故障解析的JSONObject - 错误“字符串不能转换为JSONObject的”

问题描述：

这里是我又试了一次，但无济于事....故障解析的JSONObject - 错误“字符串不能转换为JSONObject的”

我切换字符串将翻一番，改变以适应双打作为HashMap中的值好。仍然得到同样的错误.....它很难找到只是拉一个没有数组的jsonObject的示例

这里有什么问题？

{ “基地”： “EUR”， “日期”： “2017年8月25日”， “速度”：{ “AUD”：1.4919， “BGN”：1.9558， “BRL “：3.7045， “CAD”：1.4769， “CHF”：1.139， “万元”：7.8596， “捷克克朗”：26.084， “DKK”：7.4391， “GBP”：0.92083， “HKD” ：9.2372, “HRK”：7.414, “HUF”：304.68, “IDR”：15758.0, “ILS”：4.2453, “INR”：75.598， “JPY”：129.59， “KRW”：1327.0， “MXN”：20.844， “MYR”：5.0456， “诺”：9.2278， “NZD”：1.6363， “PHP”：60.327， “PLN”：4.2598， “RON”：4.5983， “蹭”：69.831， “SEK”：9.5053， “SGD”：1.6055， “THB”：39.332， “ TRY“：4.108， ”USD“：1.1808， ”ZAR“：15.549 }}

if (jsonStr != null) { 
      try { 
       JSONObject jsonObj = new JSONObject(jsonStr); 


       JSONObject jsonObj2 = jsonObj.getJSONObject("rates"); 


       double australia = jsonObj2.getDouble("AUD"); 
       double bulgarian = jsonObj2.getDouble("BDN"); 
       double brazil = jsonObj2.getDouble("BRL"); 
       double canadian = jsonObj2.getDouble("CAD"); 
       double swissfrank = jsonObj2.getDouble("CHF"); 
       double chinnese = jsonObj2.getDouble("CNY"); 
       double Czech = jsonObj2.getDouble("CZK"); 
       double Danish = jsonObj2.getDouble("DKK"); 
       double british = jsonObj2.getDouble("GBP"); 
       double hongkong = jsonObj2.getDouble("HKD"); 
       double croatian = jsonObj2.getDouble("HRK"); 
       double hungarian = jsonObj2.getDouble("HUF"); 
       double indonesian = jsonObj2.getDouble("IDR"); 
       double israeli = jsonObj2.getDouble("ILS"); 
       double indian = jsonObj2.getDouble("INR"); 
       double japan = jsonObj2.getDouble("JPY"); 
       double korean = jsonObj2.getDouble("KRW"); 
       double mexican = jsonObj2.getDouble("MXN"); 
       double malaysian = jsonObj2.getDouble("MYR"); 
       double norwegian = jsonObj2.getDouble("NOK"); 
       double newzealand = jsonObj2.getDouble("NZD"); 
       double philippino = jsonObj2.getDouble("PHP"); 
       double polish = jsonObj2.getDouble("PLN"); 
       double romanian = jsonObj2.getDouble("RON"); 
       double russian = jsonObj2.getDouble("RUB"); 
       double swedish = jsonObj2.getDouble("SEK"); 
       double singapore = jsonObj2.getDouble("SGD"); 
       double thai = jsonObj2.getDouble("THB"); 
       double turkish = jsonObj2.getDouble("TRY"); 
       double usa = jsonObj2.getDouble("USD"); 
       double southafrican = jsonObj2.getDouble("ZAR"); 

       // tmp hash map for single contact 
       HashMap<String, Double> contact = new HashMap<>(); 

       // adding each child node to HashMap key => value 
       contact.put("AUD", australia); 
       contact.put("BDN", bulgarian); 
       contact.put("BRL", brazil); 
       contact.put("CAD", canadian); 
       contact.put("CHF", swissfrank); 
       contact.put("CNY", chinnese); 
       contact.put("CZK", Czech); 
       contact.put("DKK", Danish); 
       contact.put("GBP", british); 
       contact.put("HKD", hongkong); 
       contact.put("HRK", croatian); 
       contact.put("HUF", hungarian); 
       contact.put("IDR", indonesian); 
       contact.put("ILS", israeli); 
       contact.put("INR", indian); 
       contact.put("JPY", japan); 
       contact.put("KRW", korean); 
       contact.put("MXN", mexican); 
       contact.put("MYR", malaysian); 
       contact.put("NOK", norwegian); 
       contact.put("NZD", newzealand); 
       contact.put("PHP", philippino); 
       contact.put("PLN", polish); 
       contact.put("RON", romanian); 
       contact.put("RUB", russian); 
       contact.put("SEK", swedish); 
       contact.put("SGD", singapore); 
       contact.put("THB", thai); 
       contact.put("TRY", turkish); 
       contact.put("USA", usa); 
       contact.put("ZAR", southafrican); 


       // adding contact to contact list 

       contactList.add(contact);

