基于spring同名bean覆盖问题的解决

public class TradeContextLoaderListener extends ContextLoaderListener {
 @Override
 protected void customizeContext(ServletContext servletContext,
   ConfigurableWebApplicationContext applicationContext) {
  super.customizeContext(servletContext, applicationContext);
  XmlWebApplicationContext context = (XmlWebApplicationContext) applicationContext;
  context.setAllowBeanDefinitionOverriding(false);
 }
}

 <listener>
  <description>spring监听器</description>
  <listener-class>com.***.trade.system.web.util.TradeContextLoaderListener</listener-class>
 </listener>

public abstract class AbstractNameService
{
 public abstract String getname();
}

@Service("firstNameService")
public class FirstNameService extends AbstractNameService
{ 
 @Override
 public String getname()
 {
  return "FirstName";
 } 
}

@Service("nameService")
public class NameService extends AbstractNameService
{ 
 @Override
 public String getname()
 {
  return "Name";
 } 
}

public abstract class AbstractService
{
 protected AbstractNameService nameService; 
 public String getName()
 {
  return nameService.getname();
 } 
 public AbstractNameService getService()
 {
  return nameService;
 } 
 <span style="color:#ff9966;">@Resource(name = "nameService")</span>
 public void setService(AbstractNameService nameService)
 {
  this.nameService = nameService;
 } 
}

@Service("getNameService")
public class GetNameService extends AbstractService
{ 
 <span style="color:#ff9900;">@Resource(name = "firstNameService")</span>
 @Override
 public void setService(AbstractNameService nameService)
 {
  this.nameService = nameService;
 } 
}

@Controller
public class UnionpayQuickPayDSMVC
{
 @Resource
 private AbstractService getNameService; 
 @RequestMapping(value = "/*", method = RequestMethod.GET)
 public void execute(HttpServletRequest request, HttpServletResponse response)
 {
  try
  {
   response.getWriter().write(getNameService.getName());
  }
  catch (IOException e)
  {
   System.out.println(e);
  }
 }
}