package com.genersoft.iot.vmp.utils.redis;
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import com.google.common.collect.Lists;
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import org.springframework.data.redis.core.Cursor;
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import org.springframework.data.redis.core.RedisCallback;
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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 java.util.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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/**
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* Redis工具类
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*
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* @author swwheihei
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* @date 2020年5月6日 下午8:27:29
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*/
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@SuppressWarnings(value = {"rawtypes", "unchecked"})
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public class RedisUtil {
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/**
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* 模糊查询
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*
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* @param query 查询参数
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* @return
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*/
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public static List<Object> scan(RedisTemplate redisTemplate, String query) {
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Set<String> resultKeys = (Set<String>) redisTemplate.execute((RedisCallback<Set<String>>) connection -> {
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ScanOptions scanOptions = ScanOptions.scanOptions().match("*" + query + "*").count(1000).build();
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Cursor<byte[]> scan = connection.scan(scanOptions);
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Set<String> keys = new HashSet<>();
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while (scan.hasNext()) {
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byte[] next = scan.next();
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keys.add(new String(next));
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}
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return keys;
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});
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return Lists.newArrayList(resultKeys);
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}
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}
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