It is a Spring Context module annotation that internally imports SchedulingConfiguration. You can achieve it by following the below steps: Let’s say you want to run a job every 5 seconds. Scheduler method can also be created using Scheduled annotation.
#Spring task scheduler how to
In this post, you’ll learn how to use the Spring annotation to configure and schedule tasks. Task scheduler methods are configured usingFor instance, you can implement scheduling to perform some task at a specific time, or repeat after a fixed interval. Can I suggest may be adding one more parameter (say your custom UUID using UUID.randomUUID().toString()), this will ensure that the two job parameters are absolutely unique and should be considered as two totally different job instances.We use scheduling to schedule jobs in a Spring Boot application. Your unique constraint related exception is actually possible - two jobs are considered the same if the parameters for both jobs match up exactly, in your case somehow the dates are clashing(there is I feel a small bug here with Spring batch because of the precision of toString method of Date) for two different job instances and hence the issue. A default simple implementation of the Job interface is provided by Spring Batch in the form of the SimpleJob class which creates some standard functionality on. Now in your context you end up having two jobs the one with id of task_scheduler and one with a id of task_scheduler2 and Spring does not know which specific one you want to wire in.Ī simple fix will be to simply remove and inject the reference in through xml this way: The reason is you probably have an annotation for Job property in your RunScheduler1. This is not a Spring batch exception, it is more of a normal Spring wiring exception. java - What is the default scheduler pool size in spring-boot - Stack Overflow What is the default scheduler pool size in spring-boot Ask Question Asked 8 years, 1 month ago Modified 2 months ago Viewed 63k times 79 I'm using spring-boot and Scheduled annotation to execute some tasks. The Scheduled annotation can be added to a method along with trigger metadata. Spring provides excellent support for both task scheduling and asynchronous method execution based on cron expression using Scheduled annotation. UPDATE: I think I'm gonna change my approach. Spring Scheduled 4 Ways to Schedule Tasks. Unique constraint "job_inst_un" Detail: Key (job_name, Values (?, ?, ?, ?)] ERROR: duplicate key value violates uniqueĬonstraint "job_inst_un" Detail: Key (job_name, job_key)=(job,Ĩa87688793625c6f3b8f982dbe6689d2) already exists. SQL [INSERT into BATCH_JOB_INSTANCE(JOB_INSTANCE_ID, JOB_NAME, JOB_KEY, VERSION) In this example, with the help of spring scheduling capability. It ran the first job then whenever it tried to run the 2nd job this exception appears: This can be done by using some cron expression which is passed to Spring TaskScheduler. What I did was something like this in the application-context.xml Now my question is it possible for spring batch to have multiple jobs? Because from what I'm seeing from my exception is that it's only expecting a single job. ("Exit Status : " + execution.getStatus())
JobParameters param = new JobParametersBuilder().addString("date", String dateParam = new Date().toString() When running I have this exception Could not autowire field: .Job .RunScheduler1.job nested exception is .NoUniqueBeanDefinitionException: No qualifying bean of type is defined: expected single matching bean but found 2: task_scheduler,task_scheduler2ītw, this is my RunScheduler1.java file job Then at my application-context.xml I defined the task scheduler I defined both jobs with the same way like this: But I am currently have separate xml for both.
JobB will do: sysout("JobB executed at "+new Date()) īoth of which can either be in a separate xml or in one xml.
JobA will do: sysout("JobA executed at "+new Date()) So I have two jobs with separate tasklets each.
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