pom

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.0.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.gblfy</groupId><artifactId>springboot2-redis</artifactId><version>0.0.1-SNAPSHOT</version><name>springboot2-redis</name><description>Spring Boot整合redia 單機(jī) 哨兵 集群 三種方式</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--redis Start--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId></dependency><!-- redis lettuce 依賴commons-pool --><dependency><groupId>org.apache.commons</groupId><artifactId>commons-pool2</artifactId></dependency><!--redis End--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!--工具包--><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>3.9</version></dependency><dependency><groupId>commons-collections</groupId><artifactId>commons-collections</artifactId><version>3.2.2</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><!--序列化--><dependency><groupId>com.google.code.gson</groupId><artifactId>gson</artifactId></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

application.yml

server:port: 80 spring:profiles:active: alone

#單機(jī)模式

spring:redis:host: 192.168.0.114port: 6379### Redis數(shù)據(jù)庫索引(默認(rèn)為0)database: 0### 連接超時時間（毫秒）timeout: 60000mspassword:lettuce:pool:### 最大連接數(shù)（使用負(fù)值表示沒有限制） 默認(rèn)8max-active: 8### 最小空閑連接 默認(rèn)8min-idle: 0### 連接池中的最大空閑連接 默認(rèn)8max-idle: 8### 連接池最大阻塞等待時間（使用負(fù)值表示沒有限制）max-wait: -1ms

application.yml集群

#集群 spring:redis:cluster:nodes:- 192.168.0.114:7001- 192.168.0.114:7002- 192.168.0.114:7003- 192.168.0.114:7004- 192.168.0.114:7005- 192.168.0.114:7006lettuce:pool:### 最大連接數(shù)（使用負(fù)值表示沒有限制） 默認(rèn)8max-active: 8### 最小空閑連接 默認(rèn)8min-idle: 0### 連接池中的最大空閑連接 默認(rèn)8max-idle: 8### 連接池最大阻塞等待時間（使用負(fù)值表示沒有限制）max-wait: -1ms### 連接超時時間（毫秒）timeout: 60000mspassword:

application-sentinel.yml

#哨兵 spring:redis:sentinel:master: mymasternodes:- 192.168.0.114:26379- 192.168.0.114:26380- 192.168.0.114:26381lettuce:pool:### 最大連接數(shù)（使用負(fù)值表示沒有限制） 默認(rèn)8max-active: 8### 最小空閑連接 默認(rèn)8min-idle: 0### 連接池中的最大空閑連接 默認(rèn)8max-idle: 8### 連接池最大阻塞等待時間（使用負(fù)值表示沒有限制）max-wait: -1ms### 連接超時時間（毫秒）timeout: 60000mspassword:

redis配置

package com.gblfy.config;import com.fasterxml.jackson.annotation.JsonAutoDetect; import com.fasterxml.jackson.annotation.PropertyAccessor; import com.fasterxml.jackson.databind.ObjectMapper; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.data.redis.connection.RedisConnectionFactory; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer; import org.springframework.data.redis.serializer.StringRedisSerializer;/*** redis配置類** @author gblfy* @date 2020-04-19*/ @Configuration public class RedisConfig {@Bean@SuppressWarnings("all")public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();redisTemplate.setConnectionFactory(redisConnectionFactory);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);StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();// key采用String的序列化方式redisTemplate.setKeySerializer(stringRedisSerializer);// hash的key也采用String的序列化方式redisTemplate.setHashKeySerializer(stringRedisSerializer);// valuevalue采用jackson序列化方式redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);// hash的value采用jackson序列化方式redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);//開啟事務(wù)支持redisTemplate.setEnableTransactionSupport(true);redisTemplate.afterPropertiesSet();return redisTemplate;} }

