AOP XML方式配置切面

短命女 2022-04-11 08:10 296阅读 0赞

最近做了系统日志。可用aop或者拦截器实现。

### 一最初用的aop注解方式实现，spring-mvc配置文件配置方式如下图： ###

![2018120510102271.png][]

切面类加上注解

![20181205101113459.png][]

最后定义切面，切点，通知等.....

功能也实现了，但是同事的接口突然访问不了。貌似这种开启cglib代理与spring本身的代理冲突了(猜测，自己也是没搞清楚)。

### 二 后来，自己采用拦截器的方式实现系统日志。 ###

配置拦截器

![20181205101559182.png][]

自定义注解

![20181205101907179.png][]

编写拦截方法

...
    import org.apache.shiro.SecurityUtils;
    import org.apache.shiro.subject.Subject;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.method.HandlerMethod;
    import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    public class SysLogInteceptor extends HandlerInterceptorAdapter {
    
        @Autowired
        private ISysLogService sysLogService;
    
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
    
            //你请求的目标必须是方法
            if(handler instanceof HandlerMethod) {
    
                HandlerMethod hm = (HandlerMethod) handler;
                SystemControllerLog systemControllerLog =  hm.getMethodAnnotation(SystemControllerLog.class);
                if(systemControllerLog==null) {//没有这个注解
                    return true;
    
                }else {//有注解
                    Subject subject = SecurityUtils.getSubject();
                    SysUserVo user = (SysUserVo)subject.getPrincipal();
                    if(user == null){
                        return true;
                    }
                    String ip = request.getRemoteAddr();
                    String desp = systemControllerLog.description();
                    String methodName = hm.getMethod().getName();
                    String controller = hm.getBeanType().getName();
    
                    SysLogVo sysLogVo = new SysLogVo();
                    sysLogVo.setId(GloabalIdGenerator.generatId("sys_log_t"));
                    sysLogVo.setMethod(methodName);
                    sysLogVo.setController(controller);
                    sysLogVo.setOpeartorTime(System.currentTimeMillis());
                    sysLogVo.setOperatorId(user.getId());
                    sysLogVo.setOperatorName(user.getLoginAccount());
                    sysLogVo.setOperatorUsername(user.getUsername());
                    sysLogVo.setRequestIp(ip);
                    sysLogVo.setOperator(desp);
                    try {
                        sysLogService.add(sysLogVo);
                    } catch (Exception e) {
                        throw new Exception(hm.getBeanType().getName()+"方法前系统日志插入失败");
                    }
    
                }
    
            }
            return true;
    
        }
    
       /* @Override
        public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
            System.out.println("执行该postHandle");
            super.postHandle(request, response, handler, modelAndView);
        }*/
    
        @Override
        public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
    
            if(handler instanceof HandlerMethod) {
    
                HandlerMethod hm = (HandlerMethod) handler;
                SystemControllerLogForLogin systemControllerLogForLogin =  hm.getMethodAnnotation(SystemControllerLogForLogin.class);
                if(systemControllerLogForLogin!=null) {
                    String ip = request.getRemoteAddr();
                    String desp = systemControllerLogForLogin.description();
                    String methodName = hm.getMethod().getName();
                    String controller = hm.getBeanType().getName();
    
                    Subject subject = SecurityUtils.getSubject();
                    SysUserVo user = (SysUserVo)subject.getPrincipal();
                    SysLogVo sysLogVo = new SysLogVo();
                    sysLogVo.setId(GloabalIdGenerator.generatId("sys_log_t"));
                    sysLogVo.setMethod(methodName);
                    sysLogVo.setController(controller);
                    sysLogVo.setOpeartorTime(System.currentTimeMillis());
                    sysLogVo.setOperatorId(user.getId());
                    sysLogVo.setOperatorName(user.getLoginAccount());
                    sysLogVo.setOperatorUsername(user.getUsername());
                    sysLogVo.setRequestIp(ip);
                    sysLogVo.setOperator(desp);
                    try {
                        sysLogService.add(sysLogVo);
                    } catch (Exception e) {
                        throw new Exception(hm.getBeanType().getName()+"方法后系统日志插入失败");
                    }
                }
            }
    
        }
    
    }

三 后面自己还是查了资料，看了下XML方式配置切面。

配置切面，其中proxy-target-class="true"需要配置，不配置默认为false。

切面类

package com.wdq.aop;
    
    import org.aspectj.lang.JoinPoint;
    
    import java.util.Arrays;
    
    public class MyAspect {
        public void logStart(JoinPoint joinPoint) {
            Object[] args = joinPoint.getArgs();
            String name = joinPoint.getSignature().getName();
            System.out.println("AOP日志：【" + name + "】方法开始运行,参数是:"
                    + Arrays.asList(args));
        }
    
        public void logEnd(JoinPoint joinPoint) {
            String name = joinPoint.getSignature().getName();
            System.out.println("AOP日志：【" + name + "】方法运行结束!");
        }
    
        public void logException(JoinPoint joinPoint, Exception e) {
            String name = joinPoint.getSignature().getName();
            System.out.println("AOP日志：【" + name + "】方法运行出现异常:" + e);
        }
    
        public void logReturn(JoinPoint joinPoint, Object res) {
            String name = joinPoint.getSignature().getName();
            System.out.println("AOP日志：【" + name + "】方法正常结束,返回值为:" + res);
        }
    
    }

参考aop链接：

[aop多种配置方式讲解][aop]

[2018120510102271.png]: /images/20220411/4f3965a0a0244767bd9bdeb26097cecf.png
[20181205101113459.png]: /images/20220411/17b10df9b77240c49b219db0b0c7ca9e.png
[20181205101559182.png]: /images/20220411/6d52ca80d5684a6f831e96439ee5e8b8.png
[20181205101907179.png]: /images/20220411/f66851adc9734531b1bbc1bcfa31b75f.png
[aop]: https://blog.csdn.net/onlylove_longshao/article/details/53560785