我意识到这个问题已被多次询问，但这些答案似乎并没有让我工作。
具有@Autowired字段的类：
@Component
public class SpecialClaimsCaseManager {
@Autowired
private SpecialClaimsCaseRepositoryService<SpecialClaimsCaseDto> service;
public SpecialClaimsCaseManager() {
}
public Collection<SpecialClaimsCase> findAll() {
return convertToSpecialClaimsCase(service.findAll());
}
界面SpecialClaimsCaseRepositoryService
public interface SpecialClaimsCaseRepositoryService<C extends SpecialClaimsCaseDto> {
//Some method signatures, not relevant
实现类（应注入的内容）
@Service("specialClaimsCaseRepositoryService")
public class SpecialClaimsCaseRepositoryServiceImpl implements SpecialClaimsCaseRepositoryService<SpecialClaimsCaseDto> {
//Some method implementations, not relevant
mvcDispatcher.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/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="com.redacted.sch"/>
<mvc:resources mapping="/resources/**" location="/resources/" />
<mvc:annotation-driven />
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>SpecialClaimsHandling</display-name>
<!-- Spring Configuration Files -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
WEB-INF/application-security.xml
classpath*:sch_model_spring.xml
</param-value>
</context-param>
<!-- Spring Security Filters -->
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>
org.springframework.web.filter.DelegatingFilterProxy
</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- Spring Listeners -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- MVC Filter -->
<servlet>
<servlet-name>mvcDispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvcDispatcher</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<!-- Session Configuration -->
<session-config>
<session-timeout>5</session-timeout>
</session-config>
</web-app>
sch_model_spring.xml（在另一个项目中）
<?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:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan base-package="com.redacted.sch.model"/>
<tx:annotation-driven />
<tx:jta-transaction-manager />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.ibm.db2.jcc.DB2Driver" />
<property name="url" value="redacted" />
<property name="username" value="redacted" />
<property name="password" value="redacted" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="schManager" />
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
</beans>
完整堆栈跟踪（因为它很长）http://fpaste.org/116696/14049194/
因此，正如我们所看到的，启用了mvc：annotation-driven，并启用了自动装配。如果我理解正确（我可能不会，对Spring来说很新），这应该是我所需要的。 SpecialClaimsCaseRepositoryService是一个接口，如果这很重要，虽然我认为不应该这样，@Autowiring在另一个用@Controller注释的类中工作正常。
感谢您的帮助！
答案 0 :(得分：3)
您将从堆栈跟踪中注意到，在初始化ContextLoaderListener加载的根应用程序上下文的过程中发生了异常。这取自
<!-- Spring Configuration Files -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
WEB-INF/application-security.xml
classpath*:sch_model_spring.xml
</param-value>
</context-param>
在这两个中，你正在扫描
<context:component-scan base-package="com.redacted.sch.model"/>
但不是其中一个bean所需的com.redacted.sch.service...包。
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.redacted.sch.service.SpecialClaimsCaseRepositoryService com.redacted.sch.model.SpecialClaimsCaseManager.specialClaimsCaseRepositoryService;
在这种情况下，xyz.model.SpecialClaimsCaseManager的{{1}}字段类型为@Autowired，但不存在此类bean。
不要在应用程序上下文之间混合使用组件扫描的文件夹，这些文件夹由xyz.service.SpecialClaimsCaseRepositoryService与ContextLoaderListener加载。重构以便DispatcherServlet加载应用程序bean，并且ContextLoaderListener加载与控制器相关的bean。
读：