在Angular2中,可以通过使用Observables来从HTTP POST方法中获取返回值。以下是一种常见的实现方式: 首先,确保已经导入了必要的模块和服务。在组件文件的顶部添加以下导入语句: 代码语言:typescript 复制 import { HttpClient } from '@angular/common/http'; import { Observable } from 'rxjs'; import { ...
公司的项目前端部分现在改用angular,一切从头学起,今天记录一下关于数据请求的问题,由于get的请求方式比较简单,与post也类似,所以就单独讲讲post方式。 文档上post数据的写法有好几种,都是利用$http模块,通用写法如下: //Simple GET request example:$http({ method:'GET', url:'/someUrl'}).then(functionsucces...
1httpPostExample() {2this.http.post("/courses/-KgVwECOnlc-LHb_B0cQ.json",3{4"courseListIcon": "...",5"description": "TEST",6"iconUrl": "..",7"longDescription": "...",8"url": "new-url"9})10.subscribe(11(val) =>{12console.log("POST call successful value returned in bod...
('第一个请求成功',response1);this.http.post('https://api.example.com/resource2',{data:'data2'}).subscribe(response2=>{console.log('第二个请求成功',response2);this.http.post('https://api.example.com/resource3',{data:'data3'}).subscribe(response3=>{console.log('第三个请求成功',...
this.http.post(url, {"id": 22, "email": "1452478563@qq.com", "last_name": "苹果"}).pipe( catchError((e) => { console.log(e.error.error) return throwError(e); }) map() ) .subscribe((response) => { console.log(response) ...
Refer to our tutorial onAngular HTTP get example&Angular HTTP Post Example TheHttpParmswere known asURLSearchParamsuntil Angular 4 Applies to: Angular 5 to the latest edition i.e. Angular 8, Angular 9. Angular 10, Angular 11 Table of Contents ...
.post() .put() The methods above are all shortcuts of calling the $http service: Example varapp = angular.module('myApp', []); app.controller('myCtrl',function($scope, $http) { $http({ method :"GET", url :"welcome.htm"
options: The HTTP options of typeobject. Returns HTTP POST returns the observable response of typestring. Example constconfigUrl='http://localhost:3000/users';constparams=newHttpParams({fromObject:{Name:'name',Email:'email',Role:'role',Status:'Inactive',MobileNumber:1234567890}});varheaders=new...
ng build --prod was throwing the error mentioned in the post title. At that point, ng version gives the following: Angular CLI: 6.0.3 Node: 10.0.0 OS: linux x64 Angular: 6.0.2 ... animations, common, compiler, compiler-cli, core, forms ... http, language-service, platform-browser...
this.http .get("/api/simulate-error") .catch( error => { // here we can show an error message to the user, // for example via a service console.error("error catched", error); return Observable.of({description: "Error Value Emitted"}); }) .subscribe( val => console.log('Value...