spring AOP自定义注解方式实现日志管理

转:spring AOP自定义注解方式实现日志管理

今天继续实现AOP,到这里我个人认为是最灵活,可扩展的方式了,就拿日志管理来说,用Spring AOP 自定义注解形式实现日志管理。废话不多说,直接开始!!!

关于配置我还是的再说一遍。

 

在applicationContext-mvc.xml中要添加的

     <mvc:annotation-driven />
     <!-- 激活组件扫描功能,在包com.gcx及其子包下面自动扫描通过注解配置的组件 -->
     <context:component-scan base-package="com.gcx" />

  

     <!-- 启动对@AspectJ注解的支持 -->
     <!-- proxy-target-class等于true是强制使用cglib代理,proxy-target-class默认是false,如果你的类实现了接口 就走JDK代理,如果没有,走cglib代理  -->
     <!-- 注:对于单利模式建议使用cglib代理,虽然JDK动态代理比cglib代理速度快,但性能不如cglib -->

     <!--如果不写proxy-target-class="true"这句话也没问题-->
     <aop:aspectj-autoproxy proxy-target-class="true"/>

     <!--切面-->
     <bean id="systemLogAspect" class="com.gcx.annotation.SystemLogAspect"></bean>

接下来开始编写代码。

     创建日志类实体

View Code

     编写dao接口

View Code

    编写service层

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   编写service实现类serviceImpl

View Code

到这里基本程序编写完毕

下面开始自定义注解

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 1 package com.gcx.annotation;
 2 
 3 import java.lang.annotation.*;
 4 
 5 @Target({ElementType.PARAMETER, ElementType.METHOD})  
 6 @Retention(RetentionPolicy.RUNTIME)  
 7 @Documented  
 8 public @interface Log {
 9 
10     /** 要执行的操作类型比如:add操作 **/  
11     public String operationType() default "";  
12      
13     /** 要执行的具体操作比如:添加用户 **/  
14     public String operationName() default "";
15 }
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下面编写切面

