从Angular 2中的config.json获取数据

时间:2016-06-20 14:30:27

标签: angular

我想从配置文件加载所有网址。我创建了名为'config.json'的json文件,ConfigurationService.ts来按键获取URL。但我无法按键获取URL。

config.json:

{
"loginUrl": "http:example/login",
"verifyUrl": "http:example/verify"
}

ConfigurationService.ts:

import {Injectable} from '@angular/core';
import {Http, Response} from '@angular/http';
import {Headers, RequestOptions} from '@angular/http';
import {Observable} from 'rxjs/Observable';

@Injectable()
export class ConfigurationService {
constructor(private http:Http) {}

private result: Object;

getConfiguration(key) {
    return this.http.get('./app/config/config.json').map(res => {
        res.json();
        this.result = res._body;
        return this.result[key]; //returns 'undefined', but when I return only 'this.result'  it shows me all json data {...}
    });
}
}

auth_service.ts的一部分:

private x =this.configurationService.getConfiguration("verifyUrl").subscribe((result) => console.log(result));

我如何仅收到loginUrl?

1 个答案:

答案 0 :(得分:5)

我认为您正在寻找的是:

getConfiguration(key) {
    return this.http.get('./app/config/config.json').map(res => {
        this.result = res.json();
        return this.result[key];
    });
}