Java 以编程方式为Spring创建JNDI数据源

我有一个现有的基于Spring web的应用程序，它有使用JNDI定义的数据源，我正在尝试创建一个独立的应用程序来使用bean。如何在独立应用程序中以编程方式创建JNDI条目和数据库属性

<bean id="myDataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="java:comp/env/jdbc/MyDS" />
</bean>

    public static void main(String[] args) {

      // this throws an error since the JNDI lookup fails - can I programmatically define the database properties here?

    ClassPathXmlApplicationContext ctx = new  ClassPathXmlApplicationContext("applicationContext.xml");

    UserService userService = ctx.getBean(UserService.class);
    User user = userService.findUserById("jdoe");

    System.out.println("display name: " + user.getDisplayName());
}

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org.springframework.test

依赖项通过以下方式提供支持：

这应该行得通

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干杯，

我试过了，但在线程“main”org.springframework.beans.factory.BeanCreationException中出现了错误“异常”：创建名为“myDataSource”的bean时出错，该bean在类路径资源[applicationContext.xml]中定义：调用init方法失败；嵌套异常为javax.naming.NoInitialContextException：需要在环境或系统属性中指定类名，或作为小程序参数，或在应用程序资源文件中指定：java.naming.factory.initial'My bad，当然，在尝试创建Spring上下文之前，应该创建并激活JNDI树——我已经相应地编辑了答案。您能给我一个合理的解释，为什么这个解决方案在使用jtaDataSource时会给我一个错误吗？

public static void main(String[] args) {
    setupJNDI();

    ClassPathXmlApplicationContext ctx = new  ClassPathXmlApplicationContext("applicationContext.xml");

    UserService userService = ctx.getBean(UserService.class);
    User user = userService.findUserById("jdoe");

    System.out.println("display name: " + user.getDisplayName());
}


private static void setupJNDI() {
    InitialContext ic;
    try {
        ic = new InitialContext();
        ic.createSubcontext("java:");
        ic.createSubcontext("java:/comp");
        ic.createSubcontext("java:/comp/env");
        ic.createSubcontext("java:/comp/env/jdbc");
        SQLServerConnectionPoolDataSource myDS = new SQLServerConnectionPoolDataSource();
        opaDS.setServerName("myserver");
        opaDS.setPortNumber(1433);
        opaDS.setUser("user");
        opaDS.setPassword("password");

        ic.bind("java:/comp/env/jdbc/MyDS", myDS);
    } catch (NamingException e) {
        e.printStackTrace();
    }
}

// First create the mock JNDI tree and bind the DS
SimpleNamingContextBuilder builder = new SimpleNamingContextBuilder();
DataSource ds = new ComboPooledDataSource();
ds.setDriverClass( ... ); // etc. for uid, password, url
builder.bind( "java:comp/env/jdbc/MyDS" , ds );
builder.activate();

// Then create the Spring context, which should now be able 
// to resolve the JNDI datasource
ApplicationContext context = new ClassPathXmlApplicationContext( "..." );