The Techno Journals

Spring batch is used to create and process the batch jobs. It provides various features like logging, job statistics, transaction management, restarting jobs. It is very helpful in processing of large dataset but with finite volume of data. In this tutorial we will learn how to create and execute the spring batch job. In our example we will create a job which will import all the words from a text file to database and then at last it will print the total number of words available in the database. Below is the project structure. Creating batch job Sample text file to import Below is the contents of text file which we use for importing the words. The list below gives you the 1000 most frequently used English words in alphabetical order. Once you've mastered the shorter vocabulary lists, this is the next step. It would take time to learn the entire list from scratch, but you are probably already familiar with some of these words. Feel free to copy this list into...

Here we will see how we can configure different datasource for application and batch. By default, Spring batch stores the job details and execution details in database. If separate data source is not configured for spring batch then it will use the available data source in your application if configured and create batch related tables there. Which may be the unwanted burden on application database and we would like to configure separate database for spring batch. To overcome this situation we will configure the different datasource for spring batch using in-memory database, since we don't want to store batch job details permanently. Other thing is the configuration of  spring cloud task in case of multiple datasource and it must point to the same data source which is pointed by spring batch. In below sections, we will se how to configure application, batch and cloud task related data sources. Application Data Source Define the data source in application properties or yml con...