人民医院前端

request.js 11KB

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  1. /**
  2. * Request 1.0.6
  3. * @Class Request
  4. * @description luch-request 1.0.6 http请求插件
  5. * @Author lu-ch
  6. * @Date 2020-03-17
  7. * @Email webwork.s@qq.com
  8. * http://ext.dcloud.net.cn/plugin?id=392
  9. */
  10. export default class Request {
  11. config = {
  12. baseUrl: '',
  13. header: {
  14. 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
  15. },
  16. method: 'GET',
  17. dataType: 'json',
  18. // #ifndef MP-ALIPAY || APP-PLUS
  19. responseType: 'text',
  20. // #endif
  21. custom: {},
  22. // #ifdef MP-ALIPAY
  23. timeout: 30000,
  24. // #endif
  25. // #ifdef APP-PLUS
  26. sslVerify: true
  27. // #endif
  28. };
  29. static posUrl(url) {
  30. /* 判断url是否为绝对路径 */
  31. return /(http|https):\/\/([\w.]+\/?)\S*/.test(url);
  32. }
  33. static mergeUrl(url, baseUrl, params) {
  34. let mergeUrl = Request.posUrl(url) ? url : `${baseUrl}${url}`;
  35. if (Object.keys(params).length !== 0) {
  36. const paramsH = Request.addQueryString(params);
  37. mergeUrl += mergeUrl.includes('?') ? `&${paramsH}` : `?${paramsH}`;
  38. }
  39. return mergeUrl;
  40. }
  41. static addQueryString(params) {
  42. let paramsData = '';
  43. Object.keys(params).forEach(function(key) {
  44. paramsData += key + '=' + encodeURIComponent(params[key]) + '&';
  45. });
  46. return paramsData.substring(0, paramsData.length - 1);
  47. }
  48. /**
  49. * @property {Function} request 请求拦截器
  50. * @property {Function} response 响应拦截器
  51. * @type {{request: Request.interceptor.request, response: Request.interceptor.response}}
  52. */
  53. interceptor = {
  54. /**
  55. * @param {Request~requestCallback} cb - 请求之前拦截,接收一个函数(config, cancel)=> {return config}。第一个参数为全局config,第二个参数为函数,调用则取消本次请求。
  56. */
  57. request: cb => {
  58. if (cb) {
  59. this.requestBeforeFun = cb;
  60. }
  61. },
  62. /**
  63. * @param {Request~responseCallback} cb 响应拦截器,对响应数据做点什么
  64. * @param {Request~responseErrCallback} ecb 响应拦截器,对响应错误做点什么
  65. */
  66. response: (cb, ecb) => {
  67. if (cb) {
  68. this.requestComFun = cb;
  69. }
  70. if (ecb) {
  71. this.requestComFail = ecb;
  72. }
  73. }
  74. };
  75. requestBeforeFun(config) {
  76. return config;
  77. }
  78. requestComFun(response) {
  79. return response;
  80. }
  81. requestComFail(response) {
  82. return response;
  83. }
  84. /**
  85. * 自定义验证器,如果返回true 则进入响应拦截器的响应成功函数(resolve),否则进入响应拦截器的响应错误函数(reject)
  86. * @param { Number } statusCode - 请求响应体statusCode(只读)
  87. * @return { Boolean } 如果为true,则 resolve, 否则 reject
  88. */
  89. validateStatus(statusCode) {
  90. return statusCode === 200;
  91. }
  92. /**
  93. * @Function
  94. * @param {Request~setConfigCallback} f - 设置全局默认配置
  95. */
  96. setConfig(f) {
  97. this.config = f(this.config);
  98. }
  99. /**
  100. * @Function
  101. * @param {Object} options - 请求配置项
  102. * @prop {String} options.url - 请求路径
  103. * @prop {Object} options.data - 请求参数
  104. * @prop {Object} [options.responseType = config.responseType] [text|arraybuffer] - 响应的数据类型
  105. * @prop {Object} [options.dataType = config.dataType] - 如果设为 json,会尝试对返回的数据做一次 JSON.parse
  106. * @prop {Object} [options.header = config.header] - 请求header
  107. * @prop {Object} [options.method = config.method] - 请求方法
  108. * @returns {Promise<unknown>}
  109. */
  110. async request(options = {}) {
  111. options.baseUrl = this.config.baseUrl;
  112. options.dataType = options.dataType || this.config.dataType;
  113. // #ifndef MP-ALIPAY || APP-PLUS
  114. options.responseType = options.responseType || this.config.responseType;
  115. // #endif
  116. // #ifdef MP-ALIPAY
  117. options.timeout = options.timeout || this.config.timeout;
  118. // #endif
  119. options.url = options.url || '';
  120. options.data = options.data || {};
  121. options.params = options.params || {};
  122. options.header = options.header || this.config.header;
  123. options.method = options.method || this.config.method;
