我有一个运行Visual Studio Code的Angular2 / TypeScript应用程序.
在VS 2015中运行的API.这是API项目：http://www.asp.net/web-api/overview/security/individual-accounts-in-web-api
我可以使用API并创建新用户,但是当我尝试登录(使用令牌功能)时,我收到以下错误：
XMLHttpRequest无法加载https://localhost:44305/Token.预检的响应具有无效的HTTP状态代码400
标题看起来像这样：
Request URL:https://localhost:44305/Token Request Method:OPTIONS Status Code:400 Remote Address:[::1]:44305 Response Headers cache-control:no-cache content-length:34 content-type:application/json;charset=UTF-8 date:Wed,10 Aug 2016 19:12:57 GMT expires:-1 pragma:no-cache server:Microsoft-IIS/10.0 status:400 x-powered-by:ASP.NET x-sourcefiles:=?UTF-8?B?QzpcQ2hlY2tvdXRcQVBJXzJ2czJcQVBJXEFQSVxUb2tlbg==?= Request Headers :authority:localhost:44305 :method:OPTIONS :path:/Token :scheme:https accept:*/* accept-encoding:gzip,deflate,sdch,br accept-language:en-US,en;q=0.8,da;q=0.6,nb;q=0.4 access-control-request-headers:authorization access-control-request-method:POST cache-control:no-cache origin:http://evil.com/ pragma:no-cache referer:http://localhost:3000/signin user-agent:Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/52.0.2743.116 Safari/537.36
我的角度服务看起来像这样：
loginAccount(account: Account): Observable<string> {
var obj = { Email: account.Email,Password: account.Password,grant_type: 'password' };
let headers = new Headers({ 'Content-Type': 'application/json' });
let options = new RequestOptions( {method: RequestMethod.Post,headers: headers });
let body = JSON.stringify(obj);
console.log('loginAccount with:' + body);
return this._http.post('https://localhost:44305/Token',body,options)
.map(this.extractData)
.catch(this.handleError);
}
当我在API项目中使用AJAX函数时：http://www.asp.net/web-api/overview/security/individual-accounts-in-web-api然后它工作正常吗？我在Angular POST请求中做错了什么？
我找到了解决方案.感谢API网站上的评论：
http://www.asp.net/web-api/overview/security/individual-accounts-in-web-api
我必须为application / x-www-form-urlencoded设置正确的标头; charset = UTF-8并序列化我发布的对象.我找不到Angular序列化器方法,因此我在JavaScript中创建了自己的(从另一个stackoverflow站点复制).
当用户登录API并请求令牌时,这是最后一次调用,当使用Angular2&打字稿：
loginAccount(account: Account): Observable<string> {
var obj = { UserName: account.Email,grant_type: 'password' };
let headers = new Headers({ 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' });
let options = new RequestOptions( {method: RequestMethod.Post,headers: headers });
let body = this.serializeObj(obj);
return this._http.post('https://localhost:44305/Token',options)
.map(this.extractData)
.catch(this.handleError);
}
private serializeObj(obj) {
var result = [];
for (var property in obj)
result.push(encodeURIComponent(property) + "=" + encodeURIComponent(obj[property]));
return result.join("&");
}
