Pom文件
<!--springboot- 整合redis-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
yml文件
spring:
#redis配置信息
redis:
#redis 服务器地址
host: 49.235.155.13
#redis端口
port: 6379
#redis 密码
password: bbbbbccc
#客户端超时时间单位是毫秒 默认是2000
timeout: 5000
#最大空闲数
maxIdle: 20
#连接池的最大数据库连接数
maxActive: -1
#控制一个pool可分配多少个jedis实例,用来替换上面的maxActive
maxTotal: 100
#最大建立连接等待时间。如果超过此时间将接到异常
maxWaitMillis: 100
#连接的最小空闲时间
minEvictableIdleTimeMillis: 864000000
#每次释放连接的最大数目
numTestsPerEvictionRun: 10
#逐出扫描的时间间隔(毫秒) 如果为负数,则不运行逐出线程
timeBetweenEvictionRunsMillis: 300000
#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
testOnBorrow: true
#在空闲时检查有效性
testWhileIdle: false
#数据库
database: 1
配置redis序列化方法
package com.jy.chat_status_server.common.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.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.jedis.JedisClientConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
/**
* redis 配置类
*
* @author: jy Ps:我是抄袭网上大佬的配置
* @create: 2020/1/3
*/
@Configuration
public class RedisConfig {
@Bean
@SuppressWarnings("all")
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
template.setConnectionFactory(factory);
//配置Jackson2JsonRedisSerializer
Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
ObjectMapper om = new ObjectMapper();
om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(om);
//配置stringRedisSerializer
StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
// key采用String的序列化方式
template.setKeySerializer(stringRedisSerializer);
// hash的key也采用String的序列化方式
template.setHashKeySerializer(stringRedisSerializer);
// value序列化方式采用jackson
template.setValueSerializer(jackson2JsonRedisSerializer);
// hash的value序列化方式采用jackson
template.setHashValueSerializer(jackson2JsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
}
写一个工具类
package com.jy.chat_status_server.common.utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.util.CollectionUtils;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
/**
* redis 工具类
* @author: example
* @create: 2019/5/31
*/
public class RedisUtil {
/**
* 日志对象
*/
private static Logger logger = LoggerFactory.getLogger(RedisUtil.class);
/**
* The constant RUN_MESSAGE.
*/
private static RedisTemplate redisTemplate = (RedisTemplate)ApplicationHelper.getBean("redisTemplate");
/**
* 指定缓存失效时间
* @param key 键
* @param time 时间(秒)
* @return
*/
public static boolean expire(String key,long time){
try {
if(time>0){
redisTemplate.expire(key, time, TimeUnit.SECONDS);
}
return true;
} catch (Exception e) {
logger.error("RedisUtils expire(String key,long time) failure."+e.getMessage());
return false;
}
}
/**
* 根据key 获取过期时间
* @param key 键 不能为null
* @return 时间(秒) 返回0代表为永久有效
*/
public static long getExpire(String key){
return redisTemplate.getExpire(key,TimeUnit.SECONDS);
}
/**
* 判断key是否存在
* @param key 键
* @return true 存在 false不存在
*/
public static boolean hasKey(String key){
try {
return redisTemplate.hasKey(key);
} catch (Exception e) {
logger.error("RedisUtils hasKey(String key) failure."+e.getMessage());
return false;
}
}
/**
* 删除缓存
* @param key 可以传一个值 或多个
*/
@SuppressWarnings("unchecked")
public static void del(String ... key){
if(key!=null&&key.length>0){
if(key.length==1){
redisTemplate.delete(key[0]);
}else{
redisTemplate.delete(CollectionUtils.arrayToList(key));
}
}
}
/**
* 普通缓存获取
* @param key 键
* @return 值
*/
public static Object get(String key){
return key==null?null:redisTemplate.opsForValue().get(key);
}
/**
* 普通缓存放入
* @param key 键
* @param value 值
* @return true成功 false失败
*/
public static boolean set(String key,Object value) {
try {
redisTemplate.opsForValue().set(key, value);
return true;
} catch (Exception e) {
logger.error("RedisUtils set(String key,Object value) failure."+e.getMessage());
return false;
}
}
/**
* 普通缓存放入并设置时间
* @param key 键
* @param value 值
* @param time 时间(秒) time要大于0 如果time小于等于0 将设置无限期
* @return true成功 false 失败
*/
public static 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) {
logger.error("RedisUtils set(String key,Object value,long time) failure."+e.getMessage());
return false;
}
}
/**
* 递增
* @param key 键
