axios入门资源-CSDN下载

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Axios 是一个基于 promise 的 HTTP 库，它在浏览器和 Node.js 中都可以使用。这个库因其易用性、灵活性和强大的功能而在 JavaScript 开发者中非常流行。在本文中，我们将深入探讨 Axios 的基本用法，帮助你快速入门。 ### 1. 安装 Axios 在开始使用 Axios 之前，你需要先安装它。如果你使用的是 npm（Node Package Manager），可以在终端运行以下命令： ```bash npm install axios ``` 如果你是前端开发者，并且使用的是现代的构建工具如 Webpack 或者 Rollup，也可以通过 CDN 直接引入 Axios 到你的项目中： ```html <script src="https://unpkg.com/axios/dist/axios.min.js"></script> ``` ### 2. 创建请求 Axios 提供了简洁的 API 来发起 HTTP 请求。例如，要发送一个 GET 请求，你可以这样做： ```javascript axios.get('https://api.example.com') .then(function (response) { console.log(response.data); }) .catch(function (error) { if (error.response) { // 请求已发出，但服务器响应的状态码不在2xx范围内 console.log(error.response.data); console.log(error.response.status); console.log(error.response.headers); } else { // 发生了一些问题，请求未发出 console.log(error.message); } }); ``` ### 3. POST 请求与数据传递对于 POST 请求，你需要提供额外的数据。例如，向服务器发送一个 JSON 对象： ```javascript axios.post('https://api.example.com/submit', { key1: 'value1', key2: 'value2' }) .then(function (response) { console.log(response.data); }) .catch(function (error) { // 错误处理 }); ``` ### 4. 处理响应 Axios 的 `.then` 方法返回的 promise 解析为一个响应对象，包含 `data`（服务器响应的数据）、`status`（HTTP 状态码）、`statusText`（HTTP 状态消息）、`headers`（响应头）以及 `config`（发起请求时的配置对象）等属性。 ### 5. 请求配置你可以通过配置对象自定义 Axios 请求的行为。比如设置超时时间、自定义请求头、指定响应格式等： ```javascript axios.get('https://api.example.com', { timeout: 5000, // 设置超时时间为5秒 headers: {'X-Custom-Header': 'foobar'}, // 添加自定义请求头 responseType: 'json' // 响应类型设为 JSON }) ``` ### 6. 请求拦截器 Axios 允许你设置请求和响应的拦截器。例如，在请求发送前添加一个通用的请求头： ```javascript axios.interceptors.request.use(function (config) { config.headers.common['Authorization'] = 'Bearer ' + token; return config; }, function (error) { // 错误处理 return Promise.reject(error); }); ``` ### 7. 响应拦截器同样，你也可以对响应进行拦截，例如处理全局的错误： ```javascript axios.interceptors.response.use( function (response) { // 对响应数据做点什么 return response; }, function (error) { if (error.response.status === 401) { // 未授权，重定向到登录页 window.location.href = '/login'; } return Promise.reject(error); } ); ``` ### 8. 批量请求（Promise.all）如果你需要并发发起多个请求，可以使用 `Promise.all`： ```javascript let requests = [ axios.get('url1'), axios.post('url2', { data }), // 更多请求... ]; Promise.all(requests) .then(responses => { responses.forEach(response => { console.log(response.data); }); }) .catch(error => { // 错误处理 }); ``` ### 9. 文件上传 Axios 支持使用 `FormData` 进行文件上传： ```javascript let formData = new FormData(); formData.append('file', file); axios.post('upload-url', formData, { headers: { 'Content-Type': 'multipart/form-data' } }) .then(response => { console.log(response.data); }) .catch(error => { // 错误处理 }); ``` ### 10. 配合 Vue.js 使用在 Vue.js 项目中，你可以创建一个 Axios 实例并注入到 Vue.prototype，方便在组件中使用： ```javascript import axios from 'axios'; Vue.prototype.$http = axios; ``` 然后在组件中，你就可以这样调用： ```javascript this.$http.get('url').then(response => { // 处理响应 }); ``` 以上就是 Axios 入门的基本知识，通过这些内容，你应该能够理解如何使用 Axios 进行 HTTP 请求。在实际开发中，你还可以根据需求探索更多高级特性，如取消请求、URL 参数序列化、自定义适配器等。

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axios入门axios入门axios入门（2002个子文件）

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<img align="right" alt="Ajv logo" width="160" src="https://ajv.js.org/images/ajv_logo.png"> # Ajv: Another JSON Schema Validator The fastest JSON Schema validator for Node.js and browser. Supports draft-04/06/07. [![Build Status](https://travis-ci.org/ajv-validator/ajv.svg?branch=master)](https://travis-ci.org/ajv-validator/ajv) [![npm](https://img.shields.io/npm/v/ajv.svg)](https://www.npmjs.com/package/ajv) [![npm (beta)](https://img.shields.io/npm/v/ajv/beta)](https://www.npmjs.com/package/ajv/v/7.0.0-beta.0) [![npm