1
redis.pool.timeBetweenEvictionRunsMillis=30000  
#是否在从池中取出连接前进行检验,如果检验失败,则从池中去除连接并尝试取出另一个
redis.pool.testOnBorrow=true  
#在空闲时检查有效性, 默认false
redis.pool.testWhileIdle=true

新建RedisConfig.java

package com.hsy.springboot.redis.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import redis.clients.jedis.JedisPoolConfig;

/**
 * @author heshiyuan
 * @description <p></p>
 * @path springboot/com.hsy.springboot.redis.config
 * @date 2018/7/26 9:09
 * @github http://github.com/shiyuan2he
 * @email 
 * Copyright (c) 2018 [e-mail] All rights reserved.
 * @price ¥5    
 */
@Configuration
@PropertySource("classpath:config/redis.properties")
public class RedisConfig {
    @Value("${redis.host}")
    private String host;
    @Value("${redis.port}")
    private Integer port;
    @Value("${redis.password}")
    private String password;
    @Value("${redis.database}")
    private Integer database;
    @Value("${redis.timeout}")
    private Integer timeout;

    @Value("${redis.pool.maxIdle}")
    private Integer maxIdle;

    @Value("${redis.pool.maxTotal}")
    private Integer maxTotal;

    @Value("${redis.pool.maxWaitMillis}")
    private Integer maxWaitMillis;

    @Value("${redis.pool.minEvictableIdleTimeMillis}")
    private Integer minEvictableIdleTimeMillis;

    @Value("${redis.pool.numTestsPerEvictionRun}")
    private Integer numTestsPerEvictionRun;

    @Value("${redis.pool.timeBetweenEvictionRunsMillis}")
    private long timeBetweenEvictionRunsMillis;

    @Value("${redis.pool.testOnBorrow}")
    private boolean testOnBorrow;

    @Value("${redis.pool.testWhileIdle}")
    private boolean testWhileIdle;

    /**
     * JedisPoolConfig 连接池
     * @return
     */
    @Bean
    public JedisPoolConfig jedisPoolConfig() {
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        // 最大空闲数
        jedisPoolConfig.setMaxIdle(maxIdle);
        // 连接池的最大数据库连接数
        jedisPoolConfig.setMaxTotal(maxTotal);
        // 最大建立连接等待时间
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
        // 逐出连接的最小空闲时间 默认1800000毫秒(30分钟)
        jedisPoolConfig.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        // 每次逐出检查时 逐出的最大数目 如果为负数就是 : 1/abs(n), 默认3
        jedisPoolConfig.setNumTestsPerEvictionRun(numTestsPerEvictionRun);
        // 逐出扫描的时间间隔(毫秒) 如果为负数,则不运行逐出线程, 默认-1
        jedisPoolConfig.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        // 是否在从池中取出连接前进行检验,如果检验失败,则从池中去除连接并尝试取出另一个
        jedisPoolConfig.setTestOnBorrow(testOnBorrow);
        // 在空闲时检查有效性, 默认false
        jedisPoolConfig.setTestWhileIdle(testWhileIdle);
        return jedisPoolConfig;
    }
    /**
     * 单机版配置
     * @Title: JedisConnectionFactory
     * @param @param jedisPoolConfig
     * @param @return
     * @return JedisConnectionFactory
     * @autor lpl
     * @date 2018年2月24日
     * @throws
     */
    @Bean
    public JedisConnectionFactory jedisConnectionFactory(JedisPoolConfig jedisPoolConfig){
        JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory(jedisPoolConfig);
        jedisConnectionFactory.setUsePool(true);
        //连接池
        jedisConnectionFactory.setPoolConfig(jedisPoolConfig);
        //IP地址
        jedisConnectionFactory.setHostName(host);
        //端口号
        jedisConnectionFactory.setPort(port);
        //如果Redis设置有密码
        jedisConnectionFactory.setPassword(password);
        // 设置数据库索引号
        jedisConnectionFactory.setDatabase(database);
        //客户端超时时间单位是毫秒
        jedisConnectionFactory.setTimeout(timeout);
        return jedisConnectionFactory;
    }

