通过create创建了一个新的axios实例
// 创建了一个新的axios实例const service = axios.create({baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url// withCredentials: true, // send cookies when cross-domain requeststimeout: 5000 // 超时时间})
请求拦截器：请求拦截器主要处理 token的统一注入问题
// axios的请求拦截器
service.interceptors.request.use(
config => {
// do something before request is sent
if (store.getters.token) {
// let each request carry token
// ['X-Token'] is a custom headers key
// please modify it according to the actual situation
config.headers['X-Token'] = getToken()
}
return config
},
error => {
// do something with request error
console.log(error) // for debug
return Promise.reject(error)
}
)
响应拦截器：响应拦截器主要处理 返回的**`数据异常`** 和**`数据结构`**问题
// 响应拦截器
service.interceptors.response.use(
response => {
const res = response.data
// if the custom code is not 20000, it is judged as an error.
if (res.code !== 20000) {
Message({
message: res.message || 'Error',
type: 'error',
duration: 5 * 1000
})
if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
// to re-login
MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
confirmButtonText: 'Re-Login',
cancelButtonText: 'Cancel',
type: 'warning'
}).then(() => {
store.dispatch('user/resetToken').then(() => {
location.reload()
})
})
}
return Promise.reject(new Error(res.message || 'Error'))
} else {
return res
}
},
error => {
console.log('err' + error) // for debug
Message({
message: error.message,
type: 'error',
duration: 5 * 1000
})
return Promise.reject(error)
}
)
大概使用流程：
// 导出一个axios的实例 而且这个实例要有请求拦截器 响应拦截器
import axios from 'axios'
const service = axios.create() // 创建一个axios的实例
service.interceptors.request.use() // 请求拦截器
service.interceptors.response.use() // 响应拦截器
export default service // 导出axios实例
