Spring Batch in Spring MVC

by leelight · Published January 2, 2019 · Updated January 3, 2019

Today I have implemented Spring Batch in my Spring MVC project for importing data from CSV file to database. There are plenty of tutorials on the internet but I met a lot of problems during the implementation, which were not mentioned in those tutorials. I will list here all the problems.

1. Exceptions

1-1. Problem 1

You can not use your custom autowired service inside ItemProcessor.

1-1-1. Solution

Try to use your SpringContextUtils.getBean

public class SkuDataProcessor implements ItemProcessor<CustomSku, ProductSku>
{

   private static Logger logger = Logger.getLogger( SkuDataProcessor.class );

   @Override
   public ProductSku process( final CustomSku inSku ) throws Exception
   {
      SkuImportService skuImportService = (SkuImportService) SpringContextUtils.getBean( "skuImportService" );
      skuImportService.importSkuFromCSV( inSku );

public class SkuDataProcessor implements ItemProcessor<CustomSku, ProductSku>

{

private static Logger logger = Logger.getLogger( SkuDataProcessor.class );

@Override

public ProductSku process( final CustomSku inSku ) throws Exception

{

SkuImportService skuImportService = (SkuImportService) SpringContextUtils.getBean( "skuImportService" );

skuImportService.importSkuFromCSV( inSku );

@Service("skuImportService")
public class SkuImportServiceImpl implements SkuImportService
{

   private static Logger logger = Logger.getLogger( SkuImportServiceImpl.class );


   @Autowired
   private BrandService brandService;
......

@Service("skuImportService")

public class SkuImportServiceImpl implements SkuImportService

{

private static Logger logger = Logger.getLogger( SkuImportServiceImpl.class );

@Autowired

private BrandService brandService;

......

1-2. Problem 2

I have added all the data checking and importing in ItemProcessor, so I do not need to insert new record into the database(just do nothing here), so I tried to set a readable SQL in ItemWriter like this:

@Bean
   public ItemWriter<ProductSku> csvSkuWriter()
   {
      JdbcBatchItemWriter<ProductSku> writer = new JdbcBatchItemWriter<ProductSku>();
      writer.setItemSqlParameterSourceProvider( new BeanPropertyItemSqlParameterSourceProvider<ProductSku>() );
      writer.setSql( "select :id" );
      writer.setDataSource( dataSource );
      writer.afterPropertiesSet();
      return writer;
   }


@Bean
   public Step stepImport()
   {
      return stepBuilderFactory.get( "stepImport" )
         .<CustomSku, ProductSku>chunk( 50 )
         .reader( csvSkuReader() )
         .processor( skuDataProcessor() )
         .writer( csvSkuWriter() )
         .build();
   }

@Bean

public ItemWriter<ProductSku> csvSkuWriter()

{

JdbcBatchItemWriter<ProductSku> writer = new JdbcBatchItemWriter<ProductSku>();

writer.setItemSqlParameterSourceProvider( new BeanPropertyItemSqlParameterSourceProvider<ProductSku>() );

writer.setSql( "select :id" );

writer.setDataSource( dataSource );

writer.afterPropertiesSet();

return writer;

}

@Bean

public Step stepImport()

{

return stepBuilderFactory.get( "stepImport" )

.<CustomSku, ProductSku>chunk( 50 )

.reader( csvSkuReader() )

.processor( skuDataProcessor() )

.writer( csvSkuWriter() )

.build();

}

Exception:

org.springframework.dao.DataIntegrityViolationException: 
PreparedStatementCallback; SQL [select ?Can not issue executeUpdate() for SELECTs; 
nested exception is java.sql.BatchUpdateException: 
Can not issue executeUpdate() for SELECTs

org.springframework.dao.DataIntegrityViolationException:

PreparedStatementCallback; SQL [select ?Can not issue executeUpdate() for SELECTs;

nested exception is java.sql.BatchUpdateException:

Can not issue executeUpdate() for SELECTs

1-2-1. Solution:

Create a new class implement ItemWriter:

import java.util.List;

import net.mobabel.nova.model.shop.ProductSku;
import org.springframework.batch.item.ItemWriter;

public class NoOpItemWriter implements ItemWriter<ProductSku>
{

   public void write( List<? extends ProductSku> items ) throws Exception
   {
      //do nothing
   }
}

import java.util.List;

import net.mobabel.nova.model.shop.ProductSku;

import org.springframework.batch.item.ItemWriter;

public class NoOpItemWriter implements ItemWriter<ProductSku>

{

public void write( List<? extends ProductSku> items ) throws Exception

{

//do nothing

}

Then:

