Question

我想用一个方面来为私有的 ID 字段添加获取和设置。我知道如何通过一个方面添加一个方法, 但我如何访问私有的 ID 字段?

我承认我必须使这个方面具有权威性。我尝试了以下的代码,但这个方面无法进入身份字段。

public privileged aspect MyAspect {

public String Item.getId(){

    return this.id;
}

博客文章http://blog.m1key.me/2011/05/aop-aspectj-field-app-aspectj-field- access-to-inejct.html> rel=“noreferr”>http://blog.m1key.me/2011/05/aop-aspectj-field-acct.html

反省是唯一的可能性,

Answer 1

我刚刚测试了它,它运行。这是我的完整代码:

package com.example;

public class ClassWithPrivate {
    private String s = "myStr";
}

==========

package com.example.aspect;

import com.example.ClassWithPrivate;

privileged public aspect AccessPrivate {

    public String ClassWithPrivate.getS() {
        return this.s;
    }

    public void ClassWithPrivate.setS(String str) {
        this.s = str;
    }
}

==========

package com.example;

public class TestPrivate {

    public static void main(String[] args) {

        ClassWithPrivate test = new ClassWithPrivate();
        System.out.println(test.getS());
        test.setS("hello");
        System.out.println(test.getS());
    }
}

If for some reason, that does not work for you, you can use reflection, or another way as described here: https://web.archive.org/web/20161215045930/http://blogs.vmware.com/vfabric/2012/04/using-aspectj-for-accessing-private-members-without-reflection.html However, according to the benchmarks, it may not be worth it.

友情链接