<!-- Redis的maven依賴(lài)包 -->
?? ??? ?<dependency>
?? ??? ??? ?<groupId>org.springframework.boot</groupId>
?? ??? ??? ?<artifactId>spring-boot-starter-data-redis</artifactId>
?? ??? ?</dependency>

# redis配置
spring:
  redis:
    # r服務(wù)器地址
    host: 127.0.0.1
    # 服務(wù)器端口
    port: 6379
    # 數(shù)據(jù)庫(kù)索引（默認(rèn)0）
    database: 0
    jedis:
      pool:
        # 連接池最大連接數(shù)（使用負(fù)值表示沒(méi)有限制）
        max-active: 50
        # 連接池最大阻塞等待時(shí)間（使用負(fù)值表示沒(méi)有限制）
        max-wait: 3000ms
        # 連接池中的最大空閑連接數(shù)
        max-idle: 20
        # 連接池中的最小空閑連接數(shù)
        min-idle: 2
    # 連接超時(shí)時(shí)間（毫秒）
    timeout: 5000ms

package com.zyxx.test.utils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

/**
 * @ClassName RedisUtil
 * @Author Lizhou
 * @Date 2019-08-03 17:29:29
 * @Version 1.0
 **/
@Component
public class RedisUtil {

    @Autowired
    private RedisTemplate<String, String> template;

    /**
     * 讀取數(shù)據(jù)
     *
     * @param key
     * @return
     */
    public String get(final String key) {
        return template.opsForValue().get(key);
    }

    /**
     * 寫(xiě)入數(shù)據(jù)
     */
    public boolean set(final String key, String value) {
        boolean res = false;
        try {
            template.opsForValue().set(key, value);
            res = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return res;
    }

    /**
     * 根據(jù)key更新數(shù)據(jù)
     */
    public boolean update(final String key, String value) {
        boolean res = false;
        try {
            template.opsForValue().getAndSet(key, value);
            res = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return res;
    }

    /**
     * 根據(jù)key刪除數(shù)據(jù)
     */
    public boolean del(final String key) {
        boolean res = false;
        try {
            template.delete(key);
            res = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return res;
    }
    
	/**
     * 是否存在key
     */
    public boolean hasKey(final String key) {
        boolean res = false;
        try {
            res = template.hasKey(key);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return res;
    }

	/**
     * 給指定的key設(shè)置存活時(shí)間
     * 默認(rèn)為-1，表示永久不失效
     */
    public boolean setExpire(final String key, long seconds) {
        boolean res = false;
        try {
            if (0 < seconds) {
                res = template.expire(key, seconds, TimeUnit.SECONDS);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return res;
    }

    /**
     * 獲取指定key的剩余存活時(shí)間
     * 默認(rèn)為-1，表示永久不失效，-2表示該key不存在
     */
    public long getExpire(final String key) {
        long res = 0;
        try {
            res = template.getExpire(key, TimeUnit.SECONDS);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return res;
    }

	/**
     * 移除指定key的有效時(shí)間
     * 當(dāng)key的有效時(shí)間為-1即永久不失效和當(dāng)key不存在時(shí)返回false，否則返回true
     */
    public boolean persist(final String key) {
        boolean res = false;
        try {
            res = template.persist(key);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return res;
    }    
}

package com.zyxx.test;
import com.zyxx.test.utils.RedisUtil;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import javax.annotation.Resource;

@RunWith(SpringRunner.class)
@SpringBootTest
public class TestApplicationTest {

    @Resource
    private RedisUtil redisUtil;

    @Test
    public void setRedis() {
        boolean res = redisUtil.set("jay", "周杰倫 - 《以父之名》");
        System.out.println(res);
    }

    @Test
    public void getRedis() {
        String res = redisUtil.get("jay");
        System.out.println(res);
    }

    @Test
    public void updateRedis() {
        boolean res = redisUtil.update("jay", "周杰倫 - 《夜的第七章》");
        System.out.println(res);
    }

    @Test
    public void delRedis() {
        boolean res = redisUtil.del("jay");
        System.out.println(res);
    }

	@Test
    public void hasKey() {
        boolean res = redisUtil.hasKey("jay");
        System.out.println(res);
    }

	@Test
    public void expire() {
        boolean res = redisUtil.setExpire("jay", 100);
        System.out.println(res);
    }

    @Test
    public void getExpire() {
        long res = redisUtil.getExpire("jay");
        System.out.println(res);
    }

	@Test
    public void persist() {
        boolean res = redisUtil.persist("jay");
        System.out.println(res);
    }    
}

redis:
? database: 15
? host: 127.0.0.1
? port: 6379
? password:
? timeout: 3000ms # 連接超時(shí)時(shí)間（毫秒)