@Bean
   public NoOpItemWriter noOpWriter()
   {
      return new NoOpItemWriter();
   }


   @Bean
   public Step stepImport()
   {
      return stepBuilderFactory.get( "stepImport" )
         .<CustomSku, ProductSku>chunk( 50 )
         .reader( csvSkuReader() )
         .processor( skuDataProcessor() )
         .writer( noOpWriter() )
         .build();
   }

@Bean

public NoOpItemWriter noOpWriter()

{

return new NoOpItemWriter();

}

@Bean

public Step stepImport()

{

return stepBuilderFactory.get( "stepImport" )

.<CustomSku, ProductSku>chunk( 50 )

.reader( csvSkuReader() )

.processor( skuDataProcessor() )

.writer( noOpWriter() )

.build();

}

1-3. Problem 3

javax.validation.ValidationException: HV000183: 
Unable to initialize 'javax.el.ExpressionFactory'. 
Check that you have the EL dependencies on the classpath, or use ParameterMessageInterpolator instead

javax.validation.ValidationException: HV000183:

Unable to initialize 'javax.el.ExpressionFactory'.

Check that you have the EL dependencies on the classpath, or use ParameterMessageInterpolator instead

I have imported spring-batch-core in maven, but this is not enough, you need the following two libraries.

<dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-core</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.el</groupId>
            <artifactId>javax.el-api</artifactId>
        </dependency>
        <dependency>
            <groupId>org.glassfish.web</groupId>
            <artifactId>javax.el</artifactId>
        </dependency>

<groupId>org.springframework.batch</groupId>

<artifactId>spring-batch-core</artifactId>

</dependency>

<groupId>javax.el</groupId>

<artifactId>javax.el-api</artifactId>

</dependency>

<groupId>org.glassfish.web</groupId>

<artifactId>javax.el</artifactId>

</dependency>

1-4. Problem 4

org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; 
bad SQL grammar [SELECT JOB_INSTANCE_ID, JOB_NAME from BATCH_JOB_INSTANCE where JOB_NAME = ? and JOB_KEY = ?]; 
nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 
Table 'nova_classic_local_core.batch_job_instance' doesn't exist

org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback;

bad SQL grammar [SELECT JOB_INSTANCE_ID, JOB_NAME from BATCH_JOB_INSTANCE where JOB_NAME = ? and JOB_KEY = ?];

nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:

Table 'nova_classic_local_core.batch_job_instance' doesn't exist

1-4-1. Reason:

Spring Batch requires some tables in your database for job execution. But in Spring MVC those tables can not be generated automatically. In Spring Boot yes, if you enable spring.batch.initialize-schema=ALWAYS in your application.properties.

The meta table’s scripts are stored in the spring-batch-core.jar, you need to create it manually.

I have tried this solution from https://www.mkyong.com/spring-batch/spring-batch-metadata-tables-are-not-created-automatically/ to create tables automatically but does not work.

This is my spring-batch.xml

<?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.xsd">


    <bean id="jobRepository" class="org.springframework.batch.core.repository.support.JobRepositoryFactoryBean" depends-on="dataSource">
        <property name="dataSource" ref="dataSource" />
        <property name="transactionManager" ref="transactionManager" />
        <property name="databaseType" value="mysql" />
    </bean>

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

    <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>

<?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.xsd">

</bean>

</bean>

<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>

Finally, I create the tables manually. Of course, you can implement this via flyway

1-5. Problem 5

When the job was executed successfully without any exceptions, and you run it again.

1-5-1. Reason:

You will get the “All steps already completed or no steps configured for this job.” message in table batch_job_execution and job quit with exit code NOOP, it might be that you are running the same job with exactly the same parameters.

Please add a timestamp in jobParameters to avoid this problem.

JobParameters jobParameters = new JobParametersBuilder()
         .addLong( "timestamp", System.currentTimeMillis() )
         .toJobParameters();
      JobExecution result = null;
      try
      {
         result = jobLauncher.run( skuToDatabaseJob, jobParameters );
      }
......

JobParameters jobParameters = new JobParametersBuilder()

.addLong( "timestamp", System.currentTimeMillis() )

.toJobParameters();

JobExecution result = null;

try

{

result = jobLauncher.run( skuToDatabaseJob, jobParameters );

}

......

