6
以下是我的课：@Autowired注解问题，而不是注射类豆，使用Spring3.0，休眠
package com.abc.trade.util;
public class StockTraderLogger {
static Logger logger = Logger.getLogger("StockTraderLogger");
@Autowired
ConfigService configService;
public static void debug(Object className, Object logMessage) {
try {
System.out.println("in debug.. ");
StockTraderLogger stl =new StockTraderLogger();
stl.addMessage(""+convertToString(className)+"\t"+convertToString(logMessage));
System.out.println("in debug..post ");
} catch (DataAccessException e) {
System.out.println("Caught exception...");
e.printStackTrace();
}
}
public void addMessage(String message) throws DataAccessException {
System.out.println("in add message of util. ");
System.out.println("String: " + configService);
configService.addMessage(message);
}
}
@Autowire注释不工作。当调用addMessage方法时，它显示configService的值为null。但是它在我的一些Controller类中正确注入，但不在这里。
任何人都可以解释什么是问题吗？以及如何解决这个问题？
代码XML是：（beansdefinition.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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<context:component-scan base-package="com.abc.trade.util"/>
<context:component-scan base-package="com.abc.trade.service"/>
<!-- Hibernate Configuration -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="annotatedClasses">
<list>
<value>com.abc.trade.model.Order</value>
<value>com.abc.trade.model.Profile</value>
<value>com.abc.trade.model.Log</value>
</list>
</property>
</bean>
<tx:annotation-driven/>
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<bean id="commonService" class="com.abc.trade.framework.service.CommonServiceImplementor">
<property name="commonDao" ref="commonDao"/>
</bean>
<bean id="commonDao" class="com.abc.trade.framework.dao.HibernateDAO">
<property name="sessionFactory"><ref local="sessionFactory"/></property>
</bean>
<bean id="configService" class="com.abc.trade.service.ConfigServiceImplementor" parent="commonService">
</bean>
<import resource="../context/springws-servlet.xml"/>
</beans>
另一个XML是：（用SpringMVC-servlet.xml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:webflow="http://www.springframework.org/schema/webflow-config"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/webflow-config
http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.0.xsd">
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
<context:component-scan base-package="com.abc.trade.controller" />
<context:component-scan base-package="com.abc.trade.util"/>
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
<property name="basename" value="messages" />
</bean>
<!-- Exception Resolver -->
<bean id="exceptionResolver"
class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
<prop key="com.abc.trade.framework.exception.DataAccessException">
errorPage</prop>
<prop key="java.sql.SQLException">errorPage</prop>
<prop key="java.lang.Exception">errorPage</prop>
</props>
</property>
</bean>
</beans>
预先感谢您。
ConfigService：
package com.abc.trade.service;
import org.springframework.stereotype.Service;
import com.abc.trade.framework.exception.DataAccessException;
public interface ConfigService {
public void addMessage(String message) throws DataAccessException;
}
配置服务实现：
package com.abc.trade.service;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.abc.trade.framework.exception.DataAccessException;
import com.abc.trade.framework.service.CommonServiceImplementor;
import com.abc.trade.model.Log;
import com.abc.trade.model.Mode;
import com.abc.trade.util.StockTraderLogger;
@Service("configService")
public class ConfigServiceImplementor extends CommonServiceImplementor implements ConfigService{
String errorMessage = "";
@Override
public void addMessage(String message) {
System.out.println("in add message of service...........");
Log log = new Log();
try{
log.setMessage(message);
System.out.println("Message is: "+message);
int i=save(log);
}catch(Exception e)
{
errorMessage = "Error in saving debug message";
e.printStackTrace();
//throw new DataAccessException(errorMessage);
}
}
}
什么是ConfigService类的完整包类名称？我认为默认注射是按类型，而不是按名称。 – DwB 2011-05-10 13:35:21
我在控制器中自动装配了这个bean，它工作正常，但如果我在其他类中自动装配，那么它不会自动装配。 – Sagar 2011-05-10 13:42:42
你是否碰巧解决了问题sagar？ – 2012-04-27 15:34:54