嗨，我正在尝试使用批处理框架运行两个作业。我的问题是 SimpleJobLauncher 只运行一个作业列表中的最后一个作业。我在做什么：我的数据库中有两个工作以及工作的步骤。我从数据库中读取作业数据并按以下方式处理它
public class BatchJobScheduler {
private static Log sLog = LogFactory.getLog(BatchJobScheduler.class);
private ApplicationContext ac;
private DataSourceTransactionManager mTransactionManager;
private SimpleJobLauncher mJobLauncher;
private JobRepository mJobRepository;
private SimpleStepFactoryBean stepFactory;
private MapJobRegistry mapJobRegistry;
private JobDetailBean jobDetail;
private CronTriggerBean cronTrigger;
private SimpleJob job;
private SchedulerFactoryBean schedulerFactory;
private static String mDriverClass;
private static String mConnectionUrl;
private static String mUser;
private static String mPassword;
public static JobMetaDataFeeder metadataFeeder;
static {
try {
loadProperties();
metadataFeeder = new JobMetaDataFeeder();
metadataFeeder.configureDataSource(mDriverClass, mConnectionUrl,
mUser, mPassword);
} catch (FileNotFoundException e) {
} catch (IOException e) {
} catch (SQLException e) {
} catch (ClassNotFoundException e) {
}
}
private static void loadProperties() throws FileNotFoundException,
IOException {
Properties properties = new Properties();
InputStream is;
if (BatchJobScheduler.class.getClassLoader() != null) {
is = BatchJobScheduler.class.getClassLoader().getResourceAsStream(
"batch.properties");
} else {
is = System.class.getClassLoader().getResourceAsStream(
"batch.properties");
}
properties.load(is);
mDriverClass = properties.getProperty("batch.jdbc.driver");
mConnectionUrl = properties.getProperty("batch.jdbc.url");
mUser = properties.getProperty("batch.jdbc.user");
mPassword = properties.getProperty("batch.jdbc.password");
}
public void start(WebApplicationContext wac) throws Exception {
try {
ac = new FileSystemXmlApplicationContext("batch-spring.xml");
mTransactionManager = (DataSourceTransactionManager) ac
.getBean("mTransactionManager");
mJobLauncher = (SimpleJobLauncher) ac.getBean("mJobLauncher");
mJobRepository = (JobRepository) ac.getBean("mRepositoryFactory");
mJobLauncher.afterPropertiesSet();
List<JobMetadata> jobsMetaData = getJobsData(mDriverClass,
mConnectionUrl, mUser, mPassword, null);
createAndRunScheduler(jobsMetaData);
} catch (Exception e) {
e.printStackTrace();
sLog.error("Exception while starting job", e);
}
}
@SuppressWarnings("unchecked")
public List<CronTriggerBean> getJobTriggers(List<JobMetadata> jobsMetaData)
throws Exception {
List<CronTriggerBean> triggers = new ArrayList<CronTriggerBean>();
for (JobMetadata jobMetadata : jobsMetaData) {
job = (SimpleJob) ac.getBean("job");
job.setName(jobMetadata.getJobName());
ArrayList<Step> steps = new ArrayList<Step>();
for (StepMetadata stepMetadata : jobMetadata.getSteps()) {
// System.err.println(ac.getBean("stepFactory").getClass());
stepFactory = new SimpleStepFactoryBean<String, Object>();
stepFactory.setTransactionManager(mTransactionManager);
stepFactory.setJobRepository(mJobRepository);
stepFactory.setCommitInterval(stepMetadata.getCommitInterval());
stepFactory.setStartLimit(stepMetadata.getStartLimit());
T5CItemReader itemReader = (T5CItemReader) BeanUtils
.instantiateClass(Class.forName(stepMetadata
.getStepReaderClass()));
itemReader
.setItems(getItemList(jobMetadata.getJobParameters()));
stepFactory.setItemReader(itemReader);
stepFactory.setItemProcessor((ItemProcessor) BeanUtils
.instantiateClass(Class.forName(stepMetadata
.getStepProcessorClass())));
stepFactory.setItemWriter((ItemWriter) BeanUtils
.instantiateClass(Class.forName(stepMetadata
.getStepWriterClass())));
stepFactory.setBeanName(stepMetadata.getStepName());
steps.add((Step) stepFactory.getObject());
}
job.setSteps(steps);
ReferenceJobFactory jobFactory = new ReferenceJobFactory(job);
mapJobRegistry = (MapJobRegistry) ac.getBean("jobRegistry");
mapJobRegistry.register(jobFactory);
jobDetail = (JobDetailBean) ac.getBean("jobDetail");
jobDetail.setJobClass(Class.forName(jobMetadata.getMJoblauncher()));
jobDetail.setGroup(jobMetadata.getJobGroupName());
jobDetail.setName(jobMetadata.getJobName());
Map<String, Object> jobDataMap = new HashMap<String, Object>();
jobDataMap.put("jobName", jobMetadata.getJobName());
jobDataMap.put("jobLocator", mapJobRegistry);
jobDataMap.put("jobLauncher", mJobLauncher);
jobDataMap.put("timestamp", new Date());
// jobDataMap.put("jobParams", jobMetadata.getJobParameters());
jobDetail.setJobDataAsMap(jobDataMap);
jobDetail.afterPropertiesSet();
cronTrigger = (CronTriggerBean) ac.getBean("cronTrigger");
