No mapping found for HTTP request with URI [/zjic] in DispatcherServlet
2021-08-08 11:54:59

最近做项目 出现了前台访问出现404 

控制台出现 No mapping found for HTTP request with URI [/zjic] in DispatcherServlet

web.xml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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
  <display-name>zjic</display-name>

  <servlet>
    <servlet-name>zjic</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  
  <servlet-mapping>
    <servlet-name>zjic</servlet-name>

    <url-pattern>/*</url-pattern>
  </servlet-mapping>
  
  <context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/zjic-servlet.xml</param-value>
	</context-param>


  <listener>
  		<listener-class>
  			 org.springframework.web.context.ContextLoaderListener
  		</listener-class>
 	</listener>
  
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
    
  </welcome-file-list>
  
  


<!-- Session超时  -->
<session-config>
  <session-timeout>-1</session-timeout>
</session-config>
</web-app>

最终找到原因 把

<servlet-mapping>
    <servlet-name>zjic</servlet-name>

    <url-pattern>/*</url-pattern>
  </servlet-mapping>

改为

<servlet-mapping>
    <servlet-name>zjic</servlet-name>

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

即/* 去掉*  可以访问jsp

但是发现无法访问静态资源 很郁闷

一月 25, 2016 12:57:41 上午 org.springframework.web.servlet.DispatcherServlet noHandlerFound
警告: No mapping found for HTTP request with URI [/Extjs5SSM/lib/js/app/app.js] in DispatcherServlet with name 'extjs'
一月 25, 2016 12:57:41 上午 org.springframework.web.servlet.DispatcherServlet noHandlerFound
警告: No mapping found for HTTP request with URI [/Extjs5SSM/lib/js/ext-5.1.0/ext-all.js] in DispatcherServlet with name 'extjs'
等等

参考 http://blog.163.com/zhangmihuo_2007/blog/static/27011075201453044959574?suggestedreading

解决了这个问题：

静态资源都在lib下面

因此在spring配置文件中加入

	<!-- 静态资源访问 -->
<mvc:resources location="/lib/" mapping="/lib/**"/>

只需要映射webroot 下一层子目录即可

如果有多个 可以写多个mvc:resources

解决了这个问题

此时.do 访问可能出现404