有人遇到过这种奇怪的问题吗？关于Spring集成quartz并持久化方面的问题。

Question

spring配置文件中的配置如下（截取片段）：

<bean id="Scheduler" lazy-init="false" autowire="no"
    class="org.springframework.scheduling.quartz.SchedulerFactoryBean" >
</bean>





<bean id="addJob" class="com.dhcc.scheduler.action.AddAction">
<property name="scheduler">
<ref local="Scheduler"/>
</property>
</bean>

AddAction的定义如下：

package com.dhcc.scheduler.action;

import org.springframework.scheduling.quartz.CronTriggerBean;
import org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean;
import org.springframework.scheduling.quartz.SchedulerFactoryBean;

import com.opensymphony.xwork2.ActionSupport;

public class AddAction extends ActionSupport {
// 添加新任务的操作对象
private SchedulerFactoryBean scheduler;
private MethodInvokingJobDetailFactoryBean jobdetail;
private CronTriggerBean cron;

@Override
public String execute() throws Exception {
    return super.execute();
}

public SchedulerFactoryBean getScheduler() {
    return scheduler;
}

public void setScheduler(SchedulerFactoryBean scheduler) {
    this.scheduler = scheduler;
}

public MethodInvokingJobDetailFactoryBean getJobdetail() {
    return jobdetail;
}

public void setJobdetail(MethodInvokingJobDetailFactoryBean jobdetail) {
    this.jobdetail = jobdetail;
}

public CronTriggerBean getCron() {
    return cron;
}

public void setCron(CronTriggerBean cron) {
    this.cron = cron;
}

}

但是部署到tomcat却保这样一个错误：（如此奇怪的错误。。。）

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'addJob' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler'; nested exception is java.lang.IllegalArgumentException: Cannot convert value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler': no matching editors or conversion strategy found
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:480)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: org.springframework.beans.TypeMismatchException: Failed to convert property value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler'; nested exception is java.lang.IllegalArgumentException: Cannot convert value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler': no matching editors or conversion strategy found
at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:391)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1289)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1250)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
... 38 more
Caused by: java.lang.IllegalArgumentException: Cannot convert value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler': no matching editors or conversion strategy found
at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:231)
at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:138)
at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:386)
... 42 more
2009-7-9 15:41:12 org.apache.catalina.core.StandardContext listenerStart
严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'addJob' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler'; nested exception is java.lang.IllegalArgumentException: Cannot convert value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler': no matching editors or conversion strategy found
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:480)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: org.springframework.beans.TypeMismatchException: Failed to convert property value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler'; nested exception is java.lang.IllegalArgumentException: Cannot convert value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler': no matching editors or conversion strategy found
at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:391)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1289)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1250)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
... 38 more
Caused by: java.lang.IllegalArgumentException: Cannot convert value of type [org.quartz.impl.StdScheduler] to required type [org.springframework.scheduling.quartz.SchedulerFactoryBean] for property 'scheduler': no matching editors or conversion strategy found
at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:231)
at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:138)
at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:386)
... 42 more

然而我根本没有使用org.quartz.impl.StdScheduler这个类，为什么会报类型错误呢》》》？？哪位大哥见多识广的，解救一下。
[b]问题补充：[/b]
谢谢各位大哥们的回答，，问题解决方式我知道，我想搞清楚的是，spring配置文件加载时，里面的bean是怎么加载的，具体发生了什么，是容器自动调用了其构造方法呢，还是init方法，抑或是其他。。。这个方面了解的还不深入，还望哪位大哥指点。。。正如我上面程序一样，为什么工厂类加载后，将其注入给其他对象时，类型就变了呢》》》？？？

Answer 1

你没搞明白这个bean
class="org.springframework.scheduling.quartz.Scheduler[color=red]FactoryBean[/color]" >

它是一个工厂bean，得到的不是它本身，而是它负责创建的org.quartz.impl.StdScheduler对象

这里要修改下
public class AddAction extends ActionSupport {
// 添加新任务的操作对象
private StdScheduler scheduler;
private MethodInvokingJobDetailFactoryBean jobdetail;
private CronTriggerBean cron;

Answer 2

工厂bean需要实现org.springframework.beans.factory.FactoryBean接口。

FactoryBean接口是插入到Spring IoC容器用来定制实例化逻辑的一个接口点。如果你有一些复杂的初始化代码用Java可以更好来表示，而不是用(可能)冗长的XML，那么你就可以创建你自己的FactoryBean，并在那个类中写入复杂的初始化动作，然后把你定制的FactoryBean插入容器中。

FactoryBean接口提供三个方法：

Object getObject()：返回一个由这个工厂创建的对象实例。这个实例可能被共享（取决于isSingleton()的返回值是singleton或prototype）。

boolean isSingleton()：如果要让这个FactoryBean创建的对象实例为singleton则返回true，否则返回false。

Class getObjectType()：返回通过getObject()方法返回的对象类型，如果该类型无法预料则返回null。
所以： class="org.springframework.scheduling.quartz.SchedulerFactoryBean" >
这样定义所得到的Scheduler实际上上一个Quartz的Scheduler对象，而不是一个SchedulerFactoryBean对象；所以出现类型不匹配，所以将addaction中private SchedulerFactoryBean scheduler修改为Scheduler，问题解决；

Answer 3

我想搞清楚的是，spring配置文件加载时，里面的bean是怎么加载的，具体发生了什么，是容器自动调用了其构造方法呢，还是init方法，抑或是其他。。。这个方面了解的还不深入，还望哪位大哥指点。。。正如我上面程序一样，为什么工厂类加载后，将其注入给其他对象时，类型就变了呢》》》？？？

————————

对于你想搞清楚的这些问题，去找本spring的书籍看看，一切都明白了，

网上也很多免费电子书啊，这是spring最核心技术的原理

Answer 4

我的建议就是你先去好好看看spring的这部分内容，这是很基础的要理解spring的技术，不是几句话说得清楚，看资料啊，朋友