redis工具類

package com.gblfy.utils;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.stereotype.Component; import org.springframework.util.CollectionUtils;import java.util.List; import java.util.Map; import java.util.Set; import java.util.concurrent.TimeUnit;/*** Redis工具類** @author gblfy* @date 2020-04-19*/ @Component public final class RedisUtils {@Autowiredprivate RedisTemplate<String, Object> redisTemplate;// =============================common============================/*** 指定緩存失效時間** @param key 鍵* @param time 時間(秒)* @return*/public boolean expire(String key, long time) {try {if (time > 0) {redisTemplate.expire(key, time, TimeUnit.SECONDS);}return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 根據(jù)key 獲取過期時間** @param key 鍵 不能為null* @return 時間(秒) 返回0代表為永久有效*/public long getExpire(String key) {return redisTemplate.getExpire(key, TimeUnit.SECONDS);}/*** 判斷key是否存在** @param key 鍵* @return true 存在 false不存在*/public boolean hasKey(String key) {try {return redisTemplate.hasKey(key);} catch (Exception e) {e.printStackTrace();return false;}}/*** 刪除緩存** @param key 可以傳一個值 或多個*/@SuppressWarnings("unchecked")public void del(String... key) {if (key != null && key.length > 0) {if (key.length == 1) {redisTemplate.delete(key[0]);} else {redisTemplate.delete(CollectionUtils.arrayToList(key));}}}// ============================String=============================/*** 普通緩存獲取** @param key 鍵* @return 值*/public Object get(String key) {return key == null ? null : redisTemplate.opsForValue().get(key);}/*** 普通緩存放入** @param key 鍵* @param value 值* @return true成功 false失敗*/public boolean set(String key, Object value) {try {redisTemplate.opsForValue().set(key, value);return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 普通緩存放入并設(shè)置時間** @param key 鍵* @param value 值* @param time 時間(秒) time要大于0 如果time小于等于0 將設(shè)置無限期* @return true成功 false 失敗*/public boolean set(String key, Object value, long time) {try {if (time > 0) {redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);} else {set(key, value);}return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 遞增** @param key 鍵* @param delta 要增加幾(大于0)* @return*/public long incr(String key, long delta) {if (delta < 0) {throw new RuntimeException("遞增因子必須大于0");}return redisTemplate.opsForValue().increment(key, delta);}/*** 遞減** @param key 鍵* @param delta 要減少幾(小于0)* @return*/public long decr(String key, long delta) {if (delta < 0) {throw new RuntimeException("遞減因子必須大于0");}return redisTemplate.opsForValue().increment(key, -delta);}// ================================Map=================================/*** HashGet** @param key 鍵 不能為null* @param item 項 不能為null* @return 值*/public Object hget(String key, String item) {return redisTemplate.opsForHash().get(key, item);}/*** 獲取hashKey對應(yīng)的所有鍵值** @param key 鍵* @return 對應(yīng)的多個鍵值*/public Map<Object, Object> hmget(String key) {return redisTemplate.opsForHash().entries(key);}/*** HashSet** @param key 鍵* @param map 對應(yīng)多個鍵值* @return true 成功 false 失敗*/public boolean hmset(String key, Map<String, Object> map) {try {redisTemplate.opsForHash().putAll(key, map);return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** HashSet 并設(shè)置時間** @param key 鍵* @param map 對應(yīng)多個鍵值* @param time 時間(秒)* @return true成功 false失敗*/public boolean hmset(String key, Map<String, Object> map, long time) {try {redisTemplate.opsForHash().putAll(key, map);if (time > 0) {expire(key, time);}return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 向一張hash表中放入數(shù)據(jù),如果不存在將創(chuàng)建** @param key 鍵* @param item 項* @param value 值* @return true 成功 false失敗*/public boolean hset(String key, String item, Object value) {try {redisTemplate.opsForHash().put(key, item, value);return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 向一張hash表中放入數(shù)據(jù),如果不存在將創(chuàng)建** @param key 鍵* @param item 項* @param value 值* @param time 時間(秒) 注意:如果已存在的hash表有時間,這里將會替換原有的時間* @return true 成功 false失敗*/public boolean hset(String key, String item, Object value, long time) {try {redisTemplate.opsForHash().put(key, item, value);if (time > 0) {expire(key, time);}return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 刪除hash表中的值** @param key 鍵 不能為null* @param item 項 可以使多個 不能為null*/public void hdel(String key, Object... item) {redisTemplate.opsForHash().delete(key, item);}/*** 判斷hash表中是否有該項的值** @param key 鍵 不能為null* @param item 項 不能為null* @return true 存在 false不存在*/public boolean hHasKey(String