具有全局上下文上下文的Spring MVC注释：组件扫描？ [英] Spring MVC Annotations with Global Context context:component-scan?

问题描述

我有一个带有servlet-namespring-mvc的spring dispatcher servlet。 spring-mvc-servlet.xml如下所示：

I have a spring dispatcher servlet with servlet-name "spring-mvc". The spring-mvc-servlet.xml appears as follows:

<bean id="viewResolver"
    class="org.springframework.web.servlet.view.UrlBasedViewResolver">
    <property name="viewClass" 
        value="org.springframework.web.servlet.view.JstlView"/>
    <property name="prefix" value="/WEB-INF/jsp/"/>
    <property name="suffix" value=".jsp"/>
</bean>

<bean 
    class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>

<bean 
    class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>

在WEB-INF / annotation-context.xml中的文件中，我定义了注释扫描程序。我加载了所有带注释的类，其他spring bean可以加载它们。

In a file in WEB-INF/annotation-context.xml I have the annotation scanner defined. All of my annotated classes are loaded and other spring beans are able to load them ok.

但是，路径映射不能从spring-mvc开始工作。如果我将context-scanner复制到spring-mvc-servlet.xml，那么它们就可以工作。

However, the path mappings do not work from spring-mvc. If I copy the context-scanner to spring-mvc-servlet.xml, then they work.

spring-mvc-servlet.xml是否可以引用定义的bean在全球春季水平？

Is it possible for spring-mvc-servlet.xml to reference beans defined at the global spring level?

推荐答案

你可以按层次结构加载上下文，以便在 annotation-context.xml中描述上下文成为Spring MVC上下文的父级。后者将能够访问前者中定义的所有bean。

You can load your contexts hierarchically so that context described in annotation-context.xml becomes a parent of your Spring MVC context. The latter will then be able to access all the beans defines in the former.

Spring文档描述了几种方法。例如，在 web.xml 中：

Spring documenation describes several ways to do it. For example, in your web.xml:

// load parent context
<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>/WEB-INF/annotation-context.xml</param-value>
</context-param>

<listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

// load Spring MVC context
<servlet>
  <servlet-name>spring-mvc</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <load-on-startup>1</load-on-startup>
</servlet>

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