vue 请求axios二次封装
配置网络请求的通用项
我们通常会遇到一些业务:例如 接口请求的超时时间、header等。在axios中，提供了request拦截器.我们在对应的回调函数中根据相应的业务做处理即可。
import axios from 'axios'
axios.interceptors.request.use((config) => {
// 接口请求可在此处统一处理
return config
}, (err) => {
// 接口请求出错可在此处统一处理
return Promise.resolve(err)
})
对接口请求失败、异常的统一处理
axios.interceptors.response.use((data) => {
// 数据统一校验处理
return data
}, (err) => {
// 数据异常统一处理 例如
if (err.response.status === 504 || err.response.status === 404) {
alert('服务器被吃了')
} else if (err.response.status === 403) {
alert('权限不足,请联系管理员')
} else {
alert('未知错误')
}
return Promise.resolve(err)
})
封装axios
xios中提供了各种参数配置，我们接下来就封装部分参数，用来我们开发的工具。
{
// 接口请求路径
url: '/user',
// 接口请求方式，默认为get
method: 'get', // default
// 当url不是绝对路径的时候，会将此参数拼接在url之前。 默认空
baseURL: 'https://some-domain.com/api/',
// 提前处理接口请求参数 支持 POST PUT PATCH
transformRequest: [function (data, headers) {
// Do whatever you want to transform the data
return data;
}],
// 预先处理请求结果
// it is passed to then/catch
transformResponse: [function (data) {
// Do whatever you want to transform the data
return data;
}],
// 自定义请求头
headers: {
'X-Requested-With': 'XMLHttpRequest'},
// 请求参数
params: {
ID: 12345
},
// 请求参数序列化 可选
paramsSerializer: function(params) {
return Qs.stringify(params, {
arrayFormat: 'brackets'})
},
// 上传数据
data: {
firstName: 'Fred'
},
// 超时时间
timeout: 1000,
// 证书验证
withCredentials: false, // default
// `adapter` allows custom handling of requests which makes testing easier.
// Return a promise and supply a valid response (see lib/adapters/README.md).
adapter: function (config) {
/* ... */
},
// 支持授权验证 如jira等
auth: {
username: 'janedoe',
password: 's00pers3cret'
},
// 接口请求返回接口类型
responseType: 'json', // default
// `xsrfCookieName` is the name of the cookie to use as a value for xsrf token
xsrfCookieName: 'XSRF-TOKEN', // default
// `xsrfHeaderName` is the name of the http header that carries the xsrf token value
xsrfHeaderName: 'X-XSRF-TOKEN', // default
// 上传进度
// `onUploadProgress` allows handling of progress events for uploads
onUploadProgress: function (progressEvent) {
// Do whatever you want with the native progress event
},
//下载进度
// `onDownloadProgress` allows handling of progress events for downloads
onDownloadProgress: function (progressEvent) {
// Do whatever you want with the native progress event
},
// `maxContentLength` defines the max size of the http response content allowed
maxContentLength: 2000,
// `validateStatus` defines whether to resolve or reject the promise for a given
// HTTP response status code. If `validateStatus` returns `true` (or is set to `null`
// or `undefined`), the promise will be resolved; otherwise, the promise will be
// rejected.
validateStatus: function (status) {
return status >= 200 && status < 300; // default
},
// `maxRedirects` defines the maximum number of redirects to follow in node.js.
// If set to 0, no redirects will be followed.
maxRedirects: 5, // default
// `httpAgent` and `httpsAgent` define a custom agent to be used when performing http
// and https requests, respectively, in node.js. This allows options to be added like
// `keepAlive` that are not enabled by default.
httpAgent: new http.Agent({
keepAlive: true }),
httpsAgent: new https.Agent({
keepAlive: true }),
// 'proxy' defines the hostname and port of the proxy server
// Use `false` to disable proxies, ignoring environment variables.
// `auth` indicates that HTTP Basic auth should be used to connect to the proxy, and
// supplies credentials.
// This will set an `Proxy-Authorization` header, overwriting any existing
// `Proxy-Authorization` custom headers you have set using `headers`.
proxy: {
host: '127.0.0.1',
port: 9000,
auth: {
username: 'mikeymike',
password: 'rapunz3l'
}
},
// `cancelToken` specifies a cancel token that can be used to cancel the request
// (see Cancellation section below for details)
cancelToken: new CancelToken(function (cancel) {
})
}
完整的代码文件
https.js文件代码
/**
* Created by BruceLv on 2018/1/22.
*/
import axios from 'axios'
let base = 'https://httpbin.org/'
axios.interceptors.request.use((config) => {
return config
}, (err) => {
alert('请求超时')
return Promise.resolve(err)
})
axios.interceptors.response.use((data) => {
// 数据统一校验处理
return data
}, (err) => {
// 数据异常统一处理
if (err.response.status === 504 || err.response.status === 404) {
alert('服务器被吃了')
} else if (err.response.status === 403) {
alert('权限不足,请联系管理员')
} else {
alert('未知错误')
}
return Promise.resolve(err)
})
export function postRequest(url, params) {
return axios({
method: 'post',
url: `${
base}${
url}`,
data: params,
transformRequest: [function (data) {
let ret = ''
for (let it in data) {
ret += encodeURIComponent(it) + '=' + encodeURIComponent(data[it]) + '&'
}
return ret
}],
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
})
}
export function uploadFileRequest(url, params) {
return axios({
method: 'post',
url: `${
base}${
url}`,
data: params,
headers: {
'Content-Type': 'multipart/form-data'
}
})
}
export function putRequest(url, params) {
return axios({
method: 'put',
url: `${
base}${
url}`,
data: params,
transformRequest: [function (data) {
let ret = ''
for (let it in data) {
ret += encodeURIComponent(it) + '=' + encodeURIComponent(data[it]) + '&'
}
return ret
}],
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
})
}
export function deleteRequest(url) {
return axios({
method: 'delete',
url: `${
base}${
url}`
})
}
export function getRequest(url) {
return axios({
method: 'get',
url: `${
base}${
url}`
})
}