spring-batch

问题 I am new to spring-batch, here i am getting some data from DB using following reader statements. Here i need to pass value dynamically(thru arguments). <bean id="ItemReader" class="org.springframework.batch.item.database.JdbcCursorItemReader"> <property name="dataSource" ref="dataSource" /> <property name="sql"> <value> <![CDATA[ select * from table where section = #{jobParameters['section']} ]]> </value> </property> <property name="rowMapper"> <bean class="xyzRowMapper" /> </property> </bean

问题 Trying to tie those two together. But that exception occurs: java.lang.NoClassDefFoundError: org/springframework/integration/MessagingException at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2615) at java.lang.Class.getDeclaredMethods(Class.java:1860) at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:571) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:490) My gradle

问题 Is there any possibility to find out, If a job is restarted in Spring Batch? We do provide some Tasklets without restart-support from spring-batch and has to implement our own proceeding, if job is restarted. Can't find any possibility in JobRepository, JobOperator, JobExplorer, etc. 回答1: Define a JobExplorer bean with required properties <bean id="jobExplorer" class="org.springframework.batch.core.explore.support.JobExplorerFactoryBean"> <property name="dataSource" ref="dataSource"/>

问题 Is there any possibility to find out, If a job is restarted in Spring Batch? We do provide some Tasklets without restart-support from spring-batch and has to implement our own proceeding, if job is restarted. Can't find any possibility in JobRepository, JobOperator, JobExplorer, etc. 回答1: Define a JobExplorer bean with required properties <bean id="jobExplorer" class="org.springframework.batch.core.explore.support.JobExplorerFactoryBean"> <property name="dataSource" ref="dataSource"/>

问题 My project has this requirement where user uploads a CSV file which has to be pushed to sql server database. I am following the below basic example to load CSV file into a sql sever database. https://github.com/michaelcgood/Spring-Batch-CSV-Example runninng this repo by making change of datasource, here we using sql server instead of in-memory db. here is the addition to POM file: <dependency> <groupId>com.microsoft.sqlserver</groupId> <<artifactId>sqljdbc4</artifactId> <version>4.0</version>

问题 The Spring Batch Integration documentation explains how to use remote chunking and partitioning for steps, see http://docs.spring.io/spring-batch/trunk/reference/html/springBatchIntegration.html#externalizing-batch-process-execution Our jobs do not consist of straightforward reader/processor/writer steps. So we want to simply have whole jobs running in parallel, with each job being farmed out to different partitions. Is there already a pattern for this in Spring Batch? Or would I need to

问题 I am using spring batch and I need to achieve the following Read a csv file which has details like date and amount Aggregate the sum of all amounts for a same date Persist one entry with date and the sum I have used batch in the past and I thought of the following approach. Create a batch with 2 steps. Step 1: Reader: Loop through the entire file using FlatFileItemReader Processor: Populate a map with Key as date and value as amount. If entry is present then get the value and add it to the

问题 I am new to Spring Batch . I was trying to shift data from CSV file to XML file & able to shift it successfully. But when each time I run the code my XML (output file) getting override which I dont want, instead I want to create new output file (old output files should be there, require for data tracking purpose) for each run. How can I do that ? Here is the my code: What I need to change in below file? Let me know if you need more file code from my side. <beans xmlns="http://www

问题 Below is a relevant portion of code for reader, processor , writer and step for batch job that I create. I have a requirement to update a flag column in table from where data is being read ( source table ) to mark that this data is being processed by this job so other apps don't pick up that data. Then once processing of read records is finished, I need to restore that column to original value so other apps can work on those records too. I guess, listener is the approach to take (

问题 I have this specifically file: H;COD;CREATION_DATE;TOT_POR;TYPE H;001;2013-10-30;20;R D;DETAIL_VALUE;PROP_VALUE D;003;3030 D;002;3031 D;005;3032 T;NUM_FOL;TOT T;1;503.45 As you can see, it has header/body/footer lines. I'm looking for a ItemReader that skip these lines. I've done this ItemReader below who identify those lines, using PatternMatchingCompositeLineMapper . <bean id="fileReader" class="org.springframework.batch.item.file.FlatFileItemReader"> <property name="resource" ref=