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;  
        }  
    }  
}