Myrequest.js

import {notification} from 'ant-design-vue';

const codeMessage = {
    200: '服务器成功返回请求的数据。',
    201: '新建或修改数据成功。',
    202: '一个请求已经进入后台排队(异步任务)。',
    204: '删除数据成功。',
    400: '发出的请求有错误,服务器没有进行新建或修改数据的操作。',
    401: '用户没有权限(令牌、用户名、密码错误)。',
    403: '用户得到授权,但是访问是被禁止的。',
    404: '发出的请求针对的是不存在的记录,服务器没有进行操作。',
    406: '请求的格式不可得。',
    410: '请求的资源被永久删除,且不会再得到的。',
    422: '当创建一个对象时,发生一个验证错误。',
    500: '服务器发生错误,请检查服务器。',
    502: '网关错误。',
    503: '服务不可用,服务器暂时过载或维护。',
    504: '网关超时。'
};
function checkStatus(response) {
    if (response.status >= 200 && response.status < 300) {
        return response;
    }
    const errortext = codeMessage[response.status] || response.statusText;
    notification.error({
        message: `请求错误 ${response.status}: ${response.url}`,
        description: errortext
    });
    const error = new Error(errortext);
    error.name = response.status;
    error.response = response;
    throw error;
}

/**
 * Requests a URL, returning a promise.
 *
 * @param  {string} url       The URL we want to request
 * @param  {object} [options] The options we want to pass to "fetch"
 * @return {object}           An object containing either "data" or "err"
 */
export default function request(url, options) {
    const defaultOptions = {
        // credentials: 'include',
    };
    const newOptions = {...defaultOptions, ...options};
    if (newOptions.method === 'POST' || newOptions.method === 'PUT') {
        if (!(newOptions.body instanceof FormData)) {
            newOptions.headers = {
                Accept: 'application/json',
                'Content-Type': 'application/json; charset=utf-8',
                ...newOptions.headers
            };
            newOptions.body = JSON.stringify(newOptions.body);
        } else {
            // newOptions.body is FormData
            newOptions.headers = {
                Accept: 'application/json',
                ...newOptions.headers
            };
        }
    }

    return fetch(url, newOptions)
        .then(checkStatus)
        .then(response => {
            if (newOptions.method === 'DELETE' || response.status === 204) {
                return response.text();
            }
            return response.json();
        })
        .catch(e => {
            const status = e.name;
            if (status === 401) {
                window.location.hash = '#/user/login';
                return;
            }
            if (status === 403) {
                window.location.hash = '#/exception/403';
                return;
            }
            if (status <= 504 && status >= 500) {
                window.location.hash = '#/exception/500';
                return;
            }
            if (status >= 404 && status < 422) {
                window.location.hash = '#/exception/404';
                return;
            }
        });
}