Angular get post 请求数据
准备工作
Angular5.x 以后 get、post 和和服务器交互使用的是 HttpClientModule 模块。
1、在 app.module.ts 中引入 HttpClientModule 并注入
import {HttpClientModule} from '@angular/common/http';
imports: [ BrowserModule, HttpClientModule ]
2、在用到的地方引入 HttpClient 并在构造函数声明
import {HttpClient,HttpHeaders} from "@angular/common/http";
constructor(public http:HttpClient) {}
Angular get 请求数据
var api = "/api/productlist"; this.http.get(api).subscribe(response => {console.log(response); });
Angular post 提交数据
const httpOptions = {headers: new HttpHeaders({'Content-Type': 'application/json' }) };var api = "http://127.0.0.1:3000/doLogin"; this.http.post(api,{username:'张三',age:'20'},httpOptions).subscribe(response => {console.log(response); });
Angular Jsonp请求数据
1、在 app.module.ts 中引入 HttpClientModule、HttpClientJsonpModule 并注入
import {HttpClientModule,HttpClientJsonpModule} from '@angular/common/http';
imports: [ BrowserModule, HttpClientModule, HttpClientJsonpModule ]
2、在用到的地方引入 HttpClient 并在构造函数声明
import {HttpClient} from "@angular/common/http";
constructor(public http:HttpClient) {}
3、jsonp 请求数据
var api = "/api/productlist"; this.http.jsonp(api,'callback').subscribe(response => {console.log(response); });
Angular 中使用第三方模块 axios 请求数据
1、安装 axios
cnpm install axios --save
2、用到的地方引入 axios
import axios from 'axios';
3、使用
axios.get('/user?ID=12345') .then(function (response) {// handle success console.log(response); }).catch(function (error) {// handle error console.log(error); }).then(function () {// always executed });
