quartz實現定時任務

時間 2019-11-09

原文原文鏈接

定時任務，可讓程序在指定時間，自動完成一些事情java

parent pom.xmlweb

      <!-- 定義依賴版本號 -->
    <properties>
        <quartz.version>2.2.1</quartz.version>
        <spring.version>4.2.4.RELEASE</spring.version>
    </properties>
    
    <dependencyManagement>
        <dependencies>
            <!-- spring -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-web</artifactId>
                <version>${spring.version}</version>
            </dependency>
            
            <!-- quartz依賴 -->
            <dependency>
                <groupId>org.quartz-scheduler</groupId>
                <artifactId>quartz</artifactId>
                <version>${quartz.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!-- 配置spring-jdbc,工程就正常,我也不知道是爲何 -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>${spring.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
  
  <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <!-- 資源文件拷貝插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.7</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <!-- java編譯插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.2</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
        <pluginManagement>
            <plugins>
                <!-- 配置Tomcat插件 -->
                <plugin>
                    <groupId>org.apache.tomcat.maven</groupId>
                    <artifactId>tomcat7-maven-plugin</artifactId>
                    <version>2.2</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>

module pom.xml(war工程)spring

    <!-- 配置依賴 -->
    <dependencies>
        <!-- spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>
        
        <!-- quartz依賴 -->
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
        </dependency>
        <!-- 配置spring-jdbc,工程就正常,我也不知道是爲何 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

定時任務類apache

@Component
public class QuartzDemo {

    /**
     * 定時任務
     */
    public void execute() {
        System.out.println("ִ定時任務quartz已經調用:" + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));

    }
}

applicationContext-quartz.xmlspring-mvc

dubbo等有些約束在這個demo中用不上,根據需求選擇tomcat

<?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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
        
        <!-- 包掃描 -->
        <context:component-scan base-package="com.lam.quartz"></context:component-scan>
        
        <!-- 配置定時任務詳情,jobDetail -->
        <bean id="jobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
            <!-- 定時調度實例 -->
            <!-- 包掃描注入bean -->
            <property name="targetObject" ref="quartzDemo"></property>
            <!-- 定時調度方法 -->
            <property name="targetMethod" value="execute"></property>
        </bean>
        
        <!-- 配置觸發器 trigger -->
        <bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
            <property name="name" value="work_default_name"/>
              <property name="group" value="work_default"/>
              <!-- 定時任務詳情 -->
              <property name="jobDetail" ref="jobDetail"></property>
              <!-- 定時規則:每5秒觸發一次 -->
            <property name="cronExpression" value="0/5 * * * * ?"></property>
        </bean>
        
        <!-- 配置scheduler工廠 -->
        <bean id="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
            <!-- 配置觸發器列表 -->
            <property name="triggers">
                <list>
                    <ref bean="cronTrigger"/>
                </list>
            </property>
        </bean>
</beans>

web.xmlmvc

  <!-- 加載spring容器 -->
  <context-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring/applicationContext-quartz.xml</param-value>
  </context-param>
  <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

啓動工程便可看到控制檯每5秒輸出一次提示信息app

END!maven