AspectJ切入點內省本地方法的代碼，並打印內部本地方法

Question

我試圖寫一個切入點和建議可能從以下方法打印字符串的變量 -

public CustomerDto getCustomer(Integer customerCode){   
      CustomerDto customerDto = new CustomerDto();   
      String emailID =getEmailAddress(); 
      customerDto.setEmailAddress(emailID);    
      customerDto.setEmployer(getEmployer()); 
      customerDto.setSpouseName(getSpouse()); 
      return customerDto;  
} 

我無法找出一個切入點查看字符串emailID的方式，然後在建議中打印相同的值。

Answer 1

也許你需要像下面這樣：

public privileged aspect LocalMethodCallAspect { 
    private pointcut localMethodExecution() : withincode(public CustomerDto TargetClass.getCustomer(Integer)) && 
     call(private String TargetClass.getEmailAddress()); 

    after() returning(String email) : localMethodExecution() 
    { 
     System.out.println(email); 
    } 
} 

哪裏TargetClass是包含getCustomer()和getEmailAddress()方法的類。

或者相同的使用@AspectJ：

@Aspect 
public class LocalMethodCallAnnotationDrivenAspect { 
    @Pointcut("withincode(public CustomerDto TargetClass.getCustomer(Integer)) && " + 
      "call(private String TargetClass.getEmailAddress())") 
    private void localMethodExecution() { 

    } 

    @AfterReturning(pointcut="localMethodExecution()",returning="email") 
    public void printingEmail(String email) { 
     System.out.println(email); 
    } 
}