我正在尝试将来自组件的输入值保存到我的数据服务中,例如输入用户名和输入密码,单击它会从服务中进行后调用,但实际输入位于一个单独的组件中,其中数据服务已导入。
如何绑定输入中的数据,以将其添加到数据服务中的变量中?
更新:我设法在 DataService 和我的组件之间转换数据。下面是代码。
更新 v2:我现在收到一个新错误“预检响应中的 Access-Control-Allow-Headers 不允许请求标头字段 Content-Type。” 试图解决这个问题。
更新v3:我设法让一切正常,检查下面的答案!
数据服务:
import { HttpClient, HttpRequest } from '@angular/common/http';
import { Injectable } from '@angular/core';
@Injectable()
export class DataService {
username:string = '';
password:string = '';
convioURL:string;
loginMethod:string;
constructor(private http: HttpClient) {}
getData() {
this.convioURL = 'https://testurl.com/';
this.loginMethod = '?testMethod&user_name='+ this.username +'&password='+ this.password +'&response_format=json';
const req = new HttpRequest('POST', this.convioURL + this.loginMethod, {
reportProgress: true
});
return this.http.request(req);
}
usernameKey(value: string) {
this.username + value;
}
passwordKey(value: string) {
this.password + value;
}
}
零件:
import { Component, OnInit } from '@angular/core';
import { HttpEvent, HttpEventType } from '@angular/common/http';
import { DataService } from '../data.service';
import * as $ from 'jquery';
@Component({
selector: 'app-step-01',
templateUrl: './step-01.component.html',
styleUrls: ['./step-01.component.scss']
})
export class Step01Component implements OnInit {
data: any;
usernameInput: any;
passwordInput: any;
constructor(private dataService: DataService) {
}
ngOnInit() {
}
usernameKey(event: any) {
this.dataService.username = event.target.value;
}
passwordKey(event: any) {
this.dataService.password = event.target.value;
}
private getLoggedIn() {
this.dataService.getData().subscribe((event: HttpEvent<any>) => {
switch (event.type) {
case HttpEventType.Sent:
console.log('Request sent!');
break;
case HttpEventType.ResponseHeader:
console.log('Response header received!');
break;
case HttpEventType.DownloadProgress:
const kbLoaded = Math.round(event.loaded / 1024);
console.log(`Download in progress! ${kbLoaded}Kb loaded`);
break;
case HttpEventType.Response:
console.log(' Done!', event.body);
this.data = event.body;
console.log(this.data);
}
});
}
}
这是我的 jQuery 代码,它工作得非常好,但我试图远离在这个应用程序上使用 jQuery,我希望能够以 angular5/typescript 的方式编写它。希望这可以帮助大家理解我正在尝试做的事情。
$("#ssoForm").submit(function(e) {
e.preventDefault();
var username = $('#username').val();
var password = $('#password').val();
var apiURL = 'http://testurl.com/?';
var loginMethod = 'testMethod&user_name='+ username +'&password='+ password +'&response_format=json';
$.post(apiURL + loginMethod,
function(data) {
if (data) {
var json = $.parseJSON(data)
console.log(json);
var consID = json.loginResponse.cons_id;
var ssoUser = 'fakeusername';
var ssoPassword = 'fakepassword';
var ssoMethod = 'fakeSSOMethod&response_format=json&login_name='+ ssoUser +'&login_password='+ ssoPassword + '&cons_id='+ consID;
$.post(apiURL + ssoMethod, function(ssoData) {
var res = $.parseJSON(ssoData);
console.log(res);
});
} else {
console.log('No Data!');
}
});
});
组件模板:
<form id="ssoForm">
<table>
<tr>
<td>User Name:</td>
<td><input id="username" name=user_name type=text size=15 maxlength="100" #box (keyup)="usernameKey($event)"></td>
</tr>
<tr>
<td>Password:</td>
<td><input id="password" name=password type=password size=15 maxlength="100" #box2 (keyup)="passwordKey($event)"></td>
</tr>
<tr>
<td>Remember Me:</td>
<td><input name=remember_me type=checkbox></td>
</tr>
</table>
<input (click)="getLoggedIn()" type="submit"/>
</form>