Я работаю над Spring Boot v2.2.6.RELEASE и Spring Batch . В этом примере я считываю данные из системы Oracle и помещаю их в систему Postgres после применения некоторого фильтра данных.
Примечание. Spring Batch может читать данные из Oracle DB
, но не может записать его в PostgresDB
.
spring.datasource.url=jdbc:oracle:thin:@//localhost:1527/DB
spring.datasource.username=user
spring.datasource.password=password
spring.datasource.driver-class-name=oracle.jdbc.OracleDriver
postgres.datasource.url=jdbc:postgresql://localhost:5432/admin?currentSchema=BATCH
postgres.datasource.username=postgres
postgres.datasource.password=postgres
postgres.datasource.driver-class-name=org.postgresql.Driver
#By default, Spring runs all the job as soon as it has started its context.
spring.batch.job.enabled=false
# Chunk Size to save data
spring.chunk.size=200
spring.batch.initialize-schema=always
DatabaseConfig. java
@Configuration
public class DatabaseConfig {
@Autowired
private Environment env;
@Bean(name="oracleDS")
@Primary
public DataSource batchDataSource(){
return DataSourceBuilder.create()
.url(env.getProperty("spring.datasource.url"))
.driverClassName(env.getProperty("spring.datasource.driver-class-name"))
.username(env.getProperty("spring.datasource.username"))
.password(env.getProperty("spring.datasource.password"))
.build();
}
// All metadata tables are present here
@Bean(name="postgresDS")
public DataSource mysqlBatchDataSource(){
return DataSourceBuilder.create()
.url(env.getProperty("postgres.datasource.url"))
.driverClassName(env.getProperty("postgres.datasource.driver-class-name"))
.username(env.getProperty("postgres.datasource.username"))
.password(env.getProperty("postgres.datasource.password"))
.build();
}
}
EmployeeBatchConfig. java
@Configuration
public class EmployeeBatchConfig {
private static final String SQL = "Get the Data";
@Autowired
@Qualifier(value="oracleDS")
private DataSource dataSource;
@Autowired
@Qualifier(value="postgresDS")
private DataSource dataSourcePostgresDB;
@Bean(destroyMethod = "")
@StepScope
public JdbcCursorItemReader<Employee> EmployeeReader() throws Exception {
JdbcCursorItemReader<Employee> reader = new JdbcCursorItemReader<>();
reader.setDataSource(this.dataSource);
reader.setSql(SQL);
reader.setRowMapper(new EmployeeRowMapper());
reader.afterPropertiesSet();
return reader;
}
@Bean
public JdbcBatchItemWriter<Employee> EmployeeWriter(NamedParameterJdbcTemplate jdbcTemplate){
JdbcBatchItemWriter<Employee> writer = new JdbcBatchItemWriter<>();
writer.setDataSource(this.dataSourcePostgresDB);
writer.setJdbcTemplate(jdbcTemplate);
ItemSqlParameterSourceProvider<Employee> paramProvider = new BeanPropertyItemSqlParameterSourceProvider<>();
writer.setItemSqlParameterSourceProvider (paramProvider);
writer.setSql("INSERT INTO BATCH.EMPLOYEE(EMP_ID, FIRSTNAME) VALUES (:empId, :firstName)");
writer.afterPropertiesSet();
return writer;
}
}
Ошибка:
org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [INSERT INTO BATCH.EMPLOYEE(EMP_ID, FIRSTNAME) VALUES (?, ?)]; nested exception is java.sql.SQLSyntaxErrorException: ORA-00942: table or view does not exist
at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:235) ~[spring-jdbc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72) ~[spring-jdbc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.translateException(JdbcTemplate.java:1443) ~[spring-jdbc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:633) ~[spring-jdbc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:647) ~[spring-jdbc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.batchUpdate(JdbcTemplate.java:936) ~[spring-jdbc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.batchUpdate(NamedParameterJdbcTemplate.java:366) ~[spring-jdbc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.batch.item.database.JdbcBatchItemWriter.write(JdbcBatchItemWriter.java:182) ~[spring-batch-infrastructure-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.item.SimpleChunkProcessor.writeItems(SimpleChunkProcessor.java:193) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.item.SimpleChunkProcessor.doWrite(SimpleChunkProcessor.java:159) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.item.SimpleChunkProcessor.write(SimpleChunkProcessor.java:294) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.item.SimpleChunkProcessor.process(SimpleChunkProcessor.java:217) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:77) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:407) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:331) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:273) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:82) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:375) ~[spring-batch-infrastructure-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215) ~[spring-batch-infrastructure-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:145) ~[spring-batch-infrastructure-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:258) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:208) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148) [spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.job.AbstractJob.handleStep(AbstractJob.java:410) [spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.job.SimpleJob.doExecute(SimpleJob.java:136) [spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:319) [spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:147) [spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50) [spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:140) [spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_171]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_171]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_171]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) [spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) [spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) [spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127) [spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) [spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) [spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at com.sun.proxy.$Proxy58.run(Unknown Source) [na:na]
at com.mastercard.customer.data.management.CustomerProfileStagingBatchApplication.run(CustomerProfileStagingBatchApplication.java:50) [classes/:na]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:784) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:768) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:322) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at com.mastercard.customer.data.management.CustomerProfileStagingBatchApplication.main(CustomerProfileStagingBatchApplication.java:38) [classes/:na]
Caused by: java.sql.SQLSyntaxErrorException: ORA-00942: table or view does not exist
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:450) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:399) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:1017) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:655) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:249) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:566) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:215) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:58) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:943) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.OraclePreparedStatement.executeForRowsWithTimeout(OraclePreparedStatement.java:10932) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:11043) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at oracle.jdbc.driver.OracleStatementWrapper.executeBatch(OracleStatementWrapper.java:244) ~[ojdbc7-12.1.0.1.0.jar:12.1.0.1.0]
at com.zaxxer.hikari.pool.ProxyStatement.executeBatch(ProxyStatement.java:128) ~[HikariCP-3.4.2.jar:na]
at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeBatch(HikariProxyPreparedStatement.java) ~[HikariCP-3.4.2.jar:na]
at org.springframework.jdbc.core.JdbcTemplate.lambda$batchUpdate$2(JdbcTemplate.java:950) ~[spring-jdbc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:617) ~[spring-jdbc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
Примечание. При вставке данных в Postgres, но несколько раз попытайтесь загрузить только в Oracle. Есть ли какая-либо квалификационная проблема @Bean?
@ Решение:
Как предлагается здесь: Spring Batch - Невозможно сохранить записи в Postgres базе данных .
String sql = "INSERT INTO \"BATCH\".employee(rowid_object, status) VALUES (:rowid_object, :status)";