key, String item) {return redisTemplate.opsForHash().hasKey(key, item);}/*** hash遞增 如果不存在,就會創(chuàng)建一個 并把新增后的值返回** @param key 鍵* @param item 項* @param by 要增加幾(大于0)* @return*/public double hincr(String key, String item, double by) {return redisTemplate.opsForHash().increment(key, item, by);}/*** hash遞減** @param key 鍵* @param item 項* @param by 要減少記(小于0)* @return*/public double hdecr(String key, String item, double by) {return redisTemplate.opsForHash().increment(key, item, -by);}// ============================set=============================/*** 根據(jù)key獲取Set中的所有值** @param key 鍵* @return*/public Set<Object> sGet(String key) {try {return redisTemplate.opsForSet().members(key);} catch (Exception e) {e.printStackTrace();return null;}}/*** 根據(jù)value從一個set中查詢,是否存在** @param key 鍵* @param value 值* @return true 存在 false不存在*/public boolean sHasKey(String key, Object value) {try {return redisTemplate.opsForSet().isMember(key, value);} catch (Exception e) {e.printStackTrace();return false;}}/*** 將數(shù)據(jù)放入set緩存** @param key 鍵* @param values 值 可以是多個* @return 成功個數(shù)*/public long sSet(String key, Object... values) {try {return redisTemplate.opsForSet().add(key, values);} catch (Exception e) {e.printStackTrace();return 0;}}/*** 將set數(shù)據(jù)放入緩存** @param key 鍵* @param time 時間(秒)* @param values 值 可以是多個* @return 成功個數(shù)*/public long sSetAndTime(String key, long time, Object... values) {try {Long count = redisTemplate.opsForSet().add(key, values);if (time > 0)expire(key, time);return count;} catch (Exception e) {e.printStackTrace();return 0;}}/*** 獲取set緩存的長度** @param key 鍵* @return*/public long sGetSetSize(String key) {try {return redisTemplate.opsForSet().size(key);} catch (Exception e) {e.printStackTrace();return 0;}}/*** 移除值為value的** @param key 鍵* @param values 值 可以是多個* @return 移除的個數(shù)*/public long setRemove(String key, Object... values) {try {Long count = redisTemplate.opsForSet().remove(key, values);return count;} catch (Exception e) {e.printStackTrace();return 0;}}// ===============================list=================================/*** 獲取list緩存的內(nèi)容** @param key 鍵* @param start 開始* @param end 結(jié)束 0 到 -1代表所有值* @return*/public List<Object> lGet(String key, long start, long end) {try {return redisTemplate.opsForList().range(key, start, end);} catch (Exception e) {e.printStackTrace();return null;}}/*** 獲取list緩存的長度** @param key 鍵* @return*/public long lGetListSize(String key) {try {return redisTemplate.opsForList().size(key);} catch (Exception e) {e.printStackTrace();return 0;}}/*** 通過索引 獲取list中的值** @param key 鍵* @param index 索引 index>=0時， 0 表頭，1 第二個元素，依次類推；index<0時，-1，表尾，-2倒數(shù)第二個元素，依次類推* @return*/public Object lGetIndex(String key, long index) {try {return redisTemplate.opsForList().index(key, index);} catch (Exception e) {e.printStackTrace();return null;}}/*** 將list放入緩存** @param key 鍵* @param value 值* @param time 時間(秒)* @return*/public boolean lSet(String key, Object value) {try {redisTemplate.opsForList().rightPush(key, value);return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 將list放入緩存** @param key 鍵* @param value 值* @param time 時間(秒)* @return*/public boolean lSet(String key, Object value, long time) {try {redisTemplate.opsForList().rightPush(key, value);if (time > 0)expire(key, time);return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 將list放入緩存** @param key 鍵* @param value 值* @param time 時間(秒)* @return*/public boolean lSet(String key, List<Object> value) {try {redisTemplate.opsForList().rightPushAll(key, value);return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 將list放入緩存** @param key 鍵* @param value 值* @param time 時間(秒)* @return*/public boolean lSet(String key, List<Object> value, long time) {try {redisTemplate.opsForList().rightPushAll(key, value);if (time > 0)expire(key, time);return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 根據(jù)索引修改list中的某條數(shù)據(jù)** @param key 鍵* @param index 索引* @param value 值* @return*/public boolean lUpdateIndex(String key, long index, Object value) {try {redisTemplate.opsForList().set(key, index, value);return true;} catch (Exception e) {e.printStackTrace();return false;}}/*** 移除N個值為value** @param key 鍵* @param count 移除多少個* @param value 值* @return 移除的個數(shù)*/public long lRemove(String key, long count, Object value) {try {Long remove = redisTemplate.opsForList().remove(key, count, value);return remove;} catch (Exception e) {e.printStackTrace();return 0;}} }

