我创建了一个 Controller 方法,在解决 reCaptcha 后将验证码响应发送到 google 服务器,并且请求返回验证码响应 JSON。如果验证码响应为 =="success"
, Controller 方法返回 true
,否则返回 false
。
请求是通过http POST发送的,但我面临的问题是:在POST请求后收到响应后如何从 Controller 方法获取 bool 值?
Controller 方法:
{
if(ModelState.IsValid)
{
bool success = false;
var client = new System.Net.WebClient();
string PrivateKey = "6LeiumYUAAAAAMS0kU0OYXaDK0BxHO7KJqx2zO7l";
var GoogleReply = client.DownloadString(string.Format("https://www.google.com/recaptcha/api/siteverify?secret={0}&response={1}", PrivateKey, Model.RecaptchaResponse));
var captchaResponse = Newtonsoft.Json.JsonConvert.DeserializeObject<ReCaptchaController>(GoogleReply);
success = captchaResponse.Success.ToLower() == "true" ? true : false;
return Ok(success);
}
return BadRequest();
}
[JsonProperty("success")]
public string Success
{
get { return m_Success; }
set { m_Success = value; }
}
private string m_Success;
[JsonProperty("error-codes")]
public List<string> ErrorCodes
{
get { return m_ErrorCodes; }
set { m_ErrorCodes = value; }
}
private List<string> m_ErrorCodes;
}
DataService 中的 POST 请求:
//Http Post request for server-side reCAPTCHA validation
checkRecaptcha(url: string, data: Object): Observable<boolean> {
this.timerService.resetTimer();
return this.http.post(url, JSON.stringify(data), this.sharedService.getRequestHeaders())
.map((response: Response) => {
return response.json() as boolean
})
.catch((response: Response) => {
return Observable.throw(response);
});
}
app.component.ts:
resolved(captchaResponse: string) {
let data = {
RecaptchaResponse: captchaResponse
};
let result = this.dataService.checkRecaptcha('api/recaptcha/validate', data);
console.log(result);
}
在 chrome 调试中我得到一个 Observable:http://prntscr.com/ke5eeo
最佳答案
行 return response.json() as boolean
返回可观察值,而不是您的 checkRecaptcha
函数。您需要监听您自己的 checkRecaptcha
返回的 Observable:
this.dataService.checkRecaptcha('api/recaptcha/validate', data).subscribe(
(result: boolean) => console.log(result)
);
关于Angular 4 get函数在http post请求后返回值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51668013/