spring AOP 自定义注解

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配置

applicationConfig.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"xmlns:aop="http://www.springframework.org/schema/aop" xmlns:task="http://www.springframework.org/schema/task"xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans-3.1.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd        http://www.springframework.org/schema/task  http://www.springframework.org/schema/task/spring-task-3.1.xsd    http://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-3.0.xsd"><context:annotation-config /><task:annotation-driven /><context:component-scan base-package="扫描的包名"><context:exclude-filter type="annotation"expression="org.springframework.stereotype.Controller" /></context:component-scan><aop:aspectj-autoproxy/></bean></beans>

spring-mvc.xml

    <context:component-scan base-package="<span style="font-family: Arial, Helvetica, sans-serif;">扫描的包名</span><span style="font-family: Arial, Helvetica, sans-serif;">" use-default-filters="false"></span>        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>    </context:component-scan><aop:aspectj-autoproxy proxy-target-class="true" />

自定义的注解

/** * Created by zhonghao.wang on 2016/7/21. */import java.lang.annotation.Documented;import java.lang.annotation.ElementType;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;//自定义注解相关设置@Target({ElementType.METHOD})@Retention(RetentionPolicy.RUNTIME)@Documentedpublic @interface JspRequest {    //自定义注解的属性，default是设置默认值    String desc() default "处理Jsp请求，捕捉异常、打印日志、监控";}

切面

import org.aspectj.lang.ProceedingJoinPoint;import org.aspectj.lang.Signature;import org.aspectj.lang.annotation.Around;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Pointcut;import org.aspectj.lang.reflect.MethodSignature;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.core.annotation.Order;import org.springframework.stereotype.Component;/** * Created by zhonghao.wang on 2016/7/21. */@Component@Order(1)@Aspectpublic class ControllerAspect {    public static final String jspRequest = "jspRequest";    @Pointcut("@annotation(com.ucar.ac.common.annotation.JspRequest)")    public void pointcut() {    }    @Around("pointcut()")    public String catchException(ProceedingJoinPoint pjp) throws Throwable {        Logger logger = getLogger(pjp, jspRequest);        try {//            Model model = (Model) pjp.getArgs()[1];//            Object form = pjp.getArgs()[2];            return (String) pjp.proceed(pjp.getArgs());        } catch (Exception e) {            logger.error(e.getMessage(), e);            return "/500.jsp";        }    }    public static Logger getLogger(ProceedingJoinPoint pjp, String tag) {        Signature signature = pjp.getSignature();        String monitorKey = "NONE_Interface_MonitorKey";        if (signature instanceof MethodSignature) {            MethodSignature methodSignature = (MethodSignature) signature;            // 此处需要考虑一下性能问题            // mapping 方法对应的 类全名 + 方法名            monitorKey = tag + "#" + methodSignature.getDeclaringTypeName() + "#" + methodSignature.getName();        }        return LoggerFactory.getLogger(monitorKey);    }}

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