JSON解析中的離子3錯誤

在離子中，我在嘗試解析JSON數據時遇到此錯誤。JSON解析中的離子3錯誤

Error : Response with status: 0 for URL: null

我需要在列表格式打印產品名稱（黃姜粉）

JSON響應是

[{"product_id":"40","sku":"HOS001","name":"Turmeric Powder","set":"9","type":"configurable","category_ids":["2","3"],"website_ids":["1"]},{"product_id":"41","sku":"HOS001-20 grms","name":"Turmeric Powder-20 grms","set":"9","type":"simple","category_ids":[],"website_ids":["1"]}}]

類型Script代碼：

getdata(){ 

    this.loading.present(); 
    this.httpProvider.getJsonData().subscribe(

    result => { 
      console.log('getJsonData completed'); 

    this.newsData=result.data.result; 
    console.log("Success : "+this.newsData); 
    }, 
    err =>{ 
    console.error("Error : "+err); 
    } , 
() => { 
    this.loading.dismiss(); 
    console.log('getData completed'); 
    } 
); 
}

Provider.ts

import { Injectable } from '@angular/core'; 
import { Http } from '@angular/http'; 
import 'rxjs/add/operator/map'; 

/* 
Generated class for the HttpProvider provider. 

See https://angular.io/docs/ts/latest/guide/dependency-injection.html 
for more info on providers and Angular 2 DI. 
*/ 

@Injectable() 
export class HttpProvider { 

constructor(public http: Http) { 
console.log('Hello HttpProvider Provider'); 
} 

getJsonData(){ 
    return this.http.get('http://happyos.in/prd.php').map(res => res.json()); 
}}

來源

2017-06-20 Sumi

您是否使用'ionic serve'運行？這可能是一個CORS問題 –

@suraj是的我運行在火狐瀏覽器使用離子服務 – Sumi

@suraj你可以請建議如何解決CORS問題 – Sumi

我通過添加Google Chrome擴展Access-Control-Allow-Origin找到了CORS問題的解決方案。但是在我們每次打開瀏覽器之前必須啓用它之前

來源

2017-06-22 06:48:33 Sumi

JSON解析中的離子3錯誤

回答

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