我正在尝试序列化下面定义的对象。使用Newtonsoft JsonConvert可以正确执行此操作。这将返回一个字符串。 当我尝试将字符串反序列化回定义的对象时，它将不起作用并引发异常
/**
* Converts an Integer array to an ArrayList of the same type.
*/
private static java.util.ArrayList<Integer> toArrayList(Integer[] array) {
return new java.util.ArrayList<>(Arrays.asList(array));
}
/**
* return the sum of the second half of items in the given list.
*/
public static int sumSecondHalfItems(final ArrayList<Integer> list) {
/* Get the upper half of list size value */
float quotient = (float)list.size() / 2;
int upper = (int) Math.ceil(quotient);
/*
* Here we loop through the upper portion of the list,
* and retrieve the list elements with a getter method
*/
int sum = 0;
for(int i = upper - 1; i < list.size(); i++) {
sum += list.get(i);
}
return sum;
}
public static void main(String[] args) {
/*
* Strating off with a primitive array of numbers
*/
Integer[] a1 = new Integer[]{ 1, 2, 3, 4, 5 };
Integer[] a2 = new Integer[]{ 6, 7, 8, 9, 10, 11 };
/*
* Convert Integer array to ArrayList to fit your example
*/
int result1 = sumSecondHalfItems(toArrayList(a1));
int result2 = sumSecondHalfItems(toArrayList(a2));
System.out.printf("Result of array %s is: %d%n", Arrays.toString(a1), result1);
System.out.printf("Result of array %s is: %d%n", Arrays.toString(a2), result2);
}
出现以下错误
无法将当前JSON数组（例如[1,2,3]）反序列化为type 'System.Collections.Generic.IDictionary
private class PlotSetFeatureStateInfo { public IDictionary<int,IDictionary<AxisTypeAndUnitInfo,ManualScaleInfo>> PersistentScaleInfo { get; set; } public IDictionary<Guid,ScaleType> PlotIdVsLocalScaleType { get; set; } public IDictionary<Guid,IDictionary<AxisTypeAndUnitInfo, PlotScales.PersistentScaleData>> PlotIdVsPersistentScaleData { get; set;} } var foo = new FeatureStateInfo { //Fill values }; var res = JsonConvert.SerializeObject(foo); var deserializedProperty = JsonConvert.DeserializeObject<FeatureStateInfo>(res);//Throws error2 [Axis，ManualScale]] 因为该类型需要一个JSON对象（例如{“ name”：“ value”}） 正确反序列化。要解决此错误，请将JSON更改为 JSON对象（例如{“ name”：“ value”}）或将反序列化类型更改为 实现集合接口的数组或类型（例如 ICollection，IList），例如可以从JSON反序列化的List 数组。还可以将JsonArrayAttribute添加到类型中以强制将其 从JSON数组反序列化
发布示例JSON，无需进行任何编辑。这是有效的json。
2[System.Int32,System.Collections.Generic.IDictionary解决方案： 我根据大家的建议修改了班级，如下所示。 这对我来说很好
{"PersistentScaleInfo":[{"Key":1,"Value":[{"Key":{"AxisType":0,"UnitInfo":{"UnitId":"601988e7-06a1-4dfd-9bba-535989b3afba","SubunitId":"00000000-0000-0000-0000-000000000000"}},"Value":{"Units":"Hz ","MaxScale":400,"MinScale":0.062,"IsAuto":false,"Axes":"X","AxisType":0,"UnitInfo":{"UnitId":"601988e7-06a1-4dfd-9bba-535989b3afba","SubunitId":"00000000-0000-0000-0000-000000000000"},"IsMinLessThanMax":true}},{"Key":{"AxisType":1,"UnitInfo":{"UnitId":"250f1aea-b8e3-4a4d-98e0-f60abded10a4","SubunitId":"94d2baf0-3bc0-41f7-b207-d8ce54e65e35"}},"Value":{"Units":"in/s rms","MaxScale":0.015,"MinScale":0,"IsAuto":false,"Axes":"Y","AxisType":1,"UnitInfo":{"UnitId":"250f1aea-b8e3-4a4d-98e0-f60abded10a4","SubunitId":"94d2baf0-3bc0-41f7-b207-d8ce54e65e35"},"IsMinLessThanMax":true}}]}],"PlotIdVsLocalScaleType":[{"Key":"5ef394a9-98ad-4f52-b916-b698ae4ef351","Value":2}],"PlotIdVsPersistentScaleData":[{"Key":"5ef394a9-98ad-4f52-b916-b698ae4ef351","Value":[{"Key":{"AxisType":0,"UnitInfo":{"UnitId":"601988e7-06a1-4dfd-9bba-535989b3afba","SubunitId":"00000000-0000-0000-0000-000000000000"}},"Value":{"ManualScaleRange":{"MaxScale":400,"MinScale":0.062},"IsVisibleOnView":true,"IsAutoChecked":false,"AreManualScalesSet":true}},{"Key":{"AxisType":1,"UnitInfo":{"UnitId":"250f1aea-b8e3-4a4d-98e0-f60abded10a4","SubunitId":"94d2baf0-3bc0-41f7-b207-d8ce54e65e35"}},"Value":{"ManualScaleRange":{"MaxScale":0.015,"MinScale":0},"IsVisibleOnView":true,"IsAutoChecked":false,"AreManualScalesSet":true}}]}]}
谢谢：）
答案 0 :(得分：0)
我根据您的json创建了一个模型并进行了尝试。一切正常。
