springboot集成redis详解

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springboot集成redis非常简单

1、引入maven依赖redis包

<!--  springboot整合 redis -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-redis</artifactId>
</dependency>

2、application.yml配置文件中配置redis环境

spring:
  redis:
    host: localhost
    #password: redispassword
    port: 6379
    pool:
      max-idle: 100
      min-idle: 1
      max-active: 1000
      max-wait: -1

3、书写配置文件RedisConfig

package com.kinder.redis;

import java.lang.reflect.Method;

import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
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.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;

@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {

	/**
	 * 生成key的策略
	 *
	 * @return
	 */
	@Bean
	public KeyGenerator keyGenerator() {
		return new KeyGenerator() {
			@Override
			public Object generate(Object target, Method method, Object... params) {
				StringBuilder sb = new StringBuilder();
				sb.append(target.getClass().getName());
				sb.append(method.getName());
				for (Object obj : params) {
					sb.append(obj.toString());
				}
				return sb.toString();
			}
		};
	}

	/**
	 * 管理缓存
	 */
	@Bean
	public CacheManager cacheManager(RedisTemplate redisTemplate) {
		RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
		return rcm;
	}

	/**
	 * RedisTemplate配置
	 */
	@Bean
	public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
		StringRedisTemplate template = new StringRedisTemplate(factory);
		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);
		template.setValueSerializer(jackson2JsonRedisSerializer);
		template.afterPropertiesSet();
		return template;
	}
}

4、编写redis的service的服务类

package com.kinder.redis;

import java.io.Serializable;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.ListOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.SetOperations;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.data.redis.core.ZSetOperations;
import org.springframework.stereotype.Service;

@Service
public class RedisService {
	@Autowired
	private RedisTemplate redisTemplate;

	/**
	 * 写入缓存
	 *
	 * @param key
	 * @param value
	 * @return
	 */
	public boolean set(final String key, Object value) {
		boolean result = false;
		try {
			ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
			operations.set(key, value);
			result = true;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return result;
	}

	/**
	 * 写入缓存设置时效时间
	 *
	 * @param key
	 * @param value
	 * @return
	 */
	public boolean set(final String key, Object value, Long expireTime) {
		boolean result = false;
		try {
			ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
			operations.set(key, value);
			redisTemplate.expire(key, expireTime, TimeUnit.SECONDS);
			result = true;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return result;
	}

	/**
	 * 批量删除对应的value
	 *
	 * @param keys
	 */
	public void remove(final String... keys) {
		for (String key : keys) {
			remove(key);
		}
	}

	/**
	 * 批量删除key
	 *
	 * @param pattern
	 */
	public void removePattern(final String pattern) {
		Set<Serializable> keys = redisTemplate.keys(pattern);
		if (keys.size() > 0)
			redisTemplate.delete(keys);
	}

	/**
	 * 删除对应的value
	 *
	 * @param key
	 */
	public void remove(final String key) {
		if (exists(key)) {
			redisTemplate.delete(key);
		}
	}

	/**
	 * 判断缓存中是否有对应的value
	 *
	 * @param key
	 * @return
	 */
	public boolean exists(final String key) {
		return redisTemplate.hasKey(key);
	}

	/**
	 * 读取缓存
	 *
	 * @param key
	 * @return
	 */
	public Object get(final String key) {
		ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
		return operations.get(key);
	}

	/**
	 * 哈希 添加
	 *
	 * @param key
	 * @param hashKey
	 * @param value
	 */
	public void hmSet(String key, Object hashKey, Object value) {
		HashOperations<String, Object, Object> hash = redisTemplate.opsForHash();
		hash.put(key, hashKey, value);
	}

	/**
	 * 哈希获取数据
	 *
	 * @param key
	 * @param hashKey
	 * @return
	 */
	public Object hmGet(String key, Object hashKey) {
		HashOperations<String, Object, Object> hash = redisTemplate.opsForHash();
		return hash.get(key, hashKey);
	}

	/**
	 * 列表添加
	 *
	 * @param k
	 * @param v
	 */
	public void lPush(String k, Object v) {
		ListOperations<String, Object> list = redisTemplate.opsForList();
		list.rightPush(k, v);
	}

	/**
	 * 列表获取
	 *
	 * @param k
	 * @param l
	 * @param l1
	 * @return
	 */
	public List<Object> lRange(String k, long l, long l1) {
		ListOperations<String, Object> list = redisTemplate.opsForList();
		return list.range(k, l, l1);
	}

	/**
	 * 集合添加
	 *
	 * @param key
	 * @param value
	 */
	public void add(String key, Object value) {
		SetOperations<String, Object> set = redisTemplate.opsForSet();
		set.add(key, value);
	}

	/**
	 * 集合获取
	 *
	 * @param key
	 * @return
	 */
	public Set<Object> setMembers(String key) {
		SetOperations<String, Object> set = redisTemplate.opsForSet();
		return set.members(key);
	}

	/**
	 * 有序集合添加
	 *
	 * @param key
	 * @param value
	 * @param scoure
	 */
	public void zAdd(String key, Object value, double scoure) {
		ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
		zset.add(key, value, scoure);
	}

	/**
	 * 有序集合获取
	 *
	 * @param key
	 * @param scoure
	 * @param scoure1
	 * @return
	 */
	public Set<Object> rangeByScore(String key, double scoure, double scoure1) {
		ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
		return zset.rangeByScore(key, scoure, scoure1);
	}
}

5、操作redis。

package com.kinder.demo.controller;

import java.util.HashMap;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.kinder.redis.RedisService;
import com.kinder.util.ResultUtil;

/**
 * redis操作
 *
 * @author Administrator
 *
 */
@Controller
@RequestMapping("/demo/redis")
public class RedisController {

	@Autowired
	private RedisService redisService;

	/**
	 * 设置Redis数据
	 *
	 * @param key
	 * @param value
	 * @return
	 */
	@RequestMapping("/setRedis.do")
	@ResponseBody
	public Object setRedis(String key, String value) {
		redisService.set(key, value);
		return ResultUtil.returnSuccess();
	}

	/**
	 * 根据key删除Redis数据
	 *
	 * @param key
	 * @return
	 */
	@RequestMapping("/delRedis.do")
	@ResponseBody
	public Object delRedis(String key) {
		redisService.remove(key);
		return ResultUtil.returnSuccess();
	}

	/**
	 * 根据key获取Redis数据
	 *
	 * @param key
	 * @return
	 */
	@RequestMapping("/getRedis.do")
	@ResponseBody
	public Object getRedis(String key) {
		Object value = redisService.get(key);
		Map<String, Object> map = new HashMap<String, Object>();
		map.put("value", value);
		return ResultUtil.returnSuccess(map);
	}
}

The end.

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