如何在同一屏幕上为不同的应用程序上下文获得不同的Spring标签消息

Question

我在一个应用程序中有不同的上下文(比如A和B)，这两个上下文使用相同的屏幕，但我在屏幕字段上显示不同的标签名称。

资源包如下:

对于情境A, sample.code=Text From Application A变为sampleA.properties

对于上下文B, sample.code=Text From Application B变为sampleB.properties

并且，我可以区分上下文和会话属性。在这种情况下，我如何覆盖Spring MessageTag并读取有关上下文集的消息?

JSP: <spring:message code="sample.code" />

谢谢你的帮助。

Answer 1

为不同的servlet上下文配置注册单独的ResourceBundleMessageSource

。你的AbstractAnnotationConfigDispatcherServletInitializer

@Override
public void onStartup(ServletContext servletContext) throws ServletException {
    // root context
    AnnotationConfigWebApplicationContext rootContext =
            new AnnotationConfigWebApplicationContext();
    rootContext.register(RootConfig.class); // configuration class for root context
    servletContext.addListener(new ContextLoaderListener(rootContext));
    // dispatcher servlet 1
    AnnotationConfigWebApplicationContext webContext1 = 
            new AnnotationConfigWebApplicationContext();
    webContext1.setParent(rootContext);
    webContext1.register(WebConfig1.class); // configuration class for servlet 1
    ServletRegistration.Dynamic dispatcher1 =
    servletContext.addServlet("dispatcher1", new DispatcherServlet(webContext1));
    dispatcher1.setLoadOnStartup(1);
    dispatcher1.addMapping("/subcontext1");
    // dispatcher servlet 2
   AnnotationConfigWebApplicationContext webContext2 = 
            new AnnotationConfigWebApplicationContext();
    webContext1.setParent(rootContext);
    webContext1.register(WebConfig2.class); // configuration class for servlet 1
    ServletRegistration.Dynamic dispatcher2 =
    servletContext.addServlet("dispatcher2", new DispatcherServlet(webContext2));
    dispatcher2.setLoadOnStartup(1);
    dispatcher2.addMapping("/subcontext1");
}

WebConfig1

@Bean
    public ResourceBundleMessageSource configureResourceBundleMessageSource() {
    ResourceBundleMessageSource resource = new ResourceBundleMessageSource();
    resource.setBasename("sampleA");
    return resource;
}

WebConfig2

@Bean
    public ResourceBundleMessageSource configureResourceBundleMessageSource() {
    ResourceBundleMessageSource resource = new ResourceBundleMessageSource();
    resource.setBasename("sampleB");
    return resource;
}