Spring AOP + PageHelper分页

1. 增加依赖配置 <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.6.11</version> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.6.11</version>

增加pagehelper

<dependency>
  <groupId>com.github.pagehelper</groupId>
  <artifactId>pagehelper</artifactId>
  <version>4.1.0</version>
</dependency>

1. 增加配置 <context:component-scan base-package="com.example.controller"/> <!-- 启动对@AspectJ注解的支持 --> <aop:aspectj-autoproxy/> <!--启动springmvc注解--> <mvc:annotation-driven content-negotiation-manager="contentNegotiationManager" />
2. 增加注解 @Target({ElementType.PARAMETER, ElementType.METHOD}) @Retention(RetentionPolicy.RUNTIME) @Documented public @interface EnablePaging { String value() default ""; }
3. 增加AOP文件。

这里约定最后两个参数是pageNum 和pageSize

@Aspect
@Component
@Slf4j
public class PageAop {
 
   @Pointcut("@annotation(com.example.annotation.EnablePaging)")
    public void serviceAspect(){
        log.info("serviceAspect");
    }
 
    @Before("serviceAspect()")
    public  void doBefore(JoinPoint joinPoint) {
        log.info("doBefore");
    }
 
 
 
    @Around(value = "serviceAspect()")
    public Object doAround(ProceedingJoinPoint point) throws  Throwable{
        log.info("doAround ");
        Object[] args = point.getArgs();
        Integer pageNum = 1;
        Integer pageSize = 10;
        if(args.length >= 2){
            pageNum = (Integer)args[args.length -2];
            pageSize = (Integer)args[args.length - 1];
        }
        PageHelper.startPage(pageNum, pageSize);
        return  point.proceed(args);
    }
 
 
}

1. Controller层 @RequestMapping(value = "queryLogs") @EnablePaging @ResponseBody public ServerResponse<PageInfo> queryLogs(HttpServletResponse response, @RequestParam(value = "pageNum",defaultValue = "1") int pageNum, @RequestParam(value = "pageSize",defaultValue = "10")int pageSize){ List<Log> list = iLogService.queryList(pageNum, pageSize); PageInfo pageInfo = new PageInfo(list); return ServerResponse.createBySuccess(pageInfo); }