Spring AOP + PageHelper分页
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>
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" />
增加注解
@Target({ElementType.PARAMETER, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface EnablePaging {String value() default "";
}
- 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); } }
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); }
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