quartz-scheduler

问题 I wish to send an email in a scheduled timeline (once in a week) from my MVC website. The code is working perfectly fine on the scheduled time when running through Visual Studio locally. However, not getting triggered after deployment to the server. It starts working when I hit the website once after deployment,as the Applciaiton_Start event gets fired where I trigger the Quartz engine. Is there a way by which I can trigger the engine without visiting the website even once. Does Quartz always

问题 Is it possible to configure Quartz through a mixture of properties held in a config file (either quartz.properties or app.config / web.config) and also some via the StdSchedulerFactory constructor? I would like to pass the AdoJobStore connectionstring via the constructor, as it is dynamic depending on the environment, but the rest of the settings are static so would be better placed in a config file. I've tried passing in only the quartz.dataSource.myDS.connectionString property via the

问题 I have spring boot application with it's application.properties file. The project has a dependency on third-party library, in my case its: <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz</artifactId> <version>2.3.0</version> </dependency> The library has its quartz.properties file with configs. I would like to override some values, e.g.: org.quartz.threadPool.threadCount:10 to have another number of threads. How can I do it using my own properties file and/or

问题 I have recently used Quartz scheduler for running some background processes (eg. report generation) that involves database access. Now, this background tasks runs in separate threads. However, the database access in done in a central point in my application, and something like System.err.println("CURRENT THREAD: "+ Thread.currentThread().getName()); prints "main", before executing the actual query. Therefore, i am thinking that the database read is done by the UI thread ("main" thread). This

问题 What is the difference between Quartz Scheduler and Default Threads in Java ? 回答1: Quartz Scheduler is a complex solution for problems related to scheduling. It makes use of the core Java technologies to provide additional and more convenient functionalities. Consider it as a higher level framework with higher level of abstraction than the Thread concept. 来源： https://stackoverflow.com/questions/11819981/what-is-the-difference-between-quartz-scheduler-and-normal-java-threads

问题 I want to trigger the second to last day of week of the month. Typically, here is the last friday of the month (ex : 30/06/2017) 0 0 0 ? * FRIL And I want the second to last (ex : 23/06/2017) 0 0 0 ? * FRIL-1 But this syntax return the same result as before (with the Quartz scheduler and with cronmaker) The second to last day of week of the month can appear either the 3rd or the 4th week of the month. So it's : either : 0 0 0 ? * FRI#3 or : 0 0 0 ? * FRI#4 Do you have any advice ? 回答1: I don

问题 I'm working with Quartz scheduler, and attempting to close all jobs on shutdown of the app. I have one specialty job that does a 'Hold' or 'Busy-wait', basically until it gets a condition it sits there waiting patiently. This job is new, due to a new integration point. The app is run as a service using Topshelf, and whenever we try to shutdown the service to upgrade it, now that this job is running, we have to end up restarting the server to get it to shutdown. Anyhow, here it gets weird, I

问题 I am trying to setup a cron job in my Grails web application using the Quartz plugin. I am currently simply trying to get a test job to execute once every second using the following code: class TestJob { private int counter = 0 static triggers = { simple repeatInterval: 1000 } def execute() { // execute job counter += 1 System.out.println("Testing the cron " + counter) } } However, when I run the application I only see the initial output of the first execute() call twice: once immediately

问题 I'm trying to set up a job such that it runs once the first time my scheduler is started, then once at midnight every day after that. Here is my XML for the job and triggers. The once a day trigger works, but the one-time trigger does not. <job> <name>MyJob</name> <group>MyJobGroup</group> <job-type>MyScheduledJob, MyJobAssembly</job-type> <description>My job, yo</description> <durable>true</durable> <recover>false</recover> </job> <trigger> <cron> <name>MyTrigger</name> <group>MyTriggerGroup

问题 Is there any standard way (or substitute to Open Session [EntityManager] in View ) for usage of classes that depend on Lazy Initialization (fetch = FetchType.LAZY) of entities in following two use-cases: In the JUnit test cases In quartz jobs For both the above scenarios OSIV pattern will not work as no web request enters the system. How to get Lazy Loading work in such situations? PS: Spring's OpenEntityManagerInViewFilter and OpenEntityManagerInViewInterceptor are both web request oriented.