Spring定时任务task(Quartz) bean 无法注入

最近项目中使用到定时任务,通过Spring管理,但是在写定时任务出现 bean 无法注入问题,通过在网上查找大量资料也没要找到问题,试过网上多种方法也无效,通过与朋友多方讨论最终解决问题,现在将其分享给大家

问题是没有扫描到,只需在相应xml加上扫描即可

<context:component-scan base-package="com.***.log"/>

这是第一次写博客,希望大家多多指点

下面是我写的测试代码

web.xml

<?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">  <display-name>springmvc_001</display-name>  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>    <!-- 配置spring框架的监听器 -->    <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <!-- 使用上下文参数指定spring配置文件的位置 -->    <!-- applicationContext对象仅加载一次，服务器启动时加载，使用web中的监听器机制 -->    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>classpath:applicationContext-*.xml</param-value>    </context-param>    <!-- 配置 springmvc 前端控制器 -->    <servlet>        <servlet-name>springmvc</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        <!-- 加载 springmvc 配置文件 -->        <init-param>            <param-name>contextConfigLocation</param-name>            <param-value>classpath:springmvc.xml</param-value>        </init-param>    </servlet>    <servlet-mapping>        <servlet-name>springmvc</servlet-name>        <url-pattern>*.do</url-pattern>    </servlet-mapping></web-app>

springmvc.xml

<beans xmlns="http://www.springframework.org/schema/beans"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    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://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context.xsd"        default-autowire="byName">        <!-- 注解的映射器  配置注解适配器 使用下边mvc:annotation-driven代替 -->        <mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven>        <!-- 使用组件扫描 -->        <context:component-scan base-package="com.***.log"/>        <!-- <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">            <property name="defaultEncoding" value="UTF-8"/>        </bean> --></beans>

Service

用于bean 注入给定时任务

package com.***.***.service.impl;import org.springframework.stereotype.Service;import com.***.***.service.QuartzService;@Servicepublic class QuartzServiceImpl implements QuartzService {    @Override    public void appService() {        System.out.println(QuartzServiceImpl.class);    }}

方法一:使用spring自带定时任务

applicationContext-task.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:aop="http://www.springframework.org/schema/aop"       xmlns:tx="http://www.springframework.org/schema/tx"       xmlns:context="http://www.springframework.org/schema/context"       xmlns:task="http://www.springframework.org/schema/task"       xsi:schemaLocation="        http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans.xsd        http://www.springframework.org/schema/tx         http://www.springframework.org/schema/tx/spring-tx.xsd        http://www.springframework.org/schema/aop         http://www.springframework.org/schema/aop/spring-aop.xsd        http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context.xsd        http://www.springframework.org/schema/task         http://www.springframework.org/schema/task/spring-task.xsd">    <!-- 在这里添加包扫描即可解决 bean 无法注入问题 -->    <context:component-scan base-package="com.***.log"/>    <!-- 定时器开关 -->    <task:annotation-driven/>    <bean id="logTask" class="com.***.***.task.LogTask"/>    <task:scheduled-tasks>          <!-- 这里表示的是每隔20秒执行一次  -->         <task:scheduled ref="logTask" method="run" cron="0/20 * * * * ?"/>     </task:scheduled-tasks></beans>

定时任务

import org.springframework.beans.factory.annotation.Autowired;import com.***.***.service.QuartzService;/** * 定时任务类 * * @author XXX */@Componentpublic class LogTask {    @Autowired    private QuartzService quartzService;    public void run(){        quartzService.appService();    }}

方法二:Spring整合Quartz

这里其实和上面的基本一样 都是添加包扫描即可

applicationContext-quart.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:aop="http://www.springframework.org/schema/aop"       xmlns:tx="http://www.springframework.org/schema/tx"       xmlns:context="http://www.springframework.org/schema/context"       xmlns:task="http://www.springframework.org/schema/task"       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/tx         http://www.springframework.org/schema/tx/spring-tx.xsd        http://www.springframework.org/schema/aop         http://www.springframework.org/schema/aop/spring-aop.xsd        http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context.xsd        http://www.springframework.org/schema/task         http://www.springframework.org/schema/task/spring-task.xsd        http://www.springframework.org/schema/mvc         http://www.springframework.org/schema/mvc/spring-mvc.xsd"    >        <context:component-scan base-package="com.***.log"/>         <!-- 定义调用对象和调用对象的方法 -->        <bean id="job" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">            <property name="targetObject">                <bean class="com.***.***.task.QuartzTask"/>            </property>            <property name="targetMethod">                <value>run</value>            </property>        </bean>        <!-- 定时 触发器 -->        <bean id="beanNameAware" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">            <property name="jobDetail">                <ref bean="job"/>            </property>            <property name="cronExpression">                <value>0/20 * * * * ?</value>            </property>        </bean>        <!-- Quartz 调度器的 SchedulerFactoryBean -->        <bean id="smartLifecycle" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">            <property name="triggers">                <list>                    <ref bean="beanNameAware"/>                </list>            </property>        </bean></beans>

定时任务

package com.***.***.task;import org.springframework.beans.factory.annotation.Autowired;import com.***.***.service.QuartzService;/** * 定时任务类 * * @author XXX */@Componentpublic class QuartzTask {    @Autowired    private QuartzService quartzService;    public void run(){        quartzService.appService();    }}