首先要定义一个BoundHashOperations

Java代码

  1. BoundHashOperations<String, String, Object> boundHashOperations = redisTemplate.boundHashOps("li");

1、put(HK key, HV value)

新增元素到指定键中

Java代码

  1. boundHashOperations.put("ww","i");

  2. boundHashOperations.put("w1","i1");

  3. boundHashOperations.put("w2","i2");

2、getKey()

获取指定键中的值

Java代码

  1. //获取设置的绑定key值

  2. System.out.println("获取设置的绑定key值:" + boundHashOperations.getKey());

3、values()

获取map中的值jdk要求1.8及以上

Java代码

  1. //获取map中的value值

  2. boundHashOperations.values().forEach(v -> System.out.println("获取map中的value值" + v));

4、entries()

获取map中的键值对

Java代码

  1. //获取map键值对

  2. boundHashOperations.entries().forEach((m,n) -> System.out.println("获取map键值对:" + m + "-" + n));

5、get(Object member)

获取map键中的值

Java代码

  1. //获取map键的值

  2. System.out.println("获取map建的值:" + boundHashOperations.get("w1"));

6、keys()

获取map的键

Java代码

  1. //获取map的键

  2. boundHashOperations.keys().forEach(v -> System.out.println("获取map的键:" + v));

7、multiGet(Collection[HK](https://docs.spring.io/spring-data/redis/docs/current/api/org/springframework/data/redis/core/BoundHashOperations.html) keys)

根据map键批量获取map值

Java代码

  1. //根据map键批量获取map值

  2. List list = new ArrayList<>(Arrays.asList("ww","w1"));

  3. boundHashOperations.multiGet(list).forEach(v -> System.out.println("根据map键批量获取map值:" + v));

8、putAll(Map<? extends HK,? extends HV> m)

批量添加键值对

Java代码

  1. //批量添加键值对

  2. Map map = new HashMap<>();

  3. map.put("m1","n1");

  4. map.put("m2","n2");

  5. boundHashOperations.putAll(map);

  6. boundHashOperations.entries().forEach((m,n) -> System.out.println("批量添加键值对:" + m + "-" + n));

9、increment(HK key, long delta)

自增长map键的值

Java代码

  1. //自增长map键的值

  2. boundHashOperations.increment("c",1);

  3. System.out.println("自增长map键的值:" + boundHashOperations.get("c"));

10、putIfAbsent(HK key, HV value)

添加不存在的map键

Java代码

  1. //如果map键不存在，则新增，存在，则不变

  2. boundHashOperations.putIfAbsent("m2","n2-1");

  3. boundHashOperations.putIfAbsent("m3","n3");

  4. boundHashOperations.entries().forEach((m,n) -> System.out.println("新增不存在的键值对:" + m + "-" + n));

11、size()

获取特定键对应的map大小

Java代码

  1. //查看绑定建的map大小

  2. System.out.println("查看绑定建的map大小:" + boundHashOperations.size());

12、scan(ScanOptions options)

扫描特定键所有值

Java代码

  1. //遍历绑定键获取所有值

  2. Cursor<Map.Entry<String, Object>> cursor = boundHashOperations.scan(ScanOptions.NONE);

  3. while (cursor.hasNext()){

  4. Map.Entry<String, Object> entry = cursor.next();

  5. System.out.println("遍历绑定键获取所有值:" + entry.getKey() + "---" + entry.getValue());

  6. }

13、delete(Object... keys)

批量删除map值

Java代码

  1. long delSize = boundHashOperations.delete("m3","m2");

  2. System.out.println("删除的键的个数:" + delSize);

  3. boundHashOperations.entries().forEach((m,n) -> System.out.println("删除后剩余map键值对:" + m + "-" + n));