Question

我试图通过从Program Arguments中检索数据库参数来配置数据源bean，但问题是我收到以下异常：

Caused by: java.lang.IllegalStateException: No context holder available for step scope

计划参数：

com.myexample.conf.Config taskletExampleJob DBurl=db:3600/db DBuser=test DBpassword=test

Java代码：

 @Configuration
    @EnableBatchProcessing
    public class Config {

        @Bean
        @StepScope
        public DataSource dataSource1(@Value("#{jobParameters['DBurl']}") String url,
                                      @Value("#{jobParameters['DBuser']}") String user,
                                      @Value("#{jobParameters['DBpassword']}") String password) throws Exception {
            Properties dataSourceProperties = new Properties();
            dataSourceProperties.put("url", url);
            dataSourceProperties.put("username", user);
            dataSourceProperties.put("password", password);
            dataSourceProperties.put("defaultAutoCommit", true);
            return BasicDataSourceFactory.createDataSource(dataSourceProperties);
        }

        @Bean
        public org.springframework.batch.core.scope.StepScope stepScope() {
            final org.springframework.batch.core.scope.StepScope stepScope = new org.springframework.batch.core.scope.StepScope();
            stepScope.setAutoProxy(true);
            stepScope.setOrder(0);
            return stepScope;
        }
    }

Answer 1

我知道了，解决方案是使用Spring Boot。在这种情况下，我们甚至不必使用jobParameters，而是直接使用@Value（“ DBurl”）

@Configuration类中的Spring Batch作业参数

1 个答案: