跨域资源共享（ CORS ）问题一直是前端开发者的噩梦，尤其是在构建复杂 Java 应用时。传统的解决方案，如服务器端配置、 JSONP 、代理服务器等，往往增加了开发复杂度和维护成本。但随着 Java 生态系统的不断发展，我们迎来了更简洁、更优雅的解决方案。本文将深入探讨如何利用 Java 新特性，轻松解决跨域难题。

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