spring aop---獲取代理類所傳入的引數及方法名等
* 使用者管理介面
* @author MyPC
*
*/
public interface UserManager {
public void addUser(String username, String password);
public void deleteUser(int id);
public void modifyUser(int id, String username, String password);
public String findUserById(int id);
}
/**
* 實現使用者管理介面
* @author MyPC
*
*/
public class UserManagerImpl implements UserManager {
public void addUser(String username, String password) {
System.out.println("----------UserManagerImpl.addUser-------------");
}
public void deleteUser(int id) {
System.out.println("----------UserManagerImpl.deleteUser-------------");
}
public String findUserById(int id) {
System.out.println("----------UserManagerImpl.findUserById-------------");
return null;
}
public void modifyUser(int id, String username, String password) {
System.out.println("----------UserManagerImpl.modifyUser-------------");
}
}
/**
* 許可權切面
* @author MyPC
*
*/
public class SecurityHandler{
public void checkSecurity(JoinPoint joinpoint)
{
Object[] args=joinpoint.getArgs();
for (int i = 0; i < args.length; i++) {
System.out.println(args[i]); //輸出傳入的引數
}
System.out.println(joinpoint.getSignature().getName()); //呼叫的方法名
System.out.println("---------許可權檢測--------------");
}
}
/**
* 測試spring aop
* @author MyPC
*
*/
public class Client {
public static void main(String[] args) {
BeanFactory factory=new ClassPathXmlApplicationContext("applicationContext.xml");
UserManager userManager=(UserManager) factory.getBean("userManager");
userManager.addUser("張三", "123456");
}
}
applicationContext.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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<bean id="userManager" class="com.kk.spring.aop.UserManagerImpl"/>
<bean id="securityHandler" class="com.kk.spring.aop.SecurityHandler"/>
<aop:config>
<aop:aspect ref="securityHandler">
<aop:pointcut expression="execution(* add*(..))" id="allAddMethod"/>
<aop:before method="checkSecurity" pointcut-ref="allAddMethod"/>
</aop:aspect>
</aop:config>
</beans>