我运行此代码并崩溃。你能帮帮我吗？
public class RepairCostsData {
@Expose
private int month;
@Expose
private int month_id;
@Expose
private int year;
@Expose
private double summa;
@Expose
private double detail_price;
@Expose
private double job_price;
...
为这个类调用Gson().fromJson()
RepairCostsData[] repairCostsData = new Gson().fromJson(jsonObject.getJSONArray(DATA).toString(),
RepairCostsData[].class);
**来自服务器的 JSON **
[{"month":"","month_id":"3","year":"2014","detail_price":0,"job_price":0,"summa":0},{"month ":"","month_id":"4","year":"2014","detail_price":0,"job_price":0,"summa":0},{"month":"","month_id ":"5","year":"2014","detail_price":0,"job_price":0,"summa":0},{"month":"","month_id":"6","year":"2014","detail_price":0,"job_price":0,"summa":0},{"month":"Июль","month_id":"7","year":"2014","detail_price":"250.00","job_price":0,"summa":250},{"month":"","month_id":"8","year":"2014","detail_price": 0,"job_price":0,"summa":0}]
日志
com.google.gson.JsonSyntaxException: java.lang.NumberFormatException:
Invalid double: ""
at com.google.gson.internal.bind.TypeAdapters$7.read(TypeAdapters.java:232)
at com.google.gson.internal.bind.TypeAdapters$7.read(TypeAdapters.java:222)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
at com.google.gson.internal.bind.ArrayTypeAdapter.read(ArrayTypeAdapter.java:72)
at com.google.gson.Gson.fromJson(Gson.java:791)
at com.google.gson.Gson.fromJson(Gson.java:757)
at com.google.gson.Gson.fromJson(Gson.java:706)
at com.google.gson.Gson.fromJson(Gson.java:678)
at com.DriverNotes.AndroidMobileClientTest.model.server.statistics.RepairCosts.<init>(RepairCosts.java:29)
at com.DriverNotes.AndroidMobileClientTest.model.server.statistics.RepairCostsStatistics.<init>(RepairCostsStatistics.java:20)
at com.DriverNotes.AndroidMobileClientTest.network.VolleyServerConnector$48$1.run(VolleyServerConnector.java:780)
at java.lang.Thread.run(Thread.java:856)
此行崩溃:
RepairCostsData[] repairCostsData = new Gson().fromJson(jsonObject.getJSONArray(DATA).toString(),
RepairCostsData[].class);
最佳答案
"job_price":"0.00"不是 double 而是字符串，
改为
"job_price": 0.00
关于android - Gson .JsonSyntaxException - java.lang.NumberFormatException : Invalid double: ""，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25140170/