feat: Aop

Author: 吴某人

spring-test/src/main/java/org/springframework/wx/AnnoAC.java

@@ -1,9 +1,11 @@
 package org.springframework.wx;
 
+import org.springframework.cglib.core.DebuggingClassWriter;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.expression.Expression;
 import org.springframework.expression.spel.standard.SpelExpressionParser;
 import org.springframework.expression.spel.support.StandardEvaluationContext;
+import org.springframework.wx.aop.RandomService;
 import org.springframework.wx.beans4test.circularReference.A;
 import org.springframework.wx.beans4test.lazy.NotALazyBean;
 import org.springframework.wx.beans4test.methodOveride.Student;
@@ -71,9 +73,14 @@ public static void main(String[] args) {
 //		AnnotationConfigApplicationContext annotationConfigApplicationContext = new AnnotationConfigApplicationContext("org.springframework.wx.importSelector");
 //		annotationConfigApplicationContext.getBean("personL");
 		// 实现懒加载bean
-		AnnotationConfigApplicationContext context4LazyTest = new AnnotationConfigApplicationContext("org.springframework.wx.beans4test.lazy");
-		((NotALazyBean)context4LazyTest.getBean("notALazyBean")).getIamALazyBean().getaBeanNeedAName();
+//		AnnotationConfigApplicationContext context4LazyTest = new AnnotationConfigApplicationContext("org.springframework.wx.beans4test.lazy");
+//		((NotALazyBean)context4LazyTest.getBean("notALazyBean")).getIamALazyBean().getaBeanNeedAName();
 
+		System.setProperty(DebuggingClassWriter.DEBUG_LOCATION_PROPERTY,"/home/wx/Documents/personal_java/spring-framework/spring-test/src/main/java/org/springframework/wx/aop");
+		AnnotationConfigApplicationContext applicationContext =
+		new AnnotationConfigApplicationContext("org.springframework.wx.aop");
+		RandomService bean = applicationContext.getBean(RandomService.class);
+		bean.doSomething();
 
 	}
 

spring-test/src/main/java/org/springframework/wx/aop/RandomService.java

@@ -1,17 +1,17 @@
 package org.springframework.wx.aop;
 
+import org.springframework.stereotype.Service;
+
 /**
  * @author wuxin
  * @date 2022/10/08 09:50:58
  */
+@Service
 public class RandomService {
 
 	public void doSomething(){
 		System.out.println("..................do business logic.....................");
 	}
 
-	public void doSomethingElse(){
-		System.out.println("..................do something else logic.....................");
-	}
 
 }

spring-test/src/main/java/org/springframework/wx/aop/intercept/AopConfig.java

@@ -0,0 +1,69 @@
+package org.springframework.wx.aop.intercept;
+
+import org.aopalliance.intercept.MethodInterceptor;
+import org.aopalliance.intercept.MethodInvocation;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.springframework.aop.AfterReturningAdvice;
+import org.springframework.aop.aspectj.AspectJExpressionPointcut;
+import org.springframework.aop.support.DefaultPointcutAdvisor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.EnableAspectJAutoProxy;
+
+import java.lang.reflect.Method;
+
+@Configuration
+@EnableAspectJAutoProxy(proxyTargetClass = true)
+public class AopConfig {
+
+	@Bean
+	public AspectJExpressionPointcut myAspectJExpressionPointcut() {
+		AspectJExpressionPointcut aspectJExpressionPointcut = new AspectJExpressionPointcut();
+		aspectJExpressionPointcut.setExpression("execution(* org.springframework.wx.aop.RandomService.*(..))");
+		return aspectJExpressionPointcut;
+	}
+
+	@Bean
+	public DefaultPointcutAdvisor defaultPointcutAdvisor(AspectJExpressionPointcut myAspectJExpressionPointcut) {
+		TracingInterceptor tracingInterceptor = new TracingInterceptor();
+		DefaultPointcutAdvisor defaultPointcutAdvisor = new DefaultPointcutAdvisor();
+		defaultPointcutAdvisor.setPointcut(myAspectJExpressionPointcut);
+		defaultPointcutAdvisor.setAdvice(tracingInterceptor);
+		return defaultPointcutAdvisor;
+	}
+
+	@Bean
+	public DefaultPointcutAdvisor defaultAfterPointcutAdvisor(AspectJExpressionPointcut myAspectJExpressionPointcut) {
+		AfterInterceptor tracingInterceptor = new AfterInterceptor();
+		DefaultPointcutAdvisor defaultPointcutAdvisor = new DefaultPointcutAdvisor();
+		defaultPointcutAdvisor.setPointcut(myAspectJExpressionPointcut);
+		defaultPointcutAdvisor.setAdvice(tracingInterceptor);
+		return defaultPointcutAdvisor;
+	}
+
+	public static class TracingInterceptor implements MethodInterceptor {
+
+		@Nullable
+		@Override
+		public Object invoke(@NotNull MethodInvocation invocation) throws Throwable {
+			Method method = invocation.getMethod();
+			String name = method.getName();
+			System.out.println(name + "方法开始执行！");
+			Object proceed = invocation.proceed();
+			System.out.println(name + "方法执行结束！");
+			return proceed;
+		}
+	}
+
+
+
+	public static class AfterInterceptor implements AfterReturningAdvice {
+		@Override
+		public void afterReturning(Object returnValue, Method method, Object[] args, Object target) throws Throwable {
+			System.out.println("这是一个后置切面");
+		}
+	}
+
+
+}