無法識別領域

我已經從我的測試服務器返回一個JSON字符串，Android應用也越來越這很好，但是當我嘗試將其移動到使用MappingJackson2HttpMessageConverter它的一個字段是一個列表失敗的對象。無法識別領域

似乎無法找出原因，已經嘗試了許多註釋都沒有成功，誤差得到的是：

org.springframework.http.converter.HttpMessageNotReadableException: Could not read JSON: Unrecognized field "HourlySalesFigures" (class org.springframework.android.showcase.DayData), 
not marked as ignorable (15 known properties: , "nextDate", "totalLoyalty", "previousDate", "totalCheque", "numberOfLoyaltySales", "totalGrand", "numberOfChequeSales", "hourlySalesFigures", "totalCard", "totalCash", "totalCharge" [truncated]])

返回的JSON數據：

我想

{"HourlySalesFigures":[{"hour":0,"numberOfSales":0,"totalOfSales":0},{"hour":1,"numberOfSales":0,"totalOfSales":0},{"hour":2,"numberOfSales":0,"totalOfSales":0},{"hour":3,"numberOfSales":0,"totalOfSales":0},{"hour":4,"numberOfSales":0,"totalOfSales":0},{"hour":5,"numberOfSales":0,"totalOfSales":0},{"hour":6,"numberOfSales":0,"totalOfSales":0},{"hour":7,"numberOfSales":0,"totalOfSales":0},{"hour":8,"numberOfSales":0,"totalOfSales":0},{"hour":9,"numberOfSales":0,"totalOfSales":0},{"hour":10,"numberOfSales":4,"totalOfSales":548},{"hour":11,"numberOfSales":1,"totalOfSales":3},{"hour":12,"numberOfSales":7,"totalOfSales":209.5},{"hour":13,"numberOfSales":8,"totalOfSales":528.4},{"hour":14,"numberOfSales":13,"totalOfSales":1196.8},{"hour":15,"numberOfSales":9,"totalOfSales":1422.2},{"hour":16,"numberOfSales":12,"totalOfSales":321.5},{"hour":17,"numberOfSales":22,"totalOfSales":493.5},{"hour":18,"numberOfSales":21,"totalOfSales":740.5},{"hour":19,"numberOfSales":28,"totalOfSales":1180.5},{"hour":20,"numberOfSales":8,"totalOfSales":377.5},{"hour":21,"numberOfSales":9,"totalOfSales":859.8},{"hour":22,"numberOfSales":28,"totalOfSales":11193.8},{"hour":23,"numberOfSales":1,"totalOfSales":107}],"TargetDate":"2013/02/13","PreviousDate":"2013/02/12","NextDate":"2013/02/14","NumberOfCashSales":126,"TotalCash":8432.1,"NumberOfCardSales":23,"TotalCard":9775.9,"NumberOfChequeSales":0,"TotalCheque":0,"NumberOfLoyaltySales":0,"TotalLoyalty":0,"NumberOfChargeSales":22,"TotalCharge":974.0,"TotalGrand":19182.0}

Java對象（請注意我爲了簡潔而省略了吸氣劑和吸附劑）

DayData class

@Root 
public class DayData { 

@ElementList(name="HourlySalesFigures", inline=true) 
protected List<HourSalesItem> hourlySalesFigures; 

@Element(name="TargetDate") 
protected String targetDate; 
@Element(name="PreviousDate") 
protected String previousDate; 
@Element(name="NextDate") 
protected String nextDate; 
@Element(name="NumberOfCashSales") 
protected int numberOfCashSales; 
@Element(name="TotalCash") 
protected double totalCash; 
@Element(name="NumberOfCardSales") 
protected int numberOfCardSales; 
@Element(name="TotalCard") 
protected double totalCard; 
@Element(name="NumberOfChequeSales") 
protected int numberOfChequeSales; 
@Element(name="TotalCheque") 
protected double totalCheque; 
@Element(name="NumberOfLoyaltySales") 
protected int numberOfLoyaltySales; 
@Element(name="TotalLoyalty") 
protected double totalLoyalty; 
@Element(name="NumberOfChargeSales") 
protected int numberOfChargeSales; 
@Element(name="TotalCharge") 
protected double totalCharge; 
@Element(name="TotalGrand") 
protected double totalGrand; 

public DayData(List<HourSalesItem> HourlySalesFigures, String targetDate, String previousDate, String nextDate, int numberOfCashSales, double totalCash, int numberOfCardSales, double totalCard, int numberOfChequeSales, double totalCheque, int numberOfLoyaltySales, double totalLoyalty, int numberOfChargeSales, double totalCharge, double totalGrand) { 
    this.hourlySalesFigures = HourlySalesFigures; 
    this.targetDate = targetDate; 
    this.previousDate = previousDate; 
    this.nextDate = nextDate; 
    this.numberOfCashSales = numberOfCashSales; 
    this.totalCash = totalCash; 
    this.numberOfCardSales = numberOfCardSales; 
    this.totalCard = totalCard; 
    this.numberOfChequeSales = numberOfChequeSales; 
    this.totalCheque = totalCheque; 
    this.numberOfLoyaltySales = numberOfLoyaltySales; 
    this.totalLoyalty = totalLoyalty; 
    this.numberOfChargeSales = numberOfChargeSales; 
    this.totalCharge = totalCharge; 
    this.totalGrand = totalGrand; 
} 

public DayData() 
{ 

} 
}

HourSalesItem類

@Root 
public class HourSalesItem{ 

@Element 
private int hour; 
@Element 
private int numberOfSales; 
@Element 
private double totalOfSales; 

public HourSalesItem(int hour, int numberOfSales, double totalOfSales) { 
    this.hour = hour; 
    this.numberOfSales = numberOfSales; 
    this.totalOfSales = totalOfSales; 
} 

public HourSalesItem(){ 

} 
}

來源

2013-08-19 John Cogan

嘗試重命名你的變量。作爲HourlySalesFigures，TargetDate等 –

想到了這一點，因此@Element（name =「TotalGrand」）註釋。但無論如何重命名變量並重試，同樣的錯誤。 –

DayData構造函數沒有在CamelCase中有HourlySalesFigures參數，也許這可能是問題？我不確定，只是猜測。 –

解決

服務器其餘返回的Json用大寫的駱駝雙峯變量，例如

TotalGrand

更名爲

totalGrand

解決問題。

來源

2013-08-20 11:35:32

嘗試使用@JsonIgnore屬性忽略你不處理/在你的代碼解析的字段。可能會解決這個問題。如果您有不同的JSON解析API，那麼您只需要搜索如何忽略JSON密鑰？

來源

2013-08-19 13:49:46 Master

上面的問題中顯示的示例JSON將始終返回hourlySalesFigures中的24個項目，如果未使用，它們將簡單地設置爲零，因此不應該返回任何從未使用過的數據。不確定這是否會影響您的答案？ –

無論如何試過了，沒有工作，給了我原來的錯誤。 –

用格式化的JSON文件查看我的第二個答案。如果它有用。 – Master

參見{"hour":0,"numberOfSales":0,"totalOfSales":0}

甲JSON文件是{"Key":"value"}對。根據Software的語言，它只能理解字符串類型的Key和字符串類型的值。因此，嘗試去改變它作爲

{"hour":0,"numberOfSales":"0","totalOfSales":"0"}

，並相應地解析它在你的結束。

我把它作爲第二個答案，因爲JSON格式。

來源

2013-08-19 14:09:44 Master

無法識別領域

回答

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