Spring4 Aop on Spring mvc controller error - spring-mvc

Question

code:
#Aspect
#Order(Integer.MAX_VALUE)
public class KeySortedAspect {
#Pointcut(value = "#annotation(com.le.bigdata.convertor.KeySortedRule)")
public void pointCut(){}
#Around(value = "pointCut()")
public Object keySorted(ProceedingJoinPoint joinPoint) throws Throwable {
Signature signature = joinPoint.getSignature();
MethodSignature methodSignature = (MethodSignature) signature;
Object result = joinPoint.proceed();
if(methodSignature.getMethod().isAnnotationPresent(KeySortedRule.class)){
KeySortedRule keySortedRule = methodSignature.getMethod().getAnnotation(KeySortedRule.class);
String path = keySortedRule.path();
//String rule = keySortedRule.rule();
try {
Map<String, String[]> keyMap = getRule(path);
Class<?> type = methodSignature.getMethod().getReturnType();
Object a = sortedUseKeyList(result, keyMap, type);
return a;
} catch (IOException e) {
logger.error("Key sorted Error");
logger.error("reason ", e);
}
}
return result;
}
}
spring mvc configuration mvc-dispatcher-servlet.xml:
<context:annotation-config />
<!-- controller层 内部ctrl与lebi对接的ctrl -->
<context:component-scan base-package="com.le.bigdata.controller, com.le.bigdata.api.controller"/>
<bean id="keySortedAspect" class="com.le.bigdata.convertor.KeySortedAspect"/>
<aop:aspectj-autoproxy proxy-target-class="true"/>
<mvc:default-servlet-handler/>
controller code:
#RestController
#RequestMapping("cp")
public class ContentPortraitController {
#Autowired
private IContentPortraitService service;
#RequestMapping(value = "usertop", method = RequestMethod.GET)
#ApiOperation(value = "获取默认的cv排名前10名的专辑")
private CommonResponseDTO getUserTop(#RequestParam(defaultValue = "10") int size){
List<Map<String, Object>> list = service.getDefaultPid(size);
return new CommonResponseDTO(true, list);
}
#RequestMapping(value = "/album", method = RequestMethod.GET)
#ApiOperation(value = "获取专辑画像", httpMethod = "GET")
#KeySortedRule(path="content_portrait")
public JSONObject getAlbum(#RequestParam(value="dt",required = false) String dt,
#RequestParam(value="start_dt",required = false) String start,
#RequestParam(value="end_dt",required = false) String end,
#RequestParam(value="product",required = false) List<String> product,
#RequestParam(value="pid") String pid){
JSONObject result = new JSONObject();
JSONObject data = null;
try {
if(dt != null && !dt.isEmpty()){
//
data = service.getAlbumPortrait(pid, dt, product);
} else if(start != null && end != null && !start.isEmpty() && !end.isEmpty()){
//
data = service.getAlbumPortrait(pid, start, end, product);
}
} catch (Exception e) {
return null;
}
result.put("result", data);
return result;
}
}
When I request /cp/album it works and response data.
But I request /cp/usertop it throw an exception: NullPointException
reference service is null! service could not be null, IContentPortraitService is an interface and has only one implementation. And I absolutely sure I have scan service package and use #Service annotation on it's implementation.
Debug information:
When I request /cp/usertop:
ContentProtrationController instance is ContentPortraitServiceImpl$$EnhancerBySprinigCGLIB$bdfd5678#7591 and service is null
When I request /cp/album:
ContentProtrationController instance is ContentPortraitServiceImpl#7591 and service is not null, it works.
What's wrong with my code? This problem has troubled me for many days.Who knows how to solve this problem?