From 191f08b7a74c461d1914652aed737888967a69f1 Mon Sep 17 00:00:00 2001
From: Junjie <fallin.jie@qq.com>
Date: 星期四, 19 十月 2023 16:51:38 +0800
Subject: [PATCH] #地图增加分布式锁
---
src/main/java/com/zy/common/utils/RedisUtil.java | 23 +++++++++++
src/main/java/com/zy/common/utils/NavigateMapData.java | 69 ++++++++++++++++++++--------------
2 files changed, 63 insertions(+), 29 deletions(-)
diff --git a/src/main/java/com/zy/common/utils/NavigateMapData.java b/src/main/java/com/zy/common/utils/NavigateMapData.java
index 9d550f2..786fc6b 100644
--- a/src/main/java/com/zy/common/utils/NavigateMapData.java
+++ b/src/main/java/com/zy/common/utils/NavigateMapData.java
@@ -241,40 +241,51 @@
*/
public boolean writeNavigateNodeToRedisMap(List<NavigateNode> nodes, boolean lock) {
RedisUtil redisUtil = SpringUtils.getBean(RedisUtil.class);
- Object o = redisUtil.get("realtimeBasMap_" + lev);
- if (o == null) {
- return false;
- }
-
- BasMap basMap = JSON.parseObject(o.toString(), BasMap.class);
- ArrayList arrayList = JSON.parseObject(basMap.getData(), ArrayList.class);
- List<List<MapNode>> lists = filterMap(NavigationMapType.NONE.id, arrayList, lev, null, null);//鑾峰彇鍏ㄩ儴鍦板浘鏁版嵁
-
- NavigateMapData mapData = new NavigateMapData(nodes.get(0).getZ());
- List<List<MapNode>> realMap = mapData.getJsonData(-1, null, null);//鑾峰彇瀹屾暣鍦板浘(鍖呮嫭鍏ュ簱鍑哄簱)
- for (NavigateNode node : nodes) {
- if (node.getZ() != lev) {
- continue;
+ try {
+ if (!redisUtil.tryLock("realtimeBasMap_" + lev)) {
+ return false;//鍔犻攣澶辫触
}
- List<MapNode> listX = lists.get(node.getX());
- MapNode mapNode = listX.get(node.getY());
- if (lock) {
- mapNode.setValue(-999);//绂佺敤搴撲綅
- }else {
- //鑾峰彇鍘熷鑺傜偣鏁版嵁
- List<MapNode> rows = realMap.get(node.getX());
- MapNode col = rows.get(node.getY());
- mapNode.setValue(col.getValue());//鎭㈠搴撲綅
+ Object o = redisUtil.get("realtimeBasMap_" + lev);
+ if (o == null) {
+ return false;
}
- listX.set(node.getY(), mapNode);
- lists.set(node.getX(), listX);
+ BasMap basMap = JSON.parseObject(o.toString(), BasMap.class);
+ ArrayList arrayList = JSON.parseObject(basMap.getData(), ArrayList.class);
+ List<List<MapNode>> lists = filterMap(NavigationMapType.NONE.id, arrayList, lev, null, null);//鑾峰彇鍏ㄩ儴鍦板浘鏁版嵁
+
+ NavigateMapData mapData = new NavigateMapData(nodes.get(0).getZ());
+ List<List<MapNode>> realMap = mapData.getJsonData(-1, null, null);//鑾峰彇瀹屾暣鍦板浘(鍖呮嫭鍏ュ簱鍑哄簱)
+ for (NavigateNode node : nodes) {
+ if (node.getZ() != lev) {
+ continue;
+ }
+
+ List<MapNode> listX = lists.get(node.getX());
+ MapNode mapNode = listX.get(node.getY());
+ if (lock) {
+ mapNode.setValue(-999);//绂佺敤搴撲綅
+ } else {
+ //鑾峰彇鍘熷鑺傜偣鏁版嵁
+ List<MapNode> rows = realMap.get(node.getX());
+ MapNode col = rows.get(node.getY());
+ mapNode.setValue(col.getValue());//鎭㈠搴撲綅
+ }
+
+ listX.set(node.getY(), mapNode);
+ lists.set(node.getX(), listX);
+ }
+ basMap.setData(JSON.toJSONString(lists));
+ basMap.setUpdateTime(new Date());
+ //灏嗘暟鎹簱鍦板浘鏁版嵁瀛樺叆redis
+ redisUtil.set("realtimeBasMap_" + lev, JSON.toJSONString(basMap));
+ } catch (Exception e) {
+ e.printStackTrace();
+ }finally {
+ //瑙ｉ攣
+ redisUtil.unlock("realtimeBasMap_" + lev);
}
- basMap.setData(JSON.toJSONString(lists));
- basMap.setUpdateTime(new Date());
- //灏嗘暟鎹簱鍦板浘鏁版嵁瀛樺叆redis
- redisUtil.set("realtimeBasMap_" + lev, JSON.toJSONString(basMap));
return true;
}
diff --git a/src/main/java/com/zy/common/utils/RedisUtil.java b/src/main/java/com/zy/common/utils/RedisUtil.java
index 95da6dc..33a9694 100644
--- a/src/main/java/com/zy/common/utils/RedisUtil.java
+++ b/src/main/java/com/zy/common/utils/RedisUtil.java
@@ -1,5 +1,6 @@
package com.zy.common.utils;
+import com.baomidou.mybatisplus.toolkit.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
@@ -25,11 +26,33 @@
@Autowired
private RedisTemplate redisTemplate;
+ @Autowired
+ private StringRedisTemplate stringRedisTemplate;
+
+ private static final String LOCK_PREFIX = "lock:";
+ private static final long DEFAULT_EXPIRE_TIME = 10; // 榛樿閿佽繃鏈熸椂闂达紝鍗曚綅涓哄垎閽�
+
public RedisUtil(RedisTemplate redisTemplate) {
this.redisTemplate = redisTemplate;
}
/**
+ * Redis鍔犻攣鐨勬搷浣�
+ */
+ public Boolean tryLock(String key) {
+ String redisKey = LOCK_PREFIX + key;
+ return redisTemplate.opsForValue().setIfAbsent(redisKey, "locked", DEFAULT_EXPIRE_TIME, TimeUnit.MINUTES);
+ }
+
+ /**
+ * Redis瑙ｉ攣鐨勬搷浣�
+ */
+ public void unlock(String lockKey) {
+ String redisKey = LOCK_PREFIX + lockKey;
+ redisTemplate.delete(redisKey);
+ }
+
+ /**
* 鎸囧畾缂撳瓨澶辨晥鏃堕棿
*
* @param key 閿�
--
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