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  1 package com.gcx.annotation;
  2 
  3 import java.lang.reflect.Method;
  4 import java.util.Date;
  5 import java.util.UUID;
  6 
  7 import javax.annotation.Resource;
  8 import javax.servlet.http.HttpServletRequest;
  9 import javax.servlet.http.HttpSession;
 10 
 11 import org.aspectj.lang.JoinPoint;
 12 import org.aspectj.lang.ProceedingJoinPoint;
 13 import org.aspectj.lang.annotation.After;
 14 import org.aspectj.lang.annotation.AfterReturning;
 15 import org.aspectj.lang.annotation.AfterThrowing;
 16 import org.aspectj.lang.annotation.Around;
 17 import org.aspectj.lang.annotation.Aspect;
 18 import org.aspectj.lang.annotation.Before;
 19 import org.aspectj.lang.annotation.Pointcut;
 20 import org.slf4j.Logger;
 21 import org.slf4j.LoggerFactory;
 22 import org.springframework.stereotype.Component;
 23 
 24 import com.gcx.entity.SystemLog;
 25 import com.gcx.entity.User;
 26 import com.gcx.service.SystemLogService;
 27 import com.gcx.util.JsonUtil;
 28 
 29 /**
 30  * @author 杨建 
 31  * @E-mail: email
 32  * @version 创建时间:2015-10-19 下午4:29:05
 33  * @desc 切点类 
 34  */
 35 
 36 @Aspect
 37 @Component
 38 public class SystemLogAspect {
 39 
 40     //注入Service用于把日志保存数据库  
 41     @Resource  //这里我用resource注解,一般用的是@Autowired,他们的区别如有时间我会在后面的博客中来写
 42     private SystemLogService systemLogService;  
 43     
 44     private  static  final Logger logger = LoggerFactory.getLogger(SystemLogAspect. class);  
 45     
 46     //Controller层切点  
 47     @Pointcut("execution (* com.gcx.controller..*.*(..))")  
 48     public  void controllerAspect() {  
 49     }  
 50     
 51     /** 
 52      * 前置通知 用于拦截Controller层记录用户的操作 
 53      * 
 54      * @param joinPoint 切点 
 55      */ 
 56     @Before("controllerAspect()")
 57     public void doBefore(JoinPoint joinPoint) {
 58         System.out.println("==========执行controller前置通知===============");
 59         if(logger.isInfoEnabled()){
 60             logger.info("before " + joinPoint);
 61         }
 62     }    
 63     
 64     //配置controller环绕通知,使用在方法aspect()上注册的切入点
 65       @Around("controllerAspect()")
 66       public void around(JoinPoint joinPoint){
 67           System.out.println("==========开始执行controller环绕通知===============");
 68           long start = System.currentTimeMillis();
 69           try {
 70               ((ProceedingJoinPoint) joinPoint).proceed();
 71               long end = System.currentTimeMillis();
 72               if(logger.isInfoEnabled()){
 73                   logger.info("around " + joinPoint + "\tUse time : " + (end - start) + " ms!");
 74               }
 75               System.out.println("==========结束执行controller环绕通知===============");
 76           } catch (Throwable e) {
 77               long end = System.currentTimeMillis();
 78               if(logger.isInfoEnabled()){
 79                   logger.info("around " + joinPoint + "\tUse time : " + (end - start) + " ms with exception : " + e.getMessage());
 80               }
 81           }
 82       }
 83     
 84     /** 
 85      * 后置通知 用于拦截Controller层记录用户的操作 
 86      * 
 87      * @param joinPoint 切点 
 88      */  
 89     @After("controllerAspect()")  
 90     public  void after(JoinPoint joinPoint) {  
 91   
 92        /* HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();  
 93         HttpSession session = request.getSession();  */
 94         //读取session中的用户  
 95        // User user = (User) session.getAttribute("user");  
 96         //请求的IP  
 97         //String ip = request.getRemoteAddr();
 98         User user = new User();
 99         user.setId(1);
100         user.setName("张三");
101         String ip = "127.0.0.1";
102          try {  
103             
104             String targetName = joinPoint.getTarget().getClass().getName();  
105             String methodName = joinPoint.getSignature().getName();  
106             Object[] arguments = joinPoint.getArgs();  
107             Class targetClass = Class.forName(targetName);  
108             Method[] methods = targetClass.getMethods();
109             String operationType = "";
110             String operationName = "";
111              for (Method method : methods) {  
112                  if (method.getName().equals(methodName)) {  
113                     Class[] clazzs = method.getParameterTypes();  
114                      if (clazzs.length == arguments.length) {  
115                          operationType = method.getAnnotation(Log.class).operationType();
116                          operationName = method.getAnnotation(Log.class).operationName();
117                          break;  
118                     }  
119                 }  
120             }
121             //*========控制台输出=========*//  
122             System.out.println("=====controller后置通知开始=====");  
123             System.out.println("请求方法:" + (joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName() + "()")+"."+operationType);  
124             System.out.println("方法描述:" + operationName);  
125             System.out.println("请求人:" + user.getName());  
126             System.out.println("请求IP:" + ip);  
127             //*========数据库日志=========*//  
128             SystemLog log = new SystemLog();  
129             log.setId(UUID.randomUUID().toString());
130             log.setDescription(operationName);  
131             log.setMethod((joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName() + "()")+"."+operationType);  
132             log.setLogType((long)0);  
133             log.setRequestIp(ip);  
134             log.setExceptioncode( null);  
135             log.setExceptionDetail( null);  
136             log.setParams( null);  
137             log.setCreateBy(user.getName());  
138             log.setCreateDate(new Date());  
139             //保存数据库  
140             systemLogService.insert(log);  
141             System.out.println("=====controller后置通知结束=====");  
142         }  catch (Exception e) {  
143             //记录本地异常日志  
144             logger.error("==后置通知异常==");  
145             logger.error("异常信息:{}", e.getMessage());  
146         }  
147     } 
148     
149     //配置后置返回通知,使用在方法aspect()上注册的切入点
150       @AfterReturning("controllerAspect()")
151       public void afterReturn(JoinPoint joinPoint){
152           System.out.println("=====执行controller后置返回通知=====");  
153               if(logger.isInfoEnabled()){
154                   logger.info("afterReturn " + joinPoint);
155               }
156       }
157     
158     /** 
159      * 异常通知 用于拦截记录异常日志 
160      * 
161      * @param joinPoint 
162      * @param e 
163      */  
164      @AfterThrowing(pointcut = "controllerAspect()", throwing="e")  
165      public  void doAfterThrowing(JoinPoint joinPoint, Throwable e) {  
166         /*HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();  
167         HttpSession session = request.getSession();  
168         //读取session中的用户  
169         User user = (User) session.getAttribute(WebConstants.CURRENT_USER);  
170         //获取请求ip  
171         String ip = request.getRemoteAddr(); */ 
172         //获取用户请求方法的参数并序列化为JSON格式字符串  
173         
174         User user = new User();
175         user.setId(1);
176         user.setName("张三");
177         String ip = "127.0.0.1";
178         
179         String params = "";  
180          if (joinPoint.getArgs() !=  null && joinPoint.getArgs().length > 0) {  
181              for ( int i = 0; i < joinPoint.getArgs().length; i++) {  
182                 params += JsonUtil.getJsonStr(joinPoint.getArgs()[i]) + ";";  
183             }  
184         }  
185          try {  
186              
187              String targetName = joinPoint.getTarget().getClass().getName();  
188              String methodName = joinPoint.getSignature().getName();  
189              Object[] arguments = joinPoint.getArgs();  
190              Class targetClass = Class.forName(targetName);  
191              Method[] methods = targetClass.getMethods();
192              String operationType = "";
193              String operationName = "";
194               for (Method method : methods) {  
195                   if (method.getName().equals(methodName)) {  
196                      Class[] clazzs = method.getParameterTypes();  
197                       if (clazzs.length == arguments.length) {  
198                           operationType = method.getAnnotation(Log.class).operationType();
199                           operationName = method.getAnnotation(Log.class).operationName();
200                           break;  
201                      }  
202                  }  
203              }
204              /*========控制台输出=========*/  
205             System.out.println("=====异常通知开始=====");  
206             System.out.println("异常代码:" + e.getClass().getName());  
207             System.out.println("异常信息:" + e.getMessage());  
208             System.out.println("异常方法:" + (joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName() + "()")+"."+operationType);  
209             System.out.println("方法描述:" + operationName);  
210             System.out.println("请求人:" + user.getName());  
211             System.out.println("请求IP:" + ip);  
212             System.out.println("请求参数:" + params);  
213                /*==========数据库日志=========*/  
214             SystemLog log = new SystemLog();
215             log.setId(UUID.randomUUID().toString());
216             log.setDescription(operationName);  
217             log.setExceptioncode(e.getClass().getName());  
218             log.setLogType((long)1);  
219             log.setExceptionDetail(e.getMessage());  
220             log.setMethod((joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName() + "()"));  
221             log.setParams(params);  
222             log.setCreateBy(user.getName());  
223             log.setCreateDate(new Date());  
224             log.setRequestIp(ip);  
225             //保存数据库  
226             systemLogService.insert(log);  
227             System.out.println("=====异常通知结束=====");  
228         }  catch (Exception ex) {  
229             //记录本地异常日志  
230             logger.error("==异常通知异常==");  
231             logger.error("异常信息:{}", ex.getMessage());  
232         }  
233          /*==========记录本地异常日志==========*/  
234         logger.error("异常方法:{}异常代码:{}异常信息:{}参数:{}", joinPoint.getTarget().getClass().getName() + joinPoint.getSignature().getName(), e.getClass().getName(), e.getMessage(), params);  
235   
236     }  
237     
238 }
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 我这里写的比较全,前置通知,环绕通知,后置通知,异常通知,后置饭后通知,都写上了,在我们实际编写中不写全也没事,我习惯上把记录日志的逻辑写在后置通知里面,我看网上也有些在前置通知里面的,但我感觉写在后置通知里比较好。

