quartz框架之spring整合

转载 于 2017-12-23 21:45:25 发布 · 204 阅读 · 0
文章标签：

#spring #quartz #框架

本文详细介绍如何将Quartz调度器与Spring框架进行整合。包括搭建Maven项目、配置依赖、创建XML配置文件、编写定时任务和服务等步骤，并提供两种解决Spring Bean注入问题的方法。

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**quartz框架之spring整合**

1.创建maven工程

2.导入jar包（pom.xml）

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<dependencies>
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
            <version>2.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz-jobs</artifactId>
            <version>2.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.12</version>
        </dependency>
 
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.1.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>4.1.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.1.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>4.1.7.RELEASE</version>
        </dependency>
  </dependencies>
  <build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>tomcat-maven-plugin</artifactId>
                <version>1.1</version>
                <configuration>
                    <port>9003</port>
                </configuration>
            </plugin>
        </plugins>
    </build>

3.创建xml文件

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<?xml version= "1.0" encoding= "UTF-8" ?>
<web-app xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"
     xmlns= "http://java.sun.com/xml/ns/javaee"
     xsi:schemaLocation= "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
     id= "WebApp_ID" version= "2.5" >
     <! -- spring配置文件位置 -->
     <context-param>
         <param- name >contextConfigLocation</param- name >
         <param-value>classpath:applicationContext.xml</param-value>
     </context-param>
     <! -- spring核心监听器 -->
     <listener>
         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
     </listener>
     <welcome-file-list>
         <welcome-file> index .html</welcome-file>
         <welcome-file> index .htm</welcome-file>
         <welcome-file> index .jsp</welcome-file>
         <welcome-file> default .html</welcome-file>
         <welcome-file> default .htm</welcome-file>
         <welcome-file> default .jsp</welcome-file>
     </welcome-file-list>
</web-app>

4.创建applicationContext.xml文件

 

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<?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"
     xsi:schemaLocation= "
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd " >
     
     <context:component-scan base-package= "com.baidu" />
     
     <! -- job -->
     <bean id= "helloJob"
         class= "org.springframework.scheduling.quartz.JobDetailFactoryBean" >　　　　　　　　　　<! --不能使用ref-->
          <property name = "jobClass" value= "com.baidu.quartz.HelloJob" />
     </bean>
     
     <! -- trigger -->
     <bean id= "simpleTrigger"
         class= "org.springframework.scheduling.quartz.SimpleTriggerFactoryBean" >
         <property name = "jobDetail" ref= "helloJob" />
         <! -- 3秒后第一次执行 -->
         <property name = "startDelay" value= "3000" />
         <! -- 5秒后重复执行 -->
         <property name = "repeatInterval" value= "5000" />
     </bean>
     
     <! -- scheduler  -->
     <bean class= "org.springframework.scheduling.quartz.SchedulerFactoryBean" >
         <property name = "triggers" >
             <list>
                 <ref bean= "simpleTrigger" />
             </list>
         </property>
     </bean>
     
</beans>

5.编写代码

 

创建一个service

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@Component
public class HelloService {
     public void sayHello(){
         System. out .println( "say hello" );
     }
}　

 

方法一：

创建helloJob

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@Component
public class HelloJob implements Job {
     @Autowired
     private HelloService helloService;
     public void execute (JobExecutionContext context)
             throws JobExecutionException {
         SpringBeanAutowiringSupport.processInjectionBasedOnCurrentContext(this);
         helloService.sayHello();
         System. out .println( "test01" );
     }
}

　　方法二：

创建一个JobFactory类

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@Component
public class JobFactory extends AdaptableJobFactory{
     @Autowired
     private AutowireCapableBeanFactory autowireCapableBeanFactory;
     @Override
     protected Object createJobInstance(TriggerFiredBundle bundle)
             throws Exception {
         Object jobInstance = super.createJobInstance(bundle);
         autowireCapableBeanFactory.autowireBean(jobInstance);
         return jobInstance;
     }
}

　　修改applicationContext.xml文件

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<! -- scheduler  -->
     <bean class= "org.springframework.scheduling.quartz.SchedulerFactoryBean" >
     　　　　<property name = "jobFactory" ref= "jobFactory" ></property>
         <property name = "triggers" >
             <list>
                 <ref bean= "simpleTrigger" />
             </list>
         </property>
     </bean>

　　

　产生空指针异常

产生的原因：    

quartz交给spring管理时，底层对于jobclass的管理并没有交给spring，这样在使用spring管理时会产生连个对象，

 

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