spring定時任務.線程池,自定義多線程配置

本文轉載自查看原文 2018-10-10 15:45 671 通用實踐/ 調度/ 高並發/ 開發經驗/ 性能優化/ java經驗集錦/ 多線程/ 工作總結/ Spring

定時任務及多線程配置xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.0.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
       "> 
    <!--  job start-->
<span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> 定時 </span><span style="color: #008000;">--&gt;</span>
<span style="color: #0000ff;">&lt;</span><span style="color: #800000;">bean </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="ruleBean"</span><span style="color: #ff0000;">
    class</span><span style="color: #0000ff;">="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean"</span><span style="color: #0000ff;">&gt;</span>
    <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="targetObject"</span><span style="color: #ff0000;"> ref</span><span style="color: #0000ff;">="ruleService"</span> <span style="color: #0000ff;">/&gt;</span>
    <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="targetMethod"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="updateRule"</span> <span style="color: #0000ff;">/&gt;</span>
     
 <span style="color: #0000ff;">&lt;/</span><span style="color: #800000;">bean</span><span style="color: #0000ff;">&gt;</span> 

<span style="color: #0000ff;">&lt;</span><span style="color: #800000;">bean </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="rule"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="org.springframework.scheduling.quartz.CronTriggerFactoryBean"</span><span style="color: #0000ff;">&gt;</span>
    <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="jobDetail"</span><span style="color: #ff0000;"> ref</span><span style="color: #0000ff;">="ruleBean"</span> <span style="color: #0000ff;">/&gt;</span>
    <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> 每天凌晨一點執行 </span><span style="color: #008000;">--&gt;</span>
    <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="cronExpression"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="0 0 1 * * ?"</span><span style="color: #0000ff;">/&gt;</span>
<span style="color: #0000ff;">&lt;/</span><span style="color: #800000;">bean</span><span style="color: #0000ff;">&gt;</span>

<span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> 定時 end </span><span style="color: #008000;">--&gt;</span>

<span style="color: #0000ff;">&lt;</span><span style="color: #800000;">bean </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="startQuertz"</span><span style="color: #ff0000;"> lazy-init</span><span style="color: #0000ff;">="false"</span><span style="color: #ff0000;"> autowire</span><span style="color: #0000ff;">="no"</span><span style="color: #ff0000;">
    class</span><span style="color: #0000ff;">="org.springframework.scheduling.quartz.SchedulerFactoryBean"</span><span style="color: #0000ff;">&gt;</span>
     <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="jobDetails"</span><span style="color: #0000ff;">&gt;</span>
      <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">list</span><span style="color: #0000ff;">&gt;</span>
        <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">ref </span><span style="color: #ff0000;">bean</span><span style="color: #0000ff;">="ruleBean"</span> <span style="color: #0000ff;">/&gt;</span>
      <span style="color: #0000ff;">&lt;/</span><span style="color: #800000;">list</span><span style="color: #0000ff;">&gt;</span>
    <span style="color: #0000ff;">&lt;/</span><span style="color: #800000;">property</span><span style="color: #0000ff;">&gt;</span>

    <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="triggers"</span><span style="color: #0000ff;">&gt;</span>
      <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">list</span><span style="color: #0000ff;">&gt;</span>
         <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">ref </span><span style="color: #ff0000;">bean</span><span style="color: #0000ff;">="rule"</span> <span style="color: #0000ff;">/&gt;</span>
      <span style="color: #0000ff;">&lt;/</span><span style="color: #800000;">list</span><span style="color: #0000ff;">&gt;</span>
    <span style="color: #0000ff;">&lt;/</span><span style="color: #800000;">property</span><span style="color: #0000ff;">&gt;</span>
    <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> 啟動時延期10秒開始任務 </span><span style="color: #008000;">--&gt;</span>
    <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="startupDelay"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="10"</span> <span style="color: #0000ff;">/&gt;</span>
<span style="color: #0000ff;">&lt;/</span><span style="color: #800000;">bean</span><span style="color: #0000ff;">&gt;</span>

<span style="color: #008000;">&lt;!--</span><span style="color: #008000;">  job end</span><span style="color: #008000;">--&gt;</span>

<span style="color: #0000ff;">&lt;</span><span style="color: #800000;">bean </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="threadPoolTaskExecutor"</span><span style="color: #ff0000;">
  class</span><span style="color: #0000ff;">="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor"</span><span style="color: #0000ff;">&gt;</span>
  <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> 核心線程數，默認為1 </span><span style="color: #008000;">--&gt;</span>
  <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="corePoolSize"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="1"</span> <span style="color: #0000ff;">/&gt;</span>

  <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> 最大線程數，默認為Integer.MAX_VALUE </span><span style="color: #008000;">--&gt;</span>
  <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="maxPoolSize"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="10"</span> <span style="color: #0000ff;">/&gt;</span>

  <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> 隊列最大長度，一般需要設置值&gt;=notifyScheduledMainExecutor.maxNum；默認為Integer.MAX_VALUE
      &lt;property name="queueCapacity" value="1000" /&gt; </span><span style="color: #008000;">--&gt;</span>

  <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> 線程池維護線程所允許的空閑時間，默認為60s </span><span style="color: #008000;">--&gt;</span>
  <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="keepAliveSeconds"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="300"</span> <span style="color: #0000ff;">/&gt;</span>

