一、Spring boot 配置
配置redis三种模式,根据不同模式加载
spring:
#redis相关配置
redis:
#ALONE:单机模式、CLUSTER:集群、SENTINEL:哨兵
mode:ALONE
hostName:47.93.16.119
#password:
port:6379
timeout:10000
maxIdle:300
maxTotal:1000
minEvictableIdleTimeMillis:30000
numTestsPerEvictionRun:1024
timeBetweenEvictionRunsMillis:30000
testOnBorrow:true
testWhileIdle:true
# cluster:
#集群服务器,以“,”分隔
# nodes:
# max-redirects:
# sentinel:
#哨兵服务器,以“,”分隔
# nodes
# ...
二、动态读取配置文件
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
/**
* redis自动配置
* @author Jang
*
*/
@ConfigurationProperties(prefix="spring.redis")
public class RedisProperties {
//模式
private String mode;
//Matser的ip地址
private String hostName;
//端口号
private Integer port;
private String password;
private Integer timeout;
private Integer maxIdle;
//private String maxActive;
private Integer maxTotal;
private Integer maxWaitMillis;
private Integer minEvictableIdleTimeMillis;
private Integer numTestsPerEvictionRun;
private long timeBetweenEvictionRunsMillis;
private boolean testOnBorrow;
private boolean testWhileIdle;
//集群配置
@Value("${cluster.nodes}")
private String nodes;
@Value("${cluster.max-redirects}")
private Integer max_redirects;
//哨兵配置
}
三、Redis工厂,以不同模式连接服务器
import java.util.HashSet;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.data.redis.connection.RedisClusterConfiguration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisNode;
import org.springframework.data.redis.connection.RedisSentinelConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import redis.clients.jedis.JedisPoolConfig;
@EnableConfigurationProperties(RedisProperties.class)
public class RedisAutoConfiguration {
private static final Logger logger = LoggerFactory.getLogger(RedisAutoConfiguration.class);
/**
* Redis连接模式:
* ALONE:单机
* CLUSTER:集群
* SENTINEL:哨兵
*/
public static String ALONE="ALONE";
public static String CLUSTER="CLUSTER";
public static String SENTINEL="SENTINEL";
@Autowired
private RedisProperties redisProperties;
/**
* JedisPoolConfig 连接池
* @return
*/
@Bean
public JedisPoolConfig jedisPoolConfig() {
JedisPoolConfig jedisPoolConfig =new JedisPoolConfig();
// 最大空闲数
if(redisProperties.getMaxIdle()>0) {
jedisPoolConfig.setMaxIdle(redisProperties.getMaxIdle());
logger.info("setMaxIdle --->"+redisProperties.getMaxIdle());
}
// 连接池的最大数据库连接数
if(redisProperties.getMaxTotal()>0) {
jedisPoolConfig.setMaxTotal(redisProperties.getMaxTotal());
}
// 最大建立连接等待时间
if(redisProperties.getMaxWaitMillis()>0) {
jedisPoolConfig.setMaxWaitMillis(redisProperties.getMaxWaitMillis());
}
// 逐出连接的最小空闲时间 默认1800000毫秒(30分钟)
if(redisProperties.getMinEvictableIdleTimeMillis()>0) {
jedisPoolConfig.setMinEvictableIdleTimeMillis(redisProperties.getMinEvictableIdleTimeMillis());
}
// 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(redisProperties.getNumTestsPerEvictionRun());
// 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(redisProperties.getTimeBetweenEvictionRunsMillis());
// 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(redisProperties.isTestOnBorrow());
// 在空闲时检查有效性, 默认false
jedisPoolConfig.setTestWhileIdle(redisProperties.isTestWhileIdle());
return jedisPoolConfig;
}
/**
* Redis集群的配置
* @return RedisClusterConfiguration
* @throws
*/
@Bean
public RedisClusterConfiguration redisClusterConfiguration(){
RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration();
//Set<RedisNode> clusterNodes
String clusterNodes=redisProperties.getNodes();
logger.info("setClusterNodes-------->"+clusterNodes);
String[] serverArray = clusterNodes.split(",");
Set<RedisNode> nodes = new HashSet<RedisNode>();
for(String ipPort:serverArray){
String[] ipAndPort = ipPort.split(":");
nodes.add(new RedisNode(ipAndPort[0].trim(),Integer.valueOf(ipAndPort[1])));
}
redisClusterConfiguration.setClusterNodes(nodes);
redisClusterConfiguration.setMaxRedirects(redisProperties.getMax_redirects());
return redisClusterConfiguration;
}
/**
* 配置redis的哨兵
* @return RedisSentinelConfiguration
* @throws
*/
@Bean
public RedisSentinelConfiguration sentinelConfiguration(){
RedisSentinelConfiguration redisSentinelConfiguration = new RedisSentinelConfiguration();
// //配置matser的名称
// RedisNode redisNode = new RedisNode(redisProperties.getHostName(), redisProperties.getPort());
// redisNode.setName("mymaster");
// redisSentinelConfiguration.master(redisNode);
// //配置redis的哨兵sentinel
// RedisNode senRedisNode = new RedisNode(senHost1,senPort1);
// Set<RedisNode> redisNodeSet = new HashSet<>();
// redisNodeSet.add(senRedisNode);
// redisSentinelConfiguration.setSentinels(redisNodeSet);
return redisSentinelConfiguration;
}
/**
* 配置工厂
* @param jedisPoolConfig
* @return
*/
@Bean
public JedisConnectionFactory jedisConnectionFactory(JedisPoolConfig jedisPoolConfig,RedisClusterConfiguration redisClusterConfiguration,RedisSentinelConfiguration redisSentinelConfiguration) {
JedisConnectionFactory jedisConnectionFactory = null;
//根据模式配置工厂
//配置单机模式,或模式为空时采用单机模式连接
if(RedisAutoConfiguration.ALONE.equals(redisProperties.getMode())||redisProperties.getMode()==null) {
jedisConnectionFactory = new JedisConnectionFactory(jedisPoolConfig);
//连接池
jedisConnectionFactory.setPoolConfig(jedisPoolConfig);
//IP地址
jedisConnectionFactory.setHostName(redisProperties.getHostName());
//端口号
jedisConnectionFactory.setPort(redisProperties.getPort());
//如果Redis设置有密码
if(redisProperties.getPassword()!=null&&redisProperties.getPassword()!="") {
jedisConnectionFactory.setPassword(redisProperties.getPassword());
}
//客户端超时时间单位是毫秒
jedisConnectionFactory.setTimeout(redisProperties.getTimeout());
logger.info("redis factory:"+RedisAutoConfiguration.ALONE);
}else if(RedisAutoConfiguration.CLUSTER.equals(redisProperties.getMode())) {//集群模式
jedisConnectionFactory = new JedisConnectionFactory(redisClusterConfiguration,jedisPoolConfig);
logger.info("redis factory:"+RedisAutoConfiguration.CLUSTER);
}else if(RedisAutoConfiguration.SENTINEL.equals(redisProperties.getMode())) {//哨兵模式