ExitStatus es = result.getExitStatus();
if (es.getExitCode().equals( ExitStatus.COMPLETED.getExitCode() )){......}

1 2	ExitStatus es = result.getExitStatus(); if (es.getExitCode().equals( ExitStatus.COMPLETED.getExitCode() )){......}

Ref: https://stackoverflow.com/questions/19573646/how-to-make-my-spring-batch-step-executions-end-with-statuses-other-than-complet

2. Code:

/*
 * Copyright (c) 2016-2017 Mobabel.net
 *
 * All rights reserved.
 */

package net.mobabel.nova.service.shop.custom.batch;

import com.alibaba.druid.pool.DruidDataSource;
import net.mobabel.nova.core.util.Logger;
import net.mobabel.nova.model.shop.ProductSku;
import org.springframework.batch.core.ExitStatus;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.JobParametersBuilder;
import org.springframework.batch.core.JobParametersInvalidException;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.core.launch.support.RunIdIncrementer;
import org.springframework.batch.core.launch.support.SimpleJobLauncher;
import org.springframework.batch.core.repository.JobExecutionAlreadyRunningException;
import org.springframework.batch.core.repository.JobInstanceAlreadyCompleteException;
import org.springframework.batch.core.repository.JobRepository;
import org.springframework.batch.core.repository.JobRestartException;
import org.springframework.batch.core.repository.support.JobRepositoryFactoryBean;
import org.springframework.batch.item.ItemProcessor;
import org.springframework.batch.item.ItemWriter;
import org.springframework.batch.item.database.BeanPropertyItemSqlParameterSourceProvider;
import org.springframework.batch.item.database.JdbcBatchItemWriter;
import org.springframework.batch.item.file.FlatFileItemReader;
import org.springframework.batch.item.file.mapping.BeanWrapperFieldSetMapper;
import org.springframework.batch.item.file.mapping.DefaultLineMapper;
import org.springframework.batch.item.file.transform.DelimitedLineTokenizer;
import org.springframework.batch.support.DatabaseType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.core.io.FileSystemResource;
import org.springframework.stereotype.Component;
import org.springframework.transaction.PlatformTransactionManager;

@Component
@EnableBatchProcessing
public class SpringBatchProcessingImpl implements SpringBatchProcessing
{

   private static Logger logger = Logger.getLogger( SpringBatchProcessingImpl.class );

   @Value( "${ecommerce.config.csv_file}" )
   private String fetchFile;

   @Autowired
   public JobBuilderFactory jobBuilderFactory;

   @Autowired
   public StepBuilderFactory stepBuilderFactory;

   @Autowired
   public DruidDataSource dataSource;

   @Autowired
   private JobLauncher jobLauncher;

   @Autowired
   private Job skuToDatabaseJob;

   @Bean
   public JobRepository jobRepository( DruidDataSource dataSource, PlatformTransactionManager transactionManager ) throws Exception
   {

      JobRepositoryFactoryBean jobRepositoryFactoryBean = new JobRepositoryFactoryBean();
      jobRepositoryFactoryBean.setDataSource( dataSource );
      jobRepositoryFactoryBean.setTransactionManager( transactionManager );
      jobRepositoryFactoryBean.setDatabaseType( String.valueOf( DatabaseType.MYSQL ) );
      jobRepositoryFactoryBean.setIsolationLevelForCreate( "ISOLATION_SERIALIZABLE" );
      //for oracle
      //jobRepositoryFactoryBean.setIsolationLevelForCreate("ISOLATION_READ_COMMITTED");
      jobRepositoryFactoryBean.afterPropertiesSet();
      return jobRepositoryFactoryBean.getObject();
   }

   @Bean
   public SimpleJobLauncher jobLauncher( DruidDataSource dataSource, PlatformTransactionManager transactionManager ) throws Exception
   {
      SimpleJobLauncher jobLauncher = new SimpleJobLauncher();
      jobLauncher.setJobRepository( jobRepository( dataSource, transactionManager ) );
      return jobLauncher;
   }