  124. options.custom = { ...this.config.custom, ...(options.custom || {}) };
  125. // #ifdef APP-PLUS
  126. options.sslVerify =
  127. options.sslVerify === undefined
  128. ? this.config.sslVerify
  129. : options.sslVerify;
  130. // #endif
  131. options.getTask = options.getTask || this.config.getTask;
  132. return new Promise((resolve, reject) => {
  133. let next = true;
  134. const cancel = (t = 'handle cancel', config = options) => {
  135. const err = {
  136. errMsg: t,
  137. config: config
  138. };
  139. reject(err);
  140. next = false;
  141. };
  142. const handleRe = { ...this.requestBeforeFun(options, cancel) };
  143. const _config = { ...handleRe };
  144. if (!next) return;
  145. const requestTask = uni.request({
  146. url: Request.mergeUrl(_config.url, _config.baseUrl, _config.params),
  147. data: _config.data,
  148. header: _config.header,
  149. method: _config.method,
  150. // #ifdef MP-ALIPAY
  151. timeout: _config.timeout,
  152. // #endif
  153. dataType: _config.dataType,
  154. // #ifndef MP-ALIPAY || APP-PLUS
  155. responseType: _config.responseType,
  156. // #endif
  157. // #ifdef APP-PLUS
  158. // sslVerify: _config.sslVerify,
  159. sslVerify: false,
  160. // #endif
  161. complete: response => {
  162. response.config = handleRe;
  163. if (this.validateStatus(response.statusCode)) {
  164. // 成功
  165. // console.log(response)
  166. // if(response.data.state == 'notoken'){
  167. // uni.reLaunch({
  168. // url: '/pages/login/login'
  169. // });
  170. // }
  171. response = this.requestComFun(response);
  172. resolve(response);
  173. } else {
  174. response = this.requestComFail(response);
  175. reject(response);
  176. }
  177. }
  178. });
  179. if (handleRe.getTask) {
  180. handleRe.getTask(requestTask, handleRe);
  181. }
  182. });
  183. }
  184. get(url, params = {}) {
  185. const options = {};
  186. options.params = params;
  187. return this.request({
  188. url,
  189. method: 'GET',
  190. ...options
  191. });
  192. }
  193. post(url, data, options = {}) {
  194. return this.request({
  195. url,
  196. data,
  197. method: 'POST',
  198. ...options
  199. });
  200. }
  201. postJson(url, data, options = {}) {
  202. return this.request({
  203. url,
  204. data,
  205. method: 'POST',
  206. ...options
  207. });
  208. }
  209. // #ifndef MP-ALIPAY
  210. put(url, data, options = {}) {
  211. return this.request({
  212. url,
  213. data,
  214. method: 'PUT',
  215. ...options
  216. });
  217. }
  218. // #endif
  219. // #ifdef APP-PLUS || H5 || MP-WEIXIN || MP-BAIDU
  220. delete(url, data, options = {}) {
  221. return this.request({
  222. url,
  223. data,
  224. method: 'DELETE',
  225. ...options
  226. });
  227. }
  228. // #endif
  229. // #ifdef APP-PLUS || H5 || MP-WEIXIN
  230. connect(url, data, options = {}) {
  231. return this.request({
  232. url,
  233. data,
  234. method: 'CONNECT',
  235. ...options
  236. });
  237. }
  238. // #endif
  239. // #ifdef APP-PLUS || H5 || MP-WEIXIN || MP-BAIDU
  240. head(url, data, options = {}) {
  241. return this.request({
  242. url,
  243. data,
  244. method: 'HEAD',
  245. ...options
  246. });
  247. }
  248. // #endif
  249. // #ifdef APP-PLUS || H5 || MP-WEIXIN || MP-BAIDU
  250. options(url, data, options = {}) {
  251. return this.request({
  252. url,
  253. data,
  254. method: 'OPTIONS',
  255. ...options
  256. });
  257. }
  258. // #endif
  259. // #ifdef APP-PLUS || H5 || MP-WEIXIN
  260. trace(url, data, options = {}) {
  261. return this.request({
  262. url,
  263. data,
  264. method: 'TRACE',
  265. ...options
  266. });
  267. }
  268. // #endif
  269. upload(
  270. url,
  271. {
  272. // #ifdef APP-PLUS
  273. files,
  274. // #endif
  275. // #ifdef MP-ALIPAY
  276. fileType,
  277. // #endif
  278. filePath,
  279. name,
  280. header,
  281. formData = {},
  282. custom = {},
  283. params = {},
  284. getTask
  285. }
  286. ) {
  287. return new Promise((resolve, reject) => {
