package com.moral.common.util;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.stereotype.Repository;
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import javax.annotation.Resource;
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import java.util.*;
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@Repository
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public class RedisHashUtil {
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@Resource
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private RedisTemplate<String,Object> redisTemplate;
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/**
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* 存储单个值至map中
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* @param redisKey redisKey中的key
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* @param mapKey map所对应的key
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* @param value map所对应的值
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*/
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public void addMapOne(String redisKey,String mapKey,Object value) {
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redisTemplate.opsForHash().put(redisKey, mapKey,value);
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}
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/**
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* 存储整个map至redis
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* @param key redis中存储的key
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* @param map 需缓存的Map
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*/
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public void addMapAll(String key, Map map) {
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redisTemplate.opsForHash().putAll(key, map);
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}
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/**
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* 获取整个HashMap
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* @param redisKey redis中存储的key
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* @return 整个Map
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*/
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public Map<String,Object> getMapAll(String redisKey) {
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Map<Object, Object> entries = redisTemplate.opsForHash().entries(redisKey);
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Map<String, Object> retEntries = new HashMap<>();
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for(Map.Entry<Object , Object> temp:entries.entrySet()){
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Object key = temp.getKey();
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Object value = temp.getValue();
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retEntries.put(String.valueOf(key) , value);
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}
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return retEntries;
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}
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/**
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* 获取redis中hash的所有value
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* @param redisKey
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* @return
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*/
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public List<Object> getMapValues(String redisKey) {
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return redisTemplate.opsForHash().values(redisKey);
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}
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/**
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* 删除Map中的某个键值对
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* @param redisKey
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* @param mapKey
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* @return 返回影响数量
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*/
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public Long deleteMapVal(String redisKey , Object ... mapKey) {
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return redisTemplate.opsForHash().delete(redisKey , mapKey);
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}
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/**
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* 确定hashkey是否存在
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* @param redisKey redis存储的key
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* @param mapKey 需要确定的map对象key
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* @return
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*/
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public boolean hasKey(String redisKey , String mapKey) {
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return redisTemplate.opsForHash().hasKey(redisKey , mapKey);
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}
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/**
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* 获取Map中具体的值
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* @param redisKey redis存储的key
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* @param mapKey 获取的map对象key
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* @return
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*/
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public Object getMapVal(String redisKey, String mapKey) {
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return redisTemplate.opsForHash().get(redisKey,mapKey);
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}
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/**
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* 从哈希中获取给定key的值
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* @param redisKey redis存储的key
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* @param mapKeys 需要去出的key的集合
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* @return 值列表
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*/
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public List<Object> multiGetHash(String redisKey , List<Object> mapKeys) {
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return redisTemplate.opsForHash().multiGet(redisKey , mapKeys);
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}
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/**
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* 获取所有map中的key
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* @param redisKey
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* @return
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*/
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public Set<String> getHashKeys(String redisKey) {
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Set<Object> keys = redisTemplate.opsForHash().keys(redisKey);
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Set<String> retKeys = new HashSet<>();
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for (Object key : keys) {
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retKeys.add(String.valueOf(key));
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}
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return retKeys;
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}
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/**
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* 获取所有map中的key的数量
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* @param redisKey redis中的key
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* @return key的数量
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*/
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public int getHashSize(String redisKey) {
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Set<Object> keys = redisTemplate.opsForHash().keys(redisKey);
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if(keys == null){
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return 0;
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}
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return keys.size();
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}
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}
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