spring aop学习1:演示代码(通过注解方式匹配切入方法)

红太狼 2022-06-07 07:50 57阅读 0赞

**1.搭建spring框架，添加开启aop注解的配置**

**2.新建java注解**  
AspectAnnotation.java:

package com.tiglle.manage.annotation;
    
    import java.lang.annotation.ElementType;
    import java.lang.annotation.Retention;
    import java.lang.annotation.RetentionPolicy;
    import java.lang.annotation.Target;
    
    @Retention(RetentionPolicy.RUNTIME)
    @Target(ElementType.METHOD)
    public @interface AspectAnnotation {
    
    }

**3.新建切面类**  
TestAspect .java

package com.tiglle.manage.aspect;
    
    import org.aspectj.lang.annotation.Aspect;
    import org.aspectj.lang.annotation.Before;
    import org.aspectj.lang.annotation.Pointcut;
    import org.springframework.stereotype.Component;
    
    @Aspect
    @Component
    public class TestAspect { 
    
        @Pointcut("@annotation(com.tiglle.manage.annotation.AspectAnnotation)")
        public void test(){
        }
    
        @Before("test()")
        public void execTest(){
            System.out.println("我是切面方法...");
        }
    
    }

**4.测试类**

package com.tiglle.manage.test;
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.test.context.ContextConfiguration;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    
    import com.tiglle.manage.annotation.AspectAnnotation;
    import com.tiglle.manage.service.TestService;
    
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration({
       "classpath*:applicationContext*.xml"})
    public class AspectTest {
    
        @Autowired TestService testService;
    
        @Test
        @AspectAnnotation
        public void test(){
            testService.test();
        }
    
    }

**6.输出结果**

我是切面方法...
    我是TestService的test方法