expected at least 1 bean which qualifies as autowire candidate. 应该是没有创建bean?

小白学中跪求maven ssm
Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.service.UserService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}No qualifying bean of type 'com.service.UserService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}```
package com.controller;import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;import com.pojo.UserCustom;
import com.service.UserService;@Controller
@RequestMapping("/user")
public class UserController {  @Autowired
private UserService userService; @RequestMapping("/queryUser")
public ModelAndView queryUser() throws Exception {
// 调用service
List<UserCustom> userList = userService.findUserList(null); // 返回ModelAndView
ModelAndView modelAndView = new ModelAndView();
modelAndView.addObject("userList", userList);
// 指定视图
modelAndView.setViewName("user/User");
return modelAndView;

}
```
package com.service;import java.util.List;
import com.pojo.UserCustom;
import com.pojo.UserQueryVo;public interface UserService {
public List<UserCustom> findUserList(UserQueryVo userQueryVo) throws Exception;
}```
package com.service.impl;import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import com.mapper.UserMapperCustom;
import com.pojo.UserCustom;
import com.pojo.UserQueryVo;
import com.service.UserService;@Service("userService")
public class UserServiceImpl implements UserService {  @Autowired
private UserMapperCustom userMapperCustom; @Override
public List<UserCustom> findUserList(UserQueryVo userQueryVo)
throws Exception {
// TODO Auto-generated method stub
return userMapperCustom.findUserList(userQueryVo);
}}```
跟着网上学的包装类```
package com.pojo;public class UserCustom  extends User{}``````
package com.pojo;public class UserQueryVo {
//包装查询条件
private User user;
private UserCustom userCustom;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public UserCustom getUserCustom() {
return userCustom;
}
public void setUserCustom(UserCustom userCustom) {
this.userCustom = userCustom;
}}
```
xml
```
<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"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-3.2.xsd 
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd "> <!-- 加载配置文件 -->
<context:property-placeholder location="classpath:db.properties" /> <!-- 数据源，使用dbcp -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${mysql.driver}" />
<property name="url" value="${mysql.url}" />
<property name="username" value="${mysql.username}" />
<property name="password" value="${mysql.password}" />
<property name="maxActive" value="30" />
<property name="maxIdle" value="5" />
</bean>
<!-- sqlSessinFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 数据源 -->
<property name="dataSource" ref="dataSource" />
<!-- 加载mybatis的配置文件 -->
<property name="configLocation" value="classpath:com/mybatis/mybatis.xml" />
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 指定扫描的包名 如果扫描多个包，每个包中间使用半角逗号分隔 -->
<property name="basePackage" value="com.mapper" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> </bean>
<!-- mapper配置 MapperFactoryBean：根据mapper接口生成代理对象 <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean"> 
<property name="mapperInterface" value="com.mapper.UserMapper"/> <property 
name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> </bean> -->
<!-- mapper批量扫描，从mapper包中扫描出mapper接口，自动创建代理对象并且在spring容器中注册 遵循规范：将mapper.java和mapper.xml映射文件名称保持一致，且在一个目录 
中 自动扫描出来的mapper的bean的id为mapper类名（首字母小写） -->
</beans>
```
```
<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"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-3.2.xsd 
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd "><!-- service-->
<bean id="UserService" class="com.service.impl.UserServiceImpl"/></beans>
``````
<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"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-3.2.xsd 
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd "><!-- 事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 通知 -->
<tx:advice  id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 传播行为 -->
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="insert*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
<tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
<tx:method name="select*" propagation="SUPPORTS" read-only="true"/>
</tx:attributes>
</tx:advice><!-- AOP -->
<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.service.impl.*.*(..))"/>
</aop:config>
</beans>
```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>
  
  <!-- 加载spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:com.spring.applicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
</listener>
  
  
  
  <!-- springmvc前端控制器 -->
 <servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- contextConfigLocation配置springmvc加载的配置文件（配置处理器映射器、适配器等等） 如果不配置contextConfigLocation，默认加载的是/WEB-INF/servlet名称-serlvet.xml（springmvc-servlet.xml） -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>

<load-on-startup>1</load-on-startup>
</servlet> <servlet-mapping>
<servlet-name>springmvc</servlet-name>
<!-- 第一种：*.action，访问以.action结尾 由DispatcherServlet进行解析 第二种：/，所以访问的地址都由DispatcherServlet进行解析，对于静态文件的解析需要配置不让DispatcherServlet进行解析 
使用此种方式可以实现 RESTful风格的url 第三种：/*，这样配置不对，使用这种配置，最终要转发到一个jsp页面时， 仍然会由DispatcherServlet解析jsp地址，不能根据jsp页面找到handler，会报错。 -->
<url-pattern>*.action</url-pattern>
</servlet-mapping>  
<welcome-file-list>
<welcome-file>/WEB-INF/jsp/1.jsp</welcome-file> </welcome-file-list>
</web-app>