Spring的XML配置的bean调用注解方式的bean

末蓝、 2022-08-20 03:16 207阅读 0赞

最近在研究spring的定时器quartz，定时器的使用没什么问题，但是现在我有一个需求，就是监控数据库中某个表中数据变化，采用mybatis，访问数据库的时候，Service层采用注解形式，而定时器相关的bean采用XML配置。因此，就会遇到Spring的XML配置的bean调用注解方式的bean问题。

第一次的时候，我讲quartz的配置文件与spring的配置文件分开存放，运行程序后，总是显示Job类中注入的Service对象为空，上网查询原因，有些人说quartz自己管自己的bean，没有放在spring容器中，因此没法注入，于是我想到一个死办法，就是讲quartz的配置放到spring配置文件中，试过之后，就可以访问。

<?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-4.1.xsd
    			http://www.springframework.org/schema/context
    			http://www.springframework.org/schema/context/spring-context-4.1.xsd">
    
    	
    	<context:property-placeholder location="classpath:config.properties" />
    
    	
    	<context:component-scan base-package="com.ly.bs.service" />
    	
    	<context:component-scan base-package="com.ly.bs.redis" />
    	<context:component-scan base-package="com.ly.bs.job"/>
    	
    	<context:annotation-config />
    	
    	<bean id="dwrService" class="com.ly.bs.controller.AjaxController"/>  
    	
    	<bean id="quartzJob" class="com.ly.bs.job.TestJob">
               
    	</bean>
            
            <bean id="myJobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
                
                <property name="targetObject">
                    <ref bean="quartzJob"/>
                </property>
                
                <property name="targetMethod">
                    <value>send</value>
                </property>
            </bean>
    	 
    	
    
    	
    	
    	<bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
    		<property name="jobDetail" ref="myJobDetail" />
    		
    		<property name="cronExpression" value="0/15 * * * * ?" />
    	</bean>
    	
    	
    	
    	
    	
    	
    	<bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
    	    <property name="triggers">
    	        <list>
    	            <ref bean="cronTrigger" />
    	          
    	        </list>
    	    </property>
    	</bean>
    
    </beans>

package com.ly.bs.job;
    
    import org.springframework.beans.factory.annotation.Autowired;
    
    import com.ly.bs.service.UserDataService;
    
    public class TestJob {
    	 
    	 @Autowired
    	 private UserDataService userDataService;
    	 
    	 public void send() {
             System.out.println("我的一个任务测试。helloWord!");
             if(userDataService!=null){
            	 System.out.println(userDataService.selectUserDataById(1));
             }
    	 }
    }

package com.ly.bs.service.impl;
    
    import java.util.List;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.cache.annotation.Cacheable;
    import org.springframework.stereotype.Service;
    
    import com.ly.bs.bean.Page;
    import com.ly.bs.dao.UserDataMapper;
    import com.ly.bs.entities.UserData;
    import com.ly.bs.service.UserDataService;
    
    @Service("userDataService")
    public class UserDataServiceImpl implements UserDataService{
    	
    	@Autowired
    	private UserDataMapper userDataMapper;
    	
    	Logger log=LoggerFactory.getLogger(UserDataServiceImpl.class);
    	
    	public int insert(UserData userData) {
    		// TODO Auto-generated method stub
    		return userDataMapper.insert(userData);
    	}
    	
    	//@Cacheable("selectUserDataById")
    	public UserData selectUserDataById(int id) {
    		// TODO Auto-generated method stub
    		log.debug("selectUserDataById:"+id);
    		return userDataMapper.selectUserDataById(id);
    	}
    
    	public List<UserData> selectAllUserData() {
    		// TODO Auto-generated method stub
    		return userDataMapper.selectAllUserData();
    	}
    
    	public int update(UserData userData) {
    		// TODO Auto-generated method stub
    		return userDataMapper.update(userData);
    	}
    
    	public int deleteUserDataById(int id) {
    		// TODO Auto-generated method stub
    		return userDataMapper.deleteUserDataById(id);
    	}
    
    	@Override
    	public List<UserData> selectByPage(Page page) {
    		log.info("page:"+page);
    		return userDataMapper.selectByPage(page);
    	}
    	
    	
    }