spring AOP 自定义注解

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.xsd http://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/aop http://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)
@Documented

public @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)
@Aspect
public 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);
}

}