StringRedisTemplate使用

引入maven坐标

       <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>1.5.8.RELEASE</version>
        </dependency>

application.yml文件中加入Redis配置

spring:
  application:
    name: knowledge-graph
  redis:
    port: 6379
    host: 110.141.17.80
    pool:
      max-active: 20
      max-idle: 20
      min-idle: 1
      max-wait: -1
    database: 0

在Service类中注入StringRedisTemplate对象

@Resource
    private StringRedisTemplate stringRedisTemplate;

RedisTemplate中定义了5种数据结构

//操作字符串
redisTemplate.opsForValue();
 //操作hash
redisTemplate.opsForHash();　　
//操作list
redisTemplate.opsForList();
//操作set
redisTemplate.opsForSet();　　  
//操作有序set
redisTemplate.opsForZSet();　 　

1.操作字符串

stringRedisTemplate.opsForValue().set("蜀国创始人","刘备");
stringRedisTemplate.opsForValue().get("蜀国创始人");

2.操作hash

Map<String,String> map=new HashMap<>();
map.put("军师","诸葛亮");
map.put("猛将1","赵子龙");
stringRedisTemplate.opsForHash().putAll("蜀国",map);
Set<Object> keys = stringRedisTemplate.opsForHash().keys("蜀国");
List<Object> values = stringRedisTemplate.opsForHash().values("蜀国");
Object value = stringRedisTemplate.opsForHash().get("蜀国","军师");

3.操作list

// 左侧写入
stringRedisTemplate.opsForList().leftPush("key", "value");
// 获取队列大小
long queueSize = stringRedisTemplate.opsForList().size("key");
// 从右侧取元素
String str = stringRedisTemplate.opsForList().rightPop("key");

4.操作set

// 添加元素
stringRedisTemplate.opsForSet().add("word_cloud","刘德华");
// 获取set集合
Set<String> set = stringRedisTemplate.opsForSet().members("word_cloud");