解析JSON propertly在Android上使用

改造我想分析該URL產生一個JSON：解析JSON propertly在Android上使用

此URL生成像這樣的JSON響應：

{ 
    "USD" : {"15m" : 4097.85, "last" : 4097.85, "buy" : 4097.84, "sell" : 4093.37, "symbol" : "$"}, 
    "AUD" : {"15m" : 5209.87, "last" : 5209.87, "buy" : 5209.86, "sell" : 5204.18, "symbol" : "$"}, 
    "BRL" : {"15m" : 12985.88, "last" : 12985.88, "buy" : 12985.85, "sell" : 12971.68, "symbol" : "R$"}, 
    "CAD" : {"15m" : 5214.82, "last" : 5214.82, "buy" : 5214.81, "sell" : 5209.12, "symbol" : "$"}, 
    "CHF" : {"15m" : 3985.18, "last" : 3985.18, "buy" : 3985.17, "sell" : 3980.82, "symbol" : "CHF"}, 
    "CLP" : {"15m" : 2660734.01, "last" : 2660734.01, "buy" : 2660727.51, "sell" : 2657825.14, "symbol" : "$"}, 
    "CNY" : {"15m" : 27427.32, "last" : 27427.32, "buy" : 27427.25, "sell" : 27397.33, "symbol" : "¥"}, 
    "DKK" : {"15m" : 25993.26, "last" : 25993.26, "buy" : 25993.2, "sell" : 25964.85, "symbol" : "kr"}, 
    "EUR" : {"15m" : 3495.38, "last" : 3495.38, "buy" : 3495.37, "sell" : 3491.56, "symbol" : "€"}, 
    "GBP" : {"15m" : 3180.65, "last" : 3180.65, "buy" : 3180.64, "sell" : 3177.17, "symbol" : "£"}, 
    "HKD" : {"15m" : 32058.22, "last" : 32058.22, "buy" : 32058.14, "sell" : 32023.17, "symbol" : "$"}, 
    "INR" : {"15m" : 262979.52, "last" : 262979.52, "buy" : 262978.88, "sell" : 262692.02, "symbol" : "₹"}, 
    "ISK" : {"15m" : 447157.39, "last" : 447157.39, "buy" : 447156.3, "sell" : 446668.53, "symbol" : "kr"}, 
    "JPY" : {"15m" : 454250.37, "last" : 454250.37, "buy" : 454249.26, "sell" : 453753.75, "symbol" : "¥"}, 
    "KRW" : {"15m" : 4677285.99, "last" : 4677285.99, "buy" : 4677274.58, "sell" : 4672172.52, "symbol" : "₩"}, 
    "NZD" : {"15m" : 5656.28, "last" : 5656.28, "buy" : 5656.26, "sell" : 5650.09, "symbol" : "$"}, 
    "PLN" : {"15m" : 14947.54, "last" : 14947.54, "buy" : 14947.51, "sell" : 14931.2, "symbol" : "zł"}, 
    "RUB" : {"15m" : 244110.7, "last" : 244110.7, "buy" : 244110.1, "sell" : 243843.82, "symbol" : "RUB"}, 
    "SEK" : {"15m" : 33149.72, "last" : 33149.72, "buy" : 33149.64, "sell" : 33113.48, "symbol" : "kr"}, 
    "SGD" : {"15m" : 5603.48, "last" : 5603.48, "buy" : 5603.46, "sell" : 5597.35, "symbol" : "$"}, 
    "THB" : {"15m" : 136432.79, "last" : 136432.79, "buy" : 136432.46, "sell" : 136283.64, "symbol" : "฿"}, 
    "TWD" : {"15m" : 124291.89, "last" : 124291.89, "buy" : 124291.59, "sell" : 124156.01, "symbol" : "NT$"} 
}

