@ Controller
@ RequestMapping ("/ andy")
public class helloContoller {
@Autowired
private PayService payService;
@Autowired
private Resource resource;
@Autowired
private Person person;
@RequestMapping ("/hello2")
@ResponseBody
public Person hello2(){
person.setAge("132");
person.setName("andy");
return person;
}}
return the report:
com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.springframework.context.expression.StandardBeanExpressionResolver and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: com.example.controller.Resource$$EnhancerBySpringCGLIB$$397134d0 ["$$beanFactory"]-> org.springframework.beans.factory.support.DefaultListableBeanFactory ["beanExpressionResolver"])