[英]Angular 2 unauthorized response(401)
我正在編寫一個需要用戶身份驗證才能訪問某些功能的應用程序。 通過身份驗證的用戶登錄后,服務器將生成JSON Web令牌(JWT)。 我將生成的令牌保存在localstorage中。 要發布,刪除和更新數據庫中的某些數據,標頭中需要憑據。 我使用angular io文檔來設置請求標頭。 但是,當我發出發布請求時,得到未經授權的響應(401)。 這是發布請求和標題
createItem(name: string, text: string) {
const body = JSON.stringify({noteData: {name: name, text: text}});
const headers = new Headers();
const token = localStorage.getItem('token');
headers.append('Content-Type', 'application/text' );
headers.append('Authorization', 'Bearer ' + token);
const options = new RequestOptions({ headers: headers });
return this._http.post(this.createNote, body, options)
.map(this.extractData);
}
private extractData(res: Response) {
return res.text() ? res.json() : {};
}
//這是請求標頭錯誤響應
Request URL:http://localhost:4500/api/notes
Request Method:POST
Status Code:401 Unauthorized
Remote Address:[::1]:4500
Referrer Policy:no-referrer-when-downgrade
Access-Control-Allow-Origin:*
Connection:keep-alive
Content-Length:0
Date:Wed, 26 Jul 2017 03:08:45 GMT
Vary:Origin
X-Powered-By:Express
Accept:application/json, text/plain, */*
Accept-Encoding:gzip, deflate, br
Accept-Language:en-US,en;q=0.8
Authorization:Bearer "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6IjM3ZTY3MDQ3LTY0MjQtNDZkMi04NjI0LTdhZmVlYjMyZTdlZiJ9.NEKOQpQIsjYpUHKh061Jl_9-Zz_Ude5MkcsGrOLetKU"
Cache-Control:no-cache
Connection:keep-alive
Content-Length:43
Content-Type:application/text
Host:localhost:4500
Origin:http://localhost:4200
Pragma:no-cache
Referer:http://localhost:4200/note
User-Agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36
//用於登錄和設置本地存儲的函數
login(username: string, password: string) {
const body = JSON.stringify({username: username, password: password});
const headers = new Headers();
headers.append( 'Content-Type', 'application/json' );
const options = new RequestOptions({ headers: headers });
return this._http.post(this.loginUser, body, options)
.map((res: Response) => {
const token = res.json() && res.json().token;
if (token) {
localStorage.setItem('token',JSON.stringify(res.json().token));
}
})
.catch((error: any) =>
Observable.throw(error.json().error || 'Server error'));
}
在Bearer之后添加一個空格:
createItem(name: string, text: string) {
const body = JSON.stringify({noteData: {name: name, text: text}});
const headers = new Headers();
const token = localStorage.getItem('token');
headers.append('Content-Type', 'application/text' );
headers.append('Authorization', 'Bearer ' + token); //<-- added space after 'Bearer'
const options = new RequestOptions({ headers: headers });
return this._http.post(this.createNote, body, options)
.map(this.extractData);
}
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