From b726dc97538b7d4ba71fd06c14161017dd67c2b7 Mon Sep 17 00:00:00 2001
From: xubinbin <1323875150@qq.com>
Date: 星期三, 10 五月 2023 15:38:22 +0800
Subject: [PATCH] "@schedule"是Spring框架提供的一种定时任务执行机制，默认情况下它是单线程执行，项目中多次使用fixedRate按指定频率执行任务(不管前面任务是否已经完成)，在同时执行多个定时任务时可能会出现阻塞和性能问题，为了解决这种单线程瓶颈问题，将定时任务的执行机制改为支持多线程
---
src/main/java/com/genersoft/iot/vmp/gb28181/transmit/callback/DeferredResultHolder.java | 32 +++++++++++++++++---------------
1 files changed, 17 insertions(+), 15 deletions(-)
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/callback/DeferredResultHolder.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/callback/DeferredResultHolder.java
index 3d5c294..a351445 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/callback/DeferredResultHolder.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/callback/DeferredResultHolder.java
@@ -1,6 +1,5 @@
package com.genersoft.iot.vmp.gb28181.transmit.callback;
-import com.alibaba.fastjson2.JSON;
import com.genersoft.iot.vmp.vmanager.bean.DeferredResultEx;
import org.springframework.stereotype.Component;
import org.springframework.util.ObjectUtils;
@@ -130,23 +129,26 @@
if (deferredResultMap == null) {
return;
}
- Set<String> ids = deferredResultMap.keySet();
- for (String id : ids) {
- DeferredResultEx result = deferredResultMap.get(id);
- if (result == null) {
+ synchronized (this) {
+ deferredResultMap = map.get(msg.getKey());
+ if (deferredResultMap == null) {
return;
}
- if (result.getFilter() != null) {
- Object handler = result.getFilter().handler(msg.getData());
- System.out.println(JSON.toJSONString(handler));
- result.getDeferredResult().setResult(handler);
- }else {
- result.getDeferredResult().setResult(msg.getData());
+ Set<String> ids = deferredResultMap.keySet();
+ for (String id : ids) {
+ DeferredResultEx result = deferredResultMap.get(id);
+ if (result == null) {
+ return;
+ }
+ if (result.getFilter() != null) {
+ Object handler = result.getFilter().handler(msg.getData());
+ result.getDeferredResult().setResult(handler);
+ }else {
+ result.getDeferredResult().setResult(msg.getData());
+ }
+
}
-
+ map.remove(msg.getKey());
}
- map.remove(msg.getKey());
}
-
-
}
--
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