注解方式增强（实现登录日志录入数据库）（前置增强+后置增强）

拼搏现实的明天。 2022-06-05 10:10 155阅读 0赞

LoginAspectJ中的代码

import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpSession;
    
    import org.aspectj.lang.annotation.AfterReturning;
    import org.aspectj.lang.annotation.Aspect;
    import org.aspectj.lang.annotation.Before;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.context.request.RequestContextHolder;
    import org.springframework.web.context.request.ServletRequestAttributes;
    
    import com.baobaotao.domain.User;
    import com.baobaotao.service.UserService;
    
    @Aspect
    public class LoginAspectJ {
    	
    	@Autowired
    	private UserService userService;
    	
    	@Before("execution(* com.baobaotao.web.UserController.loginCheck(..))")
    	public void beforeloginCheck(){
    		System.out.println("before"+"How are u !");
    	}
    	
    	@AfterReturning("execution(* com.baobaotao.web.UserController.loginCheck(..))")
    	public void afterloginCheck(){
    		System.out.println("after"+"How are u !");
    		
    
    		HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()) .getRequest();
    		HttpSession  session = request.getSession();
    		User user = (User) session.getAttribute("user");
    		
    		if(user!=null)
    		{
    		userService.loginSuccess(user);
    		}
    	}
    }

baobaotao-servlet.xml  配置部分

<?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:context="http://www.springframework.org/schema/context"
    	xmlns:aop="http://www.springframework.org/schema/aop" 
    	xmlns:tx="http://www.springframework.org/schema/tx"
    	xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
           http://www.springframework.org/schema/context 
           http://www.springframework.org/schema/context/spring-context-3.0.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
           
           
    	
    	<context:component-scan base-package="com.baobaotao.web"/>
    	<context:component-scan base-package="com.baobaotao.dao"/>
        <context:component-scan base-package="com.baobaotao.service"/>
        <context:component-scan base-package="com.baobaotao.aspectj"/>
    
    
    	<aop:aspectj-autoproxy/>
    	<bean id="userservice" class="com.baobaotao.service.UserService"/>
    	<bean class="com.baobaotao.aspectj.LoginAspectJ"/>
    	
    	
    	
    	<bean
    		class="org.springframework.web.servlet.view.InternalResourceViewResolver"
    		p:viewClass="org.springframework.web.servlet.view.JstlView" 
    		p:prefix="/WEB-INF/jsp/"
    		p:suffix=".jsp" />
    </beans>

新增的aop部分，和xsi:schemaLocation  路径里的  aop 和 aop-3.0.xsd