SpringMVC利用AOP实现自定义注解记录日志

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http://blog.csdn.net/paincupid/article/details/50534412

自定义注解，结合AOP实现日志功能
在做AOP日志的的时候，注意：
<aop:aspectj-autoproxy proxy-target-class="true"/>
如果将上面的话放在spring-context.xml/applicationContext.xml中，这里的aop设置将不会生效！！

源代码下载地址：https://git.oschina.net/paincupid/springmvc.git

代码以下
[java] view plain copy 在CODE上查看代码片派生到我的代码片
package com.paincupid.springmvc.log;

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;

@Retention(RetentionPolicy.RUNTIME)//注解会在class中存在，运行时可通过反射获取
@Target(ElementType.METHOD)//目标是方法
@Documented//文档生成时，该注解将被包含在javadoc中，可去掉
public @interface OpLogger {

    public String id() default "-1";
    public enum OpType{ ADD,UPDATE, DEL, SEARCH};
    OpType type() default OpType.SEARCH;
}

[java] view plain copy 在CODE上查看代码片派生到我的代码片
package com.paincupid.springmvc.log;

import java.lang.reflect.Method;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import com.paincupid.springmvc.log.OpLogger.OpType;

/**
*
* @author arthur.paincupid.lee
* @since 2016.01.18
*/
@Aspect
@Component
public class SysLogAspect {
    private static final Logger logger = LoggerFactory.getLogger(SysLogAspect. class);

    @Pointcut("@annotation(com.paincupid.springmvc.log.OpLogger)")
    public void controllerAspect() {
    }

    @Before("controllerAspect()")
    public void doBefore(JoinPoint joinPoint) {
        System.out.println("=====SysLogAspect前置通知开始=====");
        handleLog(joinPoint, null);
    }

    @AfterReturning(pointcut="controllerAspect()")
    public void doAfter(JoinPoint joinPoint) {
        System.out.println("=====SysLogAspect后置通知开始=====");
        handleLog(joinPoint,null);
    }

    @AfterThrowing(value="controllerAspect()",throwing="e")
    public void doAfter(JoinPoint joinPoint, Exception e) {
        System.out.println("=====SysLogAspect异常通知开始=====");
        handleLog(joinPoint, e);
    }

    private void handleLog(JoinPoint joinPoint,Exception e) {
        try {
            //获得注解
            OpLogger logger = giveController(joinPoint);
            if(logger == null)
            {
                return;
            }

            String signature = joinPoint.getSignature().toString(); // 获取目标方法签名
            String methodName = signature.substring(signature.lastIndexOf(".") + 1,
                    signature.indexOf("("));

            String longTemp = joinPoint.getStaticPart().toLongString();
            String classType = joinPoint.getTarget().getClass().getName();

            Class<?> clazz = Class.forName(classType);

            Method[] methods = clazz.getDeclaredMethods();
            System.out.println("methodName: " + methodName);

            for (Method method : methods) {

                if (method.isAnnotationPresent(OpLogger.class)
                        && method.getName().equals(methodName)) {
                    //OpLogger logger = method.getAnnotation(OpLogger.class);
                    String annId = logger.id();
                    OpType type = logger.type();
                    String clazzName = clazz.getName();
                    System.out.println("clazzName: " + clazzName+ ", methodName: "
                            + methodName + ", annId: "+ annId + ", type: "+type.toString());
                }
            }

        } catch (Exception exp) {
            logger.error("异常信息:{}", exp.getMessage());
            exp.printStackTrace();
           }
    }

    private static OpLogger giveController(JoinPoint joinPoint) throws Exception {
        Signature signature = joinPoint.getSignature();
        MethodSignature methodSignature = (MethodSignature) signature;
        Method method = methodSignature.getMethod();

        if (method != null) {
            return method.getAnnotation(OpLogger.class);
        }
        return null;
    }


    public void insertLogSuccess(JoinPoint jp, OpLogger logger) {}

    public void writeLogInfo(JoinPoint joinPoint, OpLogger opLogger)
            throws Exception, IllegalAccessException {}
}

[html] view plain copy 在CODE上查看代码片派生到我的代码片

    <aop:aspectj-autoproxy proxy-target-class="true" />
别忘记引入：
[html] view plain copy 在CODE上查看代码片派生到我的代码片
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:beans="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
    xmlns="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="
                 http://www.springframework.org/schema/aop     http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
                 http://www.springframework.org/schema/beans   http://www.springframework.org/schema/beans/spring-beans.xsd
                 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
                 http://www.springframework.org/schema/mvc     http://www.springframework.org/schema/mvc/spring-mvc.xsd
             "
    default-autowire="byName">

使用：
[java] view plain copy 在CODE上查看代码片派生到我的代码片
package com.paincupid.springmvc.json.controller;

import java.io.UnsupportedEncodingException;
import java.util.List;

import org.apache.ibatis.builder.ParameterExpression;
import org.aspectj.lang.JoinPoint;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import com.paincupid.springmvc.log.OpLogger;
import com.paincupid.springmvc.log.OpLogger.OpType;
import com.paincupid.springmvc.test.domain.Person;
import com.paincupid.springmvc.util.BaseJsonRst;
import com.paincupid.springmvc.util.CreatMockData;

@Controller
@RequestMapping("/jqueryFormPluginSimple")
public class JqueryFormPluginSimpleController {
    private static final Logger log = LoggerFactory.getLogger(JqueryFormPluginSimpleController.class);

    /**
     * 在前台的访问路径为： http://localhost:8080/springmvc/jqueryFormPluginSimple/list
     * @param person
     * @param model
     * @return
     */
    @RequestMapping("/list")
    @OpLogger(id = "18611112222", type=OpType.SEARCH)
    public String listPerson() {

        return "json/jqueryFormPluginSimple";
    }

    /**
     * 请求接收的是一个Java类
     * @param person
     * @return
     */
    @ResponseBody
    @OpLogger(id = "18633334444", type=OpType.SEARCH)
    @RequestMapping(value="/getForm", method=RequestMethod.POST)
    public BaseJsonRst<List<Person>> getForm(Person person, @RequestParam("currentPage") int currentPage){
        log.info("\r\nid: "+person.getId()+", name: "+person.getName()+", currentPage: "+currentPage);
        BaseJsonRst<List<Person>> ret = new BaseJsonRst<List<Person>>();
        List<Person> list = CreatMockData.createPersonList(20,currentPage);
        ret.setResult(list);
        ret.setTotalCounts(250);
        ret.setCurrentPage(person.getCurrentPage());
        ret.setSuccess(true);

        /**
         * 如果抛出异常，刚可以被日志捕获到，但如果是try catch的话，就不得调到public void doAfter(JoinPoint joinPoint, Exception e) 方法了
         */
        //throw Exception("error happen!");

        return ret;
    }

    private Exception Exception(String string) {
        // TODO Auto-generated method stub
        return null;
    }

    public static void main(String[] args){
        int a = (int)Math.ceil(1.002);
        System.out.println(a);
    }
}

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