class Program
{
static void Main(string[] args)
{
string json = @"{ 'PersistentScaleInfo':[{'Key':1,'Value':[{'Key':{'AxisType':0,'UnitInfo':{'UnitId':'601988e7 - 06a1 - 4dfd - 9bba - 535989b3afba','SubunitId':'00000000 - 0000 - 0000 - 0000 - 000000000000'}
},'Value':{'Units':'Hz ','MaxScale':400,'MinScale':0.062,'IsAuto':false,'Axes':'X','AxisType':0,'UnitInfo':
{'UnitId':'601988e7-06a1-4dfd-9bba-535989b3afba','SubunitId':'00000000-0000-0000-0000-000000000000'},'IsMinLessThanMax':true}},
{'Key':{'AxisType':1,'UnitInfo':{'UnitId':'250f1aea-b8e3-4a4d-98e0-f60abded10a4','SubunitId':'94d2baf0-3bc0-41f7-b207-d8ce54e65e35'}},
'Value':{'Units':'in/s rms','MaxScale':0.015,'MinScale':0,'IsAuto':false,'Axes':'Y','AxisType':1,
'UnitInfo':{'UnitId':'250f1aea-b8e3-4a4d-98e0-f60abded10a4','SubunitId':'94d2baf0-3bc0-41f7-b207-d8ce54e65e35'},
'IsMinLessThanMax':true}}]}],'PlotIdVsLocalScaleType':[{'Key':'5ef394a9-98ad-4f52-b916-b698ae4ef351','Value':2}],
'PlotIdVsPersistentScaleData':[{'Key':'5ef394a9-98ad-4f52-b916-b698ae4ef351','Value':[{'Key':{'AxisType':0,
'UnitInfo':{'UnitId':'601988e7-06a1-4dfd-9bba-535989b3afba','SubunitId':'00000000-0000-0000-0000-000000000000'}},
'Value':{'ManualScaleRange':{'MaxScale':400,'MinScale':0.062},'IsVisibleOnView':true,'IsAutoChecked':false,'AreManualScalesSet':true}},
{'Key':{'AxisType':1,'UnitInfo':{'UnitId':'250f1aea-b8e3-4a4d-98e0-f60abded10a4','SubunitId':'94d2baf0-3bc0-41f7-b207-d8ce54e65e35'}},
'Value':{'ManualScaleRange':{'MaxScale':0.015,'MinScale':0},'IsVisibleOnView':true,'IsAutoChecked':false,'AreManualScalesSet':true}}]}]}";
// var res = JsonConvert.SerializeObject(foo);
var deserializedProperty = JsonConvert.DeserializeObject<RootObject>(json);//Throws error
foreach (var item in deserializedProperty.PlotIdVsPersistentScaleData)
{
Console.WriteLine(item.Value);
foreach (var item2 in item.Key)
{
Console.WriteLine(item.Key);
}
}
Console.Read();
}
}
根据您的Json，您的模型如下所示
public class UnitInfo
{
public string UnitId { get; set; }
public string SubunitId { get; set; }
}
public class Key
{
public int AxisType { get; set; }
public UnitInfo UnitInfo { get; set; }
}
public class UnitInfo2
{
public string UnitId { get; set; }
public string SubunitId { get; set; }
}
public class Value2
{
public string Units { get; set; }
public double MaxScale { get; set; }
public double MinScale { get; set; }
public bool IsAuto { get; set; }
public string Axes { get; set; }
public int AxisType { get; set; }
public UnitInfo2 UnitInfo { get; set; }
public bool IsMinLessThanMax { get; set; }
}
public class Value
{
public Key Key { get; set; }
public Value2 Value_ { get; set; }
}
public class PersistentScaleInfo
{
public int Key { get; set; }
public List<Value> Value { get; set; }
}
public class PlotIdVsLocalScaleType
{
public string Key { get; set; }
public int Value { get; set; }
}
public class UnitInfo3
{
public string UnitId { get; set; }
public string SubunitId { get; set; }
}
public class Key2
{
public int AxisType { get; set; }
public UnitInfo3 UnitInfo { get; set; }
}
public class ManualScaleRange
{
public double MaxScale { get; set; }
public double MinScale { get; set; }
}
public class Value4
{
public ManualScaleRange ManualScaleRange { get; set; }
public bool IsVisibleOnView { get; set; }
public bool IsAutoChecked { get; set; }
public bool AreManualScalesSet { get; set; }
}
public class Value3
{
public Key2 Key { get; set; }
public Value4 Value { get; set; }
}
public class PlotIdVsPersistentScaleData
{
public string Key { get; set; }
public List<Value3> Value { get; set; }
}
public class RootObject
{
public List<PersistentScaleInfo> PersistentScaleInfo { get; set; }
public List<PlotIdVsLocalScaleType> PlotIdVsLocalScaleType { get; set; }
public List<PlotIdVsPersistentScaleData> PlotIdVsPersistentScaleData { get; set; }
}