Spring批处理和Spring Boot中的DataSource问题

Question

我正在开发一个与弹簧批量集成的弹簧启动应用程序。当我使用具有以下数据源属性的独立spring boot应用程序时，它可以正常工作。但是当我将spring批量集成到应用程序时，它会产生错误。

application.yml

spring:
  datasource:
    url: jdbc:oracle:thin:@//localhost:1521:orcl
    username: test
    password: Abcd

Oracle configuration.Java

@Primary 
@Configuration
@ConfigurationProperties(prefix = "spring.datasource")
public class OracleConfiguration {

    @NotNull
    private String username;

    @NotNull
    private String password;

    @NotNull
    private String url;

    public void setUsername(String username) {
        this.username = username;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public void setUrl(String url) {
        this.url = url;
    }


    @Bean
    public DataSource dataSource() throws SQLException {

        OracleDataSource dataSource = new OracleDataSource();
        dataSource.setUser(username);
        dataSource.setPassword(password);
        dataSource.setURL(url);
        dataSource.setImplicitCachingEnabled(true);
        dataSource.setFastConnectionFailoverEnabled(true);
        return dataSource;
    } 

dB service imp了.Java

@Repository
public class DbServiceImpl extends JdbcDaoSupport{

    @Autowired
    DataSource dataSource;


    @PostConstruct
    private void initialize() throws SQLException{
        setDataSource(dataSource);


    public String getCode(String name, String code)
    {
        String sql = "";

        String baseCode = getJdbcTemplate().queryForObject(sql, new Object[] { name, code },String.class);
        return baseCode;

    }

JobConfiguration：

@Bean
public Job myJob() throws Exception {

    Job job =jobBuilderFactory.get("MyJob").start(moveToQueryStep()).build();
    return job;
}

我试图通过作业配置中的moveToQueryStep（）在DbServiceImpl中调用getCode（）。我可以在DbServiceImpl.java“initialize”方法中设置数据源，但是当spring批量尝试执行tasklet步骤时，它会抛出以下错误。我尝试了很多解决方案，但没有任请帮忙

java.lang.IllegalStateException：无法在org.springframework的org.springframework.boot.SpringApplication.callRunner（SpringApplication.java:803）[spring-boot-2.0.4.RELEASE.jar：2.0.4.RELEASE]中执行CommandLineRunner .boot.SpringApplication.callRunners（SpringApplication.java:784）[spring-boot-2.0.4.RELEASE.jar：2.0.4.RELEASE] org.springframework.boot.SpringApplication.run（SpringApplication.java:338）[ org.springframework.boot.SpringApplication.run上的spring-boot-2.0.4.RELEASE.jar：2.0.4.RELEASE]（SpringApplication.java:1258）[spring-boot-2.0.4.RELEASE.jar：2.0。 4.RELEASE]在org.springframework.boot.SpringApplication.run（SpringApplication.java:1246）[spring-boot-2.0.4.RELEASE.jar：2.0.4.RELEASE] com.equifax.d360.cb.Application .main（Application.java:20）[classes /：na]引起：org.springframework.jdbc.BadSqlGrammarException：PreparedStatementCallback;错误的SQL语法[SELECT JOB_INSTANCE_ID，来自BATCH_JOB_INSTANCE的JOB_NAME = JOB_NAME =？按JOB_INSTANCE_ID desc]排序;嵌套异常是java.sql.SQLSyntaxErrorException：ORA-00942：表或视图不存在

at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:234) ~[spring-jdbc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72) ~[spring-jdbc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.translateException(JdbcTemplate.java:1402) ~[spring-jdbc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:620) ~[spring-jdbc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:657) ~[spring-jdbc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:688) ~[spring-jdbc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:700) ~[spring-jdbc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.batch.core.repository.dao.JdbcJobInstanceDao.getJobInstances(JdbcJobInstanceDao.java:230) ~[spring-batch-core-4.0.1.RELEASE.jar:4.0.1.RELEASE]
at org.springframework.batch.core.explore.support.SimpleJobExplorer.getJobInstances(SimpleJobExplorer.java:173) ~[spring-batch-core-4.0.1.RELEASE.jar:4.0.1.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_172]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_172]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_172]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_172]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:197) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127) ~[spring-batch-core-4.0.1.RELEASE.jar:4.0.1.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at com.sun.proxy.$Proxy51.getJobInstances(Unknown Source) ~[na:na]
at org.springframework.batch.core.JobParametersBuilder.getNextJobParameters(JobParametersBuilder.java:254) ~[spring-batch-core-4.0.1.RELEASE.jar:4.0.1.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.execute(JobLauncherCommandLineRunner.java:162) ~[spring-boot-autoconfigure-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.executeLocalJobs(JobLauncherCommandLineRunner.java:179) ~[spring-boot-autoconfigure-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.launchJobFromProperties(JobLauncherCommandLineRunner.java:134) ~[spring-boot-autoconfigure-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.run(JobLauncherCommandLineRunner.java:128) ~[spring-boot-autoconfigure-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:800) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
... 5 common frames omitted

引起：java.sql.SQLSyntaxErrorException：ORA-00942：表或视图不存在

at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:450) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:399) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:1059) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:522) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:257) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:587) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:225) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:53) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:774) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:925) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1111) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:4798) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:4845) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1501) ~[ojdbc7-12.1.0.2.jar:12.1.0.2.0]
at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:666) ~[spring-jdbc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:605) ~[spring-jdbc-5.0.8.RELEASE.jar:5.0.8.RELEASE]

编辑2：

我可以通过以下解决方案解决问题

https://stackoverflow.com/a/49551527/9813861

除了提供空数据源之外，还有更好的方法吗？

Answer 1

您需要为Oracle运行Spring批处理SQL初始化脚本。它预先打包了SQL初始化脚本，适用于大多数流行的数据库平台。 Spring Boot可以检测您的数据库类型并在启动时执行这些脚本。如果使用嵌入式数据库，默认情况下会发生这种情况。但是当您使用Oracle时，需要在application.properties文件中添加以下内容：

spring.batch.initialize-schema=always

这是针对application.properties文件的。您需要将其转换为application.yml的正确格式