如何在 CamelBlueprintTestSupport 中加载 spring 上下文 xml 文件以及如何在 spring 上下文 xml 中获取数据源对象

Question

如何在 CamelBlueprintTestSupport 中加载 spring 上下文 xml 文件以及如何在 spring 上下文 xml 中获取数据源对象，问题是我遇到了异常像 com.hotel.common.persistence.dao.DAOFactory.getDAO(DAOFactory.java:27) 的 java.lang.NullPointerException 我的假设是 DAOFactory class 没有得到映射器 class es。正确吗？

我已经和你分享了我的示例代码

这是我的测试class

public class ContextRouteGetAvailabilityXmlTest 扩展了 CamelBlueprintTestSupport {

@Override
protected String getBlueprintDescriptor() {
    return "OSGI-INF/blueprint/context-beans.xml,OSGI-INF/blueprint/context-config.xml,OSGI-INF/blueprint/context-route-getAvailability.xml";
}


@Override
protected void addServicesOnStartup(Map<String, KeyValueHolder<Object, Dictionary>> services){
    BasicDataSource datasource = new BasicDataSource();

    datasource.setDriverClassName("com.mysql.jdbc.Driver");
    datasource.setUrl("jdbc:mysql://my ip:3306/test");
    datasource.setUsername("test");
    datasource.setPassword("test1");
    datasource.setConnectionProperties("useUnicode=yes;characterEncoding=utf8;");

    services.put("dataSourceMySQL", asService(datasource, null));
}

}

这是我的 spring context.xml 文件

<osgi:reference id="dataSourceMySQL" interface="javax.sql.DataSource"/>

<bean id="mybatisConfig" class="org.springframework.core.io.ClassPathResource">
    <constructor-arg value="/META-INF/config/mybatis-config.xml" />
</bean>

<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSourceMySQL" />
    <property name="configLocation" ref="mybatisConfig" />
</bean>

<bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
    <constructor-arg index="0" ref="sqlSessionFactoryBean" />
</bean>

<!-- scan for mappers and let them be autowired -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.sia.csl.hotel.common.persistence.mapper" />
    <property name="sqlSessionTemplateBeanName" value="sqlSession" />
</bean>

<bean id="daoFactory"
    class="com.common.persistence.dao.DAOFactory" />

Answer 1

OSGi 蓝图不支持 Spring XML 文件，仅支持蓝图 XML 文件。所以你不能用 CamelBlueprintTestSupport 加载 Spring XML 个文件。相反，您可以通过 camel-test-spring 模块使用常规 spring。

如果您 运行 在 OSGi 上，则 Spring XML 文件 (Spring-DM) 已弃用并停产，应该 不 被使用。相反，您应该将 Spring XML 文件迁移到 OSGI 蓝图文件。

Answer 2

我尝试通过这种方式加载数据库，并与您分享了我的 DAOFactory.java 文件

public class DAOFactory {

static Logger logger = Logger.getLogger(DAOFactory.class);

private static BundleContext bundleContext;
private static SqlSessionTemplate sqlSessionTemplate;

public static void setBundleContext(BundleContext arg0) {
    bundleContext = arg0;
}

@SuppressWarnings({ "unchecked", "rawtypes" })
public static Object getDAO(Class DaoClassName) throws InvalidSyntaxException {
    logger.debug("getDAO sqlSessionTemplate: "+sqlSessionTemplate);
    if(sqlSessionTemplate == null ) {
        setBundleContext(FrameworkUtil.getBundle(DAOFactory.class).getBundleContext());
        sqlSessionTemplate = getSqlSession() ;
        logger.debug("Received sqlSessionTemplate: "+sqlSessionTemplate);
    }
    return sqlSessionTemplate.getMapper(DaoClassName);
}

@SuppressWarnings("rawtypes")
private static ApplicationContext getApplicationContext() throws InvalidSyntaxException {
        final String filter = "(org.springframework.context.service.name=" + bundleContext.getBundle().getSymbolicName() + ")";
        logger.debug("Symbolic Name: "+filter);
        final ServiceReference[] applicationContextRefs = bundleContext.getServiceReferences(ApplicationContext.class.getName(), filter);
        @SuppressWarnings("unchecked")
        final ApplicationContext applicationContext = (ApplicationContext) bundleContext.getService(applicationContextRefs[0]);
        logger.debug("applicationContext: "+applicationContext);
        return applicationContext;

}