get(), post(), etc. Each handler may define one or more of these methods to handle different HTTP actions. As described above, these methods will be called with arguments corresponding to the capturing groups groups of the routing rule that matched. Within a handler, call methods such as RequestHandler.render or RequestHandler.write to produce a response. render() loads a Template by name and renders it with JSON). Many methods in RequestHandler are designed to be overridden in subclasses and be used throughout the application. It is common to define a BaseHandler class that overrides methods such as write_error

Queue example - a concurrent web spider Structure of a Tornado web application Templates and UI Authentication and security Running and deploying Web framework tornado.web — RequestHandler and Application RequestHandler methods Error Handling Redirection Asynchronous handlers Templates and UI Configuring templates Template syntax Security Internationalization UI modules Authentication and security Cookies Cookies and signed cookies User authentication Third party authentication Cross-site request forgery protection DNS Rebinding Running and deploying Processes and ports Running behind a load balancerStatic

简体中文版 编写一个猜数字游戏 让我们一起动手完成一个项目来快速上手 Rust！本章将介绍一些 Rust 中常见的概念，并通过 真实的程序来展示如何运用它们。你将会学到 let、match、方法（methods）、关联函数 （associated functions）、外部 crate 等知识！后续章节会深入探讨这些概念的细节。在这一 章，我们将主要练习基础内容。 我们会实现一个经典的新手编程问题： async fn next(&mut self) -> Option where Self: Unpin; // other methods... } 420/562Rust 程序设计语言 简体中文版 注意：本章之前用到的实际定义与这个看起来略有不同，因为它需要支持还不支持在 trait 中使用异步函数的 Rust 版本。因此，它看起来像这样： packages both data and the procedures that operate on that data. The procedures are typically called methods or operations. 面向对象的程序由对象组成。一个对象包含数据和操作这些数据的过程。这些过程通 常被称为方法 或操作。 在这个定义下，Rust 是面向对象的：结构体和枚举包含数据而