如何在同一屏幕上为不同的应用程序上下文获取不同的 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），它为两个上下文使用相同的屏幕，但我在屏幕字段上显示了不同的标签名称。

资源包如下。

对于上下文 A，sample.code=Text From Application A 进入 sampleA.properties

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

而且，我可以将上下文与会话属性区分开来。在这种情况下，我如何覆盖Spring MessageTag 并阅读有关上下文集的消息？

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

感谢您的帮助。

Answer 1

为不同的servlet上下文配置单独注册ResourceBundleMessageSource

例如。在您的 AbstractAnnotationConfigDispatcherServletInitializer 上

@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;
}