109 lines
3.5 KiB
TypeScript
109 lines
3.5 KiB
TypeScript
/**
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* Http管理器
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*
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*/
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import { sys } from "cc";
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import SubManager from "../../Sub/SubManager";
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export class HttpManager {
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private static _I: HttpManager | null = null;
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public static get I(): HttpManager {
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if (!HttpManager._I) HttpManager._I = new HttpManager();
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return HttpManager._I;
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}
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private constructor() {}
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/**
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* 发送请求
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* @param url 接口地址
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* @param data 消息字符串 (json格式)
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* @param method 请求方式
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* @param bLock 是否锁定屏幕
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* @param formData 是否formData
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* @returns
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*/
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public async send(url: string, data: any, method: "GET" | "POST" | "PUT" = "GET") {
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console.log("[Http] 请求Url:",url, " 方式:", method, " 数据:", data);
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var xhr = new XMLHttpRequest();
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xhr.timeout = 10000;
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if (method == 'GET') {
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url = url + encodeURI(this.jsonToQueryString(data));
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xhr.open(method, url, true);
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if (sys.isNative) {
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xhr.setRequestHeader("Accept-Encoding", "gzip,deflate");
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xhr.setRequestHeader("content-type", "text/html;charset=utf-8");
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}
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} else {
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xhr.open(method, url, true);
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xhr.setRequestHeader("Content-type", "application/json");
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}
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let self = this;
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return new Promise((resolve, reason) => {
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self.quest(xhr, method, data).then(value => {
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resolve(value);
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}).catch(err => {
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resolve(null);
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});
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});
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}
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/**
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* 把对象转 ?a=1&b=2 的查询串
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*/
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private jsonToQueryString(json: any) {
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var str = '';
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if (typeof json == "object") {
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str = "?";
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for (var k in json) {
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if (str != "?") {
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str += "&";
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}
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str += encodeURIComponent(k) + "=" + encodeURIComponent(json[k]);
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}
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}
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return str;
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}
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/**
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* 统一封装 XHR 的发送与状态回调
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*/
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private async quest(xhr: XMLHttpRequest, method: "GET" | "POST" | "PUT" = "GET", data: Object) {
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return new Promise((resolve, reason) => {
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xhr.onreadystatechange = () => {
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if (xhr.readyState == 4) {
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if (xhr.status >= 200 && xhr.status < 300) {
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console.log("[Http] 返回", xhr.response);
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try {
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resolve(JSON.parse(xhr.response));
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} catch (e) {
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reason(e);
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}
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} else {
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reason(xhr.status)
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}
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}
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};
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xhr.onerror = (error) => {
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console.error("http request onerror");
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SubManager.ShowPrompt("网络错误，请检查网络连接");
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reason(error)
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};
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xhr.ontimeout = (e) => {
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console.error("http request timeout");
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SubManager.ShowPrompt("网络错误，请检查网络连接");
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reason(e)
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}
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//根据POST和GET方式，选择是否发送msg数据
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if (method == 'POST') {
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xhr.send(JSON.stringify(data));
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} else if (method == 'PUT') {
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xhr.send(JSON.stringify(data));
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} else {
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xhr.send();
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}
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});
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}
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} |