spring boot整合redis实现RedisTemplate三分钟快速入门

  org.springframework.boot
  spring-boot-starter-data-redis

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

判断key是否存在

 
  @GetMapping("haskey")
  public boolean hasKey(String key) {
    return redisTemplate.hasKey(key);
  }

获取指定的key的失效时间

 
  @GetMapping("expire")
  public void expire(String key, long time) {
    //参数一：key
    //参数二：睡眠时间
    //参数三：睡眠时间单位 TimeUnit.DAYS 天 TimeUnit.HOURS 小时 。。。
    redisTemplate.expire(key, time, TimeUnit.MINUTES);
  }

根据key获取过期时间

 
  @GetMapping("getexpire")
  public long getExpire(String key) {
    Long expire = redisTemplate.getExpire(key);
    return expire;
  }

根据key删除reids中缓存数据

 
  @GetMapping("delredisbykey")
  public void delete(String key) {
    redisTemplate.delete(key);
  }

保存和读取String

 
  @GetMapping("stringredisdemo")
  public String stringredisdemo() {
    //设置过期时间为1分钟
    redisTemplate.opsForValue().set("key1", "value1", 1, TimeUnit.MINUTES);
    redisTemplate.opsForValue().set("key2", "value2");
    redisTemplate.opsForValue().set("key3", "value3");
    //读取redis数据
    String result1 = redisTemplate.opsForValue().get("key1").toString();
    String result2 = redisTemplate.opsForValue().get("key2").toString();
    String result3 = redisTemplate.opsForValue().get("key3").toString();
    System.out.println("缓存结果为：result：" + result1 + " " + result2 + "  " + result3);
    return "缓存结果为：result：" + result1 + " " + result2 + "  " + result3;
  }

保存和读取list

 
  @GetMapping("listredisdemo")
  public String listredisdemo() {
    List list1 = new ArrayList<>();
    list1.add("a1");
    list1.add("a2");
    list1.add("a3");
    List list2 = new ArrayList<>();
    list2.add("b1");
    list2.add("b2");
    list2.add("b3");
    redisTemplate.opsForList().leftPush("listkey1", list1);
    redisTemplate.opsForList().rightPush("listkey2", list2);
    List resultList1 = (List) redisTemplate.opsForList().leftPop("listkey1");
    List resultList2 = (List) redisTemplate.opsForList().rightPop("listkey2");
    System.out.println("resultList1:" + resultList1);
    System.out.println("resultList2:" + resultList2);
    return "成功";
  }

Hash结构，保存和读取map

 
  @GetMapping("mapredisdemo")
  public String mapredisdemo() {
    Map map = new HashMap<>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");
    map.put("key4", "value4");
    map.put("key5", "value5");
    redisTemplate.opsForHash().putAll("map1", map);
    Map resultMap = redisTemplate.opsForHash().entries("map1");
    List reslutMapList = redisTemplate.opsForHash().values("map1");
    Set resultMapSet = redisTemplate.opsForHash().keys("map1");
    String value = (String) redisTemplate.opsForHash().get("map1", "key1");
    System.out.println("value:" + value);
    System.out.println("resultMapSet:" + resultMapSet);
    System.out.println("resultMap:" + resultMap);
    System.out.println("resulreslutMapListtMap:" + reslutMapList);
    return "成功";
  }

保存和读取Set

 
  @GetMapping("setredisdemo")
  public String getredisdemo() {
    SetOperations set = redisTemplate.opsForSet();
    set.add("key1", "value1");
    set.add("key1", "value2");
    set.add("key1", "value3");
    Set resultSet = redisTemplate.opsForSet().members("key1");
    System.out.println("resultSet:" + resultSet);
    return "resultSet:" + resultSet;
  }

保存和读取zset

 
  @GetMapping("zsetredisdemo")
  public String zsetredisdemo() {
    ZSetOperations.TypedTuple