如何访问< context-param> Spring Controller中web.xml的值 [英] How to access <context-param> values of web.xml in Spring Controller

问题描述

我正在如下所示在我的应用程序的web.xml中定义一个上下文参数

I am defining a context-param in web.xml of my application as below

<context-param>
    <param-name>baseUrl</param-name>
    <param-value>http://www.abc.com/</param-value>
</context-param>

现在我想在我的控制器中使用baseUrl的值，所以我如何访问此.....?

Now i want to use the value of baseUrl in my Controller, so how i can access this.....?

请告诉我是否有人知道这件事.

Please tell me if anyone knows about this.

提前谢谢！

推荐答案

如果您使用的是Spring 3.1+，则无需执行任何特殊操作即可获取该属性.只需使用熟悉的$ {property.name}语法即可.

If you are using Spring 3.1+, you don't have to do anything special to obtain the property. Just use the familiar ${property.name} syntax.

例如，如果您拥有:

<context-param>
    <param-name>property.name</param-name>
    <param-value>value</param-value>
</context-param>

在web.xml或

<Parameter name="property.name" value="value" override="false"/>

在Tomcat的context.xml

然后您可以按以下方式访问它:

then you can access it like:

@Component
public class SomeBean {

   @Value("${property.name}")
   private String someValue;
}

之所以可行，是因为在Spring 3.1+中，部署到Servlet环境时注册的环境是StandardServletEnvironment ，它将所有与Servlet上下文相关的属性添加到不断出现的Environment.

This works because in Spring 3.1+, the environment registered when deploying to a Servlet environment is the StandardServletEnvironment that adds all the servlet context related properties to the ever present Environment.

这篇关于如何访问< context-param> Spring Controller中web.xml的值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！