java 调用Quartz 不同版本使用分析 1.6x 、1.7x、1.8x

秒速五厘米 2022-07-28 11:53 436阅读 0赞

## 对比分析 quartz1.6x、1.7x、1.8x 使用配置 ##

quartz调用框架1.6x、1.7x、1.8x 使用时，所需配置却不同，今天拿出来分别对比分析一下。

副标题【论版本管理的重要性】  
今天整理项目发现项目在本地运行不执行相应job，经过各种查发现quartz 的不同版本的配置文件还不一样。quartz所用到的配置文件共计3个主要的，分别是：quartz.properties、quartz\_jobs.xml 以及在web.xml 文件设置的servlet 。  
今天版本配置的不同就是针对前两个配置文件。

## 首先分析1.6.4 ##

（老项目没经过maven管理，项目用的拷贝jar包的方式，项目本身用到的quartz的jar 版本是：quartz-all-1.6.4.jar ）  
第一步：quartz.properties  
“\`  
org.quartz.scheduler.instanceName = TestScheduler  
org.quartz.scheduler.instanceId = one  
org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool  
org.quartz.threadPool.threadCount = 2  
org.quartz.threadPool.threadPriority = 4  
org.quartz.plugin.jobInitializer.class = org.quartz.plugins.xml.JobInitializationPlugin  
org.quartz.plugin.jobInitializer.\*\*fileName=\*\*quartz\_jobs.xml  
org.quartz.plugin.jobInitializer.overWriteExistingJobs = false  
org.quartz.plugin.jobInitializer.failOnFileNotFound = true  
org.quartz.plugin.shutdownhook.class = org.quartz.plugins.management.ShutdownHookPlugin  
org.quartz.plugin.shutdownhook.cleanShutdown = true

注意上文中的  fileName，这个仅在1.6.4中可以使用，到了其他版本就不一定叫做这个名字了，下文中也会提到，并做标注字体加粗。
    
        第二步：quartz_jobs.xml
        ```
    <?xml version='1.0' encoding='utf-8'?>
    <quartz>
           <job>
            <job-detail>
                <name>cnlive</name>
                <group>cnlive_job</group>
                <job-class>
                    test.quartz.quartz1.App
                </job-class>
            </job-detail>
            <trigger>
                <cron>
                    <name>cron_job</name>
                    <group>cron_job</group>
                    <job-name>job1</job-name>
                    <job-group>job1</job-group>
                    <cron-expression>*/2 * * * * ?</cron-expression>
                </cron>
            </trigger>
        </job>
    </quartz>

## 分析1.7, 1.7.x和1.6 的区别 ##

仅仅是 fileName 不同,**由fileName改为了 fileNames**，如下：  
第一步：对比quartz.properties

org.quartz.scheduler.instanceName = TestScheduler  
org.quartz.scheduler.instanceId = one  
org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool  
org.quartz.threadPool.threadCount = 2  
org.quartz.threadPool.threadPriority = 4  
org.quartz.plugin.jobInitializer.class = org.quartz.plugins.xml.JobInitializationPlugin  
org.quartz.plugin.jobInitializer.**fileNames**=quartz\_jobs.xml  
org.quartz.plugin.jobInitializer.overWriteExistingJobs = false  
org.quartz.plugin.jobInitializer.failOnFileNotFound = true  
org.quartz.plugin.shutdownhook.class = org.quartz.plugins.management.ShutdownHookPlugin  
org.quartz.plugin.shutdownhook.cleanShutdown = true

第二步：对比quartz\_jobs.xml

<?xml version='1.0' encoding='utf-8'?>
    <quartz>
           <job>
            <job-detail>
                <name>cnlive</name>
                <group>cnlive_job</group>
                <job-class>
                    test.quartz.quartz1.App
                </job-class>
            </job-detail>
            <trigger>
                <cron>
                    <name>cron_job</name>
                    <group>cron_job</group>
                    <job-name>job1</job-name>
                    <job-group>job1</job-group>
                    <cron-expression>*/2 * * * * ?</cron-expression>
                </cron>
            </trigger>
        </job>
    </quartz>

由此可看出1.6.x和 1.7.x 在quartz\_jobs.xml 文件配置上是没有任何区别的可以通用。

## 分析1.8.x 和 1.6.、1.7 的对比 ##

可以说从1.8开始quartz进行了比较大的改动，quartz_jobs.xml  和 quartz.properties 的配置和之前版本都有很大不同。

老样子第一步：quartz.properties

org.quartz.scheduler.instanceName = TestScheduler  
org.quartz.scheduler.instanceId = one  
org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool  
org.quartz.threadPool.threadCount = 2  
org.quartz.threadPool.threadPriority = 4  
org.quartz.plugin.jobInitializer.class = **org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin**  
org.quartz.plugin.jobInitializer.**fileNames=quartz\_jobs.xml**  
org.quartz.plugin.jobInitializer.failOnFileNotFound = true  
org.quartz.plugin.shutdownhook.class = org.quartz.plugins.management.ShutdownHookPlugin  
org.quartz.plugin.shutdownhook.cleanShutdown = true

