spring mvc+spring+mybatis自动注入

[To_Young]

这是我的UsertblContorolle

package com.cn.ykp.controller;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import com.cn.ykp.bean.Usertbl;
import com.cn.ykp.service.UserService;
@Controller
public class UsertblContoroller {
	@Autowired
	private UserService userService;
	@RequestMapping(value="/login.do", method = RequestMethod.POST)
	public String Login(String username,String password){
		 Usertbl user =  userService.Select(username);
		 if(password.equals(user.getPassword())){
			 return "index";
		 }
		 return "";
	}
}

这是我的dao

package com.cn.ykp.dao;

import org.springframework.stereotype.Repository;

import com.cn.ykp.bean.Usertbl;

@Repository
public interface UsertblMapper {
    int deleteByPrimaryKey(Integer id);

    int insert(Usertbl record);

    int insertSelective(Usertbl record);

    Usertbl selectByPrimaryKey(String name);

    int updateByPrimaryKeySelective(Usertbl record);

    int updateByPrimaryKey(Usertbl record);
}

这是我的service

package com.cn.ykp.service;

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

import com.cn.ykp.bean.Usertbl;
import com.cn.ykp.dao.UsertblMapper;

@Service
public class UserService {
	@Autowired
	private UsertblMapper usertblMapper;
	
	public Usertbl Select(String name){
		return usertblMapper.selectByPrimaryKey(name);
	}
}

这是我的spring-mybatis.xml

	 
     <!-- 引入属性文件 -->
     <context:property-placeholder location="classpath:jdbc.properties" />
     <!-- 自动扫描(自动注入) -->
     <context:component-scan base-package="com.cn.ykp.*" />
 <!-- 配置数据源-->  
     <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
		destroy-method="close">
		<property name="driverClass" value="${db.driver}" />
		<property name="jdbcUrl" value="${db.url}" />
		<property name="user" value="${db.username}" />
		<property name="password" value="${db.password}" />
		<property name="minPoolSize" value="1" />
		<property name="maxPoolSize" value="20" />
		<property name="maxIdleTime" value="1800" />
		<property name="acquireIncrement" value="2" />
		<property name="maxStatements" value="0" />
		<property name="initialPoolSize" value="2" />
		<property name="idleConnectionTestPeriod" value="1800" />
		<property name="acquireRetryAttempts" value="30" />
		<property name="breakAfterAcquireFailure" value="true" />
		<property name="testConnectionOnCheckout" value="false" />
	</bean> 
	<!-- 创建工厂 并自动寻找 Mapperxml-->
 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
     <property name="dataSource" ref="dataSource" />  
     <!-- <property name="configLocation" value="classpath:mybatis-config.xml"></property> -->
     <property name="mapperLocations" value="classpath:com/cn/ykp/dao/xml/*.xml" />  
 </bean>  
 <!-- 自动查找类路径下的映射器并自动将它们创建成MapperFactoryBean。不用一个一个创建了 -->
	<bean id="MapperFactoryBean" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.cn.ykp.dao" />
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
	</bean>
	
		<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>
	
<!-- 配置事物的注解方式注入 -->
	<tx:annotation-driven transaction-manager="transactionManager" />
 
 </beans> 

这是我的spring-mvc.xml

 
  <mvc:annotation-driven>  
        <mvc:message-converters>  
            <bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter" />  
            <bean class="org.springframework.http.converter.FormHttpMessageConverter" />  
            <bean class="org.springframework.http.converter.xml.SourceHttpMessageConverter" />  
            <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />  
        </mvc:message-converters>  
    </mvc:annotation-driven>  
 <context:component-scan base-package="com.cn.ykp.controller" />
  <context:component-scan base-package="com.cn.ykp">   
            <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />   
            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" />   
    </context:component-scan>   
    <aop:aspectj-autoproxy proxy-target-class="true">  
        <aop:include name="controllerAspect"/>  
    </aop:aspectj-autoproxy> 
 
 
 <bean
	class="org.springframework.web.servlet.view.InternalResourceViewResolver"
	p:prefix="/WEB-INF/views/" p:suffix=".jsp" />
 
 		<!-- 设置返回数据类型是json格式 -->
	<bean id="mappingJacksonHttpMessageConverter"
		class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
		<property name="supportedMediaTypes">
			<list>
				<value>application/json;charset=UTF-8</value>
			</list>
		</property>
	</bean>
	<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">      
        <property name="messageConverters">      
            <list> 
                <ref bean="mappingJacksonHttpMessageConverter" />      
            </list>      
        </property>      
    </bean>
    <!-- 带参数必须添加这个 -->
    <mvc:annotation-driven/> 

这是报的错误

2016-12-29 21:01:22,308 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] ERROR [org.springframework.web.servlet.DispatcherServlet] - Context initialization failed
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'usertblContoroller': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.cn.ykp.service.UserService com.cn.ykp.controller.UsertblContoroller.userService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.cn.ykp.service.UserService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:442)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458)
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339)
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306)
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127)
	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1282)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1195)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1085)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5349)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5641)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
	at org.apache.catalina.core.StandardContext.reload(StandardContext.java:4119)
	at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:425)
	at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1341)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1542)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1552)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1552)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1520)
	at java.lang.Thread.run(Unknown Source)

[双子叶]

报错原因是你写的service和dao注解没有被扫描解析。 1.你将spring-mvc.xml里面的 <context:component-scan base-package="com.cn.ykp.controller" /> <context:component-scan base-package="com.cn.ykp"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" /> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" /> </context:component-scan> 修改为 <context:component-scan base-package="com.cn.ykp"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" /> </context:component-scan> 2.没有看到你的web.xml的配置，应该还有一个applicationContext.xml（或者其他名）的spring配置文件 你在这个文件里面配置 <context:component-scan base-package="com.tgb"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> 你修改一下试试，应该ok的

[双子叶]

引用 1 楼 shzy1988 的回复:

报错原因是你写的service和dao注解没有被扫描解析。 1.你将spring-mvc.xml里面的 <context:component-scan base-package="com.cn.ykp.controller" /> <context:component-scan base-package="com.cn.ykp"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" /> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" /> </context:component-scan> 修改为 <context:component-scan base-package="com.cn.ykp"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" /> </context:component-scan> 2.没有看到你的web.xml的配置，应该还有一个applicationContext.xml（或者其他名）的spring配置文件 你在这个文件里面配置 <context:component-scan base-package="com.tgb"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> 你修改一下试试，应该ok的

上文有个错误，base-package="com.tgb"应该修改为你的包路径，这个我copy我的。你注意一下。

[GrayHJX]

看报错信息是service没被扫描到 你试试加上这句 <context:component-scan base-package="com.cn.ykp.*.service" />

[尼古拉斯-全蛋]

[To_Young]

已经解决了，web.xml,要设置监听器