downloads](https://img.shields.io/npm/dm/ajv.svg)](https://www.npmjs.com/package/ajv) [![Coverage Status](https://coveralls.io/repos/github/ajv-validator/ajv/badge.svg?branch=master)](https://coveralls.io/github/ajv-validator/ajv?branch=master) [![Gitter](https://img.shields.io/gitter/room/ajv-validator/ajv.svg)](https://gitter.im/ajv-validator/ajv) [![GitHub Sponsors](https://img.shields.io/badge/$-sponsors-brightgreen)](https://github.com/sponsors/epoberezkin) ## Ajv v7 beta is released [Ajv version 7.0.0-beta.0](https://github.com/ajv-validator/ajv/tree/v7-beta) is released with these changes: - to reduce the mistakes in JSON schemas and unexpected validation results, [strict mode](./docs/strict-mode.md) is added - it prohibits ignored or ambiguous JSON Schema elements. - to make code injection from untrusted schemas impossible, [code generation](./docs/codegen.md) is fully re-written to be safe. - to simplify Ajv extensions, the new keyword API that is used by pre-defined keywords is available to user-defined keywords - it is much easier to define any keywords now, especially with subschemas. - schemas are compiled to ES6 code (ES5 code generation is supported with an option). - to improve reliability and maintainability the code is migrated to TypeScript. **Please note**: - the support for JSON-Schema draft-04 is removed - if you have schemas using "id" attributes you have to replace them with "\$id" (or continue using version 6 that will be supported until 02/28/2021). - all formats are separated to ajv-formats package - they have to be explicitely added if you use them. See [release notes](https://github.com/ajv-validator/ajv/releases/tag/v7.0.0-beta.0) for the details. To install the new version: ```bash npm install ajv@beta ``` See [Getting started with v7](https://github.com/ajv-validator/ajv/tree/v7-beta#usage) for code example. ## Mozilla MOSS grant and OpenJS Foundation [<img src="https://www.poberezkin.com/images/mozilla.png" width="240" height="68">](https://www.mozilla.org/en-US/moss/)     [<img src="https://www.poberezkin.com/images/openjs.png" width="220" height="68">](https://openjsf.org/blog/2020/08/14/ajv-joins-openjs-foundation-as-an-incubation-project/) Ajv has been awarded a grant from Mozilla’s [Open Source Support (MOSS) program](https://www.mozilla.org/en-US/moss/) in the “Foundational Technology” track! It will sponsor the development of Ajv support of [JSON Schema version 2019-09](https://tools.ietf.org/html/draft-handrews-json-schema-02) and of [JSON Type Definition](https://tools.ietf.org/html/draft-ucarion-json-type-definition-04). Ajv also joined [OpenJS Foundation](https://openjsf.org/) – having this support will help ensure the longevity and stability of Ajv for all its users. This [blog post](https://www.poberezkin.com/posts/2020-08-14-ajv-json-validator-mozilla-open-source-grant-openjs-foundation.html) has more details. I am looking for the long term maintainers of Ajv – working with [ReadySet](https://www.thereadyset.co/), also sponsored by Mozilla, to establish clear guidelines for the role of a "maintainer" and the contribution standards, and to encourage a wider, more inclusive, contribution from the community. ## Please [sponsor Ajv development](https://github.com/sponsors/epoberezkin) Since I asked to support Ajv development 40 people and 6 organizations contributed via GitHub and OpenCollective - this support helped receiving the MOSS grant! Your continuing support is very important - the funds will be used to develop and maintain Ajv once the next major version is released. Please sponsor Ajv via: - [GitHub sponsors page](https://github.com/sponsors/epoberezkin) (GitHub will match it) - [Ajv Open