From 220da5159c5ce32f9096e02316b4c9019b09dba7 Mon Sep 17 00:00:00 2001
From: fhx <308050795@qq.com>
Date: 星期一, 06 十一月 2023 17:27:15 +0800
Subject: [PATCH] 1.新增工具类
---
src/main/java/com/hx/redis/RedisUtil.java | 68 +++++++++++++++++++++++++++++++++
1 files changed, 67 insertions(+), 1 deletions(-)
diff --git a/src/main/java/com/hx/redis/RedisUtil.java b/src/main/java/com/hx/redis/RedisUtil.java
index 1fabfae..d9b582b 100644
--- a/src/main/java/com/hx/redis/RedisUtil.java
+++ b/src/main/java/com/hx/redis/RedisUtil.java
@@ -1,9 +1,11 @@
package com.hx.redis;
+import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
import javax.annotation.Resource;
+import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
@@ -22,6 +24,18 @@
@Resource
private RedisTemplate<String, Object> redisTemplate;
+ /**
+ * 鍒囨崲鏁版嵁搴�
+ * @param dataNumber 鏁版嵁搴撶紪鍙�
+ */
+ public void setDataBase(int dataNumber) {
+ LettuceConnectionFactory connectionFactory = (LettuceConnectionFactory) redisTemplate.getConnectionFactory();
+ if (connectionFactory != null && dataNumber != connectionFactory.getDatabase()) {
+ connectionFactory.setDatabase(dataNumber);
+ this.redisTemplate.setConnectionFactory(connectionFactory);
+ connectionFactory.resetConnection();
+ }
+ }
/**
* [鍒ゆ柇key鏄惁瀛樺湪]
@@ -125,6 +139,26 @@
}
+ }
+
+ /**
+ * 璁剧疆鍒版湡鏃堕棿
+ * @param key 瀵瑰簲閿�
+ * @param time 鏃堕暱
+ * @param timeUnit 鏃堕棿鍗曚綅
+ * @return
+ */
+ public boolean expire(String key, long time, TimeUnit timeUnit) {
+ try {
+ if (time > 0) {
+ return redisTemplate.expire(key, time, timeUnit);
+ }
+ } catch (Exception e) {
+ e.printStackTrace();
+ return false;
+
+ }
+ return false;
}
@@ -298,7 +332,7 @@
}
/**
- * list 鑾峰彇
+ * list 鑾峰彇绱㈠紩涓嬬殑鍊�
*
* @param key 閿�
* @param index 绱㈠紩
@@ -307,6 +341,23 @@
public Object listGet(String key, long index) {
try {
return redisTemplate.opsForList().index(key,index);
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+
+ /**
+ * list 鑾峰彇绱㈠紩涓嬬殑鍊�
+ *
+ * @param key 閿�
+ * @param start 寮�濮嬩綅缃� 0鏄紑濮嬩綅缃�
+ * @param end 缁撴潫浣嶇疆,-1杩斿洖鎵�鏈�
+ * @return true鎴愬姛 false 澶辫触
+ */
+ public List<Object> listGetRange(String key, long start , long end) {
+ try {
+ return redisTemplate.opsForList().range(key, start, end);
} catch (Exception e) {
e.printStackTrace();
return null;
@@ -345,4 +396,19 @@
}
}
+ /**
+ * @param key 閿�
+ * @param value 鍊�
+ * @param timeOut 鏃堕棿
+ * @param unit 鏃堕棿鍗曚綅
+ */
+ public Boolean setIfAbsent(String key, Object value, long timeOut, TimeUnit unit) {
+ try {
+ return redisTemplate.opsForValue().setIfAbsent(key, value, timeOut, unit);
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+
}
--
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