SpringMVC Helloworld注解和404问题

　　最近学习的SpringＭＶＣ刚开始用普通配置，一切正常。复制项目变为注解形式的时候一直报４０４错误，非常头疼，确定自己所有配置都是正确之后还是４０４，于是新建项目，一切都变正常，可能是复制项目出现了问题，可是修改了项目的根目录还是４０４的，具体问题不得知，遇到４０４的朋友们也要注意。以下是Ｈｅｌｌｏｗｏｒｌｄ的示例：

项目目录结构：

记得导入相应的ｊａｒ包，切记不要忘了ｃｏｍｍｍｏｎ－ｌｏｇｇｉｎｇ包，否则运行报错。

ｗｅｂ．ｘｍｌ

<?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" 
id="WebApp_ID" version="3.0">
  <display-name>SpringMVC</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
   <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
        	<param-name>contextConfigLocation</param-name>
        	<param-value>/WEB-INF/springmvc-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>
</web-app>

ｓｐｒｉｎｇｍｖｃ－ｓｅｒｖｌｅｔ．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:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="
	http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
	http://www.springframework.org/schema/mvc
	http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-4.2.xsd">

	<context:component-scan base-package="org.fkit.controller"/>
	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix">
			<value>/WEB-INF/content/</value>
		</property>
		<property name="suffix">
			<value>.jsp</value>
		</property>
	</bean>
	<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
	<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
	</beans>

ＨｅｌｌｏＣｏｎｔｒｏｌｌｅｒ类

package org.fkit.controller;


import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class HelloController {
	@RequestMapping(value="/hello")
	public String hello(Model model){
		model.addAttribute("message","Hello Annotation");
		return "hello";
 }
}

自己新建一个ｈｅｌｌｏ．ｊｓｐ页面
运行ｔｏｍｃａｔ输入ｈｔｔｐ：／／ｌｏｃａｌｈｏｓｔ：８０８０／Ａｎｎｏｔａｔｉｏｎ／ｈｅｌｌｏ即可。