C# JSON在反序列化后不保留值
我想反序列化一个字符串,它实际上是一个对象数组,这是序列化的输出C# JSON在反序列化后不保留值,c#,.net,serialization,deserialization,json-deserialization,C#,.net,Serialization,Deserialization,Json Deserialization,我想反序列化一个字符串,它实际上是一个对象数组,这是序列化的输出 [ { \"CallType\":1,\ "ExecutionStart\":\"2018-07-03T12:25:55.1919951+03:00\",\ "ExecutionEnd\":\"2018-07-03T12:25:55.3980081+03:00\",\ "UnitExecutionStart\":\"000
[
{
\"CallType\":1,\
"ExecutionStart\":\"2018-07-03T12:25:55.1919951+03:00\",\
"ExecutionEnd\":\"2018-07-03T12:25:55.3980081+03:00\",\
"UnitExecutionStart\":\"0001-01-01T00:00:00\",\
"OverallExecution\":205
}
]
这是我要反序列化的对象
[JsonObject]
public class PerformanceMetricsItemDtoX
{
public PerformanceMetricsItemDtoX()
{
}
public CallType CallType { get; } //=> CallType is an enum
public DateTime ExecutionStart { get; }
public DateTime ExecutionEnd { get; }
public DateTime UnitExecutionStart { get; }
public long OverallExecution { get; }
}
反序列化后
var result = value.SelectMany(item =>
JsonConvert.DeserializeObject<List<PerformanceMetricsItemDtoX>>(item));
var result=value.SelectMany(项=>
JsonConvert.DeserializeObject(item));
最终对象结果具有默认值,因此不会保留序列化版本中存储的值
我做错了什么
谢谢
顺便说一句,我试过使用
var result = new System.Web.Script.Serialization.JavaScriptSerializer()
.Deserialize<List<PerformanceMetricsItemDtoX>>(value.FirstOrDefault());
var result=new System.Web.Script.Serialization.JavaScriptSerializer()
.反序列化(value.FirstOrDefault());
但是输出是相同的。您的
PerformanceMetricsItemDtoX
属性是只读的,因此调用构造函数后,JsonConvert
(实际上没有人)不能为它们赋值。使用以下命令:
[JsonObject]
public class PerformanceMetricsItemDtoX
{
public CallType CallType { get; set; } //=> CallType is an enum
public DateTime ExecutionStart { get; set; }
public DateTime ExecutionEnd { get; set; }
public DateTime UnitExecutionStart { get; set; }
public long OverallExecution { get; set; }
}
您的
PerformanceMetricsItemDtoX
属性是只读的,因此调用构造函数后,JsonConvert
(实际上没有人)无法为它们赋值。使用以下命令:
[JsonObject]
public class PerformanceMetricsItemDtoX
{
public CallType CallType { get; set; } //=> CallType is an enum
public DateTime ExecutionStart { get; set; }
public DateTime ExecutionEnd { get; set; }
public DateTime UnitExecutionStart { get; set; }
public long OverallExecution { get; set; }
}
值
变量是JSON字符串吗?如果是这样,代码将尝试将单个字符反序列化到DTO(请记住,字符串可以被视为字符数组)。试试这个:var dtoList=JsonConvert.DeserializeObject(value))
变量是JSON字符串吗?如果是这样,代码将尝试将单个字符反序列化到DTO(请记住,字符串可以被视为字符数组)。试试这个:var dtoList=JsonConvert.DeserializeObject(value))
回答得很好,谢谢,完全忽略了这一点。谢谢回答得很好,谢谢,完全错过了这个。谢谢