SpringBoot整合AOP

ゝ一世哀愁。 2023-05-21 07:22 18阅读 0赞

# SpringBoot整合AOP #

pom.xml引入以下依赖

<dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
    
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjrt</artifactId>
                <version>1.6.10</version>
            </dependency>
    
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
                <version>1.6.10</version>
            </dependency>
    
            
            <dependency>
    
                <groupId>cglib</groupId>
                <artifactId>cglib</artifactId>
                <version>2.2.2</version>
            </dependency>
    
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aop</artifactId>
                <version>4.3.11.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
                <exclusions>
                    <exclusion>
                        <groupId>org.junit.vintage</groupId>
                        <artifactId>junit-vintage-engine</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
        </dependencies>

在启动类父文件夹中新建service文件夹并在其下新建UserService.java

package cn.itxiaoliu.aop.service;
    
    import org.springframework.stereotype.Service;
    
    @Service
    public class UserService { 
        public String getUsernameById(Integer id){ 
            System.out.println("getUsernameById");
            return "xiaoliu";
        }
        public void deleteUserById(Integer id){ 
            System.out.println("deleteUserById");
        }
    }

在启动类父文件夹下新建UserController.java

package cn.itxiaoliu.aop;
    
    import cn.itxiaoliu.aop.service.UserService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class UserController { 
        @Autowired
        UserService userService;
        @GetMapping("/test1")
        public String getUsernameById(Integer id){ 
            return userService.getUsernameById(id);
        }
        @GetMapping("/test2")
        public void deleteUserById(Integer id){ 
            userService.deleteUserById(id);
        }
    }

再新建LogComponent.java

package cn.itxiaoliu.aop;
    
    import org.aspectj.lang.JoinPoint;
    import org.aspectj.lang.ProceedingJoinPoint;
    import org.aspectj.lang.annotation.*;
    import org.springframework.stereotype.Component;
    
    @Component
    @Aspect
    public class LogComponent  { 
        @Pointcut("execution(* cn.itxiaoliu.aop.service.*.*(..))")
        public void pc1(){ 
        }
        @Before(value = "pc1()")
        public void before(JoinPoint jp){ 
            String name=jp.getSignature().getName();
            System.out.println("before---"+name);
        }
        @After(value = "pc1()")
        public void after(JoinPoint jp){ 
            String name = jp.getSignature().getName();
            System.out.println("after-----"+name);
        }
        @AfterReturning(value = "pc1()",returning = "result")
        public  void afterReturning(JoinPoint jp,Object result){ 
            String name=jp.getSignature().getName();
            System.out.println("afterReturning-----"+name+"-------"+result);
        }
        @AfterThrowing(value = "pc1()",throwing = "e")
        public void afterThrowing(JoinPoint jp,Exception e){ 
            String name = jp.getSignature().getName();
            System.out.println("afterThrowing---"+name+"------"+e.getMessage());
        }
        @Around("pc1()")
        public Object around(ProceedingJoinPoint pjp) throws Throwable { 
            Object proceed = pjp.proceed();
            return "www.xiaoliu.com";
        }
    }

浏览器访问

http://localhost:8080/test1

程序返回

before—getUsernameById  
getUsernameById  
after-----getUsernameById  
afterReturning-----getUsernameById-------www.xiaoliu.com

目录结构如下

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