你的利率不是一个数组类型的对象类型。 –

'getString（“AUD”）。toString（）'是多余的。你已经得到一个字符串 –

尝试Double australia = ratesObject.getDouble（“AUD”）; –

答

字符串不能转换到的JSONObject

问题

JSONArray array = new JSONArray();

为什么JSONArray

"rates": { 
     "AUD": 1.4919, 
     "BGN": 1.9558,

溶胶 - 使用Iterator与JSONObject#keys

  Iterator<String> iteratorObj = jsonObj2.keys(); 
      ArrayList<String> al_getAllKeys=new ArrayList<String>(); 
      while (iteratorObj.hasNext()) 
      { 
       String key = iteratorObj.next(); 
       .......... 
       System.out.println("Key_VALUE: " + key + "------>" + jsonObj2.getString(key)); 

      }

FYI

为什么int australia？。它应该是double australia。

double australia = ratesObject。getDouble（ “AUD”）;

@MarAvFe同意。在这种情况下，我使用'Iterator' –

JSONObject jsonObj = new JSONObject（jsonStr）; JSONObject jsonObj2 = jsonObj.getJSONObject（“rates”）; double australia = jsonObj2.getDouble（“AUD”）; double bulgarian = jsonObj2.getDouble（“BDN”）;仍然给我同样的错误.... – Davidito

答

你没有方括号，所以你根本不需要JSONArray相关的类或方法。

使用jsonObj2.getString("AUD")

如果你真的想号码，使用getDouble("AUD")

我试过没有它也JSONObject jsonObj = new JSONObject（jsonStr）; JSONObject jsonObj2 = jsonObj.getJSONObject（“rates”）; //通过所有联系人为循环（INT I = 0; I Davidito

你并不需要一个循环可言，要么 –

一个'JSONObject'是基本相同的一个HashMap –

答

使用GSON库，让您的费率。

编译 'org.immutables：GSON：2.5.6'

public class Main { 

@SerializedName("base") 
@Expose 
private String base; 
@SerializedName("date") 
@Expose 
private String date; 
@SerializedName("rates") 
@Expose 
private Rates rates; 

public String getBase() { 
return base; 
} 

public void setBase(String base) { 
this.base = base; 
} 

public String getDate() { 
return date; 
} 

public void setDate(String date) { 
this.date = date; 
} 

public Rates getRates() { 
return rates; 
} 

public void setRates(Rates rates) { 
this.rates = rates; 
} 

} 


public class Rates { 

@SerializedName("AUD") 
@Expose 
private Double aUD; 
@SerializedName("BGN") 
@Expose 
private Double bGN; 
@SerializedName("BRL") 
@Expose 
private Double bRL; 
@SerializedName("CAD") 
@Expose 
private Double cAD; 
@SerializedName("CHF") 
@Expose 
private Double cHF; 
@SerializedName("CNY") 
@Expose 
private Double cNY; 
@SerializedName("CZK") 
@Expose 
private Double cZK; 
@SerializedName("DKK") 
@Expose 
private Double dKK; 
@SerializedName("GBP") 
@Expose 
private Double gBP; 
@SerializedName("HKD") 
@Expose 
private Double hKD; 
@SerializedName("HRK") 
@Expose 
private Double hRK; 
@SerializedName("HUF") 
@Expose 
private Double hUF; 
@SerializedName("IDR") 
@Expose 
private Double iDR; 
@SerializedName("ILS") 
@Expose 
private Double iLS; 
@SerializedName("INR") 
@Expose 
private Double iNR; 
@SerializedName("JPY") 
@Expose 
private Double jPY; 
@SerializedName("KRW") 
@Expose 
private Double kRW; 
@SerializedName("MXN") 
@Expose 
private Double mXN; 
@SerializedName("MYR") 
@Expose 
private Double mYR; 
@SerializedName("NOK") 
@Expose 
private Double nOK; 
@SerializedName("NZD") 
@Expose 
private Double nZD; 
@SerializedName("PHP") 
@Expose 
private Double pHP; 
@SerializedName("PLN") 
@Expose 
private Double pLN; 
@SerializedName("RON") 
@Expose 
private Double rON; 
@SerializedName("RUB") 
@Expose 
private Double rUB; 
@SerializedName("SEK") 
@Expose 
private Double sEK; 
@SerializedName("SGD") 
@Expose 
private Double sGD; 
@SerializedName("THB") 
@Expose 
private Double tHB; 
@SerializedName("TRY") 
@Expose 
private Double tRY; 
@SerializedName("USD") 
@Expose 
private Double uSD; 
@SerializedName("ZAR") 
@Expose 
private Double zAR; 

