500 java.lang.IllegalStateException: No WebApplicationContext found: not in a DispatcherServlet req

最新推荐文章于 2025-03-13 16:37:49 发布

皮蛋:-P

最新推荐文章于 2025-03-13 16:37:49 发布

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文章标签： servlet 前端 java

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上面是浏览器报错，下面是idel报的
20-Oct-2022 19:07:38.611 严重 [http-nio-80-exec-27] org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag No WebApplicationContext found: not in a DispatcherServlet request and no ContextLoaderListener registered?
java.lang.IllegalStateException: No WebApplicationContext found: not in a DispatcherServlet request and no ContextLoaderListener registered?
at org.springframework.web.servlet.support.RequestContext.<init>(RequestContext.java:219)
at org.springframework.web.servlet.support.JspAwareRequestContext.<init>(JspAwareRequestContext.java:63) 省略后面。。。。

把问号前面翻译过来就是：（且未注册ContextLoaderListener？）

org.springframework.web.servlet.tags.RequestContextAwareTag。doStartTag未找到WebApplicationContext：未在DispatcherServlet请求中，且未注册ContextLoaderListener？

然后就查了怎么注册ContextLoaderListener

找到了如下代码：(写在web.xml 里面)

 <!-- contextConfigLocation参数用来指定Spring的配置文件 needed for ContextLoaderListener -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:springmvc-servlet.xml</param-value>
  </context-param>

  <!-- 配置spring核心监听器 Bootstraps the root web application context before servlet initialization -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

这时运行起来已经可以了，但是<web-app>标签红色波浪也不影响咯有知道的小伙伴吗求告知！

完整xml如下

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>
      org.springframework.web.servlet.DispatcherServlet
    </servlet-class>

    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>

  </servlet>

  <!-- contextConfigLocation参数用来指定Spring的配置文件 needed for ContextLoaderListener -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:springmvc-servlet.xml</param-value>
  </context-param>

  <!-- 配置spring核心监听器 Bootstraps the root web application context before servlet initialization -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

</web-app>