从零开始学Spring-: 基于aspectj 的SpringAop就基本开发

悠悠 2022-05-04 09:30 150阅读 0赞

### 文章目录 ###

*   *  1. 注解方式
     *   *  1.导入所需要的jar 包
         *  2.导入AOP 依赖
         *  3. 创建实体目标类 并在springxml中注册
         *   *  4.2 后置通知拓展
             *  4.3 环绕通知拓展
         *  5创建测试类
     *  2.Xml方式
     *   *  1．导入所需jar 包
         *  3.创建接口
         *  4.创建实现类
         *  5.配置XML
         *  6.创建测试类

Spring Aop-:aspectj 的就基本开发

## 1. 注解方式 ##

--------------------

### 1.导入所需要的jar 包 ###

<?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>
    
        <groupId>com.imooc.spring_aspectj</groupId>
        <artifactId>spring_aspectj</artifactId>
        <version>1.0-SNAPSHOT</version>
        <packaging>war</packaging>
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-expression</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>aopalliance</groupId>
                <artifactId>aopalliance</artifactId>
                <version>1.0</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aop</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
                <version>1.9.1</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aspects</artifactId>
                <version>5.0.4.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-test</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
    </project>

--------------------

### 2.导入AOP 依赖 ###

<?xml version="1.0" encoding="UTF-8"?>
    <beans xsi:schemaLocation=" http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans.xsd
     http://www.springframework.org/schema/aop
     http://www.springframework.org/schema/aop/spring-aop.xsd"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.springframework.org/schema/beans">
    
     <aop:aspectj-autoproxy/>
    </beans>

--------------------

### 3. 创建实体目标类 并在springxml中注册 ###

package com.imooc.aspectj.Demo1;
    
        public class ProductDao { 
          public void save() { 
          System.out.println ( "查询" );
           }
    
           public void update() { 
          System.out.println ( "修改" );
          }
    
           public void delect() { 
          System.out.println ( "删除" );
          }
    
           public void add() { 
          System.out.println ( "增加" );
          }
        }

\#\#\#4. 创建切面类 并在springxml中注册

package com.imooc.aspectj.Demo1;
    import org.aspectj.lang.annotation.Aspect;
    import org.aspectj.lang.annotation.Before;
    
        /*切面类*/
        /*声明为切面类*/
        @Aspect
        public class MyAspectAnno { 
           /*设置前置通知*/
          @Before(value = "execution(* com.imooc.aspectj.Demo1.ProductDao.*(..))")
          public void before() { 
          System.out.println ( "前置通知" );
           }
        }

--------------------

#### 4.2 后置通知拓展 ####

@AfterReturning(value = "execution(* com.imooc.aspectj.Demo1.ProductDao.update(..))",returning = "result")
    public void after( Object result ) {
       System.out.println ( "后置通知" + result);
    }

--------------------

#### 4.3 环绕通知拓展 ####

@Around ( value = "execution(* com.imooc.aspectj.Demo1.ProductDao.delect(..))" )
    public  Object aroud(ProceedingJoinPoint proceedingJoinPoint) throws Throwable { 
       System.out.println ("环绕前通知");
       /*如果不调用这个方法 目标方法会被拦截*/
      Object proceed = proceedingJoinPoint.proceed ();
       System.out.println ("环绕后通知");
       return proceed ;
    
    }

--------------------

### 5创建测试类 ###

package com.imooc.aspectj.Demo1;
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.test.context.ContextConfiguration;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    
    import javax.annotation.Resource;
    import javax.naming.Name;
    
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration("classpath:applicationContent.xml")
    public class SpringDemo { 
       @Resource(name = "productDao")
       private ProductDao productDao;
    
       @Test
       public void test() { 
          productDao.add ();
          productDao.delect ();
          productDao.update ();
          productDao.save ();
       }
    }

--------------------

## 2.Xml方式 ##

### 1．导入所需jar 包 ###

<?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>
    
        <groupId>com.imooc.spring_aspectj</groupId>
        <artifactId>spring_aspectj</artifactId>
        <version>1.0-SNAPSHOT</version>
        <packaging>war</packaging>
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-expression</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>aopalliance</groupId>
                <artifactId>aopalliance</artifactId>
                <version>1.0</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aop</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
                <version>1.9.1</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aspects</artifactId>
                <version>5.0.4.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-test</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>compile</scope>
            </dependency>
        </dependencies>
    
    </project>

\#\#\#2.创建切面类

package com.imooc.Demo2;
    
    /*Xml 方式通知*/
    public class MyAspectXml { 
        public void befor() { 
            System.out.println("前置通知");
        }
    
        public void afterReturing(Object o) { 
            System.out.println("后置增强" + o);
        }
    }

### 3.创建接口 ###

package com.imooc.Demo2;
    
    public interface CustoMDao { 
        public void add();
    
        public void update();
    
        public void save();
    
        public void delect();
    
        public void findAll();
    
    
    }

### 4.创建实现类 ###

package com.imooc.Demo2;
    
    public class CustomDaoImpl implements CustoMDao{ 
    
        public void add() { 
            System.out.println("添加");
        }
    
        public void update() { 
            System.out.println("修改");
    
        }
    
        public void save() { 
            System.out.println("查询");
    
        }
    
        public void delect() { 
            System.out.println("删除");
    
        }
    
        public void findAll() { 
            System.out.println("查询所有");
        }
    
    }

### 5.配置XML ###

<?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:aop="http://www.springframework.org/schema/aop"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
        
        
        <bean id="custoMDao" class="com.imooc.Demo2.CustomDaoImpl"></bean>
        
        <bean id="MyAspecyXml" class="com.imooc.Demo2.MyAspectXml"></bean>
        
        <aop:config>
    
            
           <aop:pointcut id="pointcut" expression="execution(* com.imooc.Demo2.CustoMDao.save(..))"/>
          <aop:pointcut id="poincut2" expression="execution(* com.imooc.Demo2.CustoMDao.*(..))"/>
            
            <aop:aspect ref="MyAspecyXml">
                <aop:before method="befor" pointcut-ref="pointcut"></aop:before>
                <aop:after-returning method="afterReturing" pointcut-ref="poincut2" returning="o"></aop:after-returning>
            </aop:aspect>
    
        </aop:config>
    </beans>

### 6.创建测试类 ###

package com.imooc.Demo2;
    
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.test.context.ContextConfiguration;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    
    import javax.annotation.Resource;
    
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration(value = "classpath:Aspectj.xml")
    public class SpringDemo2 { 
        @Resource(name = "custoMDao")
        private CustoMDao customDao;
    
        @Test
        public void Demo1() { 
            customDao.add();
            customDao.delect();
            customDao.update();
            customDao.save();
            customDao.findAll();
        }
    }