后台常见报错处理

Posted 2020-10-06 古兰精

1、接口注入问题：

@Controller
@Scope("prototype")
public class GenuineManagementAction extends BaseAction {

    private static final long serialVersionUID = -3797612994929924322L;

    @Resource
    private GenuineManagementService genuineManagementService;
    @Resource//这样写是有问题的，去掉即可正常
    private GenuineManagement genuineManagement;

}

  @Resource代表注入，只有接口才能注入，而GenuineManagement 是一个实体类，所以加上@Resource 会报如下错误：

Unable to instantiate Action, genuineManagementAction, 

No matching bean of type [com.vrv.paw.domain.GenuineManagement] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency.

Unable to instantiate Action, genuineManagementAction,  defined for ‘genuineManagementAction_listUI‘ in namespace ‘/‘Error creating bean with name ‘genuineManagementAction‘: Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.vrv.paw.domain.GenuineManagement] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.annotation.Resource(mappedName=, shareable=true, description=, name=, type=class java.lang.Object, authenticationType=CONTAINER, lookup=)} - action - file:/E:/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp4/wtpwebapps/JJFX/WEB-INF/classes/struts-extend.xml:420:89
    at com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:318)

2、