   @Bean
   public FlatFileItemReader<CustomSku> csvSkuReader()
   {
      FlatFileItemReader<CustomSku> reader = new FlatFileItemReader<CustomSku>();
      reader.setResource( new FileSystemResource( fetchFile ) );
      reader.setLinesToSkip( 1 );
      reader.setLineMapper( new DefaultLineMapper<CustomSku>()
      {{
         setLineTokenizer( new DelimitedLineTokenizer()
         {{
            setNames( new String[] { "refFromStore", "size", "color", "stock", "BrandName", "styleCode", "officePrice", "name", "skuFromStore", "weight" } );
            setDelimiter( ";" );
         }} );
         setFieldSetMapper( new BeanWrapperFieldSetMapper<CustomSku>()
         {{
            setTargetType( CustomSku.class );
         }} );
      }} );
      return reader;
   }

   @Bean
   ItemProcessor<CustomSku, ProductSku> skuDataProcessor()
   {
      SkuDataProcessor skuDataProcessor = new SkuDataProcessor();
      return skuDataProcessor;
   }

   @Bean
   public ItemWriter<ProductSku> csvSkuWriter()
   {
      JdbcBatchItemWriter<ProductSku> writer = new JdbcBatchItemWriter<ProductSku>();
      writer.setItemSqlParameterSourceProvider( new BeanPropertyItemSqlParameterSourceProvider<ProductSku>() );
      writer.setSql( "INSERT INTO sh_product_sku (id) VALUES (:id)" );
      writer.setDataSource( dataSource );
      writer.afterPropertiesSet();
      return writer;
   }

   @Bean
   public NoOpItemWriter noOpWriter()
   {
      return new NoOpItemWriter();
   }

   // end reader, writer, and processor

   // begin job info
   @Bean
   public Step stepImport()
   {
      return stepBuilderFactory.get( "stepImport" )
         //Must be 1, otherwise every new  item will repeat adding duplicated item, because in the check list,
         //the duplication checking will be executed in every chunksize frequency
         .<CustomSku, ProductSku>chunk( 1 )
         .reader( csvSkuReader() )
         .processor( skuDataProcessor() )
         .writer( noOpWriter() )
         .build();
   }

   @Bean
   Job skuToDatabaseJob( SkuJobListener listener )
   {
      return jobBuilderFactory.get( "skuToDatabaseJob" )
         .incrementer( new RunIdIncrementer() )
         .listener( listener )
         .flow( stepImport() )
         .end()
         .build();
   }
   // end job info

   @Override
   public void run() throws Exception
   {
      JobParameters jobParameters = new JobParametersBuilder()
         .addLong( "timestamp", System.currentTimeMillis() )
         .toJobParameters();
      JobExecution result = null;
      try
      {
         result = jobLauncher.run( skuToDatabaseJob, jobParameters );
      }
      catch (JobExecutionAlreadyRunningException e)
      {
         logger.error( "", e );
      }
      catch (JobRestartException e)
      {
         logger.error( "", e );
      }
      catch (JobInstanceAlreadyCompleteException e)
      {
         logger.error( "", e );
      }
      catch (JobParametersInvalidException e)
      {
         logger.error( "", e );
      }
      ExitStatus es = result.getExitStatus();
      if (es.getExitCode().equals( ExitStatus.COMPLETED.getExitCode() ))
      {
         logger.info( "sku database refresh job finished" );
      }
      else if (es.getExitCode().equals( ExitStatus.NOOP.getExitCode() ))
      {
         logger.warn( "sku database refresh job noop" );
      }
      else
      {
         logger.error( "sku database refresh job failed" );
      }

   }

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

package net.mobabel.nova.service.shop.custom.batch;

import com.alibaba.druid.pool.DruidDataSource;

import net.mobabel.nova.core.util.Logger;

import net.mobabel.nova.model.shop.ProductSku;

import org.springframework.batch.core.ExitStatus;

import org.springframework.batch.core.Job;

import org.springframework.batch.core.JobExecution;

import org.springframework.batch.core.JobParameters;

import org.springframework.batch.core.JobParametersBuilder;

import org.springframework.batch.core.JobParametersInvalidException;

import org.springframework.batch.core.Step;

import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;

import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;

import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;

import org.springframework.batch.core.launch.JobLauncher;

import org.springframework.batch.core.launch.support.RunIdIncrementer;

import org.springframework.batch.core.launch.support.SimpleJobLauncher;

import org.springframework.batch.core.repository.JobExecutionAlreadyRunningException;

import org.springframework.batch.core.repository.JobInstanceAlreadyCompleteException;

import org.springframework.batch.core.repository.JobRepository;

import org.springframework.batch.core.repository.JobRestartException;

import org.springframework.batch.core.repository.support.JobRepositoryFactoryBean;

