springboot整合redis

本文jdk8

首先在pom中添加缓存有关的依赖：

        <!--缓存配置-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-cache</artifactId>
        </dependency>
        <!--redis配置-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-redis</artifactId>
            <version>1.3.5.RELEASE</version>
        </dependency>

添加配置文件，是redis缓存替换spring默认的缓存：

package com.bxw.configuration;

import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.core.RedisTemplate;

@Configuration
@EnableCaching
public class RedisConfig {

    /**
     * 采用RedisCacheManager作为缓存管理器
     * @param redisTemplate
     * @return
     */
    @Bean
    public CacheManager cacheManager(RedisTemplate redisTemplate){
        return new RedisCacheManager(redisTemplate);
    }
}

完成缓存service:

package com.bxw.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.Optional;
import java.util.concurrent.TimeUnit;

@Service
public class RedisService {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    public void setString(Optional<String> key, Optional<Object> value, Long time){
        this.setObject(key,value,time);
    }
    private void setObject(Optional<String> key, Optional<Object> value, Long time){
        if(key.isPresent() && value.isPresent()){
            String key1 = key.get();
            Object val1 = value.get();

            if(val1 instanceof String){
                String strVal = (String) val1;
                stringRedisTemplate.opsForValue().set(key1,strVal);
                if(time != null){
                    stringRedisTemplate.opsForValue().set(key1,strVal,time, TimeUnit.SECONDS);
                }
                return;
            }
        }
    }
    public String getValue(Optional<String> key){
        if(key.isPresent()){
            return stringRedisTemplate.opsForValue().get(key.get());
        }
        return null;
    }
}

控制层中调用:

 //redis
    @GetMapping("/setString")
    @ResponseBody
    public String setString(String key,String value){
        redisService.setString(Optional.of(key),Optional.of(value),null);
        return "success";
    }

    @GetMapping("/getValue")
    @ResponseBody
    public String getValue(String key){
        return redisService.getValue(Optional.of(key));
    }