SpringAOP02后置增强AfterReturningAdvice
package com.test.springadvicetype;import org.springframework.stereotype.Component;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 服务员类
*/
@Component
public class Waiter {
/**
* 服务
* @param name
*/
public String serve(String name) {
System.out.println(name + ",您好,很高兴为您服务。");
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
return name + ",您好,现在是北京时间" + format.format(new Date());
}
/**
* 开车
* @param name
*/
public void driving(String name) {
throw new RuntimeException(name + ",您好,禁止酒后驾车!");
}
}
2、后置增强,实现 AfterReturningAdvice 接口
package com.test.springadvicetype.afterretuningadvice;import org.springframework.aop.AfterReturningAdvice;
import org.springframework.stereotype.Component;
import java.lang.reflect.Method;
/**
* 后置增强
*/
@Component
public class SpringAfterReturningAdvice implements AfterReturningAdvice {
@Override
public void afterReturning(Object returnValue, Method method, Object[] args, Object target)
throws Throwable {
String methodName = method.getName();
System.out.printf("AfterReturningAdvice增强的方法返回值是:%s%n", returnValue);
System.out.printf("AfterReturningAdvice增强的方法是:%s%n", methodName);
System.out.printf("AfterReturningAdvice增强的方法的参数是:%s%n", args[0]);
System.out.printf("AfterReturningAdvice增强的对象是:%s%n", target);
}
}
3、xml配置 spring-chapter3-springaoptype.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"
xmlns:context="http://www.springframework.org/schema/context"
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 http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 开启注解扫描 -->
<context:component-scan base-package="com.test.springadvicetype"/>
</beans>
4、运行代码
package com.test.springadvicetype.afterretuningadvice;import org.springframework.aop.AfterReturningAdvice;
import org.springframework.stereotype.Component;
import java.lang.reflect.Method;
/**
* 后置增强
*/
@Component
public class SpringAfterReturningAdvice implements AfterReturningAdvice {
@Override
public void afterReturning(Object returnValue, Method method, Object[] args, Object target)
throws Throwable {
String methodName = method.getName();
System.out.printf("AfterReturningAdvice增强的方法返回值是:%s%n", returnValue);
System.out.printf("AfterReturningAdvice增强的方法是:%s%n", methodName);
System.out.printf("AfterReturningAdvice增强的方法的参数是:%s%n", args[0]);
System.out.printf("AfterReturningAdvice增强的对象是:%s%n", target);
}
}
5、运行结果
Spring后置增强测试==========我是分割线==========
Michael,您好,很高兴为您服务。
AfterReturningAdvice增强的方法返回值是:Michael,您好,现在是北京时间2020-01-28 10:27:56
AfterReturningAdvice增强的方法是:serve
AfterReturningAdvice增强的方法的参数是:Michael
AfterReturningAdvice增强的对象是:com.test.springadvicetype.Waiter@2e32ccc5
==========我是分割线==========
Tommy,您好,很高兴为您服务。
AfterReturningAdvice增强的方法返回值是:Tommy,您好,现在是北京时间2020-01-28 10:27:56
AfterReturningAdvice增强的方法是:serve
AfterReturningAdvice增强的方法的参数是:Tommy
AfterReturningAdvice增强的对象是:com.test.springadvicetype.Waiter@2e32ccc5
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