* @param delta
* @return
*/
public static long incr(String key, long delta){
if(delta<0){
throw new RuntimeException("递增因子必须大于0");
}
return redisTemplate.opsForValue().increment(key, delta);
}
/**
* 递减
* @param key 键
* @param delta 要减少几(小于0)
* @return
*/
public static long decr(String key, long delta){
if(delta<0){
throw new RuntimeException("递减因子必须大于0");
}
return redisTemplate.opsForValue().increment(key, -delta);
}
/**
* HashGet
* @param key 键 不能为null
* @param item 项 不能为null
* @return 值
*/
public static Object hget(String key,String item){
return redisTemplate.opsForHash().get(key, item);
}
/**
* 获取hashKey对应的所有键值
* @param key 键
* @return 对应的多个键值
*/
public static Map<Object,Object> hmget(String key){
return redisTemplate.opsForHash().entries(key);
}
/**
* HashSet
* @param key 键
* @param map 对应多个键值
* @return true 成功 false 失败
*/
public static boolean hmset(String key, Map<String,Object> map){
try {
redisTemplate.opsForHash().putAll(key, map);
return true;
} catch (Exception e) {
logger.error("RedisUtils hmset(String key, Map<String,Object> map) failure."+e.getMessage());
return false;
}
}
/**
* HashSet 并设置时间
* @param key 键
* @param map 对应多个键值
* @param time 时间(秒)
* @return true成功 false失败
*/
public static 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) {
logger.error("RedisUtils hmset(String key, Map<String,Object> map, long time) failure."+e.getMessage());
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
* @param key 键
* @param item 项
* @param value 值
* @return true 成功 false失败
*/
public static boolean hset(String key,String item,Object value) {
try {
redisTemplate.opsForHash().put(key, item, value);
return true;
} catch (Exception e) {
logger.error("RedisUtils hset(String key,String item,Object value) failure."+e.getMessage());
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
* @param key 键
* @param item 项
* @param value 值
* @param time 时间(秒) 注意:如果已存在的hash表有时间,这里将会替换原有的时间
* @return true 成功 false失败
*/
public static 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) {
logger.error("RedisUtils hset(String key,String item,Object value,long time) failure."+e.getMessage());
return false;
}
}
/**
* 删除hash表中的值
* @param key 键 不能为null
* @param item 项 可以使多个 不能为null
*/
public static void hdel(String key, Object... item){
redisTemplate.opsForHash().delete(key,item);
}
/**
* 判断hash表中是否有该项的值
* @param key 键 不能为null
* @param item 项 不能为null
* @return true 存在 false不存在
*/
public static boolean hHasKey(String key, String item){
return redisTemplate.opsForHash().hasKey(key, item);
}
/**
* hash递增 如果不存在,就会创建一个 并把新增后的值返回
* @param key 键
* @param item 项
* @param by 要增加几(大于0)
* @return
*/
public static double hincr(String key, String item,double by){
return redisTemplate.opsForHash().increment(key, item, by);
}
/**
* hash递减
* @param key 键
* @param item 项
* @param by 要减少记(小于0)
* @return
*/
public static double hdecr(String key, String item,double by){
return redisTemplate.opsForHash().increment(key, item,-by);
}
/**
* 根据key获取Set中的所有值
* @param key 键
* @return
*/
public static Set<Object> sGet(String key){
try {
return redisTemplate.opsForSet().members(key);
} catch (Exception e) {
logger.error("RedisUtils sGet(String key) failure."+e.getMessage());
return null;
}
}
/**
* 根据value从一个set中查询,是否存在
* @param key 键
* @param value 值
* @return true 存在 false不存在
*/
public static boolean sHasKey(String key,Object value){
try {
return redisTemplate.opsForSet().isMember(key, value);
} catch (Exception e) {
logger.error("RedisUtils sHasKey(String key,Object value) failure."+e.getMessage());
return false;
}
}
/**
* 将数据放入set缓存
* @param key 键
* @param values 值 可以是多个
* @return 成功个数
*/
public static long sSet(String key, Object...values) {
try {
return redisTemplate.opsForSet().add(key, values);
} catch (Exception e) {
logger.error("RedisUtils sSet(String key, Object...values) failure."+e.getMessage());
return 0;
}
}
/**
* 将set数据放入缓存
* @param key 键
* @param time 时间(秒)
* @param values 值 可以是多个
* @return 成功个数
*/
public static 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) {
