我快崩溃了搞个springMvc 求大神来帮帮忙指导一下我这个新手

纟合沃亻尔白勺扌 2015-09-13 10:21:23

从配置开始吧
/src/main/webapp/WEB-INF/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_2_5.xsd"

         id="WebApp_ID" version="2.5">



    <display-name>spring-mvc-study</display-name>

    

   <!--

		- Location of the XML file that defines the root application context.

		- Applied by ContextLoaderListener.

	-->

    <context-param>

        <param-name>contextConfigLocation</param-name>

        <param-value>classpath:spring/application-config.xml</param-value>

    </context-param>



    <listener>

        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

    </listener>

    

    

    <!--

		- Servlet that dispatches request to registered handlers (Controller implementations).

	-->

    <servlet>

        <servlet-name>dispatcherServlet</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <init-param>

            <param-name>contextConfigLocation</param-name>

            <param-value>/WEB-INF/mvc-config.xml</param-value>

        </init-param>

        <load-on-startup>1</load-on-startup>

    </servlet>

	<!-- 拦截所有请求 -->

    <servlet-mapping>

        <servlet-name>dispatcherServlet</servlet-name>

        <url-pattern>/</url-pattern>

    </servlet-mapping>

	<welcome-file-list>

		<welcome-file>index.jsp</welcome-file>

	</welcome-file-list>

</web-app>

/src/main/webapp/WEB-INF/mvc-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:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"

	xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd

		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">



	<!-- 本配置文件是工名为mvc-dispatcher的DispatcherServlet使用， 提供其相关的Spring MVC配置 -->



	<!-- 启用Spring基于annotation的DI, 使用户可以在Spring MVC中使用Spring的强大功能。 激活 @Required 

		@Autowired,JSR 250's @PostConstruct, @PreDestroy and @Resource 等标注 -->

	<context:annotation-config/>

	

	

	<!-- DispatcherServlet上下文， 只管理@Controller类型的bean， 忽略其他型的bean, 如@Service -->

	<context:component-scan base-package="com.imooc.mvcdemo">

		<context:include-filter type="annotation"

			expression="org.springframework.stereotype.Controller" />

	</context:component-scan>



	<!-- 静态资源处理， css， js， imgs -->

	<mvc:resources mapping="/resources/**" location="/resources/" />

	

	<!-- HandlerMapping, 无需配置， Spring MVC可以默认启动。 DefaultAnnotationHandlerMapping 

		annotation-driven HandlerMapping -->



	<!-- 扩充了注解驱动，可以将请求参数绑定到控制器参数 -->

    <mvc:annotation-driven />



	<!-- 配置ViewResolver。 可以用多个ViewResolver。 使用order属性排序。 InternalResourceViewResolver放在最后。 -->

	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

	        <!-- Example: a logical view name of 'showMessage' is mapped to '/WEB-INF/jsp/showMessage.jsp' -->

	        <property name="prefix" value="/WEB-INF/view/"/>

	        <property name="suffix" value=".jsp"/>

	</bean>

</beans>

/src\main/java/resources/spring.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"

	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">

    

    <!-- Uncomment and add your base-package here:

         <context:component-scan

            base-package="org.springframework.samples.service"/>  -->

    

    <!--启用Spring基于annotation的DI管理  -->

	<context:annotation-config />



	<!-- exclude-filter告诉Spring 不需要管理Controller -->

	<context:component-scan base-package="com.imooc.mvcdemo">

		<context:exclude-filter type="annotation"

			expression="org.springframework.stereotype.Controller" />

	</context:component-scan>

</beans>

controller

[code=java]

package com.imooc.mvcdemo.controller;



import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;



import com.imooc.mvcdemo.model.HelloMvc;

import com.imooc.mvcdemo.service.HelloMvcService;



@Controller

@RequestMapping("/hello")

public class HelloController {

	private static Logger log=LoggerFactory.getLogger(HelloController.class);

	

	private HelloMvcService helloMvcService;



	@Autowired

	public void setHelloMvcService(HelloMvcService helloMvcService) {

		this.helloMvcService = helloMvcService;

	}

	@RequestMapping("/mvc")

	public String helloMVC(Model model){

		HelloMvc helloMvc=helloMvcService.getHelloMvc();

		model.addAttribute(helloMvc);

		return "showMessage";

	}

}

[/code]
dao



package com.imooc.mvcdemo.dao;



import org.springframework.stereotype.Repository;



@Repository

public interface HelloDao {



}

service



package com.imooc.mvcdemo.service;



import org.springframework.stereotype.Service;



import com.imooc.mvcdemo.model.HelloMvc;



public interface HelloMvcService {

	HelloMvc getHelloMvc();

}

service.impl



package com.imooc.mvcdemo.service.impl;



import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;



import com.imooc.mvcdemo.dao.HelloDao;

import com.imooc.mvcdemo.model.HelloMvc;

import com.imooc.mvcdemo.service.HelloMvcService;



public class HelloMvcServiceImpl implements HelloMvcService {

	private HelloDao helloDao;

	public HelloDao getHelloDao() {

		return helloDao;

	}

	@Autowired

	public void setHelloDao(HelloDao helloDao) {

		this.helloDao = helloDao;

	}

	

	public HelloMvc getHelloMvc() {

		// TODO Auto-generated method stub

		return new HelloMvc();

	}





}

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程序老王 2015-09-14

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首先按照扫描来说因为你Service层没有加上标签所以实现类没有在Spring的管理之下这肯定就是不行的啊！ 6楼答案正解

执笔记忆的空白 2015-09-14

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com.imooc.mvcdemo.service.HelloMvcService没注解进来 public class HelloMvcServiceImpl implements HelloMvcService { 这行代码上面加上一个@Service("helloMvcService")

lvyumao555 2015-09-14

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private HelloMvcService helloMvcService;前面加个@Autowired 试试

suciver 2015-09-14

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HelloMvcServiceImpl这个少了@Service,所以他没交给spring管理

tony4geek 2015-09-14

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看看，你的class path路径对不。是否能够找到。

Usher丶AckMan 2015-09-14

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大神说注解没有注入，所以spring扫描不到

qingtingnayongheng 2015-09-14

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没有Spring 注入

迷林 2015-09-13

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没有找到 'helloMvcController' 这个类看看你前台请求的是什么

纟合沃亻尔白勺扌 2015-09-13

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异常信息


[code=java]
严重: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'helloMvcController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void com.imooc.mvcdemo.controller.HelloMvcController.setHelloMvcService(com.imooc.mvcdemo.service.HelloMvcService); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.imooc.mvcdemo.service.HelloMvcService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:834)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537)
	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:667)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:633)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:681)
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:552)
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:493)
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5253)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5543)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1574)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1564)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void com.imooc.mvcdemo.controller.HelloMvcController.setHelloMvcService(com.imooc.mvcdemo.service.HelloMvcService); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.imooc.mvcdemo.service.HelloMvcService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:659)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
	... 29 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.imooc.mvcdemo.service.HelloMvcService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1326)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1072)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:967)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:616)
	... 31 more

严重: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'helloMvcController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void com.imooc.mvcdemo.controller.HelloMvcController.setHelloMvcService(com.imooc.mvcdemo.service.HelloMvcService); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.imooc.mvcdemo.service.HelloMvcService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:834)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537)
	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:667)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:633)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:681)
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:552)
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:493)
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5253)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5543)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1574)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1564)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void com.imooc.mvcdemo.controller.HelloMvcController.setHelloMvcService(com.imooc.mvcdemo.service.HelloMvcService); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.imooc.mvcdemo.service.HelloMvcService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:659)