如何在數據庫中保存工作信息（參數，狀態......）？

Question

我正在使用spring批處理從文件讀取數據並將數據寫入數據庫。 它工作正常，但我想將作業的信息（參數，狀態...）保存在「dataSourceBatch」數據庫中。

我的批處理文件：

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:batch="http://www.springframework.org/schema/batch" 
xmlns:task="http://www.springframework.org/schema/task" 
xmlns:p="http://www.springframework.org/schema/p" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:mvc="http://www.springframework.org/schema/mvc" 

xsi:schemaLocation=" 
    http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
    http://www.springframework.org/schema/batch 
    http://www.springframework.org/schema/batch/spring-batch-2.0.xsd 
    http://www.springframework.org/schema/task 
    http://www.springframework.org/schema/task/spring-task-3.0.xsd 
    http://www.springframework.org/schema/mvc 
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
    http://www.springframework.org/schema/batch 
    http://www.springframework.org/schema/batch/spring-batch-2.0.xsd 
    "> 

<bean id="dataSourceBatch" 
    class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
    <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 
    <property name="url" 
     value="jdbc:mysql://localhost:3306/batchdb?characterEncoding=UTF-8" /> 
    <property name="username" value="user" /> 
    <property name="password" value="pass" /> 
</bean> 


<bean id="myWriter" class="org.jobs.MyWriter" /> 
<bean id="myReader" class="org.jobs.myReader" /> 

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" 
    p:ignoreUnresolvablePlaceholders="true" /> 

<bean 
    id="transactionManager" 
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager" 
    p:dataSource-ref="dataSourceBatch" /> 
<!-- 
<bean id="transactionManager" 
    class="org.springframework.batch.support.transaction.ResourcelessTransactionManager"/> 
--> 

<bean id="jobLauncher" 
    class="org.springframework.batch.core.launch.support.SimpleJobLauncher" 
    p:jobRepository-ref="jobRepository" /> 

<bean 
    class="org.springframework.batch.core.configuration.support.JobRegistryBeanPostProcessor" 
    p:jobRegistry-ref="jobRegistry" /> 

<!-- 
<batch:job-repository id="jobRepository" data-source="dataSourceBatch" 
    transaction-manager="transactionManager" isolation-level-for-create="SERIALIZABLE" 
    table-prefix="BATCH_" /> 
--> 
<bean 
    id="jobRepository" 
    class="org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean" 
    p:transactionManager-ref="transactionManager" /> 

<bean 
    id="jobRegistry" 
    class="org.springframework.batch.core.configuration.support.MapJobRegistry" /> 



<bean 
    class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" 
    p:ignoreUnresolvablePlaceholders="true" /> 


<batch:job id="insertToDBJob" job-repository="jobRepository"> 
    <batch:step id="insertToDBStep"> 
     <batch:tasklet 
     transaction-manager="transactionManager"> 
      <batch:chunk 
      reader="myReader" 
      writer="myWriter" 
      commit-interval="2" /> 
     </batch:tasklet> 
     <batch:end on="COMPLETED" /> 
    </batch:step> 
</batch:job> 

在我的搜索，我發現：

<batch:job-repository id="jobRepository" data-source="dataSourceBatch" 
    transaction-manager="transactionManager" isolation-level-for-create="SERIALIZABLE" 
    table-prefix="BATCH_" /> 

但是，通過使用這個 「jobRepository」 我得到這個異常：

org.springframework.dao.DuplicateKeyException: PreparedStatementCallback; SQL [INSERT into BATCH_JOB_INSTANCE(JOB_INSTANCE_ID, JOB_NAME, JOB_KEY, VERSION) values (?, ?, ?, ?)]; Duplicate entry '0' for key 'PRIMARY'; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry '0' for key 'PRIMARY' 
at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:241) 
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72) 
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:602) 
at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:811) 
at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:867) 
at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:871) 
at org.springframework.batch.core.repository.dao.JdbcJobInstanceDao.createJobInstance(JdbcJobInstanceDao.java:117) 
at org.springframework.batch.core.repository.support.SimpleJobRepository.createJobExecution(SimpleJobRepository.java:127) 

我正在疏導喬b相驗證碼：

ClassPathXmlApplicationContext classPathXmlApplicationContext = new ClassPathXmlApplicationContext("batch.xml"); 
classPathXmlApplicationContext.start(); 
// launch the job 
JobLauncher jobLauncher = (JobLauncher)classPathXmlApplicationContext.getBean("jobLauncher"); 
Job job = (Job)classPathXmlApplicationContext.getBean(jobName); 
JobParametersBuilder jobParametersBuilder = new JobParametersBuilder().addDate("date", new Date()); 
id++; 
jobParametersBuilder.addLong("id", id); 
jobLauncher.run(job, jobParametersBuilder.toJobParameters()); 

感謝提前:)

Answer 1

我刪除了數據庫，並建立了一遍，現在工程:)

是的，這是簡單的

如何創建數據庫：http://www.javabeat.net/articles/272-the-spring-batch-infrastructure-1.html