我在网上下载的项目导入之后代码没有错误，但是运行后出现404，HTTP Status 404 ，web.xml文件出错怎么办

Question

出现以下：
HTTP Status 404 - /situation_teaching_systemsd/
type Status reportmessage /situation_teaching_systemsd/description The requested resource is not available.
目录如下：

我在论坛中找到的问题是web.xml文件错误，然后我删除web.xml文件后，不会404了跳出以下：

我想问题应该是web.xml文件出错，但是web.xml文件里面竟然没有context-param配置，web.xml文件如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:jsp="http://java.sun.com/xml/ns/javaee/jsp" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>situation_teaching_systemsd</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>login.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <listener>
    <listener-class>cn.st.listener.SystemListener</listener-class>
  </listener>
  <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*:spring-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <jsp-config>
    <taglib>
      <taglib-uri>http://gx.edu/dTags</taglib-uri>
      <taglib-location>/WEB-INF/tags/dTags.tld</taglib-location>
    </taglib>
  </jsp-config>
  <servlet>
    <servlet-name>uploadfile</servlet-name>
    <servlet-class>cn.st.servlet.UploadVedioServelt</servlet-class>
    <init-param>
      <param-name>imgPath</param-name>
      <param-value>headImage</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>uploadfile</servlet-name>
    <url-pattern>/uploadVedio</url-pattern>
  </servlet-mapping>
  <servlet>
        <servlet-name>DisplayChart</servlet-name>
        <servlet-class>org.jfree.chart.servlet.DisplayChart</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>DisplayChart</servlet-name>
        <url-pattern>/DisplayChart</url-pattern>
    </servlet-mapping>
</web-app>

谁能帮帮wo'y'x

Answer 1

不知道你这个问题是否已经解决, 如果还没有解决的话:

• 看下这篇博客，也许你就懂了，链接：[经验之谈]web项目访问资源报错404

如果你已经解决了该问题, 非常希望你能够分享一下解决方案, 写成博客, 将相关链接放在评论区, 以帮助更多的人 ^-^