mirror of
https://github.com/PlayEdu/PlayEdu
synced 2025-06-08 02:04:04 +08:00
663 lines
16 KiB
Java
663 lines
16 KiB
Java
package xyz.playedu.api.util;
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import jakarta.annotation.Resource;
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import org.springframework.data.redis.connection.RedisConnection;
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import org.springframework.data.redis.core.Cursor;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.data.redis.core.ScanOptions;
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import org.springframework.data.redis.serializer.RedisSerializer;
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import org.springframework.stereotype.Component;
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import org.springframework.util.CollectionUtils;
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import xyz.playedu.api.config.PlayEduConfig;
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import java.util.*;
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import java.util.concurrent.TimeUnit;
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@Component
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public class RedisUtil {
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private static RedisTemplate<String, Object> redisTemplate;
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private static final String redisPrefix = PlayEduConfig.REDIS_PREFIX;
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/**
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* 注入Redis
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*
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* @param redisTemplate Redis对象
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* @author fzr
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*/
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@Resource
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public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) {
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RedisUtil.redisTemplate = redisTemplate;
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}
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/**
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* 对象句柄
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*
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* @return RedisTemplate
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* @author fzr
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*/
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public static RedisTemplate<String, Object> handler() {
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return redisTemplate;
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}
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/**
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* 指定缓存失效时间
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*
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* @param key 键
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* @param second 时间(秒)
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* @author fzr
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*/
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public static void expire(String key, Long second) {
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key = redisPrefix + key;
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redisTemplate.expire(key, second, TimeUnit.SECONDS);
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}
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/**
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* 指定缓存失效时间
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*
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* @param key 键
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* @param millisecond 时间(毫秒)
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* @author fzr
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*/
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public static void pExpire(String key, Long millisecond) {
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key = redisPrefix + key;
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redisTemplate.expire(key, millisecond, TimeUnit.MILLISECONDS);
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}
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/**
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* 指定缓存永久有效
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*
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* @param key 键
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* @author fzr
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*/
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public static void persist(String key) {
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key = redisPrefix + key;
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redisTemplate.persist(key);
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}
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/**
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* 根据key获取过期时间
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*
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* @param key 键不能为null
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* @return 返回0代表为永久有效(秒)
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* @author fzr
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*/
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public static Long ttl(String key) {
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key = redisPrefix + key;
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return redisTemplate.getExpire(key, TimeUnit.SECONDS);
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}
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/**
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* 根据key获取过期时间
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*
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* @param key 键不能为null
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* @return 返回0代表为永久有效(毫秒)
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* @author fzr
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*/
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public static Long pTtl(String key) {
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key = redisPrefix + key;
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return redisTemplate.getExpire(key, TimeUnit.MILLISECONDS);
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}
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/**
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* 判断key是否存在
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*
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* @param key 键
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* @return true=存在,false=不存在
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* @author fzr
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*/
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public static Boolean exists(String key) {
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key = redisPrefix + key;
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return redisTemplate.hasKey(key);
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}
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/**
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* 删除1个或多个键
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*
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* @param key 键(一个或多个)
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* @author fzr
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*/
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@SuppressWarnings("unchecked")
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public static void del(String... key) {
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if (key.length == 1) {
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key[0] = redisPrefix + key[0];
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redisTemplate.delete(key[0]);
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} else {
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for (int i = 0; key.length > i; i++) {
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key[i] = redisPrefix + key[i];
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}
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redisTemplate.delete((Collection<String>) CollectionUtils.arrayToList(key));
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}
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}
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/**
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* 给key赋值一个新的key名
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*
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* @param oldKey 旧的key
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* @param newKey 新的key
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* @author fzr
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*/
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public static void rename(String oldKey, String newKey) {
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oldKey = redisPrefix + oldKey;
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newKey = redisPrefix + newKey;
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redisTemplate.rename(oldKey, newKey);
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}
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/**
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* 将当前数据库的key移动到给定的数据库db当中
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*
