Redis-16.在Java中操作Redis-Spring Data Redis使用方式-操作有序集合类型的数据

一. 操作有序集合类型的数据

package com.sky.test;import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.*;import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;@SpringBootTest
public class SpringDataRedisTest {@Autowiredprivate RedisTemplate redisTemplate;@Testpublic void testRedisTemplate() {System.out.println(redisTemplate);  // 首先输出redisTemplate对象看是否为空ValueOperations valueOperations = redisTemplate.opsForValue();  // redis当中的字符串类型数据操作对象HashOperations hashOperations = redisTemplate.opsForHash();     // redis当中的哈希类型数据操作对象ListOperations listOperations = redisTemplate.opsForList();     // redis当中的列表类型数据操作对象SetOperations setOperations = redisTemplate.opsForSet();        // redis当中的集合类型数据操作对象ZSetOperations zSetOperations = redisTemplate.opsForZSet();     // redis当中的有序集合类型数据操作对象}/*操作字符串类型的数据*/@Testpublic void testString() {// set get setex setnxredisTemplate.opsForValue().set("city","北京");   // setString city = (String) redisTemplate.opsForValue().get("city");// getSystem.out.println(city);redisTemplate.opsForValue().set("code","1234",3, TimeUnit.MINUTES);     // setexredisTemplate.opsForValue().setIfAbsent("lock","1");   // setnxredisTemplate.opsForValue().setIfAbsent("lock","2");}/*操作哈希类型的数据*/@Testpublic void testHash() {// hset hget hdel hkeys hvalsHashOperations hashOperations = redisTemplate.opsForHash();hashOperations.put("100","name","Rose");    // put(Object key,Object hashKey,Object value)hashOperations.put("100","age","22");   // 对应hsetString name = (String) hashOperations.get("100", "name");   // 对应hgetSystem.out.println(name);Set keys = hashOperations.keys("100");      // 对应hkeysSystem.out.println(keys);List values = hashOperations.values("100");     // 对应hvalsSystem.out.println(values);hashOperations.delete("100","name");  // 对应hdel}/*操作列表类型的数据*/@Testpublic void testList() {// LPUSH, lrange， rpop，llenListOperations listOperations = redisTemplate.opsForList();// leftPushAll(Object key, Object ...values)：一次往列表中插入多个元素listOperations.leftPushAll("mylist","a","b","c");// leftPush(Object key, Object value)：往列表中插入单个元素listOperations.leftPush("mylist","d");// range(Object key,Long start, Long end)：获取列表指定范围内的元素，并构成一个列表List mylist = listOperations.range("mylist", 0, -1);System.out.println(mylist);// rightPop(Object key)：移除并获取列表的最后一个元素String rightPop = (String) listOperations.rightPop("mylist");System.out.println(rightPop);// size(Object key)：获取列表长度Long length = listOperations.size("mylist");System.out.println(length);}/*操作集合类型的数据*/@Testpublic void testSet() {// sadd smembers scard sinter sunion sremSetOperations setOperations = redisTemplate.opsForSet();// add(Object key Object... value)setOperations.add("set1","a","b","c","d");setOperations.add("set2","a","b","x","y");// members(Object key)Set set1 = setOperations.members("set1");System.out.println(set1);// size(Object key)Long size = setOperations.size("set1");System.out.println(size);// intersect(Object key,Object otherKey)Set intersect = setOperations.intersect("set1", "set2");System.out.println(intersect);// union(Object key,Object otherKey)Set union = setOperations.union("set1", "set2");System.out.println(union);// remove(Object key,Object... value)setOperations.remove("set1","a","b");}/*操作有序集合的数据*/@Testpublic void testZSet(){// zadd zrange zincrby zremZSetOperations zSetOperations = redisTemplate.opsForZSet();// add(Object key, Object value, double score)zSetOperations.add("zset1","a",10);zSetOperations.add("zset1","b",11);zSetOperations.add("zset1","c",13);// range(Object key,long start,long end)Set zset1 = zSetOperations.range("zset1", 0, -1);System.out.println(zset1);// incrementScore(Object key, Object value, double incrementScore)zSetOperations.incrementScore("zset1","a",4);// remove(Object key, Object... value)zSetOperations.remove("zset1","a","b");}}

1.  add(Object key, Object value, double score)        向集合中添加数据，添加其key，value以及score。对应于zadd。

2.  range(Object key,long start,long end)        获取集合中的数据，对应于range。 

 3.  incrementScore(Object key,Object value, double incrementScore)        给集合中指定的元素加上增量，对应于zincrby。

4.remove(Object key, Object... value)        移除集合中的元素，对应于zrem