5

我是 Angular 2 的新手，我在 ngx-translate 组件中有以下问题（通过服务器上的 Http 请求的 URL 必须是绝对的。URL：./assets/i18n/en.json）。我确信这个 en.json 文件在那里，因为我向它发出 http 请求并且请求成功

这是我的 app.module.server.ts 文件：

import { NgModule } from '@angular/core';
import { ServerModule } from '@angular/platform-server';
import { sharedConfig } from './app.module.shared';
import { HttpModule, Http } from '@angular/http';
import {
    TranslateModule,
    TranslateLoader,
    MissingTranslationHandler,
    MissingTranslationHandlerParams
} from '@ngx-translate/core';
import { TranslateHttpLoader } from '@ngx-translate/http-loader';

export function createTranslateLoader(http: Http) {
    return new TranslateHttpLoader(http, './assets/i18n/', '.json');
}

export class MyMissingTranslationHandler implements MissingTranslationHandler {
    handle(params: MissingTranslationHandlerParams) {
        return '[' + params.key + ']';
    }
}

@NgModule({
    bootstrap: sharedConfig.bootstrap,
    declarations: sharedConfig.declarations,
    imports: [
        ServerModule,
        HttpModule,
        TranslateModule.forRoot({
            loader: {
                provide: TranslateLoader,
                useFactory: (createTranslateLoader),
                deps: [Http]
            }
        }),
        ...sharedConfig.imports
    ]
})
export class AppModule {
}

这是我的 app.module.cleint.ts 文件：

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { HttpModule,Http } from '@angular/http';
import { sharedConfig } from './app.module.shared';
import {
    TranslateModule,
    TranslateLoader,
    MissingTranslationHandler,
    MissingTranslationHandlerParams
} from '@ngx-translate/core';
import { TranslateHttpLoader } from '@ngx-translate/http-loader';
export function createTranslateLoader(http: Http) {
    return new TranslateHttpLoader(http, './assets/i18n/', '.json');
}

export class MyMissingTranslationHandler implements MissingTranslationHandler {
    handle(params: MissingTranslationHandlerParams) {
        return '[' + params.key + ']';
    }
}

@NgModule({
    bootstrap: sharedConfig.bootstrap,
    declarations: sharedConfig.declarations,
    imports: [
        BrowserModule,
        FormsModule,
        HttpModule,
        TranslateModule.forRoot({
            loader: {
                provide: TranslateLoader,
                useFactory: (createTranslateLoader),
                deps: [Http]
            }
        }),
        ...sharedConfig.imports
    ],
    providers: [
        { provide: 'ORIGIN_URL', useValue: location.origin },
        {
            provide: MissingTranslationHandler,
            useClass: MyMissingTranslationHandler
        }
    ]
})
export class AppModule {
}

这是我的 app.module.shared.ts 文件：

import { NgModule } from '@angular/core';
import { RouterModule } from '@angular/router';
import { HttpModule, Http } from "@angular/http";
import { BrowserModule } from "@angular/platform-browser";

import { TranslateModule} from '@ngx-translate/core';

import { AppComponent } from './components/app/app.component'
import { NavMenuComponent } from './components/navmenu/navmenu.component';
import { HomeComponent } from './components/home/home.component';
import { FetchDataComponent } from './components/fetchdata/fetchdata.component';
import { EmployeesListComponent } from './components/employees/EmployeesList.component';
import { CounterComponent } from './components/counter/counter.component';

export const sharedConfig: NgModule = {
    bootstrap: [AppComponent],
    declarations: [
        AppComponent,
        NavMenuComponent,
        CounterComponent,
        FetchDataComponent,
        EmployeesListComponent,
        HomeComponent
    ],
    imports: [
        RouterModule.forRoot([
            { path: '', redirectTo: 'home', pathMatch: 'full' },
            { path: 'home', component: HomeComponent },
            { path: 'counter', component: CounterComponent },
            { path: 'fetch-data', component: FetchDataComponent },
            { path: 'employees-list', component: EmployeesListComponent },
            { path: '**', redirectTo: 'home' }
        ]),
        BrowserModule,
        HttpModule,TranslateModule
    ]
    , exports: [
        TranslateModule
    ]
};
4

1 回答 1

2

那么问题就是这个。./assets/i18n/en.json 不是一个绝对网址，例如：http: //foo.com/assets/i18n/en.json。我知道通常有一些方法可以表明您从与客户端代码相同的服务器提供服务。可能不是

export function createTranslateLoader(http: Http) {
    return new TranslateHttpLoader(http, '/assets/i18n/', '.json');
}

但是当我在 angular docs repos 中四处寻找时：我看到了这个：https ://github.com/angular/angular/issues/15349 。因此，也许角度 http 服务不支持调用提供文档的主机。这有点令人惊讶，但你可以在 javascript 中使用：

window.location.origin

因此，只需在设置呼叫时将其添加到 /assets/i18n/ 即可。

于 2017-06-17T02:12:40.433 回答