spring-batch

问题 Is there a way to pass a stream while launching the job through job Launcher, something similar to passing jobParameters? I have a separate service for getting file and then I want to initiate the batch job to load it. Code scenario : Consider this sample. Here job is defined but actual launcher resides in the dependency underneath. So consider in sample, I add a controller which read user's input file and then trigger the sample-job defined in sample which is run by joblauncher.run of

问题 I am getting java.lang.IllegalArgumentException: At least one JPA metamodel must be present! error while trying to run a simple Spring Batch application. Relevant code & configuration:- pom.xml:- <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-batch</artifactId> <version>1.2.3.RELEASE</version> </dependency> Java configuration:- /** * @author Kumar Sambhav Jain */ @Configuration @EnableBatchProcessing @PropertySources({ @PropertySource("file:${baseDir}

问题 Considering a Spring Boot CommandLineRunner Application, I would like to know how to filter the "switch" options passed to Spring Boot as externalized configuration. For example, with: @Component public class FileProcessingCommandLine implements CommandLineRunner { @Override public void run(String... strings) throws Exception { for (String filename: strings) { File file = new File(filename); service.doSomething(file); } } } I can call java -jar myJar.jar /tmp/file1 /tmp/file2 and the service

问题 I’m investigating the use of spring batch to process records from an encoded zipped file. The records are variable length with nested variable length data fields encoded within them. I’m new to Spring and Spring Batch, this is how I plan to structure the batch configuration. The ItemReader would need to read a single record from the zipped (*.gz) file input stream into a POJO (byte array), the length of this record would be contained in the first two bytes of the stream. The ItemProcessor

问题 I'm trying to configure spring batch inside spring boot project and I want to use it without data source. I've found that ResourcelessTransactionManager is the way to go but I cannot make it work. Problem is I already have 3 another dataSources defined, but I don't want to use any of them in springBatch. I've checked default implementation DefaultBatchConfigurer and if it is not able to find dataSource it will do exactly what I want. Problem is I've 3 of them and dont want to use any. Please

问题 firstly, thanks for attention,in my spring batch project defined many jobs , for example: <batch:job id="helloWorldJob1" job-repository="jobRepository"> <batch:step id="step1" > <batch:tasklet> <batch:chunk reader="itemReader1" writer="itemWriter1" processor="itemProcessor1"> </batch:chunk> </batch:tasklet> </batch:step> </batch:job> <batch:job id="helloWorldJob2" job-repository="jobRepository"> <batch:step id="step1" > <batch:tasklet> <batch:chunk reader="itemReader2" writer="itemWriter2"

问题 I've created: https://jira.spring.io/browse/BATCH-2778 I am developing Spring Batch + Redis (Spring Data Redis) example. In this example, I'm reading student.csv file and storing all the data as is in Redis DB. I wanted to used dateOfBirth as Date and I am sure that I need to do some date logic conversion to store value Date in Redis . As per my analysis, it looks like I wont be able to use @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd") , because I am not dealing with

问题 I am using spring boot and spring batch. For meta table i want to use mysql and for all business thing i want to use db2 as a database.When i implemented getting error. application.properties spring.datasource.url = jdbc:mysql://localhost:3306/local spring.datasource.username = root spring.datasource.password = root spring.jpa.show-sql = true spring.jpa.hibernate.ddl-auto = update spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect spring.seconddatasource.url=jdbc

问题 In a Spring Batch Job I am writing the item to target file (using FlatFileItemWriter) and updating input record "process indicator" field as "processed"/"failed" (using JdbcBatchItemWriter). Which is the best way to make this happen in a "item transaction" ? Using a CompositeItemWriter (delegates FlatFileItemWriter for writing to file and JdbcBatchItemWriter to update the "process indicator" Using ItemWriteListener methods "afterWrite" and "onWriteError" to update the "process indicator" 回答1:

问题 I'm using Spring Batch to set up a job that will process a potentially very large XML file. I think I've set it up appropriately, but at runtime I'm finding that the job runs, processes its input, and then just hangs in an executing state (I can confirm by viewing the JobExecution's status in the JobRepository). I've read through the Batch documentation several times but I don't see any obvious "make the job stop when out of input" configuration that I'm missing. Here's the relevant portion