代理模式深度指南：构建控制访问的艺术
The article provides an in-depth guide to the Proxy Design Pattern in software architecture. It explains how this pattern serves as an intermediary to control access to real objects, enhancing performance and security. Various types of proxies, such as remote, virtual, and protection proxies, are discussed along with practical implementation examples in Python.
- ▪The Proxy Design Pattern is a structural design pattern that provides a substitute or placeholder for another object to control access to it.
- ▪Different types of proxies include remote proxies for distributed services, virtual proxies for lazy loading, and protection proxies for access control.
- ▪Implementing the proxy pattern can significantly improve system performance and security by decoupling access logic from business logic.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3824850) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } 架构师小白 Posted on May 21 代理模式深度指南：构建控制访问的艺术 #architecture #designpatterns #python #tutorial 代理模式深度指南：构建控制访问的艺术 在软件架构中，代理模式是一种结构型设计模式，它为另一个对象提供一个替代品或占位符，以控制对该对象的访问。本文将深入探讨代理模式的原理、实现方式和实战应用。 为什么需要代理模式？ 想象一下，你需要访问一个远程服务。每次直接调用远程对象都会产生网络延迟。但如果你能在本地放置一个"替身"，让它处理一些常见请求，只有必要时才真正访问远程服务，性能将大幅提升。 这就是代理模式的核心思想：用一个中介来控制对真实对象的访问。 代理模式的组成 代理模式包含四个核心角色： Subject（抽象主题）：定义了 RealSubject 和 Proxy 的公共接口 RealSubject（真实主题）：真正执行业务逻辑的对象 Proxy（代理）：持有 RealSubject 的引用，在需要时创建真实对象 Client（客户端）：通过 Proxy 访问真实对象…
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