不要在 Spring 中使用@autowire
Don't work @autowire in Spring
我想自动连接我的 userService，但出现错误。我有：
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<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>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>redirect.jsp</welcome-file>
</welcome-file-list>
调度员-servlet.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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:sec="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd">
<bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"/>
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/"
p:suffix=".jsp" />
<context:annotation-config/>
<context:component-scan base-package="com.andrylat.rgz.ocean.controllers" />
<context:component-scan base-package="com.andrylat.rgz.ocean.services" />
<mvc:annotation-driven />
<mvc:resources mapping="/resources/**" location="/resources/"/>
<tx:annotation-driven />
申请-context.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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:sec="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd">
<!-- DataAccess -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="driverClass" value="oracle.jdbc.driver.OracleDriver"/>
<property name="jdbcUrl" value="jdbc:oracle:thin:@localhost:1521:XE"/>
<property name="user" value="rgz1002"/>
<property name="password" value="aqweds"/>
</bean>
<context:component-scan base-package="com.andrylat.rgz.ocean.dao"/>
<!-- Hibernate session factory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan">
<list>
<value>com.andrylat.rgz.ocean.domains</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.Oracle10gDialect
</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<context:component-scan base-package="com.andrylat.rgz.ocean.domains"/>
<bean id="userDAO" class="com.andrylat.rgz.ocean.dao.UserDAOImpl">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="userService"
class="com.andrylat.rgz.ocean.services.UserService">
<property name="userDAO" ref="userDAO" />
</bean>
<bean id="userServiceForSecurity"
class="com.andrylat.rgz.ocean.services.UserService">
<property name="userDAO" ref="userDAO" />
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="get*" read-only="true" />
<tx:method name="find*" read-only="true" />
<tx:method name="*" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="userServicePointCut"
expression="execution(* com.andrylat.rgz.ocean.services.*Service.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="userServicePointCut" />
</aop:config>
<!-- Spring Security -->
<bean id="passwordEncoder"
class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder">
</bean>
<sec:http auto-config="true" use-expressions="true">
<!--access-denied-handler error-page="/403" /-->
<sec:logout logout-success-url="/index.htm" />
<sec:form-login login-page="/login.htm"
default-target-url="/Ocean/test/testpage.htm"
authentication-failure-url="/login.htm?error=1" />
<sec:intercept-url pattern="/test/*"
access="hasAnyRole('ROLE_ADMIN','ROLE_USER')" />
<sec:intercept-url pattern="/*"
access="permitAll" />
<sec:intercept-url pattern="/resources/**"
access="permitAll" />
<sec:csrf />
</sec:http>
<!--sec:authentication-manager>
<sec:authentication-provider>
<sec:jdbc-user-service data-source-ref="dataSource"
users-by-username-query=
"select login, password, enabled from users where login =? "
authorities-by-username-query=
"select login, userrole from userroles where login =? " />
<sec:password-encoder ref="passwordEncoder" />
</sec:authentication-provider>
</sec:authentication-manager-->
<sec:authentication-manager>
<sec:authentication-provider user-service-ref="userServiceForSecurity" >
<sec:password-encoder ref="passwordEncoder" />
</sec:authentication-provider>
</sec:authentication-manager>
UserService.java
@Service("userService") public class UserService implements UserDetailsService {
@Autowired
private UserDAO userDAO;
public UserDAO getUserDAO() {
return userDAO;
}
public void setUserDAO(UserDAO userDAO) {
this.userDAO = userDAO;
}
@Transactional(readOnly = true)
@Override
public UserDetails loadUserByUsername(final String username)
throws UsernameNotFoundException {
com.andrylat.rgz.ocean.domains.User user = userDAO.findByUserName(username);
List<GrantedAuthority> authorities
= new ArrayList<GrantedAuthority>();
authorities.add(new SimpleGrantedAuthority(user.getRole ()));
return buildUserForAuthentication(user, authorities);
}
private User buildUserForAuthentication(com.andrylat.rgz.ocean.domains.User user,
List<GrantedAuthority> authorities) {
return new User(user.getLogin(), user.getPassword(),
user.getEnabled(), true, true, true, authorities);
}}