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* @param key 键
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* @param db 库
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* @return Boolean
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* @author fzr
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*/
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public static Boolean move(String key, int db) {
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key = redisPrefix + key;
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return redisTemplate.move(key, db);
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}
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/**
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* 获取匹配的key值
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*
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* @param pattern 通配符(*, ?, [])
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* @return Set
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* @author fzr
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* @author fzr
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*/
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public static Set<String> keys(String pattern) {
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return redisTemplate.keys(pattern);
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}
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/**
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* 随机返回一个key
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*
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* @return String
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* @author fzr
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* @author fzr
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*/
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public static String randomKey() {
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return redisTemplate.randomKey();
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}
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/* ***************** common end *************** */
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/**
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* 按匹配获取或有KEY
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*
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* @param pattern 规则
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* @return Set<String>
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* @author fzr
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*/
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public static Set<String> matchSet(String pattern) {
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Set<String> keys = new LinkedHashSet<>();
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RedisUtil.handler().execute((RedisConnection connection) -> {
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try (Cursor<byte[]> cursor = connection.scan(
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ScanOptions.scanOptions()
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.count(Long.MAX_VALUE)
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.match(pattern)
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.build()
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)) {
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cursor.forEachRemaining(item -> {
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keys.add(RedisSerializer.string().deserialize(item));
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});
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return null;
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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});
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return keys;
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}
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/**
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* 获取key的值
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*
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* @param key 键
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* @return Object
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* @author fzr
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*/
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public static Object get(String key) {
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key = redisPrefix + key;
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return redisTemplate.opsForValue().get(key);
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}
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/**
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* 获取旧值并设置新值
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*
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* @param key 键
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* @param newVal 新值
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* @return Object
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* @author fzr
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*/
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public static Object getSet(String key, Object newVal) {
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key = redisPrefix + key;
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return redisTemplate.opsForValue().getAndSet(key, newVal);
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}
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/**
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* 设置键值对
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*
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* @param key 键
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* @param value 值
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* @author fzr
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*/
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public static void set(String key, Object value) {
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key = redisPrefix + key;
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redisTemplate.opsForValue().set(key, value);
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}
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/**
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* 设置键值对并设置时间
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*
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* @param key 键
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* @param value 值
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* @param time time要大于0 如果time小于等于0 将设置无限期
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* @author fzr
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*/
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public static void set(String key, Object value, long time) {
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key = redisPrefix + key;
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if (time > 0) {
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redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);
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} else {
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set(key, value);
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}
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}
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/**
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* 递增
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*
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* @param key 键
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* @param delta 要增加几(大于0)
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* @return Long
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* @author fzr
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*/
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public static Long incr(String key, long delta) {
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if (delta < 0) {
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throw new RuntimeException("递增因子必须大于0");
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}
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key = redisPrefix + key;
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return redisTemplate.opsForValue().increment(key, delta);
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}
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/**
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* 递减
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*
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* @param key 键
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* @param delta 要减少几(小于0)
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* @return Long
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* @author fzr
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*/
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public static Long decr(String key, long delta) {
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if (delta < 0) {
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throw new RuntimeException("递减因子必须大于0");
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}
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key = redisPrefix + key;
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return redisTemplate.opsForValue().increment(key, -delta);
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}
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/* ***************** String end *************** */
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/**
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* 获取key中field域的值
