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我使用下面的春季3.1配置：春3.1配置：环境不注射
@Configuration
@EnableTransactionManagement
public class DataConfig {
@Inject
private Environment env;
@Inject
private DataSource dataSource;
// @Bean
public SpringLiquibase liquibase() {
SpringLiquibase b = new SpringLiquibase();
b.setDataSource(dataSource);
b.setChangeLog("classpath:META-INF/db-changelog-master.xml");
b.setContexts("test, production");
return b;
}
@Bean
public EntityManagerFactory entityManagerFactory() {
LocalContainerEntityManagerFactoryBean b = new LocalContainerEntityManagerFactoryBean();
b.setDataSource(dataSource);
HibernateJpaVendorAdapter h = new HibernateJpaVendorAdapter();
h.setShowSql(env.getProperty("jpa.showSql", Boolean.class));
h.setDatabasePlatform(env.getProperty("jpa.database"));
b.setJpaVendorAdapter(h);
return (EntityManagerFactory) b;
}
@Bean
public PersistenceExceptionTranslationPostProcessor persistenceExceptionTranslationPostProcessor() {
PersistenceExceptionTranslationPostProcessor b = new PersistenceExceptionTranslationPostProcessor();
// b.setRepositoryAnnotationType(Service.class);
// do this to make the persistence bean post processor pick up our @Service class. Normally
// it only picks up @Repository
return b;
}
@Bean
public PlatformTransactionManager transactionManager() {
JpaTransactionManager b = new JpaTransactionManager();
b.setEntityManagerFactory(entityManagerFactory());
return b;
}
/**
* Allows repositories to access RDBMS data using the JDBC API.
*/
@Bean
public JdbcTemplate jdbcTemplate() {
return new JdbcTemplate(dataSource);
}
@Bean(destroyMethod = "close")
public DataSource dataSource() {
BasicDataSource db = new BasicDataSource();
if (env != null) {
db.setDriverClassName(env.getProperty("jdbc.driverClassName"));
db.setUsername(env.getProperty("jdbc.username"));
db.setPassword(env.getProperty("jdbc.password"));
} else {
throw new RuntimeException("environment not injected");
}
return db;
}
}
的问题是，可变env没有注入和始终为空。
我还没有做过关于环境设置的任何内容，因为我不知道它是否需要或如何使用。我看着温室的例子，我没有找到任何专门针对环境的东西。我应该怎么做才能确保env被注入？
的相关文件：
// CoreConfig.java
@Configuration
public class CoreConfig {
@Bean
LocalValidatorFactoryBean validator() {
return new LocalValidatorFactoryBean();
}
/**
* Properties to support the 'standard' mode of operation.
*/
@Configuration
@Profile("standard")
@PropertySource("classpath:META-INF/runtime.properties")
static class Standard {
}
}
// the Webconfig.java
@Configuration
@EnableWebMvc
@EnableAsync
// @EnableScheduling
@EnableLoadTimeWeaving
@ComponentScan(basePackages = "com.jfd", excludeFilters = { @Filter(Configuration.class) })
@Import({ CoreConfig.class, DataConfig.class, SecurityConfig.class })
@ImportResource({ "/WEB-INF/spring/applicationContext.xml" })
public class WebConfig extends WebMvcConfigurerAdapter {
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/images/**").addResourceLocations(
"/images/");
}
@Bean
public BeanNameViewResolver beanNameViewResolver() {
BeanNameViewResolver b = new BeanNameViewResolver();
b.setOrder(1);
return b;
}
@Bean
public InternalResourceViewResolver internalResourceViewResolver() {
InternalResourceViewResolver b = new InternalResourceViewResolver();
b.setSuffix(".jsp");
b.setPrefix("/WEB-INF/jsp/");
b.setOrder(2);
return b;
}
@Bean
public CookieLocaleResolver localeResolver() {
CookieLocaleResolver b = new CookieLocaleResolver();
b.setCookieMaxAge(100000);
b.setCookieName("cl");
return b;
}
// for messages
@Bean
public ResourceBundleMessageSource messageSource() {
ResourceBundleMessageSource b = new ResourceBundleMessageSource();
b.setBasenames(new String[] { "com/jfd/core/CoreMessageResources",
"com/jfd/common/CommonMessageResources",
"com/jfd/app/AppMessageResources",
"com/jfd/app/HelpMessageResources" });
b.setUseCodeAsDefaultMessage(false);
return b;
}
@Bean
public SimpleMappingExceptionResolver simpleMappingExceptionResolver() {
SimpleMappingExceptionResolver b = new SimpleMappingExceptionResolver();
Properties mappings = new Properties();
mappings.put("org.springframework.web.servlet.PageNotFound", "p404");
mappings.put("org.springframework.dao.DataAccessException",
"dataAccessFailure");
mappings.put("org.springframework.transaction.TransactionException",
"dataAccessFailure");
b.setExceptionMappings(mappings);
return b;
}
/**
* ViewResolver configuration required to work with Tiles2-based views.
*/
@Bean
public ViewResolver viewResolver() {
UrlBasedViewResolver viewResolver = new UrlBasedViewResolver();
viewResolver.setViewClass(TilesView.class);
return viewResolver;
}
/**
* Supports FileUploads.
*/
@Bean
public MultipartResolver multipartResolver() {
CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
multipartResolver.setMaxUploadSize(500000);
return multipartResolver;
}
// for configuration
@Bean
public CompositeConfigurationFactoryBean myconfigurations()
throws ConfigurationException {
CompositeConfigurationFactoryBean b = new CompositeConfigurationFactoryBean();
PropertiesConfiguration p = new PropertiesConfiguration(
"classpath:META-INF/app-config.properties");
p.setReloadingStrategy(new FileChangedReloadingStrategy());
b.setConfigurations(new org.apache.commons.configuration.Configuration[] { p });
b.setLocations(new ClassPathResource[] { new ClassPathResource(
"META-INF/default-config.properties") });
return b;
}
@Bean
org.apache.commons.configuration.Configuration configuration()
throws ConfigurationException {
return myconfigurations().getConfiguration();
}
// and the SecurityConfig.java
@Configuration
@ImportResource({ "/WEB-INF/spring/applicationContext-security.xml" })
public class SecurityConfig {
@Bean
public BouncyCastleProvider bcProvider() {
return new BouncyCastleProvider();
}
@Bean
public PasswordEncryptor jasyptPasswordEncryptor() {
ConfigurablePasswordEncryptor b = new ConfigurablePasswordEncryptor();
b.setAlgorithm("xxxxxx");
return b;
}
@Bean
public PasswordEncoder passwordEncoder() {
PasswordEncoder b = new org.jasypt.spring.security3.PasswordEncoder();
b.setPasswordEncryptor(jasyptPasswordEncryptor());
return b;
}
}
，它仅进口2个XML来配置缓存和卡桑德拉，所以它可能不会是非常重要的。
您使用的是Java EE兼容服务器吗？ – maks