Spring Batch Framework - Auto create Batch Table

Question

I just created a batch job using Spring Batch framework, but I don\'t have Database privileges to run CREATE SQL. When I try to run the batch job I hit the error while the f

Answer 1

Spring Batch uses the database to save metadata for its recover/retry functionality.

If you can't create tables in the database then you have to disable this behaviour

If you can create the batch metadata tables but not in runtime then you might create them manually

Answer 2

To enable auto create spring batch data-schema simply add this line to your spring application.properties file :

spring.batch.initialize-schema=always

To understand more about Spring batch meta-data schema :

https://docs.spring.io/spring-batch/trunk/reference/html/metaDataSchema.html

Answer 3

With Spring Boot 2.0 you probably need this: https://docs.spring.io/spring-boot/docs/2.0.0.M7/reference/htmlsingle/#howto-initialize-a-spring-batch-database

spring.batch.initialize-schema=always

By default it will only create the tables if you are using an embedded database.

Or

 spring.batch.initialize-schema=never

To permanently disable it.

Answer 4

<jdbc:initialize-database/> tag is parsed by Spring using InitializeDatabaseBeanDefinitionParser. You can try debugging this class in your IDE to make sure what values are being picked up for enabled attribute. Also this value can be disabled by using JVM parameter -Dspring.batch.initializer.enabled=false

Answer 5

Spring Batch required following tables to run job

• BATCH_JOB_EXECUTION
• BATCH_JOB_EXECUTION_CONTEXT
• BATCH_JOB_EXECUTION_PARAMS
• BATCH_JOB_EXECUTION_SEQ
• BATCH_JOB_INSTANCE
• BATCH_JOB_SEQ
• BATCH_STEP_EXECUTION
• BATCH_STEP_EXECUTION_CONTEXT
• BATCH_STEP_EXECUTION_SEQ

If you are using h2 db then it will create all required table by default

• spring.h2.console.enabled=true
• spring.datasource.url=jdbc:h2:mem:testdb
• spring.datasource.driverClassName=org.h2.Driver
• spring.datasource.username=sa
• spring.datasource.password=
• spring.jpa.database-platform=org.hibernate.dialect.H2Dialect

When you start using Mysql or any other database you need to add follwing properties into application.properties

               spring.batch.initialize-schema=always

Answer 6

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
        http://www.springframework.org/schema/jdbc 
        http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd">


    <!-- database -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:3306/springbatch" />
        <property name="username" value="root" />
        <property name="password" value="" />
    </bean>

    <!-- transaction manager -->
    <bean id="transactionManager" class="org.springframework.batch.support.transaction.ResourcelessTransactionManager" />

    <!-- create job-meta tables automatically -->
    <jdbc:initialize-database data-source="dataSource">
        <jdbc:script location="org/springframework/batch/core/schema-drop-mysql.sql" />
        <jdbc:script location="org/springframework/batch/core/schema-mysql.sql" />
    </jdbc:initialize-database>
</beans>

And make sure you are using compatible spring-jdbc -version with spring-batch. Most probably spring-jdbc-3.2.2.RELEASE.JAR compatible.