与 数据库 db 相关操作有两种：
1.从DB中读cronExpression
2.Job持久化到数据库
对于1：
Quartz 在Spring中动态设置cronExpression
参考 小刀的blog
http://www.blogjava.net/xiaodaoxiaodao/articles/103437.html
通过DB加载cronException
一个类是可以的
2个类会出问题
<bean id="test2" class="cn.edu.hust.mes.service.quartz.Test">
<property name="scheduler" ref="schedulerFactoryBean"/>
</bean>
<bean id="test" class="Test">
<property name="scheduler" ref="schedulerFactoryBean"/>
</bean>
<bean name="schedulerFactoryBean"
class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>
<ref bean="cronTriggerForPLCRead"/>
<ref bean="cronTrigger"/>
</list>
</property>
<property name="configLocation" value="classpath:quartz.properties"/>
</bean>
<bean id="test2" class="cn.edu.hust.mes.service.quartz.Test">
<property name="scheduler" ref="schedulerFactoryBean"/>
</bean>
<bean id="test" class="Test">
<property name="scheduler" ref="schedulerFactoryBean"/>
</bean>
<bean name="schedulerFactoryBean"
class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>
<ref bean="cronTriggerForPLCRead"/>
<ref bean="cronTrigger"/>
</list>
</property>
<property name="configLocation" value="classpath:quartz.properties"/>
</bean>
Caused by:
org.springframework.beans.factory.BeanCurrentlyInCreationException:
Error creating bean with name 'schedulerFactoryBean': FactoryBean which
is currently in creation returned null from getObject
如果写了拦截器的化 还会报这个错 ：
Error creating bean with name 'test2': Bean with name 'test2' has
been injected into other beans [schedulerJobDetailForPLCRead] in its
raw version as part of a circular reference, but has eventually been
wrapped (for example as part of auto-proxy creation). This means that
said other beans do not use the final version of the bean. This is
often the result of over-eager type matching - consider using
'getBeanNamesOfType' with the 'allowEagerInit' flag turned off, for
example.
对于2：
MethodInvokingJobDetailFactoryBean 不能持久化
必须用JobDetailBean 需继承QuartzJobBean 不够pojo
使用MethodInvokingJobDetailFactoryBean的化会报：
org.quartz.JobPersistenceException: Couldn't store job: Unable to
serialize JobDataMap for insertion into database because the value of
property 'methodInvoker' is not serializable:
org.springframework.scheduling.quartz.MethodInvoki
ngJobDetailFactoryBean [See nested exception:
java.io.NotSerializableException: Unable to serialize JobDataMap for
insertion into database because the value of property
API上说了
There's a note in the JavaDoc, I'd presume this might be your problem.
JobDetails created via this FactoryBean are not serializable and
thus not suitable for persistent job stores. You need to implement your
own Quartz Job as a thin wrapper for each case where you want a
persistent job to delegate to a specific service method.
http://www.springframework.org/docs/api/org/springframework/scheduling/quartz/MethodInvokingJobDetailFactoryBean.html
用MethodInvokingJobDetailFactoryBean不可持久化 除非加个thin wrapper
但查不到任何资料
但愿spring后续版本有好的方案 现在还是老老实实的用JobDetailBean吧
另：
不可用于web action action 用了session等作用域...
Caused by: java.lang.IllegalStateException: No thread-bound request
found: Are you referring to request attributes outside of an actual web
request? If you are actually operating within a web request and still
receive this message,your code is probably running outside of
DispatcherServlet/DispatcherPortlet: In this case, use
RequestContextListener or RequestContextFilter to expose the current
request.