基于 Spring Cloud 、Spring Boot、 OAuth2 的 RBAC 权限管理系统

package com.pig4cloud.pig.common.core.util; import cn.hutool.core.convert.Convert; import lombok.experimental.UtilityClass; import org.springframework.data.redis.connection.RedisConnection; import org.springframework.data.redis.connection.RedisConnectionFactory; import org.springframework.data.redis.core.*; import org.springframework.data.redis.core.script.DefaultRedisScript; import org.springframework.data.redis.core.script.RedisScript; import java.util.*; import java.util.concurrent.TimeUnit; /** * 缓存工具类 * * @author XX * @date 2023/05/12 */ @UtilityClass public class RedisUtils { private static final Long SUCCESS = 1L; /** * 指定缓存失效时间 * @param key 键 * @param time 时间(秒) */ public boolean expire(String key, long time) { RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); Optional.ofNullable(redisTemplate) .filter(template -> time > 0) .ifPresent(template -> template.expire(key, time, TimeUnit.SECONDS)); return true; } /** * 根据 key 获取过期时间 * @param key 键 不能为null * @return 时间(秒) 返回0代表为永久有效 */ public long getExpire(Object key) { RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); return Optional.ofNullable(redisTemplate) .map(template -> template.getExpire(key, TimeUnit.SECONDS)) .orElse(-1L); } /** * 查找匹配key * @param pattern key * @return / */ public List<String> scan(String pattern) { RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); ScanOptions options = ScanOptions.scanOptions().match(pattern).build(); return Optional.ofNullable(redisTemplate).map(template -> { RedisConnectionFactory factory = template.getConnectionFactory(); RedisConnection rc = Objects.requireNonNull(factory).getConnection(); Cursor<byte[]> cursor = rc.scan(options); List<String> result = new ArrayList<>(); while (cursor.hasNext()) { result.add(new String(cursor.next())); } RedisConnectionUtils.releaseConnection(rc, factory); return result; }).orElse(Collections.emptyList()); } /** * 分页查询 key * @param patternKey key * @param page 页码 * @param size 每页数目 * @return / */ public List<String> findKeysForPage(String patternKey, int page, int size) { RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); ScanOptions options = ScanOptions.scanOptions().match(patternKey).build(); RedisConnectionFactory factory = redisTemplate.getConnectionFactory(); RedisConnection rc = Objects.requireNonNull(factory).getConnection(); Cursor<byte[]> cursor = rc.scan(options); List<String> result = new ArrayList<>(size); int tmpIndex = 0; int fromIndex = page * size; int toIndex = page * size + size; while (cursor.hasNext()) { if (tmpIndex >= fromIndex && tmpIndex < toIndex) { result.add(new String(cursor.next())); tmpIndex++; continue; } // 获取到满足条件的数据后,就可以退出了 if (tmpIndex >= toIndex) { break; } tmpIndex++; cursor.next(); } RedisConnectionUtils.releaseConnection(rc, factory); return result; } /** * 判断key是否存在 * @param key 键 * @return true 存在 false不存在 */ public boolean hasKey(String key) { RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); return Optional.ofNullable(redisTemplate).map(template -> template.hasKey(key)).orElse(false); } /** * 删除缓存 * @param keys 可以传一个值 或多个 */ public void del(String... keys) { RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); Optional.ofNullable(keys) .map(Arrays::asList) .filter(keysList -> !keysList.isEmpty()) .ifPresent(redisTemplate::delete); } /** * 获取锁 * @param lockKey 锁key * @param value value * @param expireTime：单位-秒 * @return boolean */ public boolean getLock(String lockKey, String value, int expireTime) { RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); return Optional.ofNullable(redisTemplate) .map(template -> template.opsForValue().setIfAbsent(lockKey, value, expireTime, TimeUnit.SECONDS)) .orElse(false); } /** * 释放锁 * @param lockKey 锁key * @param value value * @return boolean */ public boolean releaseLock(String lockKey, String value) { RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); String script = "if redis.call('get', KEYS[1]) == ARGV[1] then return redis.call('del', KEYS[1]) else return 0 end"; RedisScript<Long> redisScript = new DefaultRedisScript<>(script, Long.class); return Optional.ofNullable(redisTemplate.execute(redisScript, Collections.singletonList(lockKey), value)) .map(Convert::toLong) .filter(SUCCESS::equals) .isPresent(); } // ============================String============================= /** * 普通缓存获取 * @param key 键 * @return 值 */ public <T> T get(String key) { RedisTemplate<String, T> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); return redisTemplate.opsForValue().get(key); } /** * 批量获取 * @param keys * @return */ public <T> List<T> multiGet(List<String> keys) { RedisTemplate<String, T> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); return redisTemplate.opsForValue().multiGet(keys); } /** * 普通缓存放入 * @param key 键 * @param value 值 * @return true成功 false失败 */ public boolean set(String key, Object value) { RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); Optional.ofNullable(redisTemplate).map(template -> { template.opsForValue().set(key, value); return true; }); return true; } /** * 普通缓存放入并设置时间 * @param key 键 * @param value 值 * @param time 时间(秒) time要大于0 如果time小于等于0 将设置无限期 * @return true成功 false 失败 */ public boolean set(String key, Object value, long time) { RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); return Optional.ofNullable(redisTemplate).map(template -> { if (time > 0) { template.opsForValue().set(key, value, time, TimeUnit.SECONDS); } else { template.opsForValue().set(key, value); } return true; }).orElse(false); } /** * 普通缓存放入并设置时间 * @param key 键 * @param value 值 * @param time 时间 * @param timeUnit 类型 * @return true成功 false 失败 */ public <T> boolean set(String key, T value, long time, TimeUnit timeUnit) { RedisTemplate<String, T> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); Optional.ofNullable(redisTemplate).map(template -> { if (time > 0) { template.opsForValue().set(key, value, time, timeUnit); } else { template.opsForValue().set(key, value); } return true; }); return true; } // ================================Map================================= /** * HashGet * @param key 键 不能为null * @param hashKey 项 不能为null * @return 值 */ public <HK, HV> HV hget(String key, HK hashKey) { RedisTemplate<String, HV> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); return redisTemplate.<HK, HV>opsForHash().get(key, hashKey); } /** * 获取hashKey对应的所有键值 * @param key 键 * @return 对应的多个键值 */ public <HK, HV> Map<HK, HV> hmget(String key) { RedisTemplate<String, HV> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class); return redisTemplate.<HK, HV>opsForHash().entries(key); } /** * HashSet * @param key 键 * @param map 对应多个键值 * @return true 成功 f