Spring Batch尝试再次创建持久性批处理作业存储库

这似乎是一个愚蠢的问题。我正在尝试为Spring Batch Job Repository(Spring Batch 2.1.7)配置一个Oracle10g数据库，我能够使用在org/springframework/batch/core/schema-oracle10g.sql核心中可用的脚本创建表。我还将属性batch.data.source.init设置为false。

在干净的数据库上，我的批处理程序运行良好，成功创建了所有批处理表/序列，并在批处理结果中填充了批处理表/序列。但是，当我再次运行它时，Spring Batch尝试再次创建这些表并抛出“ORA-00955:名称已被现有对象使用”异常。我究竟做错了什么？

# For Oracle
batch.jdbc.driver=oracle.jdbc.driver.OracleDriver
batch.jdbc.url=jdbc:oracle:thin:@localhost:1521:orcl
batch.jdbc.user=****
batch.jdbc.password=****
batch.schema=****
batch.schema.script=classpath:/org/springframework/batch/core/schema-oracle10g.sql
batch.drop.script=classpath:/org/springframework/batch/core/schema-drop-oracle10g.sql
batch.jdbc.testWhileIdle=true
batch.data.source.init=false

以下是我的上下文文件:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:batch="http://www.springframework.org/schema/batch"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xsi:schemaLocation="
        http://www.springframework.org/schema/batch http://www.springframework.org/schema/batch/spring-batch-2.1.xsd
        http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <context:property-placeholder location="classpath:batch.properties" />

    <context:component-scan base-package="com.myco.mypack" />

    <jdbc:initialize-database data-source="dataSource">
        <jdbc:script location="${batch.schema.script}" />
    </jdbc:initialize-database>

    <import resource="classpath:/META-INF/spring/module-context.xml" />

    <bean id="jobLauncher" class="org.springframework.batch.core.launch.support.SimpleJobLauncher">
        <property name="jobRepository" ref="jobRepository"/>
    </bean>

    <bean id="transactionManager"  class="org.springframework.jdbc.datasource.DataSourceTransactionManager" lazy-init="true">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <bean id="jobRepository" class="org.springframework.batch.core.repository.support.JobRepositoryFactoryBean">
         <property name="dataSource" ref="dataSource" />
         <property name="transactionManager" ref="transactionManager"/>
         <property name="databaseType" value="oracle" />
         <property name="tablePrefix" value="BATCH_"/>
         <property name="isolationLevelForCreate" value="ISOLATION_DEFAULT"/>
    </bean>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="${batch.jdbc.driver}" />
        <property name="url" value="${batch.jdbc.url}" />
        <property name="username" value="${batch.jdbc.user}" />
        <property name="password" value="${batch.jdbc.password}" />
    </bean>
</beans>

最佳答案

我看不到像这样使用 batch.data.source.init :

<jdbc:initialize-database data-source="dataSource"
                          enabled="${batch.data.source.init}">
    <jdbc:script location="${batch.schema.script}" />
</jdbc:initialize-database>

关于Spring Batch尝试再次创建持久性批处理作业存储库，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/10024845/