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*
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* @param key 键 不能为null
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* @param field 项 不能为null
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* @return 值
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* @author fzr
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*/
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public static Object hGet(String key, String field) {
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key = redisPrefix + key;
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return redisTemplate.opsForHash().get(key, field);
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}
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/**
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* 判断key中有没有field域名
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*
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* @param key 键
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* @param field 字段
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* @return Boolean
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* @author fzr
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*/
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public static Boolean hExists(String key, Object field) {
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key = redisPrefix + key;
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return redisTemplate.opsForHash().hasKey(key, field);
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}
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/**
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* 获取hashKey对应的所有键值
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*
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* @param key 键
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* @return 对应的多个键值
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* @author fzr
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*/
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public Map<Object, Object> hmGet(String key) {
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key = redisPrefix + key;
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return redisTemplate.opsForHash().entries(key);
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}
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/**
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* 设置field1->N个域,对应的值是value1->N
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*
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* @param key 键
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* @param map 对应多个键值
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* @author fzr
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*/
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public static void hmSet(String key, Map<String, Object> map) {
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key = redisPrefix + key;
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redisTemplate.opsForHash().putAll(key, map);
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}
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/**
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* HashSet 并设置时间
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*
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* @param key 键
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* @param map 对应多个键值
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* @param time 时间(秒)
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* @author fzr
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*/
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public static void hmSet(String key, Map<String, Object> map, long time) {
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key = redisPrefix + key;
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redisTemplate.opsForHash().putAll(key, map);
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if (time > 0) {
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expire(key, time);
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}
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}
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/**
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* 向一张hash表中放入数据,如果不存在将创建
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*
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* @param key 键
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* @param item 项
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* @param value 值
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* @author fzr
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*/
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public static void hSet(String key, String item, Object value) {
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key = redisPrefix + key;
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redisTemplate.opsForHash().put(key, item, value);
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}
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/**
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* 向一张hash表中放入数据,如果不存在将创建
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*
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* @param key 键
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* @param item 项
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* @param value 值
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* @param time 时间(秒) 注意:如果已存在的hash表有时间,这里将会替换原有的时间
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* @return true 成功 false失败
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* @author fzr
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*/
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public static boolean hSet(String key, String item, Object value, long time) {
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key = redisPrefix + key;
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redisTemplate.opsForHash().put(key, item, value);
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if (time > 0) {
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expire(key, time);
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}
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return true;
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}
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/**
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* 删除hash表中的值
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*
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* @param key 键 不能为null
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* @param item 项 可以使多个 不能为null
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* @author fzr
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*/
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public static void hDel(String key, Object... item) {
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key = redisPrefix + key;
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redisTemplate.opsForHash().delete(key, item);
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}
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/**
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* 判断hash表中是否有该项的值
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*
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* @param key 键 不能为null
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* @param item 项 不能为null
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* @return true 存在 false不存在
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* @author fzr
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*/
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public static boolean hHasKey(String key, String item) {
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key = redisPrefix + key;
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return redisTemplate.opsForHash().hasKey(key, item);
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}
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/**
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* hash递增 如果不存在,就会创建一个并把新增后的值返回
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*
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* @param key 键
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* @param item 项
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* @param by 要增加几(大于0)
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* @return double
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* @author fzr
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*/
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public static double hIncr(String key, String item, long by) {
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key = redisPrefix + key;
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return redisTemplate.opsForHash().increment(key, item, by);
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}
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/**
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* hash递减
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*
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* @param key 键
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* @param item 项
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* @param by 要减少记(小于0)
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* @return double
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* @author fzr
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*/
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public static double hDecr(String key, String item, long by) {
