Spring AOP_学习记录_01

r囧r小猫 2022-02-28 08:20 189阅读 0赞

### 1. 在eclipse中加入spring aop 的依赖包 ###

1.1 **所需依赖如下所示:**

*  aopalliance-1.0.jar
 *  asm-3.3.1.jar
 *  aspectj-1.7.1.jar
 *  aspectjrt-1.7.0.jar(在aspectj-1.7.1.jar里面)
 *  aspectjweaver-1.7.0.jar(在aspectj-1.7.1.jar里面)
 *  cglib-2.2.2.jar  
    我找这几个依赖时，除了`aspectj-1.7.1.jar`,其余都是在这个Meven下载[Search 一下你所要找的jar包就可以了 ][Search _jar_]的。

1.2 **在eclipse中配置aspectj的库文件就可以了:**  
配置方法可以参考spring\_fragment\_学习记录 01.

### 1.2 First Aspect ###

*  org.zcs.springAop - AopMain.java

package org.zcs.springAop;
    
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    import org.zcs.springAop.service.ShapeService;
    
    public class AopMain { 
    
    	public static void main(String[] args) { 
    		// TODO Auto-generated method stub
    		ApplicationContext ctx = new ClassPathXmlApplicationContext("spring.xml");
    		ShapeService shapeservice = ctx.getBean("shapeService", ShapeService.class);
    		System.out.println(shapeservice.getCircle().getName());
    	}
    
    }

*  org.zcs.springAop.asepect-LoggingAspect.java

package org.zcs.springAop.aspect;
    
    import org.aspectj.lang.annotation.Aspect;
    import org.aspectj.lang.annotation.Before;
    
    @Aspect
    public class LoggingAspect { 
    	@Before("execution( public String getName())")
    	public void LoggingAdvice() { 
    		System.out.println("Advice running.... Get Method called.");
    	}
    }

*  org.zcs.springAop.model-Circle

package org.zcs.springAop.model;
    
    public class Circle { 
    	private String name;
    
    	public String getName() { 
    		return name;
    	}
    
    	public void setName(String name) { 
    		this.name = name;
    	}
    }

*  org.zcs.springAop.model-Triangle.java

package org.zcs.springAop.model;
    
    public class Triangle { 
    	private String name;
    
    	public String getName() { 
    		return name;
    	}
    
    	public void setName(String name) { 
    		this.name = name;
    	}
    	
    }

*  org.zcs.springAop.service-ShapeService.java

package org.zcs.springAop.service;
    
    import org.zcs.springAop.model.Circle;
    import org.zcs.springAop.model.Triangle;
    
    public class ShapeService { 
    	private Circle circle;
    	private Triangle triangle;
    	public Circle getCircle() { 
    		return circle;
    	}
    	public void setCircle(Circle circle) { 
    		this.circle = circle;
    	}
    	public Triangle getTriangle() { 
    		return triangle;
    	}
    	public void setTriangle(Triangle triangle) { 
    		this.triangle = triangle;
    	}
    	
    }

*  spring.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">
           <aop:aspectj-autoproxy></aop:aspectj-autoproxy>
           <bean name="triangle" class = "org.zcs.springAop.model.Triangle">
           		<property name="name" value = "Triangle name"></property>
           </bean>
           <bean name = "circle" class = "org.zcs.springAop.model.Circle">
           		<property name="name" value = "Circle name"></property>
           </bean>
           <bean name="shapeService" class="org.zcs.springAop.service.ShapeService" autowire = "byName"></bean>
     		<bean name= "loggingAspect" class = "org.zcs.springAop.aspect.LoggingAspect"></bean>
     </beans>

### 3.学习记录。 ###

*  其中bean文件中的头文件来自官网的参考文件中可以找到。
 *  学习了aspect的应用，和在bean中的配置。
 *  复习了bean中的自动装载的知识。

[Search _jar_]: https://www.findjar.com/index.x?query=cglib