135 lines
4.9 KiB
TypeScript
135 lines
4.9 KiB
TypeScript
import { Injectable } from '@angular/core';
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import {
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Http, Response, Headers, RequestOptions, URLSearchParams, RequestOptionsArgs, RequestMethod
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} from '@angular/http';
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/**
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* http服务
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*/
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@Injectable()
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export class HttpService {
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constructor(private http: Http) {}
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public request(url: string, options: RequestOptionsArgs, success: Function, error: Function): any {
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// this.spinService.spin(true);
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this.http.request(url, options).subscribe(res => {
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// this.spinService.spin(false);
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success(res.ok, res.json(), res);
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}, err => {
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// this.spinService.spin(false);
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//处理请求失败
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let msg = this.requestFailed(url, options, err);
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error(err.ok, msg, err);
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});
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}
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public get(url: string, paramMap: any = null, success: Function=function(successful, data, res){}, error: Function=function(successful, msg, err){}): any {
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return this.request(url, new RequestOptions({
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method: RequestMethod.Get,
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search: HttpService.buildURLSearchParams(paramMap)
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}), success, error);
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}
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public post(url: string, body: any = null, success: Function=function(successful, data, res){}, error: Function=function(successful, msg, err){}): any {
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return this.request(url, new RequestOptions({
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method: RequestMethod.Post,
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body: body,
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headers: new Headers({
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'Content-Type': 'application/json; charset=UTF-8'
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})
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}), success, error);
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}
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public postFormData(url: string, paramMap: any = null, success: Function=function(successful, data, res){}, error: Function=function(successful, msg, err){}): any {
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return this.request(url, new RequestOptions({
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method: RequestMethod.Post,
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search: HttpService.buildURLSearchParams(paramMap).toString(),
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headers: new Headers({
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'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
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})
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}), success, error);
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}
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public put(url: string, body: any = null, success: Function=function(successful, data, res){}, error: Function=function(successful, msg, err){}): any {
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return this.request(url, new RequestOptions({
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method: RequestMethod.Put,
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body: body
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}), success, error);
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}
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public delete(url: string, paramMap: any = null, success: Function=function(successful, data, res){}, error: Function=function(successful, msg, err){}): any {
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return this.request(url, new RequestOptions({
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method: RequestMethod.Delete,
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search: HttpService.buildURLSearchParams(paramMap).toString()
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}), success, error);
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}
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public patch(url: string, body: any = null, success: Function=function(successful, data, res){}, error: Function=function(successful, msg, err){}): any {
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return this.request(url, new RequestOptions({
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method: RequestMethod.Patch,
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body: body
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}), success, error);
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}
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public head(url: string, paramMap: any = null, success: Function=function(successful, data, res){}, error: Function=function(successful, msg, err){}): any {
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return this.request(url, new RequestOptions({
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method: RequestMethod.Head,
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search: HttpService.buildURLSearchParams(paramMap).toString()
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}), success, error);
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}
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public options(url: string, paramMap: any = null, success: Function=function(successful, data, res){}, error: Function=function(successful, msg, err){}): any {
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return this.request(url, new RequestOptions({
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method: RequestMethod.Options,
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search: HttpService.buildURLSearchParams(paramMap).toString()
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}), success, error);
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}
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/**
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* 将对象转为查询参数
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* @param paramMap
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* @returns {URLSearchParams}
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*/
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private static buildURLSearchParams(paramMap): URLSearchParams {
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let params = new URLSearchParams();
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if (!paramMap) {
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return params;
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}
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for (let key in paramMap) {
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let val = paramMap[key];
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// if (val instanceof Date) {
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// val = Utils.dateFormat(val, 'yyyy-MM-dd hh:mm:ss')
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// }
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params.set(key, val);
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}
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return params;
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}
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/**
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* 处理请求失败事件
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* @param url
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* @param options
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* @param err
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*/
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private requestFailed(url: string, options: RequestOptionsArgs, err) {
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let msg = '请求发生异常', status = err.status;
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if (status === 0) {
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msg = '请求失败，请求响应出错';
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} else if (status === 404) {
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msg = '请求失败，未找到请求地址';
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} else if (status === 500) {
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msg = '请求失败，服务器出错，请稍后再试';
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} else {
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msg = "未知错误，请检查网络";
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}
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return msg;
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}
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} |