logger.error("RedisUtils sSetAndTime(String key,long time,Object...values) failure."+e.getMessage());
return 0;
}
}
/**
* 获取set缓存的长度
* @param key 键
* @return
*/
public static long sGetSetSize(String key){
try {
return redisTemplate.opsForSet().size(key);
} catch (Exception e) {
logger.error("RedisUtils sGetSetSize(String key) failure."+e.getMessage());
return 0;
}
}
/**
* 移除值为value的
* @param key 键
* @param values 值 可以是多个
* @return 移除的个数
*/
public static long setRemove(String key, Object ...values) {
try {
Long count = redisTemplate.opsForSet().remove(key, values);
return count;
} catch (Exception e) {
logger.error("RedisUtils setRemove(String key, Object ...values) failure."+e.getMessage());
return 0;
}
}
/**
* 获取list缓存的内容
* @param key 键
* @param start 开始
* @param end 结束 0 到 -1代表所有值
* @return
*/
public static List<Object> lGet(String key, long start, long end){
try {
return redisTemplate.opsForList().range(key, start, end);
} catch (Exception e) {
logger.error("RedisUtils lGet(String key, long start, long end) failure."+e.getMessage());
return null;
}
}
/**
* 获取list缓存的长度
* @param key 键
* @return
*/
public static long lGetListSize(String key){
try {
return redisTemplate.opsForList().size(key);
} catch (Exception e) {
logger.error("RedisUtils lGetListSize(String key) failure."+e.getMessage());
return 0;
}
}
/**
* 通过索引 获取list中的值
* @param key 键
* @param index 索引 index>=0时, 0 表头,1 第二个元素,依次类推;index<0时,-1,表尾,-2倒数第二个元素,依次类推
* @return
*/
public static Object lGetIndex(String key,long index){
try {
return redisTemplate.opsForList().index(key, index);
} catch (Exception e) {
logger.error("RedisUtils lGetIndex(String key,long index) failure."+e.getMessage());
return null;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @return
*/
public static boolean lSet(String key, Object value) {
try {
redisTemplate.opsForList().rightPush(key, value);
return true;
} catch (Exception e) {
logger.error("RedisUtils lSet(String key, Object value) failure."+e.getMessage());
return false;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(秒)
* @return
*/
public static 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) {
logger.error("RedisUtils lSet(String key, Object value, long time) failure."+e.getMessage());
return false;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @return
*/
public static boolean lSet(String key, List<Object> value) {
try {
redisTemplate.opsForList().rightPushAll(key, value);
return true;
} catch (Exception e) {
logger.error("RedisUtils lSet(String key, List<Object> value) failure."+e.getMessage());
return false;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(秒)
* @return
*/
public static 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) {
logger.error("RedisUtils lSet(String key, List<Object> value, long time) failure."+e.getMessage());
return false;
}
}
/**
* 根据索引修改list中的某条数据
* @param key 键
* @param index 索引
* @param value 值
* @return
*/
public static boolean lUpdateIndex(String key, long index,Object value) {
try {
redisTemplate.opsForList().set(key, index, value);
return true;
} catch (Exception e) {
logger.error("RedisUtils lUpdateIndex(String key, long index,Object value) failure."+e.getMessage());
return false;
}
}
/**
* 移除N个值为value
* @param key 键
* @param count 移除多少个
* @param value 值
* @return 移除的个数
*/
public static long lRemove(String key,long count,Object value) {
try {
Long remove = redisTemplate.opsForList().remove(key, count, value);
return remove;
} catch (Exception e) {
logger.error("RedisUtils lRemove(String key,long count,Object value) failure."+e.getMessage());
return 0;
}
}
}
获取Bean的工具类
package com.jy.chat_status_server.common.utils;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
@Component
public class ApplicationHelper implements ApplicationContextAware {
private static ApplicationContext applicationContext;
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
ApplicationHelper.applicationContext= applicationContext;
}
public static Object getBean(String name){
System.out.println(applicationContext);
return applicationContext.getBean(name);
}
}