import org.springframework.batch.item.ItemProcessor;

import org.springframework.batch.item.ItemWriter;

import org.springframework.batch.item.database.BeanPropertyItemSqlParameterSourceProvider;

import org.springframework.batch.item.database.JdbcBatchItemWriter;

import org.springframework.batch.item.file.FlatFileItemReader;

import org.springframework.batch.item.file.mapping.BeanWrapperFieldSetMapper;

import org.springframework.batch.item.file.mapping.DefaultLineMapper;

import org.springframework.batch.item.file.transform.DelimitedLineTokenizer;

import org.springframework.batch.support.DatabaseType;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.context.annotation.Bean;

import org.springframework.core.io.FileSystemResource;

import org.springframework.stereotype.Component;

import org.springframework.transaction.PlatformTransactionManager;

@Component

@EnableBatchProcessing

public class SpringBatchProcessingImpl implements SpringBatchProcessing

{

private static Logger logger = Logger.getLogger( SpringBatchProcessingImpl.class );

@Value( "${ecommerce.config.csv_file}" )

private String fetchFile;

@Autowired

public JobBuilderFactory jobBuilderFactory;

@Autowired

public StepBuilderFactory stepBuilderFactory;

@Autowired

public DruidDataSource dataSource;

@Autowired

private JobLauncher jobLauncher;

@Autowired

private Job skuToDatabaseJob;

@Bean

public JobRepository jobRepository( DruidDataSource dataSource, PlatformTransactionManager transactionManager ) throws Exception

{

JobRepositoryFactoryBean jobRepositoryFactoryBean = new JobRepositoryFactoryBean();

jobRepositoryFactoryBean.setDataSource( dataSource );

jobRepositoryFactoryBean.setTransactionManager( transactionManager );

jobRepositoryFactoryBean.setDatabaseType( String.valueOf( DatabaseType.MYSQL ) );

jobRepositoryFactoryBean.setIsolationLevelForCreate( "ISOLATION_SERIALIZABLE" );

//for oracle

//jobRepositoryFactoryBean.setIsolationLevelForCreate("ISOLATION_READ_COMMITTED");

jobRepositoryFactoryBean.afterPropertiesSet();

return jobRepositoryFactoryBean.getObject();

}

@Bean

public SimpleJobLauncher jobLauncher( DruidDataSource dataSource, PlatformTransactionManager transactionManager ) throws Exception

{

SimpleJobLauncher jobLauncher = new SimpleJobLauncher();

jobLauncher.setJobRepository( jobRepository( dataSource, transactionManager ) );

return jobLauncher;

}

@Bean

public FlatFileItemReader<CustomSku> csvSkuReader()

{

FlatFileItemReader<CustomSku> reader = new FlatFileItemReader<CustomSku>();

reader.setResource( new FileSystemResource( fetchFile ) );

reader.setLinesToSkip( 1 );

reader.setLineMapper( new DefaultLineMapper<CustomSku>()

{{

setLineTokenizer( new DelimitedLineTokenizer()

{{

setNames( new String[] { "refFromStore", "size", "color", "stock", "BrandName", "styleCode", "officePrice", "name", "skuFromStore", "weight" } );

setDelimiter( ";" );

}} );

setFieldSetMapper( new BeanWrapperFieldSetMapper<CustomSku>()

{{

setTargetType( CustomSku.class );

}} );

return reader;

}

@Bean

ItemProcessor<CustomSku, ProductSku> skuDataProcessor()

{

SkuDataProcessor skuDataProcessor = new SkuDataProcessor();

return skuDataProcessor;

}

@Bean

public ItemWriter<ProductSku> csvSkuWriter()

{

JdbcBatchItemWriter<ProductSku> writer = new JdbcBatchItemWriter<ProductSku>();

writer.setItemSqlParameterSourceProvider( new BeanPropertyItemSqlParameterSourceProvider<ProductSku>() );

writer.setSql( "INSERT INTO sh_product_sku (id) VALUES (:id)" );

writer.setDataSource( dataSource );

writer.afterPropertiesSet();

return writer;

}

@Bean

public NoOpItemWriter noOpWriter()

{

return new NoOpItemWriter();

}

// end reader, writer, and processor

// begin job info

@Bean

public Step stepImport()

{

return stepBuilderFactory.get( "stepImport" )

//Must be 1, otherwise every new item will repeat adding duplicated item, because in the check list,