實體

package com.gblfy.entity;import lombok.AllArgsConstructor; import lombok.Builder; import lombok.Data; import lombok.NoArgsConstructor;import java.io.Serializable;@Data @AllArgsConstructor @NoArgsConstructor @Builder public class User implements Serializable {private static final long serialVersionUID = 1L;private Long id;private String name; }

測試

package com.gblfy;import com.gblfy.entity.User; import com.gblfy.utils.RedisUtils; import com.google.gson.Gson; import lombok.extern.slf4j.Slf4j; import org.apache.commons.collections.MapUtils; import org.junit.Assert; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; 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;@Slf4j @SpringBootTest @RunWith(SpringRunner.class) public class RedisApplicationTests {@Autowiredprivate RedisUtils redisUtils;@Testpublic void contextLoads() {System.out.println("測試單元測試是否可用！");}//測試 存key string // value string/*** 存儲String類型 key value*/@Testpublic void testStr() {redisUtils.set("String1", "str");log.info("String1: {}", redisUtils.get("String1"));}/*** 指定key的過期時間*/@Testpublic void testStrExpTimeout() {redisUtils.set("String2", "str2", 60 * 2);log.info("String2: {}", redisUtils.get("String2"));}/*** map*/@Testpublic void testMap() {Map<String, Object> map = new HashMap<String, Object>();map.put("int1", 1);map.put("int2", 2);map.put("int3", 3);redisUtils.set("map1", map, 60 * 2);log.info("map1: {}", redisUtils.get("map1"));}/*** 存儲對象+list*/@Testpublic void testmap() {User u = new User();u.setId(1l);u.setName("雨昕");redisUtils.set("u", u, 60 * 2);log.info("u: {}", new Gson().toJson(redisUtils.get("u")));User u1 = (User) redisUtils.get("u");log.info("u1: {}", u1);User u2 = new User();u2.setId(1l);u2.setName("雨澤");List<User> userList = new ArrayList<User>();userList.add(u);userList.add(u2);redisUtils.set("userList", userList, 60 * 2);log.info("userList: {}", new Gson().toJson(redisUtils.get("userList")));}//-----------------------------------------------------------------------------------@Testpublic void testHget() throws Exception {redisUtils.hset("testHget", "testHget", "testHget");Assert.assertEquals("testHget", redisUtils.hget("testHget", "testHget"));redisUtils.hset("testHgetKey", "testHget", "testHgetValue");Assert.assertEquals("testHgetValue", redisUtils.hget("testHgetKey", "testHget"));}@Testpublic void testHmget() throws Exception {redisUtils.hset("testHmget", "testHmget1", "testHmget1");redisUtils.hset("testHmget", "testHmget2", "testHmget2");Map<Object, Object> map = redisUtils.hmget("testHmget");if (MapUtils.isNotEmpty(map)) {for (Map.Entry<Object, Object> e : map.entrySet()) {System.err.println(e.getKey() + "===" + e.getValue());}}}/*** 設(shè)置緩存過期時間*/@Testpublic void testExpire() throws Exception {redisUtils.set("aaaKey", "aaaValue");redisUtils.expire("aaaKey", 10);Assert.assertEquals(redisUtils.get("aaaKey"), "aaaValue");TimeUnit.SECONDS.sleep(10);Assert.assertNotEquals(redisUtils.get("aaaKey"), "aaaValue");}@Testpublic void testGetExpire() throws Exception {redisUtils.set("aaaKey", "aaaValue");redisUtils.expire("aaaKey", 10);// 設(shè)置了緩存就會及時的生效，所以緩存時間小于最初設(shè)置的時間Assert.assertTrue(redisUtils.getExpire("aaaKey") < 10L);}@Testpublic void testHasKey() throws Exception {redisUtils.set("aaaKey", "aaaValue");// 存在的Assert.assertTrue(redisUtils.hasKey("aaaKey"));// 不存在的Assert.assertFalse(redisUtils.hasKey("bbbKey"));}@Testpublic void testDel() throws Exception {redisUtils.set("aaaKey", "aaaValue");// 存在的Assert.assertTrue(redisUtils.hasKey("aaaKey"));redisUtils.del("aaaKey");Assert.assertFalse(redisUtils.hasKey("bbbKey"));} }

本文源碼：https://gitee.com/gb_90/SpringBoot2_Practical_Column

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