maven多模块下的spring 自动扫描

我创建的这个项目是maven工程，由一个父模块和四个子模块组成，controller是war包，其他几个模块都是jar包，所有配置文件都放在jslj-controller下的src/main/resources里面

配置文件位置

applicationContext.xml扫描配置

    <!-- 扫描包 -->
    <context:component-scan base-package="cn.jscoin.jslj.*" /> 

我在jslj-controller里面用junit测试，mapper和service的注入都没有问题，

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="classpath*:applicationContext.xml")
public class UserTest {

    @Autowired
    private UserMapper userMapper;

    @Autowired
    private UserService userService;

    @Test
    public void testAdd(){
        User user = new User();
        List<User> userAll = userMapper.queryUserAll(user);
        System.out.println(userAll.size());
    }

    @Test
    public void testService(){
        User user = new User();
        List<User> userAll = userService.queryUserAll(user);
        System.out.println(userAll.size());
    }

} 

但是项目一跑起来就报错，注入失败。提示我不能注入cn.jscoin.jslj.service.UserService
，当时我的@service注解也加了，扫描也配置了

service位置

错误提示

SEVERE: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private cn.jscoin.jslj.service.UserService cn.jscoin.jslj.controller.UserController.userService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [cn.jscoin.jslj.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.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1202)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:762)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    at javax.servlet.GenericServlet.init(GenericServlet.java:160)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193)
    at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:865)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:136)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:722)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private cn.jscoin.jslj.service.UserService cn.jscoin.jslj.controller.UserController.userService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [cn.jscoin.jslj.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.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:558)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    ... 34 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [cn.jscoin.jslj.service.UserService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1308)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1054)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:949)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:530)
    ... 36 more

service注解应该加在impl才可以，接口上不用加

把你的controller代码和service代码贴出来看看

controller

@Controller
@RequestMapping("/user")
public class UserController {

    @Autowired
    private UserService userService;

    @RequestMapping("/index.do")
    public String userIndex(Model model){

        List<User> user = userService.queryUserAll(new User());
        System.out.println(user.size());

        return "/User/index";
    }

}

service代码

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserMapper userMapper;

    @Override
    public List<User> queryUserAll(User user) {

        return userMapper.queryUserAll(user);

    }

}

你可以试一下把UserService配置到配置文件里，看看能不能注入成功，如果可以，就说明，你的自动扫描包写的有问题。

你把扫描的目录的 * 改为service试试

你的自动注入没有起作用，可以试试在配置文件里面加上一句，
要是还是不行，用@resource试试，或者用getter和setter进行注入。

context:annotation-config/
在你扫描的上面加上这个

--------- context:annotation-config/ -----------------
这个

没办法 自动把<>给吞了

把web.xml 和 spring mvc的xml文件发出来看看

web.xml

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext-*.xml</param-value>
</context-param>

<!-- 配置spring监听器 -->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- springmvc入口-控制中心 -->
<servlet>
    <servlet-name>console</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <!-- 默认会找WEB-INF下的/[servlet名称]-servlet.xml -->
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:springmvc-console.xml</param-value>
    </init-param>
</servlet>

<servlet-mapping>
    <servlet-name>console</servlet-name>
    <url-pattern>*.do</url-pattern>
</servlet-mapping>

spring mvc。xml

<!-- 扫描包 -->
<context:annotation-config/>  
<context:component-scan base-package="cn.jscoin.jslj.controller" />

<!-- 处理器 映射器 适配器 -->
<mvc:annotation-driven />

<!-- html视图解析器 必须先配置freemarkerConfig,注意html是没有prefix前缀属性的-->
<bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">  
    <property name="templateLoaderPath">  
        <value>/WEB-INF/console/</value>  
    </property>  
</bean>  
 <bean id="htmlviewResolver"  
    class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">  
    <property name="suffix" value=".html" /> 
    <property name="order" value="1"></property> 
    <property name="contentType" value="text/html;charset=UTF-8"></property>         
</bean>  

 <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext-*.xml</param-value>
</context-param>

这个配置有问题啊，你spring的启动文件名就是applicationContext.xml啊