    /**
     * 实例化 RedisTemplate 对象
     *
     * @return
     */
    @Bean
    public RedisTemplate<String, Object> functionDomainRedisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        initDomainRedisTemplate(redisTemplate, redisConnectionFactory);
        return redisTemplate;
    }
    /**
     * 设置数据存入 redis 的序列化方式,并开启事务
     *
     * @param redisTemplate
     * @param factory
     */
    private void initDomainRedisTemplate(RedisTemplate<String, Object> redisTemplate, RedisConnectionFactory factory) {
        //如果不配置Serializer，那么存储的时候缺省使用String，如果用User类型存储，那么会提示错误User can't cast to String！
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());

        // GenericJackson2JsonRedisSerializer序列化方式
        //redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
        //redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());

        // Jackson2JsonRedisSerializer序列化方式
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);

        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
        //set value serializer
        redisTemplate.setDefaultSerializer(jackson2JsonRedisSerializer);
        // 开启事务
        redisTemplate.setEnableTransactionSupport(true);
        redisTemplate.setConnectionFactory(factory);
        redisTemplate.afterPropertiesSet();
    }
}

创建入口类

@SpringBootApplication
public class SpringBootRedisApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootRedisApplication.class,args) ;
    }
}

创建dao层数据接口文件

RedisRepository.java

@Repository(value = "redisRepository")
public class RedisRepository extends AbstractSpringRedisCacheEnhance{

    @Autowired
    RedisTemplate<String, Object> redisTemplate;

    @Override
    public StringRedisTemplate getStringRedisTemplate() {
        return null;
    }

    @Override
    public RedisTemplate<String, Object> getRedisTemplate() {
        return redisTemplate;
    }
}

AbstractSpringRedisCacheEnhance封装有crud方法，有上千行代码，就不贴在这里了，

有兴趣的可以去我github上fork。后面会附上源码地址

创建测试类

package com.hsy.springboot.redis;

import com.hsy.springboot.redis.dao.RedisRepository;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @author heshiyuan
 * @description <p></p>
 * @path spring/com.hsy.spring.redis.dao
 * @date 2018/7/23 18:42
 * @github http://github.com/shiyuan2he
 * @email 
 * Copyright (c) 2018 [e-mail] All rights reserved.
 * @price ¥5   
 */
@RunWith(SpringRunner.class)
@SpringBootTest(classes = SpringBootRedisApplication.class)
public class RedisRepositoryTest {

    private Logger logger = LoggerFactory.getLogger(getClass());
    @Autowired private RedisRepository redisRepository;

    public Map<String, Object> generateMap(){
        Map<String, Object> returnMap = new HashMap<>();
        returnMap.put("aa", "aa");
        Map<String, Object> innerMap = new HashMap<>();
        innerMap.put("ss", 3);
        innerMap.put("rr",false);
        innerMap.put("tt","中文");
        returnMap.put("bb", innerMap);
        returnMap.put("cc", 1.000);
        returnMap.put("dd", true);
        returnMap.put("ee", 2);
        return returnMap;
    }
    public List<Map<String, Object>> generateList(){
        List<Map<String, Object>> list = new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            list.add(generateMap());
        }
        return list;
    }
    @Test
    public void clear(){
        redisRepository.clear();
    }
    @Test
    public void testSet(){
        redisRepository.valueSet("name", "robot");
        redisRepository.valueSet("name2", "robot", 1600, TimeUnit.SECONDS);
        redisRepository.valueSet("set:map", generateMap());
        redisRepository.valueSet("set:map", generateMap(), 1600, TimeUnit.SECONDS);
        redisRepository.valueSet("set:list", generateList());
        redisRepository.valueSet("set:list", generateList(), 1600, TimeUnit.SECONDS);
    }

    @Test
    public void testGet(){
        logger.info("{}", redisRepository.valueGet("name", false));
        logger.info("{}", redisRepository.valueGet("name2", true));
        logger.info("{}", redisRepository.valueGet("set:map", false));
        logger.info("{}", redisRepository.valueGet("set:map", true));
        logger.info("{}", redisRepository.valueGet("set:list", false));
        logger.info("{}", redisRepository.valueGet("set:list", true));
        //logger.info("{}", redisRepository.getAndSet("name", "new value",false));
        //logger.info("{}", redisRepository.getAndSet("name", "new value",true));
    }

