zj-Exercise/CocosCreator/RopingCattle/assets/scripts/HttpUtils.js

class HttpUtils{
    request(option) {
        if (String(option) !== '[object Object]') return undefined
        option.method = option.method ? option.method.toUpperCase() : 'GET'
        option.data = option.data || {}
        var formData = []
        for (var key in option.data) {
            formData.push(''.concat(key, '=', option.data[key]))
        }
        option.data = formData.join('&')

        if (option.method === 'GET') {
            option.url += location.search.length === 0 ? ''.concat('?', option.data) : ''.concat('&', option.data)
        }

        var xhr = new XMLHttpRequest()
        xhr.responseType = option.responseType || 'json'
        xhr.onreadystatechange = function () {
            if (xhr.readyState === 4) {
                if (xhr.status === 200) {
                    if (option.success && typeof option.success === 'function') {
                        option.success(xhr.response)
                    }
                } else {
                    if (option.error && typeof option.error === 'function') {
                        option.error()
                    }
                }
            }
        }
        xhr.open(option.method, option.url, true)
        if (option.method === 'POST') {
            xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded')
        }
        xhr.send(option.method === 'POST' ? option.data : null)
    }
}

//导出
module.exports = new HttpUtils();