请求头必须手动设置
首先引入HTTP模块
import { Component, OnInit } from '@angular/core';
import { HttpClient,HttpHeaders } from '@angular/common/http'
constructor(public http:HttpClient) { }
使用
doLogin(){
const httpOptions = {
headers: new HttpHeaders({ 'Content-Type': 'application/jsom'})}
let api:string = 'api地址'
this.http.post(api,{'username':'张三','age':18},httpOptions).subscribe(res=>{
console.log(res);
})
}