Pointcut is malformed: Pointcut is not well-formed: expecting 'identifier' at character position 0 ^

错误提示：

解决方法：指定execution

在执行目标方法之前指定execution

例如：

import org.aspectj.lang.annotation.Aspect;

import org.aspectj.lang.annotation.Before;

import org.springframework.stereotype.Component;

//把这个类声明为一个切面，需要把该类放入到IOC容器中

@Aspect

@Component

public class LoggingAspect {

//声明该方法是一个前置通知：在目标方法之前执行

@Before("execution(public int lixiuming.spring.aop.impl.ArithmeticCaculator.add(int, int) )")

public void beforeMethod(){

System.out.println("the method begins with");

}

}

接口：

import org.springframework.stereotype.Service;

@Service

public interface ArithmeticCaculator {

int add(int i,int j);

int sub(int i,int j);

int mul(int i,int j);

int div(int i,int j);

}

测试方法：

public class Main {

public static void main(String[] args) {

ApplicationContext cxt = new ClassPathXmlApplicationContext("ApplicationContext.xml");

ArithmeticCaculator arithmeticCaculator =  cxt.getBean(ArithmeticCaculator.class);

int result = arithmeticCaculator.add(3, 6);

System.out.println("result:"+result);

}

}

实现方法：

import org.springframework.stereotype.Component;

@Component

public class ArithmeticCaculatorImpl2 implements ArithmeticCaculator {

@Override

public int add(int i, int j) {

int result = i+j;

return result;

}

@Override

public int sub(int i, int j) {

int result = i-j;

return result;

}

@Override

public int mul(int i, int j) {

int result = i*j;

return result;

}

@Override

public int div(int i, int j) {

int result = i/j;

return result;

}

}