//the duplication checking will be executed in every chunksize frequency

.<CustomSku, ProductSku>chunk( 1 )

.reader( csvSkuReader() )

.processor( skuDataProcessor() )

.writer( noOpWriter() )

.build();

}

@Bean

Job skuToDatabaseJob( SkuJobListener listener )

{

return jobBuilderFactory.get( "skuToDatabaseJob" )

.incrementer( new RunIdIncrementer() )

.listener( listener )

.flow( stepImport() )

.end()

.build();

}

// end job info

@Override

public void run() throws Exception

{

JobParameters jobParameters = new JobParametersBuilder()

.addLong( "timestamp", System.currentTimeMillis() )

.toJobParameters();

JobExecution result = null;

try

{

result = jobLauncher.run( skuToDatabaseJob, jobParameters );

}

catch (JobExecutionAlreadyRunningException e)

{

logger.error( "", e );

}

catch (JobRestartException e)

{

logger.error( "", e );

}

catch (JobInstanceAlreadyCompleteException e)

{

logger.error( "", e );

}

catch (JobParametersInvalidException e)

{

logger.error( "", e );

}

ExitStatus es = result.getExitStatus();

if (es.getExitCode().equals( ExitStatus.COMPLETED.getExitCode() ))

{

logger.info( "sku database refresh job finished" );

}

else if (es.getExitCode().equals( ExitStatus.NOOP.getExitCode() ))

{

logger.warn( "sku database refresh job noop" );

}

else

{

logger.error( "sku database refresh job failed" );

}

/*
 * Copyright (c) 2016-2018 Mobabel.net
 *
 * All rights reserved.
 */
package net.mobabel.nova.service.shop.custom.batch;

import net.mobabel.nova.core.util.Logger;
import net.mobabel.nova.model.shop.ProductSku;
import net.mobabel.nova.service.shop.custom.SkuImportService;
import net.mobabel.nova.service.utils.SpringContextUtils;
import org.springframework.batch.item.ItemProcessor;

public class SkuDataProcessor implements ItemProcessor<CustomSku, ProductSku>
{

   private static Logger logger = Logger.getLogger( SkuDataProcessor.class );

   @Override
   public ProductSku process( final CustomSku inSku ) throws Exception
   {
      //This is your custom service to check and import records into database
      SkuImportService skuImportService = (SkuImportService) SpringContextUtils.getBean( "skuImportService" );
      skuImportService.importSkuFromCSV( inSku );

      //do nothing here
      final ProductSku outSku = new ProductSku();
      outSku.setName( inSku.getName() );

      logger.info( "Sku converting (" + inSku + ") into (" + outSku + ")" );

      return outSku;
   }

}

package net.mobabel.nova.service.shop.custom.batch;

import net.mobabel.nova.core.util.Logger;

import net.mobabel.nova.model.shop.ProductSku;

import net.mobabel.nova.service.shop.custom.SkuImportService;

import net.mobabel.nova.service.utils.SpringContextUtils;

import org.springframework.batch.item.ItemProcessor;

public class SkuDataProcessor implements ItemProcessor<CustomSku, ProductSku>

{

private static Logger logger = Logger.getLogger( SkuDataProcessor.class );

@Override

public ProductSku process( final CustomSku inSku ) throws Exception

{

//This is your custom service to check and import records into database

SkuImportService skuImportService = (SkuImportService) SpringContextUtils.getBean( "skuImportService" );

skuImportService.importSkuFromCSV( inSku );

//do nothing here

final ProductSku outSku = new ProductSku();

outSku.setName( inSku.getName() );

logger.info( "Sku converting (" + inSku + ") into (" + outSku + ")" );

return outSku;

}

Ref: NOST-95

Tags: Spring Batch

Cookie	Duration	Description
cookielawinfo-checkbox-analytics	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional	11 months	The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy	11 months	The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.

Spring Batch in Spring MVC

You may also like...

Leave a Reply Cancel reply

Meta

Categories

Spring Batch in Spring MVC

1. Exceptions

1-1. Problem 1

1-1-1. Solution

1-2. Problem 2

1-2-1. Solution:

1-3. Problem 3

1-4. Problem 4

1-4-1. Reason:

1-5. Problem 5

1-5-1. Reason:

2. Code:

You may also like...

mybatis 动态参数及其 foreach collection使用

[转]Spring AOP以及代理JDK和CGLIB

Leave a Reply Cancel reply

Meta

Categories