下面开始在controller中加入自定义的注解!!

复制代码
 1 package com.gcx.controller;
 2 
 3 import org.springframework.beans.factory.annotation.Autowired;
 4 import org.springframework.stereotype.Controller;
 5 import org.springframework.web.bind.annotation.RequestMapping;
 6 
 7 import com.gcx.annotation.Log;
 8 import com.gcx.service.UserService;
 9 
10 @Controller
11 @RequestMapping("userController")
12 public class UserController {
13 
14     @Autowired
15     private UserService userService;
16     
17     @RequestMapping("testAOP")
18     @Log(operationType="add操作:",operationName="添加用户")  
19     public void testAOP(String userName,String password){        
20         userService.addUser(userName, password);
21     }
22 }
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下面编写测试类

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1 @Test
2     public void testAOP1(){
3         //启动Spring容器        
4         ApplicationContext ctx = new ClassPathXmlApplicationContext(new String[]{"classpath:applicationContext-mvc.xml","classpath:applicationContext-dataSource.xml"});
5         //获取service或controller组件
6         UserController userController = (UserController) ctx.getBean("userController");
7         userController.testAOP("zhangsan", "123456");
8     }
9     
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数据库数据:

我原本想写两个切点,一个是service层,一个是controller层,service层是用来记录异常信息的日志,而controller层的是用来记录功能的日志,运行结果如下。    

这样做的话不知道在实际的项目中运行效率好不好,在这里请看到博客的大牛给点建议!!

生活源于拼搏!
posted @ 2016-11-23 20:22  月是故乡明95  阅读(336)  评论(0编辑  收藏  举报