cronTrigger.setJobDetail(jobDetail);
cronTrigger.setJobName(jobMetadata.getJobName());
cronTrigger.setJobGroup(jobMetadata.getJobGroupName());
cronTrigger.setCronExpression(jobMetadata.getCronExpression());
triggers.add(cronTrigger);
}
return triggers;
}
private void createAndRunScheduler(List<JobMetadata> jobsMetaData)
throws Exception {
// System.err.println(ac.getBean("schedulerFactory").getClass());
schedulerFactory = new SchedulerFactoryBean();
List<CronTriggerBean> triggerList = getJobTriggers(jobsMetaData);
Trigger[] triggers = new Trigger[triggerList.size()];
int triggerCount = 0;
for (CronTriggerBean trigger : triggerList) {
triggers[triggerCount] = trigger;
triggerCount++;
}
schedulerFactory.setTriggers(triggers);
schedulerFactory.afterPropertiesSet();
}
private List<JobMetadata> getJobsData(String driverClass,
String connectionURL, String user, String password, String query)
throws SQLException, ClassNotFoundException {
metadataFeeder.createJobMetadata(query);
return metadataFeeder.getJobsMetadata();
}
private List<String> getItemList(String jobParameterString) {
List<String> itemList = new ArrayList<String>();
String[] parameters = jobParameterString.split(";");
for (String string : parameters) {
String[] mapKeyValue = string.split("=");
if (mapKeyValue.length == 2) {
itemList.add(mapKeyValue[0] + ":" + mapKeyValue[1]);
} else {
// exception for invalid job parameters
System.out.println("exception for invalid job parameters");
}
}
return itemList;
}
private Map<String, Object> getParameterMap(String jobParameterString) {
Map<String, Object> parameterMap = new HashMap<String, Object>();
String[] parameters = jobParameterString.split(";");
for (String string : parameters) {
String[] mapKeyValue = string.split("=");
if (mapKeyValue.length == 2) {
parameterMap.put(mapKeyValue[0], mapKeyValue[1]);
} else {
// exception for invalid job parameters
System.out.println("exception for invalid job parameters");
}
}
return parameterMap;
}
}
public class MailJobLauncher extends QuartzJobBean {
/**
* Special key in job data map for the name of a job to run.
*/
static final String JOB_NAME = "jobName";
private static Log sLog = LogFactory.getLog(MailJobLauncher.class);
private JobLocator mJobLocator;
private JobLauncher mJobLauncher;
/**
* Public setter for the {@link JobLocator}.
*
* @param jobLocator
* the {@link JobLocator} to set
*/
public void setJobLocator(JobLocator jobLocator) {
this.mJobLocator = jobLocator;
}
/**
* Public setter for the {@link JobLauncher}.
*
* @param jobLauncher
* the {@link JobLauncher} to set
*/
public void setJobLauncher(JobLauncher jobLauncher) {
this.mJobLauncher = jobLauncher;
}
@Override
@SuppressWarnings("unchecked")
protected void executeInternal(JobExecutionContext context) {
Map<String, Object> jobDataMap = context.getMergedJobDataMap();
executeRecursive(jobDataMap);
}
private void executeRecursive(Map<String, Object> jobDataMap) {
String jobName = (String) jobDataMap.get(JOB_NAME);
JobParameters jobParameters = getJobParametersFromJobMap(jobDataMap);
sLog.info("Quartz trigger firing with Spring Batch jobName=" + jobName
+ jobDataMap + jobParameters);
try {
mJobLauncher.run(mJobLocator.getJob(jobName), jobParameters);
} catch (JobInstanceAlreadyCompleteException e) {
jobDataMap.remove("timestamp");
jobDataMap.put("timestamp", new Date());
executeRecursive(jobDataMap);
} catch (NoSuchJobException e) {
sLog.error("Could not find job.", e);
} catch (JobExecutionException e) {
sLog.error("Could not execute job.", e);
}
}
/*
* Copy parameters that are of the correct type over to {@link
* JobParameters}, ignoring jobName.
* @return a {@link JobParameters} instance
*/
private JobParameters getJobParametersFromJobMap(
Map<String, Object> jobDataMap) {
JobParametersBuilder builder = new JobParametersBuilder();
for (Entry<String, Object> entry : jobDataMap.entrySet()) {
String key = entry.getKey();
Object value = entry.getValue();
if (value instanceof String && !key.equals(JOB_NAME)) {
builder.addString(key, (String) value);
} else if (value instanceof Float || value instanceof Double) {
builder.addDouble(key, ((Number) value).doubleValue());
} else if (value instanceof Integer || value instanceof Long) {
builder.addLong(key, ((Number) value).longValue());
} else if (value instanceof Date) {
builder.addDate(key, (Date) value);
} else {
sLog
.debug("JobDataMap contains values which are not job parameters (ignoring).");
}
}
return builder.toJobParameters();
}
}
我无法弄清楚为什么启动器忽略了所有其他工作，请帮助我。问候