春天自动装配不起作用

Question

嗨,我在调度程序类中使用带有Quartz的spring 3.0.我已经创建了应用程序上下文

private static final ClassPathXmlApplicationContext applicationContext;
static {
    applicationContext = new
        ClassPathXmlApplicationContext("config/applicationContext.xml");
}

问题是没有任何@Autowiredbean实际上是自动连接的,所以我必须手动设置依赖关系,如下所示:

<bean class="com.spr.service.RegistrationServiceImpl" id="registrationService">
    <property name="userService" ref="userService" />
</bean>

我正在使用的示例@Autowired:

public class RegistrationService {
   @AutoWired private UserService userService;
   // setter for userService;
}

public class UserService{
   // methods
}

我还确保在Spring配置中启用注释配置:

<context:annotation-config/>
<bean id="registrationSevice" class="RegistrationService"/>
<bean id="userService" class="UserService"/>

为什么@Autowired不为我工作？

Answer 1

您尚未提供UserService类源代码,因此我无法确定您的问题.看起来UserService类缺少像@Component或@Service这样的'原型'注释.您还必须使用以下配置配置Spring类路径扫描:

    <?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"
       xsi:schemaLocation="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">

     <!-- Add your classes base package here -->          
     <context:component-scan base-package="your.package"/>

   </beans>

您的bean必须包含一个Spring构造型注释,例如:

package your.package;

@Service
public class UserService{
}

Answer 2

Atlast我通过添加它来解决它

<context:component-scan base-package="your.package"/> 

在我的applicationContext.xml中.谢谢大家的支持.