Spring Batch-配置 - 芒果文档

📌 相关文章

📜 Spring Batch-配置

📅 最后修改于: 2020-11-11 06:49:26 🧑 作者: Mango

在编写Spring Batch应用程序时，我们将使用Spring Batch名称空间中提供的XML标签配置作业，步骤，JobLauncher，JobRepository，事务管理器，读取器和写入器。因此，您需要在XML文件中包含此命名空间，如下所示。

在以下各节中，我们将讨论Spring Batch名称空间中可用的各种标签，它们的属性和示例。

工作

该标签用于定义/配置SpringBatch的工作。它包含一组步骤，可以使用JobLauncher启动。

此标签具有2个属性，如下所示-

S.No	Attribute & Description
1	Id It is the Id of the job, it is mandatory to specify value to this attribute.
2	restartable This is the attribute which is used to specify whether the job is restartable or not. This attribute is optional.

S.No

Attribute & Description

It is the Id of the job, it is mandatory to specify value to this attribute.

restartable

This is the attribute which is used to specify whether the job is restartable or not. This attribute is optional.

以下是SpringBatch作业的XML配置。

 
   . . . . . . . .  
   . . . . . . . .  
   . . . . . . . . // Step definitions

步

该标签用于定义/配置SpringBatch作业的步骤。它具有以下三个属性-

S.No	Attribute & Description
1	Id It is the Id of the job, it is mandatory to specify value to this attribute.
2	next It is the shortcut to specify the next step.
3	parent It is used to specify the name of the parent bean from which the configuration should inherit.

S.No

Attribute & Description

It is the Id of the job, it is mandatory to specify value to this attribute.

next

It is the shortcut to specify the next step.

parent

It is used to specify the name of the parent bean from which the configuration should inherit.

以下是SpringBatch步骤的XML配置。

块

此标记用于定义/配置tasklet的一部分。它具有以下四个属性-

S.No	Attribute & Description
1	reader It represents the name of the item reader bean. It accepts the value of the type org.springframework.batch.item.ItemReader.
2	writer It represents the name of the item reader bean. It accepts the value of the type org.springframework.batch.item.ItemWriter.
3	processor It represents the name of the item reader bean. It accepts the value of the type org.springframework.batch.item.ItemProcessor.
4	commit-interval It is used to specify the number of items to be processed before committing the transaction.

以下是SpringBatch的块的XML配置。

JobRepository

JobRepository Bean用于使用关系数据库配置JobRepository。该bean与org.springframework.batch.core.repository.JobRepository类型的类相关联。

S.No	Attribute & Description
1	dataSource It is used to specify the bean name which defines the datasource.
2	transactionManager It is used specify the name of the bean which defines the transactionmanager.
3	databaseType It specifies the type of the relational database used in the job repository.

S.No

Attribute & Description

dataSource

It is used to specify the bean name which defines the datasource.

transactionManager

It is used specify the name of the bean which defines the transactionmanager.

databaseType

It specifies the type of the relational database used in the job repository.

以下是JobRepository的示例配置。

JobLauncher

JobLauncher bean用于配置JobLauncher。它与org.springframework.batch.core.launch.support.SimpleJobLauncher类关联(在我们的程序中)。该bean具有一个名为jobrepository的属性，用于指定定义jobrepository的bean的名称。

以下是jobLauncher的示例配置。

交易管理器

TransactionManager bean用于使用关系数据库来配置TransactionManager。该bean与org.springframework.transaction.platform.TransactionManager类型的类相关联。

数据源

数据源bean用于配置数据源。该bean与org.springframework.jdbc.datasource.DriverManagerDataSource类型的类相关联。

S.No	Attribute & Description
1	driverClassName This specifies the class name of the driver used to connect with the database.
2	url This specifies the URL of the database.
3	username This specifies the username to connect with the database.
4	password This specifies the password to connect with the database.

以下是数据源的示例配置。