angular 4多语言并从数据库中获取数据

因此,首先要设置默认语言是将TranslateService注入到负责翻译的组件中.然后在构造函数中你将不得不向DB做一些简单的请求.这是一个非常简单的概念如何解决它(例如从ngx-translate文档中取得近1比1)：

import {Component} from '@angular/core';
import {TranslateService} from '@ngx-translate/core';

@Component({
    selector: 'app',template: `
    <div>{{ 'HELLO' | translate:param }}</div>
`
})
export class AppComponent {
param = {value: 'world'};

constructor(translate: TranslateService) {
    let lang;
    //here will be your request to recive language from DB
    translate.setDefaultLang(lang);
    // this language will be used as a fallback when a translation isn't found in the current language

    //of course do not forget about error handling if something fails!
    translate.use('en');
    // the lang to use,if the lang isn't available,it will use the current loader to get them
    }
}

去做一些关于ngx-translate的研究它真的很棒,作者提供了一些很好的例子.

我知道我跳过了对DB的实际请求,但是有很多地方可以阅读它,like this one(官方Angular文档).