    @Test
    public void testIncrement(){
        for (int i = 0; i < 10; i++) {
            logger.info("{}", redisRepository.valueIncrement("mobile:[phone]", 1l, 60, TimeUnit.MINUTES));
            logger.info("{}", redisRepository.valueIncrement("tel:[phone]", 1.0, 70, TimeUnit.MINUTES));
        }
    }
    @Test
    public void testSetArray(){
        for (int i = 0; i < 10; i++) {
            logger.info("{}", redisRepository.setAdd("set:array1",i));
        }
        for (int i = 5; i < 20; i++) {
            logger.info("{}", redisRepository.setAdd("set:array1",i));
            logger.info("{}", redisRepository.setAdd("set:array2",i));
        }
        //logger.info("{}", redisRepository.setPop("set:array"));
        logger.info("{}", redisRepository.setDifference("set:array1","set:array2"));
        logger.info("{}", redisRepository.setDifferenceAndStore("set:array1","set:array2", "set:array3"));

        logger.info("{}", redisRepository.setAdd("set:add:map",generateMap()));
        logger.info("{}", redisRepository.setAdd("set:add:list",generateList()));
        logger.info("{}", redisRepository.setPop("set:add:map"));
        logger.info("{}", redisRepository.setPop("set:add:list"));
    }
    @Test
    public void testList(){
        for (int i = 0; i < 10; i++) {
            logger.info("{}", redisRepository.listLeftPush("list:lilo:list", generateList()));
            logger.info("{}", redisRepository.listLeftPush("list:liro:list", generateList()));
            logger.info("{}", redisRepository.listRightPush("list:rilo:list", generateList()));
            logger.info("{}", redisRepository.listRightPush("list:riro:list", generateList()));
        }

        for (int i = 0; i < 5; i++) {
            logger.info("{}", redisRepository.listLeftPop("list:lilo:list"));
            logger.info("{}", redisRepository.listRightPop("list:liro:list"));
            logger.info("{}", redisRepository.listLeftPop("list:rilo:list"));
            logger.info("{}", redisRepository.listRightPop("list:riro:list"));
        }
        for (int i = 0; i < 10; i++) {
            logger.info("{}", redisRepository.listLeftPush("list:lilo:map", generateMap()));
            logger.info("{}", redisRepository.listLeftPush("list:liro:map", generateMap()));
            logger.info("{}", redisRepository.listRightPush("list:rilo:map", generateMap()));
            logger.info("{}", redisRepository.listRightPush("list:riro:map", generateMap()));
        }

        for (int i = 0; i < 5; i++) {
            logger.info("{}", redisRepository.listLeftPop("list:lilo:map"));
            logger.info("{}", redisRepository.listRightPop("list:liro:map"));
            logger.info("{}", redisRepository.listLeftPop("list:rilo:map"));
            logger.info("{}", redisRepository.listRightPop("list:riro:map"));
        }
    }
    @Test
    public void testZSet(){
        for (int i = 0; i < 10; i++) {
            logger.info("{}", redisRepository.zSetAdd("zset:map", generateMap(), i));
        }
        redisRepository.zSetIncrementScore("zset:Map", "4", 30);
    }
    @Test
    public void testHash(){
        for (int i = 0; i < 10; i++) {
            redisRepository.hashPut("hash:map", String.valueOf(i), generateMap());
            logger.info("{}", redisRepository.hashGet("hash:map", String.valueOf(i)));
        }
        for (int i = 0; i < 10; i++) {
            redisRepository.hashPut("hash:list", String.valueOf(i), generateList());
            logger.info("{}", redisRepository.hashGet("hash:list", String.valueOf(i)));
        }
    }
}

扩展

底层redis增删改查封装好之后，就很好扩展，如果想使用StringRedisTemplate，只需要简单的继承即可。

新建StringRedisRepository.java

@Repository(value = "stringRedisRepository")
public class StringRedisRepository extends AbstractSpringStringRedisCacheEnhance {

    @Autowired StringRedisTemplate stringRedisTemplate;

