提交《Spring核心技术》第22章代码

pom.xml

@@ -30,6 +30,7 @@
         <module>spring-annotation-chapter-19</module>
         <module>spring-annotation-chapter-20</module>
         <module>spring-annotation-chapter-21</module>
+        <module>spring-annotation-chapter-22</module>
     </modules>
 
     <properties>

spring-annotation-chapter-22/pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>io.binghe.spring</groupId>
+        <artifactId>spring-annotation-book</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>spring-annotation-chapter-22</artifactId>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>
\ No newline at end of file

spring-annotation-chapter-22/src/main/java/io/binghe/spring/annotation/chapter22/AspectTest.java

+/**
+ * Copyright 2022-9999 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.binghe.spring.annotation.chapter22;
+
+import io.binghe.spring.annotation.chapter22.bean.AspectBean;
+import io.binghe.spring.annotation.chapter22.config.AspectConfig;
+import io.binghe.spring.annotation.chapter22.service.AspectService;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+
+/**
+ * @author binghe(微信 : hacker_binghe)
+ * @version 1.0.0
+ * @description 切面型注解测试类
+ * @github https://github.com/binghe001
+ * @copyright 公众号: 冰河技术
+ */
+public class AspectTest {
+
+    public static void main(String[] args) {
+        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(AspectConfig.class);
+        AspectService aspectService = context.getBean(AspectService.class);
+        aspectService.saveOrUpdateAspectBean(new AspectBean());
+    }
+}

spring-annotation-chapter-22/src/main/java/io/binghe/spring/annotation/chapter22/aspect/AspectLog.java

+/**
+ * Copyright 2022-9999 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.binghe.spring.annotation.chapter22.aspect;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.*;
+import org.springframework.stereotype.Component;
+
+/**
+ * @author binghe(微信 : hacker_binghe)
+ * @version 1.0.0
+ * @description 切面型注解Log切面类
+ * @github https://github.com/binghe001
+ * @copyright 公众号: 冰河技术
+ */
+@Component
+@Aspect
+public class AspectLog {
+
+    @Pointcut("execution(* io.binghe.spring.annotation.chapter22.service.impl.*.*(..))")
+    private void pointCut(){}
+
+    @Before("pointCut()")
+    public void beforeLog(){
+        System.out.println("@Before注解在执行切入点方法之前记录日志...");
+    }
+
+    @After("pointCut()")
+    public void afterLog(){
+        System.out.println("@After注解无论切入点方法是否抛出异常都会记录日志...");
+    }
+
+    @AfterReturning("pointCut()")
+    public void afterReturningLog(){
+        System.out.println("@AfterReturning注解在切入点方法正常执行后记录日志...");
+    }
+
+    @AfterThrowing("pointCut()")
+    public void afterThrowingLog(){
+        System.out.println("@AfterThrowing注解在切入点方法抛出异常后记录日志...");
+    }
+
+    @Around("pointCut()")
+    public Object arountLog(ProceedingJoinPoint pjp){
+        //返回的结果数据
+        Object resultValue = null;
+        try{
+            System.out.println("在执行切入点方法之前记录日志...");
+            //获取执行方法的参数
+            Object[] args = pjp.getArgs();
+            //指定切入点的方法
+            resultValue = pjp.proceed(args);
+            System.out.println("在切入点方法正常执行后记录日志...");
+        }catch (Throwable t){
+            System.out.println("在切入点方法抛出异常后记录日志...");
+        }finally {
+            System.out.println("无论切入点方法是否抛出异常都会记录日志...");
+        }
+        return resultValue;
+    }
+}

spring-annotation-chapter-22/src/main/java/io/binghe/spring/annotation/chapter22/bean/AspectBean.java

+/**
+ * Copyright 2022-9999 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.binghe.spring.annotation.chapter22.bean;
+
+/**
+ * @author binghe(微信 : hacker_binghe)
+ * @version 1.0.0
+ * @description 切面型注解的实体类
+ * @github https://github.com/binghe001
+ * @copyright 公众号: 冰河技术
+ */
+public class AspectBean {
+
+}

spring-annotation-chapter-22/src/main/java/io/binghe/spring/annotation/chapter22/config/AspectConfig.java

+/**
+ * Copyright 2022-9999 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.binghe.spring.annotation.chapter22.config;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.EnableAspectJAutoProxy;
+
+/**
+ * @author binghe(微信 : hacker_binghe)
+ * @version 1.0.0
+ * @description 切面型注解案例配置类
+ * @github https://github.com/binghe001
+ * @copyright 公众号: 冰河技术
+ */
+@Configuration
+@EnableAspectJAutoProxy
+@ComponentScan(value = {"io.binghe.spring.annotation.chapter22"})
+public class AspectConfig {
+}

spring-annotation-chapter-22/src/main/java/io/binghe/spring/annotation/chapter22/service/AspectService.java

+/**
+ * Copyright 2022-9999 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.binghe.spring.annotation.chapter22.service;
+
+import io.binghe.spring.annotation.chapter22.bean.AspectBean;
+
+/**
+ * @author binghe(微信 : hacker_binghe)
+ * @version 1.0.0
+ * @description 切面型注解Service接口
+ * @github https://github.com/binghe001
+ * @copyright 公众号: 冰河技术
+ */
+public interface AspectService {
+
+    void saveOrUpdateAspectBean(AspectBean aspectBean);
+}

spring-annotation-chapter-22/src/main/java/io/binghe/spring/annotation/chapter22/service/impl/AspectServiceImpl.java

+/**
+ * Copyright 2022-9999 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.binghe.spring.annotation.chapter22.service.impl;
+
+import io.binghe.spring.annotation.chapter22.bean.AspectBean;
+import io.binghe.spring.annotation.chapter22.service.AspectService;
+import org.springframework.stereotype.Service;
+
+/**
+ * @author binghe(微信 : hacker_binghe)
+ * @version 1.0.0
+ * @description 切面型注解Service实现类
+ * @github https://github.com/binghe001
+ * @copyright 公众号: 冰河技术
+ */
+@Service
+public class AspectServiceImpl implements AspectService {
+    @Override
+    public void saveOrUpdateAspectBean(AspectBean aspectBean) {
+        int i = 1 / 0;
+        System.out.println("保存或者更新AspectBean对象...");
+    }
+}