Collective️](https://opencollective.com/ajv) Thank you. #### Open Collective sponsors <a href="https://opencollective.com/ajv"><img src="https://opencollective.com/ajv/individuals.svg?width=890"></a> <a href="https://opencollective.com/ajv/organization/0/website"><img src="https://opencollective.com/ajv/organization/0/avatar.svg"></a> <a href="https://opencollective.com/ajv/organization/1/website"><img src="https://opencollective.com/ajv/organization/1/avatar.svg"></a> <a href="https://opencollective.com/ajv/organization/2/website"><img src="https://opencollective.com/ajv/organization/2/avatar.svg"></a> <a href="https://opencollective.com/ajv/organization/3/website"><img src="https://opencollective.com/ajv/organization/3/avatar.svg"></a> <a href="https://opencollective.com/ajv/organization/4/website"><img src="https://opencollective.com/ajv/organization/4/avatar.svg"></a> <a href="https://opencollective.com/ajv/organization/5/website"><img src="https://opencollective.com/ajv/organization/5/avatar.svg"></a> <a href="https://opencollective.com/ajv/organization/6/website"><img src="https://opencollective.com/ajv/organization/6/avatar.svg"></a> <a href="https://opencollective.com/ajv/organization/7/website"><img src="https://opencollective.com/ajv/organization/7/avatar.svg"></a> <a href="https://opencollective.com/ajv/organization/8/website"><img src="https://opencollective.com/ajv/organization/8/avatar.svg"></a> <a href="https://opencollective.com/ajv/organization/9/website"><img src="https://opencollective.com/ajv/organization/9/avatar.svg"></a> ## Using version 6 [JSON Schema draft-07](http://json-schema.org/latest/json-schema-validation.html) is published. [Ajv version 6.0.0](https://github.com/ajv-validator/ajv/releases/tag/v6.0.0) that supports draft-07 is released. It may require either migrating your schemas or updating your code (to continue using draft-04 and v5 schemas, draft-06 schemas will be supported without changes). __Please note__: To use Ajv with draft-06 schemas you need to explicitly add the meta-schema to the validator instance: ```javascript ajv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-06.json')); ``` To use Ajv with draft-04 schemas in addition to explicitly adding meta-schema you also need to use option schemaId: ```javascript var ajv = new Ajv({schemaId: 'id'}); // If you want to use both draft-04 and draft-06/07 schemas: // var ajv = new Ajv({schemaId: 'auto'}); ajv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-04.json')); ``` ## Contents - [Performance](#performance) - [Features](#features) - [Getting started](#getting-started) - [Frequently Asked Questions](https://github.com/ajv-validator/ajv/blob/master/FAQ.md) - [Using in browser](#using-in-browser) - [Ajv and Content Security Policies (CSP)](#ajv-and-content-security-policies-csp) - [Command line interface](#command-line-interface) - Validation - [Keywords](#validation-keywords) - [Annotation keywords](#annotation-keywords) - [Formats](#formats) - [Combining schemas with $ref](#ref) - [$data reference](#data-reference) - NEW: [$merge and $patch keywords](#merge-and-patch-keywords) - [Defining custom keywords](#defining-custom-keywords) - [Asynchronous schema compilation](#asynchronous-schema-compilation) - [Asynchronous validation](#asynchronous-validation) - [Security considerations](#security-considerations) - [Security contact](#security-contact) - [Untrusted schemas](#untrusted-schemas) - [Circular references in objects](#circular-references-in-javascript-objects) - [Trusted schemas](#security-risks-of-trusted-schemas) - [ReDoS attack](#redos-attack) - Modifying data during validation - [Filtering

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