在 app.module.ts 中引入 HttpClientModule 并注入

import {HttpClientModule} from '@angular/common/http';imports: [ BrowserModule, HttpClientModule]

Angular get 请求数据

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) { }

get 请求数据

var api = "http://a.itying.com/api/productlist";this.http.get(api).subscribe(response => { console.log(response);});

Angular post 提交数据

在用到的地方引入 HttpClient、HttpHeaders 并在构造函数声明 HttpClient

import {HttpClient,HttpHeaders} from "@angular/common/http";constructor(public http:HttpClient) { }

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

在 app.module.ts 中引入 HttpClientModule、HttpClientJsonpModule 并注入

import {HttpClientModule,HttpClientJsonpModule} from'@angular/common/http';imports: [ BrowserModule, HttpClientModule, HttpClientJsonpModule]

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) { }

jsonp 请求数据

var api = "http://a.itying.com/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

安装 axios

cnpm install axios --save

用到的地方引入 axios

import axios from 'axios';axios.get('/user?ID=12345').then(function (response) {// handle successconsole.log(response);}).catch(function (error) {// handle errorconsole.log(error);}).then(function () {// always executed});

封装service作为http服务

import { Injectable } from '@angular/core';import axios from 'axios';@Injectable({ providedIn: 'root'})export class HttpserviceService { constructor() { } axiosGet(api){ return new Promise((resolve,reject)=>{ axios.get(api) .then(function (response) { // handle success resolve(response) }); }) } }

总结

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，谢谢大家对的支持。