Question

我在尝试实现找到here

的Nativescript教程代码时遇到以下错误

"originalStack": "Error: java.net.ConnectException: Connection refused\n at ZoneAwareError (file:///data/data/org.nativescript.NotecardRestaurants/ files/app/tns_modules/nativescript-angular/zone-js/dist/zone-nativescript.js:993:33)\n...

以下是app.module的来源

import { NgModule, NO_ERRORS_SCHEMA } from "@angular/core";
import { NativeScriptModule } from "nativescript-angular/nativescript.module";
import { AppRoutingModule } from "./app.routing";
import { AppComponent } from "./app.component";
import { NativeScriptFormsModule } from "nativescript-angular/forms";
import { NativeScriptHttpModule } from "nativescript-angular/http";
import { UserService } from './shared/user/user.service';

import { LoginComponent } from "./login/login.component";

@NgModule({
    bootstrap: [
        AppComponent
    ],
    imports: [
        NativeScriptModule,
        AppRoutingModule,
        NativeScriptFormsModule,
        NativeScriptHttpModule,
    ],
    declarations: [
        AppComponent,
        LoginComponent
    ],
    providers: [
        UserService
    ],
    schemas: [
        NO_ERRORS_SCHEMA
    ]
})
export class AppModule { }

以下是导致问题的user.service的来源

import { Injectable } from "@angular/core";
import { Http, Headers, Response } from "@angular/http";
import { Observable } from "rxjs/Rx";
import "rxjs/add/operator/do";
import "rxjs/add/operator/map";

import { User } from "./user";
import { Config } from "../config";

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

  register(user: User) {
    let headers = new Headers();
    headers.append("Content-Type", "application/json");

    return this.http.post(
      Config.apiUrl + "/user/register",
      JSON.stringify({
        name: user.name,
        email: user.email,
        password: user.password
      }),
      { headers: headers }
    )
    .map(response => response.json().token)
    .catch(this.handleErrors);
  }
  login(user: User) {
    let headers = new Headers();
    headers.append("Content-Type", "application/json");

    return this.http.post(
       Config.apiUrl + "user/login",
      JSON.stringify({
        email: user.email,
        password: user.password
      }),
      { headers: headers }
    )
    .map(response => response.json().token)
    .catch(this.handleErrors);
  }

  handleErrors(error: Response) {
    console.dir(error.json());
    return Observable.throw(error);
  }
}

我已经独立验证了我正在使用的api的完整性。给出的路线确实有效。我正在使用

运行nativescript项目

tns run android --emulator

Answer 1

如果您在IOS模拟器或Android模拟器（基本上是虚拟机）上运行应用程序，并且如果引用的是“ localhost”或“ 127.0.0.1”，则这些是虚拟机的IP，而不是您的开发计算机。您可以通过提供开发机的IP来解决问题，或者在android中，您可以将10.0.2.2 IP用于开发机。您的api网址示例是 https://10.0.2.2:5001/api/news/getnews

Nativescript Http模块错误连接被拒绝

1 个答案: