org.springframework.boot
spring-boot-starter-data-redis
spring:
#redis配置信息
redis:
#redis 服务器地址
hostName: redis.confedu.com
#redis端口
port: 6379
#redis 密码
password: 123456
#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: 0
package com.example.framework.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;
import redis.clients.jedis.JedisPoolConfig;
import java.nio.charset.Charset;
/**
* redis 配置类
* @author: example
* @create: 2019/5/31
*/
@Configuration
public class RedisConfig {
@Autowired
private MyStringSerializer myStringSerializer;
@Value("${spring.redis.hostName}")
private String hostName;
@Value("${spring.redis.port}")
private Integer port;
@Value("${spring.redis.password}")
private String password;
@Value("${spring.redis.timeout}")
private Integer timeout;
@Value("${spring.redis.maxIdle}")
private Integer maxIdle;
@Value("${spring.redis.maxActive}")
private String maxActive;
@Value("${spring.redis.maxTotal}")
private Integer maxTotal;
@Value("${spring.redis.maxWaitMillis}")
private Long maxWaitMillis;
@Value("${spring.redis.minEvictableIdleTimeMillis}")
private Long minEvictableIdleTimeMillis;
@Value("${spring.redis.numTestsPerEvictionRun}")
private Integer numTestsPerEvictionRun;
@Value("${spring.redis.timeBetweenEvictionRunsMillis}")
private Long timeBetweenEvictionRunsMillis;
@Value("${spring.redis.testOnBorrow}")
private boolean testOnBorrow;
@Value("${spring.redis.testWhileIdle}")
private boolean testWhileIdle;
@Value("${spring.redis.database}")
private Integer database;
/**
* 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;
}
/**
* jedis连接工厂
* @param jedisPoolConfig
* @return
*/
@Bean
public RedisConnectionFactory redisConnectionFactory(JedisPoolConfig jedisPoolConfig) {
RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
//设置redis服务器的host或者ip地址
redisStandaloneConfiguration.setHostName(hostName);
redisStandaloneConfiguration.setPort(port);
redisStandaloneConfiguration.setPassword(password);
redisStandaloneConfiguration.setDatabase(database);
//获得默认的连接池构造
//这里需要注意的是,edisConnectionFactoryJ对于Standalone模式的没有(RedisStandaloneConfiguration,JedisPoolConfig)的构造函数,对此
//我们用JedisClientConfiguration接口的builder方法实例化一个构造器,还得类型转换
JedisClientConfiguration.JedisPoolingClientConfigurationBuilder jpcf = (JedisClientConfiguration.JedisPoolingClientConfigurationBuilder) JedisClientConfiguration.builder();
//修改我们的连接池配置
jpcf.poolConfig(jedisPoolConfig);
//通过构造器来构造jedis客户端配置
JedisClientConfiguration jedisClientConfiguration = jpcf.build();
return new JedisConnectionFactory(redisStandaloneConfiguration, jedisClientConfiguration);
}
@Bean
public RedisCacheManager cacheManager(RedisConnectionFactory connectionFactory){
return RedisCacheManager.create(connectionFactory);
}
/**
* 实例化 RedisTemplate
* @param redisConnectionFactory
* @return
*/
@Bean(name = "redisTemplate")
public RedisTemplate functionDomainRedisTemplate(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate redisTemplate = new RedisTemplate<>();
redisTemplate.setConnectionFactory(redisConnectionFactory);
// 使用Jackson2JsonRedisSerialize 替换默认序列化
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);
//设置value的序列化规则和 key的序列化规则
RedisSerializer stringSerializer = new StringRedisSerializer(Charset.forName("UTF8"));
redisTemplate.setKeySerializer(stringSerializer );
redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
redisTemplate.setHashKeySerializer(stringSerializer );
redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
redisTemplate.afterPropertiesSet();
return redisTemplate;
}
}
package com.example.framework.util;
import com.example.common.utils.spring.SpringUtils;
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 RedisUtils {
/**
* 日志对象
*/
private static Logger logger = LoggerFactory.getLogger(RedisUtils.class);
/**
* The constant RUN_MESSAGE.
*/
private static RedisTemplate redisTemplate = SpringUtils.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
注:欢迎指正