运行依赖于WebSphere中定义的资源的JUnit测试

Question

2013-07-31 13:46:17,008:could not load the application context
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [myApplication.xml]: Invocation of init method failed; nested exception is javax.naming.ServiceUnavailableException: Could not obtain an initial context due to a communication failure. Since no provider URL was specified, the default provider URL of "corbaloc:iiop:[e-mail]:2809/NameService" was used.  Make sure that any bootstrap address information in the URL is correct and that the target name server is running.  Possible causes other than an incorrect bootstrap address or unavailable name server include the network environment and workstation network configuration. [Root exception is org.omg.CORBA.TRANSIENT: java.net.ConnectException: Connection refused: connect:host=myMachineName.myCompany.com,port=2809  vmcid: IBM  minor code: E02  completed: No]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
    at java.security.AccessController.doPrivileged(AccessController.java:224)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)

DataSourcebean的定义很简单：

<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="jdbc/dataSource" />
</bean>

如何使Spring正确地连接到WebSphere JNDI，即使单元测试是在应用程序容器之外运行的？

Answer 1

尽管没有连接到WebSphere实例，但在查看JNDI资源时，您始终可以使用org.springframework.mock.JNDI包中的SimpleNamingContextBuilder。这允许您构建一个对象（例如，使用自己的直接绑定到远程JNDI服务的数据源），然后将其绑定到一个“模拟”JNDI服务，以便在测试时注入到Spring应用程序上下文中。

为此，您需要在JUnit测试的@BeForeClass（static）中进行，以确保在应用程序上下文启动之前JNDI绑定可用。（这样应用程序上下文可以在查找jdbc/datasource时找到一些东西）

如果您要在持续集成环境中使用此方法，我不建议您连接另一台服务器，但是如果您只想进行“一次性的手动测试”，您可以尝试以下方法；

@BeforeClass
public static void beforeClass() throws Exception {

    Properties properties = new Properties();
    //build your properties to the remove class
    Context context = new InitialContext(properties);
    //look up your dataSource
    DataSource ds = (DataSource) context.lookup("");
    //now build the simple
    SimpleNamingContextBuilder builder = SimpleNamingContextBuilder.emptyActivatedContextBuilder();
    builder.bind("jdbc/dataSource", ds);

}