jedisConnectionFactory = new JedisConnectionFactory(redisSentinelConfiguration,jedisPoolConfig);
logger.info("redis factory:"+RedisAutoConfiguration.SENTINEL);
}
return jedisConnectionFactory;
}
/**
* 实例化 RedisTemplate 对象
*
* @return
*/
@Bean
public RedisTemplate<String, Object> functionDomainRedisTemplate(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
initDomainRedisTemplate(redisTemplate, redisConnectionFactory);
return redisTemplate;
}
/**
* 设置数据存入 redis 的序列化方式,并开启事务
*
* @param redisTemplate
* @param factory
*/
private void initDomainRedisTemplate(RedisTemplate<String, Object> redisTemplate, RedisConnectionFactory factory) {
//如果不配置Serializer,那么存储的时候缺省使用String,如果用User类型存储,那么会提示错误User can't cast to String!
redisTemplate.setKeySerializer(new StringRedisSerializer());
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
// 开启事务
redisTemplate.setEnableTransactionSupport(true);
redisTemplate.setConnectionFactory(factory);
}
/**
* 注入封装RedisTemplate
* @Title: redisUtil
* @return RedisUtil
* @throws
*/
@Bean(name = "redisUtil")
public RedisUtil redisUtil(RedisTemplate<String, Object> redisTemplate) {
RedisUtil redisUtil = new RedisUtil();
redisUtil.setRedisTemplate(redisTemplate);
return redisUtil;
}
}
三、RedisUtil
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.util.CollectionUtils;
public class RedisUtil {
private RedisTemplate<String, Object> redisTemplate;
public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) {
this.redisTemplate = redisTemplate;
}
//=============================common============================
/**
* 指定缓存失效时间
* @param key 键
* @param time 时间(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 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 boolean hasKey(String key){
try {
return redisTemplate.hasKey(key);
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 删除缓存
* @param key 可以传一个值 或多个
*/
@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=============================
/**
* 普通缓存获取
* @param key 键
* @return 值
*/
public 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 boolean set(String key,Object value) {
try {
redisTemplate.opsForValue().set(key, value);
return true;
} catch (Exception e) {
e.printStackTrace();
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 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;
}
}
/**
* 递增
* @param key 键
* @param by 要增加几(大于0)
* @return
*/
public 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 by 要减少几(小于0)
* @return
*/
public 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);
}
//================================Map=================================
/**
* HashGet
* @param key 键 不能为null
* @param item 项 不能为null
* @return 值
*/
public 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 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 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 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 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 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;
}
}
/**
* 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 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 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 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 double hdecr(String key, String item,double by){
return redisTemplate.opsForHash().increment(key, item,-by);
}
//============================set=============================
/**
* 根据key获取Set中的所有值
* @param key 键
* @return
*/
public Set<Object> sGet(String key){
try {
return redisTemplate.opsForSet().members(key);
} catch (Exception e) {
e.printStackTrace();
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 boolean sHasKey(String key,Object value){
try {
return redisTemplate.opsForSet().isMember(key, value);
} catch (Exception e) {
e.printStackTrace();
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 long sSet(String key, Object...values) {
try {
return redisTemplate.opsForSet().add(key, values);
} catch (Exception e) {
e.printStackTrace();
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 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;
}
}
/**
* 获取set缓存的长度
* @param key 键
* @return
*/
public long sGetSetSize(String key){
try {
return redisTemplate.opsForSet().size(key);
} catch (Exception e) {
e.printStackTrace();
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 long setRemove(String key, Object ...values) {
try {
Long count = redisTemplate.opsForSet().remove(key, values);
return count;
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
//===============================list=================================
/**
* 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 List<Object> lGet(String key,long start, long end){
try {
return redisTemplate.opsForList().range(key, start, end);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 获取list缓存的长度
* @param key 键
* @return
*/
public long lGetListSize(String key){
try {
return redisTemplate.opsForList().size(key);
} catch (Exception e) {
e.printStackTrace();
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 Object lGetIndex(String key,long index){
try {
return redisTemplate.opsForList().index(key, index);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(秒)
* @return
*/
public boolean lSet(String key, Object value) {
try {
redisTemplate.opsForList().rightPush(key, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(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;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(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;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(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;
}
}
/**
* 根据索引修改list中的某条数据
* @param key 键
* @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个值为value
* @param key 键
* @param count 移除多少个
* @param value 值
* @return 移除的个数
*/
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;
}
}
}