我想用將每個貨幣作爲對象進行改造，以便能夠在稍後的活動中打印所有信息。我注意到的一件事是返回的類型，我不太確定如何定義。總之，我使用改造所以只是嘗試，我做這樣一個例子：

public interface CryptoCurrencyService { 

    @GET("ticker") 
    Call<JsonObject> listCurrencies(); 
}

然後，我有：

public class ApiClient 
{ 

    //https://blockchain.info/es/ticker 


     private static Retrofit retrofit = null; 

     static Retrofit getClient() { 

      retrofit = new Retrofit.Builder() 
        .baseUrl("https://blockchain.info/es/") 
        .addConverterFactory(GsonConverterFactory.create()) 
        .build(); 

      return retrofit; 
     } 


}

和類貨幣：

public class Currency 
{ 
    @SerializedName("15m") 
    private double valueLast15m; 
    @SerializedName("last") 
    private double lastValue; 
    @SerializedName("buy") 
    private double buyValue; 
    @SerializedName("sell") 
    private double sellValue; 
    @SerializedName("symbol") 
    private String symbol; 

    public Currency(double valueLast15m, double lastValue, double buyValue, double sellValue, String symbol) { 
     this.valueLast15m = valueLast15m; 
     this.lastValue = lastValue; 
     this.buyValue = buyValue; 
     this.sellValue = sellValue; 
     this.symbol = symbol; 
    } 

    public Currency() 
    { 
     this.valueLast15m = 0.0; 
     this.lastValue = 0.0; 
     this.buyValue = 0.0; 
     this.sellValue = 0.0; 
     this.symbol = ""; 
    } 

    public double getValueLast15m() { 
     return valueLast15m; 
    } 

    public void setValueLast15m(double valueLast15m) { 
     this.valueLast15m = valueLast15m; 
    } 

    public double getLastValue() { 
     return lastValue; 
    } 

    public void setLastValue(double lastValue) { 
     this.lastValue = lastValue; 
    } 

    public double getBuyValue() { 
     return buyValue; 
    } 

    public void setBuyValue(double buyValue) { 
     this.buyValue = buyValue; 
    } 

    public double getSellValue() { 
     return sellValue; 
    } 

    public void setSellValue(double sellValue) { 
     this.sellValue = sellValue; 
    } 

    public String getSymbol() { 
     return symbol; 
    } 

    public void setSymbol(String symbol) { 
     this.symbol = symbol; 
    } 
}

所以在我的活動某些時候，我正在這樣做：

CryptoCurrencyService service = ApiClient.getClient().create(CryptoCurrencyService.class); 
     service.listCurrencies().enqueue(new Callback<JsonObject>() { 
      @Override 
      public void onResponse(Call<JsonObject> call, Response<JsonObject> response) { 
       Log.d("RESPONSE",response.body().getAsString()); 


      } 

      @Override 
      public void onFailure(Call<JsonObject> call, Throwable t) { 

       Toast.makeText(getApplicationContext(),"Failure",Toast.LENGTH_LONG).show(); 
      } 
     });

然而，我沒有得到轉換爲字符串的JSON，只是網絡的響應（確定：200）。

我已經試過：。

response.body（）符getAsString（），response.body（）的toString（），response.toString（）......但我得到的是HTTP響應，而不是JSON，這種方式我知道我是正確的，因爲如果將鼠標放在「響應」對象上，我可以通過在響應 - > body->成員下單擊鼠標右鍵來搜索返回的JSON對象。我也試過做response.body（）。get（「members」）;但它崩潰。

任何想法我做錯了什麼？我可以直接解析列表而不會得到原始的json響應嗎？

非常感謝！

來源

2017-08-16 Toni

在改進您的調用的參數化類應該是對應於您的JSON響應映射的類。

更多類似這樣的事：

public interface CryptoCurrencyService { 

    @GET("ticker") 
    Call<Map<String, Currency>> listCurrencies(); 
}

來源

2017-08-16 11:19:25 smora

謝謝你，現在它的工作！ :) – Toni

解析JSON propertly在Android上使用

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