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springmvc No mapping found for HTTP request with URI in Dispatc

項目是使用spring MVC

(1)在浏覽器中通路,背景總報錯:

Java代碼  

springmvc No mapping found for HTTP request with URI in Dispatc

  1. No mapping found for HTTP request with URI [/exam3/welcome] in DispatcherServlet with name 'spring2'  

 查了好半天,才發現是controller 沒有掃描到。

我是使用的注解。

spring mvc配置檔案如下:

Xml代碼  

springmvc No mapping found for HTTP request with URI in Dispatc
  1. <?xml version="1.0" encoding="UTF-8"?>  
  2. <beans xmlns="http://www.springframework.org/schema/beans"  
  3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"  
  4.     xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"  
  5.     xmlns:mvc="http://www.springframework.org/schema/mvc"  
  6.     xsi:schemaLocation="http://www.springframework.org/schema/beans  
  7.            http://www.springframework.org/schema/beans/spring-beans-3.2.xsd  
  8.             http://www.springframework.org/schema/context  
  9.            http://www.springframework.org/schema/context/spring-context-3.2.xsd  
  10.            http://www.springframework.org/schema/aop  
  11.            http://www.springframework.org/schema/aop/spring-aop-3.2.xsd  
  12.            http://www.springframework.org/schema/tx   
  13.            http://www.springframework.org/schema/tx/spring-tx-3.2.xsd  
  14.            http://www.springframework.org/schema/mvc   
  15.            http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"  
  16.            >  
  17.     <!-- HandlerMapping -->  
  18.     <bean  
  19.         class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" />  
  20.     <!-- HandlerAdapter -->  
  21.         class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" />  
  22.     <!-- ViewResolver -->  
  23.         class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
  24.         <property name="viewClass"  
  25.             value="org.springframework.web.servlet.view.JstlView" />  
  26.         <property name="prefix" value="/WEB-INF/jsp/" />  
  27.         <property name="suffix" value=".jsp" />  
  28.     </bean>  
  29. <mvc:annotation-driven />  
  30. <!-- 處理器 -->    
  31. <!-- <bean name="/hello" class="com.mvc.jn.controller.HelloWorldController"/> -->  
  32. <context:component-scan base-package="com"/>  
  33. </beans>  

 controller 的目錄結構如下:

springmvc No mapping found for HTTP request with URI in Dispatc

(2)這個問題解決之後,又報錯:

No mapping found for HTTP request with URI [/exam3/WEB-INF/jsp/welcome.jsp] in DispatcherServlet with name 'spring2'

結果發現是web.xml配置得有問題,下面是有問題的:

springmvc No mapping found for HTTP request with URI in Dispatc
  1. <servlet>  
  2.         <servlet-name>spring2</servlet-name>  
  3.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
  4.         <load-on-startup>1</load-on-startup>  
  5.     </servlet>  
  6.     <servlet-mapping>  
  7.         <url-pattern>/*</url-pattern>  
  8.     </servlet-mapping>  

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