    @Override
    public StringRedisTemplate getStringRedisTemplate() {
        return stringRedisTemplate;
    }

    @Override
    public RedisTemplate<String, Object> getRedisTemplate() {
        return null;
    }
}

测试类

/**
 * @author heshiyuan
 * @description <p></p>
 * @path spring/com.hsy.spring.redis.dao
 * @date 2018/7/24 10:13
 * @github http://github.com/shiyuan2he
 * @email [e-mail]
 * Copyright (c) 2018 [e-mail] All rights reserved.
 * @price ¥5    微信：hewei1109
 */
@RunWith(SpringRunner.class)
@SpringBootTest(classes = SpringBootRedisApplication.class)
public class StringRedisRepositoryTest {
    private Logger logger = LoggerFactory.getLogger(getClass());
    @Autowired private StringRedisRepository stringRedisRepository;
    @Test
    public void testSet(){
        stringRedisRepository.set("name", "robot");
        stringRedisRepository.set("name", "robot", 60);
        stringRedisRepository.set("name2", "robot", 1600, TimeUnit.SECONDS);
    }

    @Test
    public void testGet(){
        logger.info(stringRedisRepository.get("name", false));
        logger.info(stringRedisRepository.get("name", true));
        logger.info(stringRedisRepository.getAndSet("name", "new value",false));
        logger.info(stringRedisRepository.getAndSet("name", "new value",true));
    }

    @Test
    public void testIncrement(){
        for (int i = 0; i < 10; i++) {
            logger.info("{}", stringRedisRepository.increment("mobile:[phone]", 1l, 60, TimeUnit.MINUTES));
            logger.info("{}", stringRedisRepository.increment("tel:[phone]", 1.0, 70, TimeUnit.MINUTES));
        }
    }
    @Test
    public void testSetArray(){
        for (int i = 0; i < 10; i++) {
            logger.info("{}", stringRedisRepository.addSet("set:array1",String.valueOf(i)));
        }
        for (int i = 5; i < 20; i++) {
            logger.info("{}", stringRedisRepository.addSet("set:array1",String.valueOf(i)));
            logger.info("{}", stringRedisRepository.addSet("set:array2",String.valueOf(i)));
        }
        //logger.info("{}", stringRedisRepository.popSet("set:array"));
        logger.info("{}", stringRedisRepository.difference("set:array1","set:array2"));
        logger.info("{}", stringRedisRepository.differenceAndStore("set:array1","set:array2", "set:array3"));
    }
    @Test
    public void testList(){
        for (int i = 0; i < 10; i++) {
            logger.info("{}", stringRedisRepository.leftPush("list:lilo", String.valueOf(i)));
            logger.info("{}", stringRedisRepository.leftPush("list:liro", String.valueOf(i)));
            logger.info("{}", stringRedisRepository.rightPush("list:rilo", String.valueOf(i)));
            logger.info("{}", stringRedisRepository.rightPush("list:riro", String.valueOf(i)));
        }

        for (int i = 0; i < 5; i++) {
            logger.info("{}", stringRedisRepository.leftPop("list:lilo"));
            logger.info("{}", stringRedisRepository.rightPop("list:liro"));
            logger.info("{}", stringRedisRepository.leftPop("list:rilo"));
            logger.info("{}", stringRedisRepository.rightPop("list:riro"));
        }
    }
    @Test
    public void testZSet(){
      /*  for (int i = 0; i < 10; i++) {
            logger.info("{}", stringRedisRepository.addZSet("zset", String.valueOf(i), i+1));
        }*/
        stringRedisRepository.incrementScore("zset", "4", 30);
    }
    @Test
    public void testHash(){
        for (int i = 0; i < 10; i++) {
            stringRedisRepository.put4Hash("hash", String.valueOf(i), String.valueOf(i));
            logger.info("{}", stringRedisRepository.get("hash", String.valueOf(i)));
        }
    }
}

注意：

本文介绍StringRedisTemplate、RedisTemplate这两个模板来介绍，其中StringRedisTemplate继承自RedisTemplate，只能操作键值都是String类型的数据。在实际开发中建议使用RedisTemplate

源码

spring-redis