IndexController.java
@Controller public class IndexController {
//@Autowired
//@Qualifier("userService")
private UserService userService;
public UserService getUserService() {
return userService;
}
public void setUserService(UserService userService) {
this.userService = userService;
}
@Autowired
private SessionFactory sessionFactory;
@RequestMapping (value="/index", method=RequestMethod.GET)
private ModelAndView getIndexPage (){
if (sessionFactory==null) {
System.err.println("sessionFactory is null!");
} else {
System.err.println("sessionFactory OK!");
}
return new ModelAndView ("index");
}
@RequestMapping (value="/login", method=RequestMethod.GET)
private ModelAndView getLoginPage (){
return new ModelAndView ("login");
} }
问题： 我在 IndexController.java 中的 UserService 没有自动装配！我被添加 "sessionFactory" 并且它也没有自动装配。 "SessionFactory" 仅为空，当我向 UserService 写入注释时，我有下一个堆栈跟踪（来自 jsp）：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping#0' defined in ServletContext resource [/WEB-INF/dispatcher-servlet.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'indexController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.andrylat.rgz.ocean.services.UserService com.andrylat.rgz.ocean.controllers.IndexController.userService; nested exception is java.lang.IllegalArgumentException: **Can not set com.andrylat.rgz.ocean.services.UserService field com.andrylat.rgz.ocean.controllers.IndexController.userService to com.sun.proxy.$Proxy158**
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:529)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:296)
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:602)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665)
org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:521)
org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:462)
org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
javax.servlet.GenericServlet.init(GenericServlet.java:158)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
我不明白为什么我无法获取此 UserService 并且我的 sessionFactory 为空。
似乎是应用程序的问题-context.xml命名。
因此，请确保文件 applicationContext.xml 在 WEB-INF 文件夹中存在且名称正确（不应为 application-context.xml），以便加载 sessionFactory bean。否则，sessionFactory bean 对象将为空。
错误出现在
private UserService userService;
UserService 是 class 而不是界面。我创建接口 UserServiceI（UserService 是实现 UserServiceI）并写入 IndexController
@Autowire
private UserServiceI userService;
一切正常！
我想自动连接我的 userService，但出现错误。我有：
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<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>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>redirect.jsp</welcome-file>
</welcome-file-list>
调度员-servlet.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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:sec="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd">
<bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"/>
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/"
p:suffix=".jsp" />
<context:annotation-config/>
<context:component-scan base-package="com.andrylat.rgz.ocean.controllers" />
<context:component-scan base-package="com.andrylat.rgz.ocean.services" />
<mvc:annotation-driven />
<mvc:resources mapping="/resources/**" location="/resources/"/>
<tx:annotation-driven />
申请-context.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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:sec="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd">
<!-- DataAccess -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="driverClass" value="oracle.jdbc.driver.OracleDriver"/>
<property name="jdbcUrl" value="jdbc:oracle:thin:@localhost:1521:XE"/>
<property name="user" value="rgz1002"/>
<property name="password" value="aqweds"/>
</bean>
<context:component-scan base-package="com.andrylat.rgz.ocean.dao"/>
<!-- Hibernate session factory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan">
<list>
<value>com.andrylat.rgz.ocean.domains</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.Oracle10gDialect
</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<context:component-scan base-package="com.andrylat.rgz.ocean.domains"/>
<bean id="userDAO" class="com.andrylat.rgz.ocean.dao.UserDAOImpl">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="userService"
class="com.andrylat.rgz.ocean.services.UserService">
<property name="userDAO" ref="userDAO" />
</bean>
<bean id="userServiceForSecurity"
class="com.andrylat.rgz.ocean.services.UserService">
<property name="userDAO" ref="userDAO" />
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="get*" read-only="true" />
<tx:method name="find*" read-only="true" />
<tx:method name="*" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="userServicePointCut"
