java封装 redis 操作 对象，list集合 ，json串

/** * 功能说明: * 功能作者: * 创建日期: * 版权归属:每特教育|蚂蚁课堂所有 www.itmayiedu.com */package com.redis.service;

import java.util.Collection;import java.util.Map;import java.util.Set;import java.util.concurrent.TimeUnit;

import com.alibaba.fastjson.JSON;import com.fasterxml.jackson.databind.util.JSONPObject;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.redis.core.RedisTemplate;import org.springframework.data.redis.core.StringRedisTemplate;import org.springframework.stereotype.Component;

import ch.qos.logback.core.util.TimeUtil;

//  springboot 2.0 整合redis@Componentpublic class RedisService {

   @Autowired   private StringRedisTemplate stringRedisTemplate;   @Autowired   private RedisTemplate<Object,Object> template;

   public void set(String key, Object object, Long time) {      // 让该方法能够支持多种数据类型存放      // 如果存放时Set类型      if (object instanceof Set) {         setSet(key, object);      }      setString(key,object);

      // 设置有效期

      if (time != null) {         stringRedisTemplate.expire(key, time, TimeUnit.SECONDS);      }

   }

   public void setString(String key, Object object) {      String value = toJson(object);      // 存放string类型      stringRedisTemplate.opsForValue().set(key, value);   }   public void setMap(String key,Object object){      Map value=(Map) object;      stringRedisTemplate.opsForValue().multiGet((Collection<String>) value);   }

   public void setSet(String key, Object object) {      Set<String> valueSet = (Set<String>) object;      for (String string : valueSet) {         stringRedisTemplate.opsForSet().add(key, string);      }   }

   public String getString(String key) {      System.out.println("获取的数据格式是"+stringRedisTemplate.opsForValue().get(key) ) ;      return stringRedisTemplate.opsForValue().get(key);   }   /**    * Object转成JSON数据    */   private String toJson(Object object){      if(object instanceof Integer || object instanceof Long || object instanceof Float ||            object instanceof Double || object instanceof Boolean || object instanceof String){         return String.valueOf(object);      }      System.out.println("存入的数据格式是"+JSON.toJSONString(object));      return JSON.toJSONString(object);   }

   public  <T> T fromJson(String json, Class<T> clazz){      return JSON.parseObject(json, clazz);   }}