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提供redis scan()

This commit is contained in:
郭向欣 2021-01-29 15:09:41 +08:00
parent 3d0f8d681e
commit 9c2b84d761
1 changed files with 47 additions and 30 deletions
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77
ruoyi-common/ruoyi-common-redis/src/main/java/com/ruoyi/common/redis/service/RedisService.java
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@ -1,24 +1,18 @@
package com.ruoyi.common.redis.service;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.BoundSetOperations;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.data.redis.core.*;
import org.springframework.stereotype.Component;
import java.io.IOException;
import java.util.*;
import java.util.concurrent.TimeUnit;
/**
* spring redis 工具类
*
*
* @author ruoyi
**/
@SuppressWarnings(value = { "unchecked", "rawtypes" })
@Component
public class RedisService
{
@ -31,7 +25,7 @@ public class RedisService
* @param key 缓存的键值
* @param value 缓存的值
*/
public <T> void setCacheObject(final String key, final T value)
public <T> void setCacheObject(String key, T value)
{
redisTemplate.opsForValue().set(key, value);
}
@ -44,7 +38,7 @@ public class RedisService
* @param timeout 时间
* @param timeUnit 时间颗粒度
*/
public <T> void setCacheObject(final String key, final T value, final Long timeout, final TimeUnit timeUnit)
public <T> void setCacheObject(String key, T value, Long timeout, TimeUnit timeUnit)
{
redisTemplate.opsForValue().set(key, value, timeout, timeUnit);
}
@ -56,7 +50,7 @@ public class RedisService
* @param timeout 超时时间
* @return true=设置成功；false=设置失败
*/
public boolean expire(final String key, final long timeout)
public boolean expire(String key, long timeout)
{
return expire(key, timeout, TimeUnit.SECONDS);
}
@ -69,7 +63,7 @@ public class RedisService
* @param unit 时间单位
* @return true=设置成功；false=设置失败
*/
public boolean expire(final String key, final long timeout, final TimeUnit unit)
public boolean expire(String key, long timeout, TimeUnit unit)
{
return redisTemplate.expire(key, timeout, unit);
}
@ -80,7 +74,7 @@ public class RedisService
* @param key 缓存键值
* @return 缓存键值对应的数据
*/
public <T> T getCacheObject(final String key)
public <T> T getCacheObject(String key)
{
ValueOperations<String, T> operation = redisTemplate.opsForValue();
return operation.get(key);
@ -91,7 +85,7 @@ public class RedisService
*
* @param key
*/
public boolean deleteObject(final String key)
public boolean deleteObject(String key)
{
return redisTemplate.delete(key);
}
@ -102,7 +96,7 @@ public class RedisService
* @param collection 多个对象
* @return
*/
public long deleteObject(final Collection collection)
public long deleteObject(Collection collection)
{
return redisTemplate.delete(collection);
}
@ -114,7 +108,7 @@ public class RedisService
* @param dataList 待缓存的List数据
* @return 缓存的对象
*/
public <T> long setCacheList(final String key, final List<T> dataList)
public <T> long setCacheList(String key, List<T> dataList)
{
Long count = redisTemplate.opsForList().rightPushAll(key, dataList);
return count == null ? 0 : count;
@ -126,7 +120,7 @@ public class RedisService
* @param key 缓存的键值
* @return 缓存键值对应的数据
*/
public <T> List<T> getCacheList(final String key)
public <T> List<T> getCacheList(String key)
{
return redisTemplate.opsForList().range(key, 0, -1);
}
@ -138,7 +132,7 @@ public class RedisService
* @param dataSet 缓存的数据
* @return 缓存数据的对象
*/
public <T> BoundSetOperations<String, T> setCacheSet(final String key, final Set<T> dataSet)
public <T> BoundSetOperations<String, T> setCacheSet(String key, Set<T> dataSet)
{
BoundSetOperations<String, T> setOperation = redisTemplate.boundSetOps(key);
Iterator<T> it = dataSet.iterator();
@ -155,7 +149,7 @@ public class RedisService
* @param key
* @return
*/
public <T> Set<T> getCacheSet(final String key)
public <T> Set<T> getCacheSet(String key)
{
return redisTemplate.opsForSet().members(key);
}
@ -166,7 +160,7 @@ public class RedisService
* @param key
* @param dataMap
*/
public <T> void setCacheMap(final String key, final Map<String, T> dataMap)
public <T> void setCacheMap(String key, Map<String, T> dataMap)
{
if (dataMap != null) {
redisTemplate.opsForHash().putAll(key, dataMap);
@ -179,7 +173,7 @@ public class RedisService
* @param key
* @return
*/
public <T> Map<String, T> getCacheMap(final String key)
public <T> Map<String, T> getCacheMap(String key)
{
return redisTemplate.opsForHash().entries(key);
}
@ -191,7 +185,7 @@ public class RedisService
* @param hKey Hash键
* @param value 值
*/
public <T> void setCacheMapValue(final String key, final String hKey, final T value)
public <T> void setCacheMapValue(String key, String hKey, T value)
{
redisTemplate.opsForHash().put(key, hKey, value);
}
@ -203,7 +197,7 @@ public class RedisService
* @param hKey Hash键
* @return Hash中的对象
*/
public <T> T getCacheMapValue(final String key, final String hKey)
public <T> T getCacheMapValue(String key, String hKey)
{
HashOperations<String, String, T> opsForHash = redisTemplate.opsForHash();
return opsForHash.get(key, hKey);
@ -216,19 +210,42 @@ public class RedisService
* @param hKeys Hash键集合
* @return Hash对象集合
*/
public <T> List<T> getMultiCacheMapValue(final String key, final Collection<Object> hKeys)
public <T> List<T> getMultiCacheMapValue(String key, Collection<Object> hKeys)
{
return redisTemplate.opsForHash().multiGet(key, hKeys);
}
/**
* 获得缓存的基本对象列表
*
*
* @param pattern 字符串前缀
* @return 对象列表
*/
public Collection<String> keys(final String pattern)
@Deprecated
public Collection<String> keys(String pattern)
{
return redisTemplate.keys(pattern);
}
/**
* 非阻塞方式模糊匹配keys
*
* @param matchKey
* @return
*/
public Set<String> scan(String matchKey) {
Set<String> keys = (Set<String>) redisTemplate.execute((RedisCallback<Set<String>>) connection -> {
Set<String> keysTmp = new HashSet<>();
Cursor<byte[]> cursor = connection.scan(new ScanOptions.ScanOptionsBuilder().match(matchKey).count(1000).build());
while (cursor.hasNext()) {
keysTmp.add(new String(cursor.next()));
}
try {
cursor.close();
} catch (IOException e) {
}
return keysTmp;
});
return keys;
}
}