今天在嘗試搭建一下SSM框架的時候，在webapp目錄下有一個MyJsp.jsp。部署到伺服器後,能夠正常訪問，然後我去寫了一個頁面，通過controller進行訪問，但是死活不出來，而且提示一個404頁面。

我看了下控制檯DEBUG的輸出：No mapping found for HTTP request with URI [/Monitor/login.action] in DispatcherServlet with name 'springmvc'，說沒有找到這個對映，

DEBUG [http-apr-8080-exec-3] - Bound request context to thread: 
 
[email protected]
DEBUG [http-apr-8080-exec-3] - DispatcherServlet with name 'springmvc' processing GET request for [/Monitor/login.action]
DEBUG [http-apr-8080-exec-3] - Testing handler map [org.springframework[email protected]13fa3263] in DispatcherServlet with name 'springmvc'
DEBUG [http-apr-8080-exec-3] - Looking up handler method for path /login.action
DEBUG [http-apr-8080-exec-3] - Did not find handler method for [/login.action]
DEBUG [http-apr-8080-exec-3] - Testing handler map [or
 
[email protected]30facaa5] in DispatcherServlet with name 'springmvc'
DEBUG [http-apr-8080-exec-3] - No handler mapping found for [/login.action]
 WARN [http-apr-8080-exec-3] - No mapping found for HTTP request with URI [/Monitor/login.action] in DispatcherServlet with name 'springmvc'
DEBUG [http-apr-8080-exec-3] - Cleared thread-bound request context: 
 
[email protected]
DEBUG [http-apr-8080-exec-3] - Successfully completed request
DEBUG [http-apr-8080-exec-3] - Publishing event in WebApplicationContext for namespace 'springmvc-servlet': ServletRequestHandledEvent: url=[/Monitor/login.action]; client=[127.0.0.1]; method=[GET]; servlet=[springmvc]; session=[9358E9BE84EAA25B3232FC982B81825F]; user=[null]; time=[27ms]; status=[OK]
DEBUG [http-apr-8080-exec-3] - Publishing event in Root WebApplicationContext: ServletRequestHandledEvent: url=[/Monitor/login.action]; client=[127.0.0.1]; method=[GET]; servlet=[springmvc]; session=[9358E9BE84EAA25B3232FC982B81825F]; user=[null]; time=[27ms]; status=[OK]

然後我就百度了一陣，沒有找到解決方法。然後我就仔細看了一下DEBUG的輸出，好像發現是因為springmvc的xml裡沒有找到controller的對映的問題。仔細想了下是不是因為我只在applicationContext.xml裡面配置了自動掃描沒有再springmvc.xml裡沒有自動掃描的原因。原配置如下：

springmvc.xml：

<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

	<mvc:annotation-driven />

	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp" />
		<property name="suffix" value=".jsp" />
	</bean>

</beans>

applicationContext.xml：

<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

	<!-- 自動掃描註解 -->
	<context:component-scan base-package="com.xytx.monitor" />

</beans>

然後我就在springmvc.xml裡面加了一個專門用來掃描存放controller的包：

<context:component-scan base-package="com.xytx.monitor.controller" />