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key = redisPrefix + key;
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return redisTemplate.opsForHash().increment(key, item, -by);
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}
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/* ***************** Map end *************** */
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/**
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* 根据key获取Set中的所有值
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*
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* @param key 键
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* @return Set
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* @author fzr
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*/
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public static Set<Object> sGet(String key) {
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key = redisPrefix + key;
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return redisTemplate.opsForSet().members(key);
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}
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/**
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* 根据value从一个set中查询,是否存在
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*
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* @param key 键
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* @param value 值
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* @return true 存在 false不存在
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* @author fzr
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*/
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public Boolean sHasKey(String key, Object value) {
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key = redisPrefix + key;
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return redisTemplate.opsForSet().isMember(key, value);
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}
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/**
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* 将数据放入set缓存
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*
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* @param key 键
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* @param values 值 可以是多个
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* @return 成功个数
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* @author fzr
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*/
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public static Long sSet(String key, Object... values) {
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key = redisPrefix + key;
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return redisTemplate.opsForSet().add(key, values);
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}
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/**
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* 将set数据放入缓存
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*
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* @param key 键
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* @param time 时间(秒)
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* @param values 值 可以是多个
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* @return 成功个数
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* @author fzr
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*/
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public Long sSetAndTime(String key, long time, Object... values) {
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key = redisPrefix + key;
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return redisTemplate.opsForSet().add(key, values);
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}
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/**
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* 获取set缓存的长度
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*
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* @param key 键
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* @return Long
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* @author fzr
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*/
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public Long sGetSetSize(String key) {
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key = redisPrefix + key;
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return redisTemplate.opsForSet().size(key);
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}
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/**
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* 移除值为value的
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*
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* @param key 键
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* @param values 值 可以是多个
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* @return 移除的个数
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* @author fzr
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*/
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public Long setRemove(String key, Object... values) {
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key = redisPrefix + key;
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return redisTemplate.opsForSet().remove(key, values);
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}
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/* ***************** Set end *************** */
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/**
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* 获取list缓存的内容
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*
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* @param key 键
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* @param start 开始
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* @param end 结束 0 到 -1代表所有值
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* @return List
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* @author fzr
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*/
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public List<Object> lGet(String key, long start, long end) {
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key = redisPrefix + key;
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return redisTemplate.opsForList().range(key, start, end);
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}
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/**
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* 获取list缓存的长度
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*
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* @param key 键
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* @return Long
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* @author fzr
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*/
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public Long lGetListSize(String key) {
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key = redisPrefix + key;
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return redisTemplate.opsForList().size(key);
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}
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/**
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* 通过索引获取list中的值
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*
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* @param key 键
|
||
* @param index 索引 index>=0时,0 表头，1 第二个元素,依次类推;index<0时,-1,表尾,-2倒数第二个元素，依次类推
|
||
* @return Object
|
||
* @author fzr
|
||
*/
|
||
public Object lGetIndex(String key, long index) {
|
||
key = redisPrefix + key;
|
||
return redisTemplate.opsForList().index(key, index);
|
||
}
|
||
|
||
/**
|
||
* 将list放入缓存
|
||
*
|
||
* @param key 键
|
||
* @param value 值
|
||
* @return boolean
|
||
* @author fzr
|
||
*/
|
||
public boolean lSet(String key, Object value) {
|
||
key = redisPrefix + key;
|
||
redisTemplate.opsForList().rightPush(key, value);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 将list放入缓存
|
||
*
|
||
* @param key 键
|
||
* @param value 值
|
||
* @param second 时间(秒)
|
||
* @return boolean
|
||
* @author fzr
|
||
*/
|
||
public boolean lSet(String key, Object value, long second) {
|
||
key = redisPrefix + key;
|
||
redisTemplate.opsForList().rightPush(key, value);
|
||
if (second > 0)
|
||
expire(key, second);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 将list放入缓存
|
||
*
|
||
* @param key 键
|
||
* @param value 值
|
||
* @return boolean
|
||
* @author fzr
|
||
*/
|
||
public boolean lSet(String key, List<Object> value) {
|
||
key = redisPrefix + key;
|
||
redisTemplate.opsForList().rightPushAll(key, value);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 将list放入缓存
|
||
*
|
||
* @param key 键
|
||
* @param value 值
|
||
* @param time 时间(秒)
|
||
* @return boolean
|
||
* @author fzr
|
||
*/
|
||
public boolean lSet(String key, List<Object> value, Long time) {
|
||
key = redisPrefix + key;
|
||
redisTemplate.opsForList().rightPushAll(key, value);
|
||
if (time > 0)
|
||
expire(key, time);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 根据索引修改list中的某条数据
|
||
*
|
||
* @param key 键
|
||
* @param index 索引
|
||
* @param value 值
|
||
* @return boolean
|
||
* @author fzr
|
||
*/
|
||
public boolean lUpdateIndex(String key, Long index, Object value) {
|
||
key = redisPrefix + key;
|
||
redisTemplate.opsForList().set(key, index, value);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 移除N个值为value
|
||
*
|
||
* @param key 键
|
||
* @param count 移除多少个
|
||
* @param value 值
|
||
* @return 移除的个数
|
||
* @author fzr
|
||
*/
|
||
public Long lRemove(String key, Long count, Object value) {
|
||
key = redisPrefix + key;
|
||
return redisTemplate.opsForList().remove(key, count, value);
|
||
}
|
||
|
||
}
|