从Spring Web应用程序检索Servlet上下文路径 [英] Retrieving the servlet context path from a Spring web application

问题描述

我希望能够动态从服务Spring bean .

之所以这样做，是因为我想在将要发送给网站用户的电子邮件中使用此值.

The reason for this is that I want to use this value in email that are going to be sent to users of the website.

虽然从Spring MVC控制器执行此操作非常容易，但从Service Bean执行此操作并不是那么明显.

While it would be pretty easy to do this from a Spring MVC controller, it is not so obvious to do this from a Service bean.

有人可以建议吗?

附加要求:

我想知道是否没有在应用程序启动时检索上下文路径并使我的所有服务都可随时获取的路径?

I was wondering if there wasn't a way of retrieving the context path upon startup of the application and having it available for retrieval at all time by all my services?

推荐答案

如果使用ServletContainer> = 2.5，则可以使用以下代码获取ContextPath:

If you use a ServletContainer >= 2.5 you can use the following code to get the ContextPath:

import javax.servlet.ServletContext;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component

@Component
public class SpringBean {

    @Autowired
    private ServletContext servletContext;

    @PostConstruct
    public void showIt() {
        System.out.println(servletContext.getContextPath());
    }
}

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