public Double getAUD() { 
return aUD; 
} 

public void setAUD(Double aUD) { 
this.aUD = aUD; 
} 

public Double getBGN() { 
return bGN; 
} 

public void setBGN(Double bGN) { 
this.bGN = bGN; 
} 

public Double getBRL() { 
return bRL; 
} 

public void setBRL(Double bRL) { 
this.bRL = bRL; 
} 

public Double getCAD() { 
return cAD; 
} 

public void setCAD(Double cAD) { 
this.cAD = cAD; 
} 

public Double getCHF() { 
return cHF; 
} 

public void setCHF(Double cHF) { 
this.cHF = cHF; 
} 

public Double getCNY() { 
return cNY; 
} 

public void setCNY(Double cNY) { 
this.cNY = cNY; 
} 

public Double getCZK() { 
return cZK; 
} 

public void setCZK(Double cZK) { 
this.cZK = cZK; 
} 

public Double getDKK() { 
return dKK; 
} 

public void setDKK(Double dKK) { 
this.dKK = dKK; 
} 

public Double getGBP() { 
return gBP; 
} 

public void setGBP(Double gBP) { 
this.gBP = gBP; 
} 

public Double getHKD() { 
return hKD; 
} 

public void setHKD(Double hKD) { 
this.hKD = hKD; 
} 

public Double getHRK() { 
return hRK; 
} 

public void setHRK(Double hRK) { 
this.hRK = hRK; 
} 

public Double getHUF() { 
return hUF; 
} 

public void setHUF(Double hUF) { 
this.hUF = hUF; 
} 

public Double getIDR() { 
return iDR; 
} 

public void setIDR(Double iDR) { 
this.iDR = iDR; 
} 

public Double getILS() { 
return iLS; 
} 

public void setILS(Double iLS) { 
this.iLS = iLS; 
} 

public Double getINR() { 
return iNR; 
} 

public void setINR(Double iNR) { 
this.iNR = iNR; 
} 

public Double getJPY() { 
return jPY; 
} 

public void setJPY(Double jPY) { 
this.jPY = jPY; 
} 

public Double getKRW() { 
return kRW; 
} 

public void setKRW(Double kRW) { 
this.kRW = kRW; 
} 

public Double getMXN() { 
return mXN; 
} 

public void setMXN(Double mXN) { 
this.mXN = mXN; 
} 

public Double getMYR() { 
return mYR; 
} 

public void setMYR(Double mYR) { 
this.mYR = mYR; 
} 

public Double getNOK() { 
return nOK; 
} 

public void setNOK(Double nOK) { 
this.nOK = nOK; 
} 

public Double getNZD() { 
return nZD; 
} 

public void setNZD(Double nZD) { 
this.nZD = nZD; 
} 

public Double getPHP() { 
return pHP; 
} 

public void setPHP(Double pHP) { 
this.pHP = pHP; 
} 

public Double getPLN() { 
return pLN; 
} 

public void setPLN(Double pLN) { 
this.pLN = pLN; 
} 

public Double getRON() { 
return rON; 
} 

public void setRON(Double rON) { 
this.rON = rON; 
} 

public Double getRUB() { 
return rUB; 
} 

public void setRUB(Double rUB) { 
this.rUB = rUB; 
} 

public Double getSEK() { 
return sEK; 
} 

public void setSEK(Double sEK) { 
this.sEK = sEK; 
} 

public Double getSGD() { 
return sGD; 
} 

public void setSGD(Double sGD) { 
this.sGD = sGD; 
} 

public Double getTHB() { 
return tHB; 
} 

public void setTHB(Double tHB) { 
this.tHB = tHB; 
} 

public Double getTRY() { 
return tRY; 
} 

public void setTRY(Double tRY) { 
this.tRY = tRY; 
} 

public Double getUSD() { 
return uSD; 
} 

public void setUSD(Double uSD) { 
this.uSD = uSD; 
} 

public Double getZAR() { 
return zAR; 
} 

public void setZAR(Double zAR) { 
this.zAR = zAR; 
} 

}

这里是你的POJO类。

这是不必要的冗长，并且不能为其他货币进行缩放 –

另外，这不是官方的Gson库。 http://search.maven.org/#artifactdetails%7Ccom.google.code.gson%7Cgson%7C2.8.1%7C –

答

将字符串转换成JSON

JSONObject jsonObj = new JSONObject(cursorUsers.getString("String");

当从JSONObject的

String str=jsonObj.getString("parseObjectName"));

答

获取字符串你率在double，但你打电话getString()并将它们存储在int！

你的JsonArray array是空的，你正在循环着它！

rates是一个jsonObject。无需循环，只需调用它并通过提供密钥来访问每个速率。

double aud = jsonObject2.getDouble("AUD"); 

double bnd = jsonObject2.getDouble("BND");

你无法循环浏览jsonObject，从来没有。您需要保留一个单独的密钥列表，以便为jsonObject2.getDouble（key）提供密钥。 –

答

您可以使用谷歌的GSON库，简单的步骤去做，试试下面的代码

String jsonString = "Your JSON string"; 

Gson gson = new Gson(); 

//Convert Json String to Json Object without a POJO class 
JsonObject jsonObj = gson.fromJson (jsonString, JsonElement.class).getAsJsonObject(); 

//Get rates object and convert it to hashmap (For easy access) 
HashMap<String, String> ratesMap = gson.fromJson(jsonObj.get("rates").getAsString(), new TypeToken<HashMap<String, String>>(){}.getType());

故障解析的JSONObject - 错误“字符串不能转换为JSONObject的”

相关推荐