No mapping found for HTTP request with URI错误，找了一天了也没解决

[偎巍]

刚学spring mvc，按照介绍写的代码，一直报这个错误，component-scan加了，mvc:annotation-driven加了，mvc:default-servlet-handler也加了，就是不行，还请各位前辈帮看下。
web.xml配置：

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>
  <servlet>
  	<servlet-name>hellospring</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<init-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>classpath*:WEB-INF/hellospring-config.xml</param-value>
  	</init-param>
  	<load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
  	<servlet-name>hellospring</servlet-name>
  	<url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

hellospring-config.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:mvc="http://www.springframework.org/schema/mvc" 
     xsi:schemaLocation="http://www.springframework.org/schema/beans 
     http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
     http://www.springframework.org/schema/context 
     http://www.springframework.org/schema/context/spring-context-4.2.xsd
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd ">
	
	<context:component-scan base-package="com.hellospring.web" />
	<mvc:annotation-driven />
	<mvc:default-servlet-handler/>
	
	<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping" />
	<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter" />
	
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" />

	
</beans>

HelloController

package com.hellospring.web.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

@Controller
public class HelloController extends AbstractController {
	
	//define log
	private static final Logger logger = Logger.getLogger(HelloController.class.getName());

	@Override
	@RequestMapping(value="/hello")
	protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
		// TODO Auto-generated method stub
		logger.info("hello controller start....");
		ModelAndView mvc = new ModelAndView();
		mvc.addObject("message", "hello spring");
		mvc.setViewName("/WEB-INF/hello/welcome.jsp");
		return mvc;
	}

}

[Z. ZHANG]

web.xml配置的classpath*:WEB-INF/hellospring-config.xml 你多加了个*号

[baidu_27266745]

contextConfigLocation的路径直接写WEB-INF/hellospring-config.xml，配置文件放在WEB-INF下，应该不用加“classpath:”前缀。classpath与classpath*的区别：http://perfy315.iteye.com/blog/2009258

[xuanfengshizi]

前台提交的数据不能有空 而且 action都配置为多例模式就可以了

[偎巍]

谢谢各位，特别是baidu_27266745，问题已经解决，现总结下： 1：如果hellospring-config.xml文件和web.xml文件一样，放在WEB-INF目录下，配置好下： <init-param> <param-name>contextConfigLocation</param-name> <param-value>WEB-INF/hellospring-config.xml</param-value> </init-param> 配置中不用classpath. 2:如果hellospring-config.xml文件放在classes目录子目录webconfig下，配置好下： <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:webconfig/hellospring-config.xml</param-value> </init-param> 当然，也可以这样子： <init-param> <param-name>contextConfigLocation</param-name> <param-value>WEB-INF/classes/webconfig/hellospring-config.xml</param-value> </init-param> 而classpath*，表示不只当前classes目录下要找，jar包其它工程的classes也要找，一般尽量不用classpath*，我最开始以为classpath*会在classes目录以及子目录里找是错误的。 还有，配置里，<context:component-scan base-package="com.hellospring.web" />这个是起作用的，没有会报错，其它两个<mvc:annotation-driven /><mvc:default-servlet-handler/>可以没有。