expression="execution(* com.andrylat.rgz.ocean.services.*Service.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="userServicePointCut" />
</aop:config>
<!-- Spring Security -->
<bean id="passwordEncoder"
class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder">
</bean>
<sec:http auto-config="true" use-expressions="true">
<!--access-denied-handler error-page="/403" /-->
<sec:logout logout-success-url="/index.htm" />
<sec:form-login login-page="/login.htm"
default-target-url="/Ocean/test/testpage.htm"
authentication-failure-url="/login.htm?error=1" />
<sec:intercept-url pattern="/test/*"
access="hasAnyRole('ROLE_ADMIN','ROLE_USER')" />
<sec:intercept-url pattern="/*"
access="permitAll" />
<sec:intercept-url pattern="/resources/**"
access="permitAll" />
<sec:csrf />
</sec:http>
<!--sec:authentication-manager>
<sec:authentication-provider>
<sec:jdbc-user-service data-source-ref="dataSource"
users-by-username-query=
"select login, password, enabled from users where login =? "
authorities-by-username-query=
"select login, userrole from userroles where login =? " />
<sec:password-encoder ref="passwordEncoder" />
</sec:authentication-provider>
</sec:authentication-manager-->
<sec:authentication-manager>
<sec:authentication-provider user-service-ref="userServiceForSecurity" >
<sec:password-encoder ref="passwordEncoder" />
</sec:authentication-provider>
</sec:authentication-manager>
UserService.java
@Service("userService") public class UserService implements UserDetailsService {
@Autowired
private UserDAO userDAO;
public UserDAO getUserDAO() {
return userDAO;
}
public void setUserDAO(UserDAO userDAO) {
this.userDAO = userDAO;
}
@Transactional(readOnly = true)
@Override
public UserDetails loadUserByUsername(final String username)
throws UsernameNotFoundException {
com.andrylat.rgz.ocean.domains.User user = userDAO.findByUserName(username);
List<GrantedAuthority> authorities
= new ArrayList<GrantedAuthority>();
authorities.add(new SimpleGrantedAuthority(user.getRole ()));
return buildUserForAuthentication(user, authorities);
}
private User buildUserForAuthentication(com.andrylat.rgz.ocean.domains.User user,
List<GrantedAuthority> authorities) {
return new User(user.getLogin(), user.getPassword(),
user.getEnabled(), true, true, true, authorities);
}}
IndexController.java
@Controller public class IndexController {
//@Autowired
//@Qualifier("userService")
private UserService userService;
public UserService getUserService() {
return userService;
}
public void setUserService(UserService userService) {
this.userService = userService;
}
@Autowired
private SessionFactory sessionFactory;
@RequestMapping (value="/index", method=RequestMethod.GET)
private ModelAndView getIndexPage (){
if (sessionFactory==null) {
System.err.println("sessionFactory is null!");
} else {
System.err.println("sessionFactory OK!");
}
return new ModelAndView ("index");
}
@RequestMapping (value="/login", method=RequestMethod.GET)
private ModelAndView getLoginPage (){
return new ModelAndView ("login");
} }
问题： 我在 IndexController.java 中的 UserService 没有自动装配！我被添加 "sessionFactory" 并且它也没有自动装配。 "SessionFactory" 仅为空，当我向 UserService 写入注释时，我有下一个堆栈跟踪（来自 jsp）：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping#0' defined in ServletContext resource [/WEB-INF/dispatcher-servlet.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'indexController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.andrylat.rgz.ocean.services.UserService com.andrylat.rgz.ocean.controllers.IndexController.userService; nested exception is java.lang.IllegalArgumentException: **Can not set com.andrylat.rgz.ocean.services.UserService field com.andrylat.rgz.ocean.controllers.IndexController.userService to com.sun.proxy.$Proxy158**
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:529)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:296)
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:602)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665)
org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:521)
org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:462)
org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
javax.servlet.GenericServlet.init(GenericServlet.java:158)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
我不明白为什么我无法获取此 UserService 并且我的 sessionFactory 为空。
似乎是应用程序的问题-context.xml命名。
因此，请确保文件 applicationContext.xml 在 WEB-INF 文件夹中存在且名称正确（不应为 application-context.xml），以便加载 sessionFactory bean。否则，sessionFactory bean 对象将为空。
错误出现在
private UserService userService;
UserService 是 class 而不是界面。我创建接口 UserServiceI（UserService 是实现 UserServiceI）并写入 IndexController
@Autowire
private UserServiceI userService;
一切正常！