  288. let next = true;
  289. const globalHeader = { ...this.config.header };
  290. delete globalHeader['content-type'];
  291. delete globalHeader['Content-Type'];
  292. const pubConfig = {
  293. baseUrl: this.config.baseUrl,
  294. url,
  295. // #ifdef MP-ALIPAY
  296. fileType,
  297. // #endif
  298. filePath,
  299. method: 'UPLOAD',
  300. name,
  301. header: header || globalHeader,
  302. formData,
  303. params,
  304. custom: { ...this.config.custom, ...custom },
  305. getTask: getTask || this.config.getTask
  306. };
  307. // #ifdef APP-PLUS
  308. if (files) {
  309. pubConfig.files = files;
  310. }
  311. // #endif
  312. const cancel = (t = 'handle cancel', config = pubConfig) => {
  313. const err = {
  314. errMsg: t,
  315. config: config
  316. };
  317. reject(err);
  318. next = false;
  319. };
  320. const handleRe = { ...this.requestBeforeFun(pubConfig, cancel) };
  321. const _config = {
  322. url: Request.mergeUrl(handleRe.url, handleRe.baseUrl, handleRe.params),
  323. // #ifdef MP-ALIPAY
  324. fileType: handleRe.fileType,
  325. // #endif
  326. filePath: handleRe.filePath,
  327. name: handleRe.name,
  328. formData: handleRe.formData,
  329. complete: response => {
  330. response.config = handleRe;
  331. if (typeof response.data === 'string') {
  332. response.data = JSON.parse(response.data);
  333. }
  334. if (this.validateStatus(response.statusCode)) {
  335. // 成功
  336. response = this.requestComFun(response);
  337. resolve(response);
  338. } else {
  339. response = this.requestComFail(response);
  340. reject(response);
  341. }
  342. }
  343. };
  344. // #ifdef APP-PLUS
  345. if (handleRe.files) {
  346. _config.files = handleRe.files;
  347. }
  348. // #endif
  349. if (!next) return;
  350. const requestTask = uni.uploadFile(_config);
  351. if (handleRe.getTask) {
  352. handleRe.getTask(requestTask, handleRe);
  353. }
  354. });
  355. }
  356. download(url, options = {}) {
  357. return new Promise((resolve, reject) => {
  358. let next = true;
  359. const pubConfig = {
  360. baseUrl: this.config.baseUrl,
  361. url,
  362. method: 'DOWNLOAD',
  363. header: options.header || this.config.header,
  364. params: options.params || {},
  365. custom: { ...this.config.custom, ...(options.custom || {}) },
  366. getTask: options.getTask || this.config.getTask
  367. };
  368. const cancel = (t = 'handle cancel', config = pubConfig) => {
  369. const err = {
  370. errMsg: t,
  371. config: config
  372. };
  373. reject(err);
  374. next = false;
  375. };
  376. const handleRe = { ...this.requestBeforeFun(pubConfig, cancel) };
  377. if (!next) return;
  378. const requestTask = uni.downloadFile({
  379. url: Request.mergeUrl(handleRe.url, handleRe.baseUrl, handleRe.params),
  380. header: handleRe.header,
  381. complete: response => {
  382. response.config = handleRe;
  383. if (this.validateStatus(response.statusCode)) {
  384. // 成功
  385. response = this.requestComFun(response);
  386. resolve(response);
  387. } else {
  388. response = this.requestComFail(response);
  389. reject(response);
  390. }
  391. }
  392. });
  393. if (handleRe.getTask) {
  394. handleRe.getTask(requestTask, handleRe);
  395. }
  396. });
  397. }
  398. }
  399. /**
  400. * setConfig回调
  401. * @return {Object} - 返回操作后的config
  402. * @callback Request~setConfigCallback
  403. * @param {Object} config - 全局默认config
  404. */
  405. /**
  406. * 请求拦截器回调
  407. * @return {Object} - 返回操作后的config
  408. * @callback Request~requestCallback
  409. * @param {Object} config - 全局config
  410. * @param {Function} [cancel] - 取消请求钩子,调用会取消本次请求
  411. */
  412. /**
  413. * 响应拦截器回调
  414. * @return {Object} - 返回操作后的response
  415. * @callback Request~responseCallback
  416. * @param {Object} response - 请求结果 response
  417. */
  418. /**
  419. * 响应错误拦截器回调
  420. * @return {Object} - 返回操作后的response
  421. * @callback Request~responseErrCallback
  422. * @param {Object} response - 请求结果 response
  423. */