http://localhost:8080/o2o/superadmin/listarea 404

Question

警告: No mapping found for HTTP request with URI [/o2o/superadmin/listarea] in DispatcherServlet with name ‘spring-dispatcher’

Answer 1

翔仔 2018-10-17 22:35:53

同学好，你贴的是一个警告信息，并非错误，应该是哪里配置出问题了，主要对比下spring-web.xml,web.xml以及对应controller的配置

spring-web.xml

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<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"     xmlns:mvc="http://www.springframework.org/schema/mvc"     xsi:schemaLocation="http://www.springframework.org/schema/beans     http://www.springframework.org/schema/beans/spring-beans.xsd     http://www.springframework.org/schema/context     http://www.springframework.org/schema/context/spring-context.xsd     http://www.springframework.org/schema/mvc     http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">     <!-- 配置SpringMVC -->     <!-- 1.开启SpringMVC注解模式 -->     <mvc:annotation-driven />       <!-- 2.静态资源默认servlet配置 (1)加入对静态资源的处理：js,gif,png (2)允许使用"/"做整体映射 -->     <mvc:resources mapping="/resources/**" location="/resources/" />     <mvc:default-servlet-handler />       <!-- 3.定义视图解析器 -->     <bean id="viewResolver"         class="org.springframework.web.servlet.view.InternalResourceViewResolver">         <property name="prefix" value="/WEB-INF/html/"></property>         <property name="suffix" value=".html"></property>     </bean>     <!-- 文件上传解析器 -->     <bean id="multipartResolver"         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">         <property name="defaultEncoding" value="utf-8"></property>         <!-- 1024 * 1024 * 20 = 20M -->         <property name="maxUploadSize" value="20971520"></property>         <property name="maxInMemorySize" value="20971520"></property>     </bean>       <!-- 4.扫描web相关的bean -->     <context:component-scan base-package="com.imooc.o2o.web" /> </beans>

这部分看看base-package有没有设置对

web.xml

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<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee                       http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"     version="3.1" metadata-complete="true">     <display-name>Archetype Created Web Application</display-name>     <welcome-file-list>         <welcome-file>aaa.jsp</welcome-file>         <welcome-file>index.jsp</welcome-file>     </welcome-file-list>     <servlet>         <servlet-name>spring-dispatcher</servlet-name>         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>         <init-param>             <param-name>contextConfigLocation</param-name>             <param-value>classpath:spring/spring-*.xml</param-value>         </init-param>     </servlet>     <servlet-mapping>         <servlet-name>spring-dispatcher</servlet-name>         <!-- 默认匹配所有的请求 -->         <url-pattern>/</url-pattern>     </servlet-mapping> </web-app>

对应controller的路径还有对应的标签比如@RequestMapping @ResponseBody @Controller之类的记得加上