[英]Angular2 Headers not set on POST
我知道有很多这样的问题,但是没有一个解决我的问题的。
我是Angular2的新用户,尝试发出POST请求,但未设置我指定的标头...
我的代码是:
import { Injectable } from '@angular/core';
import {Http, Headers} from '@angular/http';
import 'rxjs/add/operator/map';
@Injectable()
export class LoginService {
constructor(private http: Http) {
}
login(email, pass) {
var headers = new Headers();
headers.append('Content-Type', 'application/json');
const user = {"email": email, "password": pass};
console.log(JSON.stringify(headers));
return this.http.post("http://localhost/api/users/login", JSON.stringify(user), {headers: headers}).map(res => res.json());
}
}
当我在Chrome的检查器中查看时,请求标头如下所示:
OPTIONS /api/users/login HTTP/1.1
Host: localhost
Connection: keep-alive
Access-Control-Request-Method: POST
Origin: http://localhost:4200
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.81 Safari/537.36
Access-Control-Request-Headers: content-type
Accept: */*
Referer: http://localhost:4200/
Accept-Encoding: gzip, deflate, sdch, br
Accept-Language: en-US,en;q=0.8
现在不知道为什么它在访问控制请求标头中 ...
顺便说一句:如果我在邮递员中尝试同样的方法,那就很好...
谢谢你的帮助
编辑:忘了提及,如果我将“ application / x-www-form-urlencoded”设置为竞争类型,它的确会显示在请求标头中
您无需为此复杂化,无需向此请求添加Content-Type
,也无需JSON.stringify
模型,下面的此代码即可工作。
import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';
import { Observable } from 'rxjs/Observable';
import 'rxjs/Rx';
@Injectable()
export class LoginService {
constructor(private http: Http) { }
public login(email: string, pass:string): Observable<any>{
let url: string = 'http://localhost/api/users/login';
let body: any = {
email: email,
password: pass
};
return this.http.post(url, body).map((res:Response) => res.json());
}
}
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