第二步：quartz\_job.xml, 配置也和之前的版本不同。

<?xml version="1.0" encoding="UTF-8"?>
    <job-scheduling-data xmlns="http://www.quartz-scheduler.org/xml/JobSchedulingData" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.quartz-scheduler.org/xml/JobSchedulingData http://www.quartz-scheduler.org/xml/job_scheduling_data_1_8.xsd" version="1.8">
        <schedule>
            <job>
                <name>DemoJob</name>
                <group>JobGroup</group>
                <job-class>test.quartz.quartz2.App</job-class>
            </job>
            <trigger>
                <cron>
                    <name>DemoTrigger</name>
                    <group>triggerGroup</group>
                    <job-name>DemoJob</job-name>
                    <job-group>JobGroup</job-group>
                    <cron-expression>0/2 * * * * ?</cron-expression>
                </cron>
            </trigger>
        </schedule>
    </job-scheduling-data>

为了证实以上结论，我们看一下 jar包内的类是否确实如此：  
![这里写图片描述][20160415174725220]

我们可以看到1.8开始确实有很大改动。

如果你开发过程中遇到了如下异常，毫无疑问是你的版本问题，请检查你用的jar包的版本和对应是配置文件吧。

异常举例：

信息: QuartzInitializer: Quartz Scheduler failed to initialize: org.quartz.SchedulerException: SchedulerPlugin class ‘org.quartz.plugins.xml.JobInitializationPlugin’ could not be instantiated. \[See nested exception: java.lang.ClassNotFoundException: org.quartz.plugins.xml.JobInitializationPlugin\]  
四月 15, 2016 4:46:00 下午 org.apache.catalina.core.StandardContext loadOnStartup  
严重: Servlet \[QuartzInitializer\] in web application \[/quartz2\] threw load() exception  
java.lang.ClassNotFoundException: org.quartz.plugins.xml.JobInitializationPlugin  
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)  
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)  
at org.quartz.simpl.InitThreadContextClassLoadHelper.loadClass(InitThreadContextClassLoadHelper.java:72)  
at org.quartz.simpl.CascadingClassLoadHelper.loadClass(CascadingClassLoadHelper.java:114)  
at org.quartz.impl.StdSchedulerFactory.instantiate(StdSchedulerFactory.java:1007)  
at org.quartz.impl.StdSchedulerFactory.getScheduler(StdSchedulerFactory.java:1432)  
at org.quartz.ee.servlet.QuartzInitializerServlet.init(QuartzInitializerServlet.java:190)  
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)  
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)  
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)  
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5266)  
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5554)  
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)  
at org.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1575)atorg.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1565)  
at java.util.concurrent.FutureTask.run(FutureTask.java:262)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
at java.lang.Thread.run(Thread.java:745)

--------------------

java.lang.NoSuchMethodException: No setter for property ‘overWriteExistingJobs’  
at org.quartz.impl.StdSchedulerFactory.setBeanProps(StdSchedulerFactory.java:1320)  
at org.quartz.impl.StdSchedulerFactory.instantiate(StdSchedulerFactory.java:1016)  
at org.quartz.impl.StdSchedulerFactory.getScheduler(StdSchedulerFactory.java:1432)  
at org.quartz.ee.servlet.QuartzInitializerServlet.init(QuartzInitializerServlet.java:190)  
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)  
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)  
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)  
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5266)  
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5554)  
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)  
at org.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1575)atorg.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1565)  
at java.util.concurrent.FutureTask.run(FutureTask.java:262)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
at java.lang.Thread.run(Thread.java:745)

--------------------

严重: Servlet \[QuartzInitializer\] in web application \[/quartz2\] threw load() exception  
java.lang.NoSuchMethodException: No setter for property ‘fileName’  
at org.quartz.impl.StdSchedulerFactory.setBeanProps(StdSchedulerFactory.java:1320)  
at org.quartz.impl.StdSchedulerFactory.instantiate(StdSchedulerFactory.java:1016)  
at org.quartz.impl.StdSchedulerFactory.getScheduler(StdSchedulerFactory.java:1432)  
at org.quartz.ee.servlet.QuartzInitializerServlet.init(QuartzInitializerServlet.java:190)  
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)  
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)  
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)  
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5266)  
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5554)  
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)  
at org.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1575)atorg.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1565)  
at java.util.concurrent.FutureTask.run(FutureTask.java:262)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
at java.lang.Thread.run(Thread.java:745)

总计，开发是个细心和耐心的过程，一不留神就容易看见红色（异常）

[20160415174725220]: /images/20220724/c4efb0c37a9e434da4aca5010a999056.png