  <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> 線程池對拒絕任務（無線程可用）的處理策略，目前只支持AbortPolicy、CallerRunsPolicy；默認為后者 </span><span style="color: #008000;">--&gt;</span>
  <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="rejectedExecutionHandler"</span><span style="color: #0000ff;">&gt;</span>
      <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> AbortPolicy:直接拋出java.util.concurrent.RejectedExecutionException異常 </span><span style="color: #008000;">--&gt;</span>
      <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> CallerRunsPolicy:主線程直接執行該任務，執行完之后嘗試添加下一個任務到線程池中，可以有效降低向線程池內添加任務的速度 </span><span style="color: #008000;">--&gt;</span>
      <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> DiscardOldestPolicy:拋棄舊的任務、暫不支持；會導致被丟棄的任務無法再次被執行 </span><span style="color: #008000;">--&gt;</span>
      <span style="color: #008000;">&lt;!--</span><span style="color: #008000;"> DiscardPolicy:拋棄當前任務、暫不支持；會導致被丟棄的任務無法再次被執行 </span><span style="color: #008000;">--&gt;</span>
      <span style="color: #0000ff;">&lt;</span><span style="color: #800000;">bean </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy"</span> <span style="color: #0000ff;">/&gt;</span>
  <span style="color: #0000ff;">&lt;/</span><span style="color: #800000;">property</span><span style="color: #0000ff;">&gt;</span>
<span style="color: #0000ff;">&lt;/</span><span style="color: #800000;">bean</span><span style="color: #0000ff;">&gt;</span>

<span style="color: #0000ff;">&lt;</span><span style="color: #800000;">bean </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="contextUtil"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="com.mythopoet.util.ContextUtil"</span><span style="color: #0000ff;">&gt;&lt;/</span><span style="color: #800000;">bean</span><span style="color: #0000ff;">&gt;</span>

</beans>

定時任務JAVA類

RuleService.java

@Service
public class RuleService {
    public void updateRule(){
  System.out.println(</span>"定時任務啟動"<span style="color: #000000;">);

}

}

多線程配置

StartTaskThread.java

public class StartTaskThread implements Runnable {
     private List<String> list;
</span><span style="color: #0000ff;">public</span> StartTaskThread(List&lt;String&gt;<span style="color: #000000;"> list) {
   </span><span style="color: #0000ff;">this</span>.list=<span style="color: #000000;"> list;
}
@Override
</span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">synchronized</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> run() {
       System.out.println(list.size());
}

}

修改定時任務類，分配數據，並發布到各個線程里。

RuleService.java

@Service
public class RuleService {
</span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> updateRule(){</span></pre>

        int nums = 5;//開啟5線程
        List<String> strList= new ArrayList<String>();
        for (int i = 0; i < 2000; i++) {
            strList.add("test"+i);
        }
        Map<Integer, List<String>> map = new HashMap<Integer, List<String>>();
        for (int i = 0; i < nums; i++) {
            List<String> list = new ArrayList<String>();
            map.put(i, list);
        }
        int st = 0; //起點
        int avg = strList.size()/nums; //平均值
        int count =0;//記錄值
        
        for (int i = 0; i < nums; i++) {
            if(i==nums-1){
                for (int j = count; j <strList.size(); j++) {
                    map.get(i).add(strList.get(j));
                    count++;
                }
                new Thread(new StartTaskThread(map.get(i)).start();
                break;
            }
            for (int j = st; j <(st+avg); j++) {
                map.get(i).add(strList.get(j));
                count++;
            }
            st=st+avg;
            new Thread(new StartTaskThread(map.get(i)).start();
 } }

取線程配置工具類,如果線程內需要操作DAO 則需要主動獲取spring注入的DAO類的Bean

ContextUtil.java

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
public class ContextUtil implements ApplicationContextAware{
</span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">static</span><span style="color: #000000;"> ApplicationContext context;

@Override
</span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> setApplicationContext(ApplicationContext applicationContext)
        </span><span style="color: #0000ff;">throws</span><span style="color: #000000;"> BeansException {
    context </span>=<span style="color: #000000;"> applicationContext;
}

</span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span><span style="color: #000000;"> ApplicationContext getContext(){
    </span><span style="color: #0000ff;">return</span><span style="color: #000000;"> context;
}

</span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span><span style="color: #000000;"> Object getBean(String beanName) {
    </span><span style="color: #0000ff;">return</span><span style="color: #000000;"> context.getBean(beanName);
}

}

獲取dao寫法

RuleDAO ruleDAO =(RuleDAO) ContextUtil.getBean("ruleDAO");

使用線程池

StartTaskThread2.java

public class StartTaskThread implements Runnable {
     private String st; public StartTaskThread(String<span> st) {
   this.st=<span> st;
}
@Override
public void<span> run() {
       System.out.println(st);
}
 }

線程池

RuleService2.java

@Service
public class RuleService { public void<span> updateRule(){<br><br></span></span></span>        ThreadPoolTaskExecutor tpte =(ThreadPoolTaskExecutor)ContextUtil.getBean("threadPoolTaskExecutor");</pre>
         List<String> strList= new ArrayList<String>(); for (int i = 0; i < 2000; i++) { strList.add("test"+i); }
 
         for (int i = 0; i < strList.size(); i++) {
            tpte.execute(new StartTaskThread2(strList.get(i)));
        }
 }

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猜您在找 spring定時任務.線程池,自定義多線程配置 SpringBoot—自定義線程池及並發定時任務模板 Spring定時任務多線程 spring多線程與定時任務 SpringBoot 線程池配置定時任務，異步任務 SpringBoot 線程池配置定時任務，異步任務 Spring中的線程池和定時任務功能同步異步定時任務 Spring線程池 spring的Scheduled（定時任務）和多線程 Spring Schedule定時任務多線程執行任務配置