使用yamldotnet反序列化yaml时出错-未找到属性
使用yamldotnet反序列化yaml时出错-未找到属性
提问于 2021-01-24 06:37:50
我使用了C#、YamlDotNet，并遵循下面的示例：How to deserialize YAML with YAMLDotNet?
但我得到了以下错误：
Exception thrown: 'YamlDotNet.Core.YamlException' in YamlDotNet.dll
YamlDotNet.Core.YamlException: (Line: 1, Col: 1, Idx: 0) - (Line: 1, Col: 1, Idx: 0): Exception during deserialization ---> System.Runtime.Serialization.SerializationException: Property 'PlatForm' not found on type 'NAC21_Calculator.UserSoft'.
at YamlDotNet.Serialization.TypeInspectors.TypeInspectorSkeleton.GetProperty(Type type, Object container, String name, Boolean ignoreUnmatched)
at YamlDotNet.Serialization.NodeDeserializers.ObjectNodeDeserializer.YamlDotNet.Serialization.INodeDeserializer.Deserialize(IParser parser, Type expectedType, Func`3 nestedObjectDeserializer, Object& value)
at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
--- End of inner exception stack trace ---
at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
at YamlDotNet.Serialization.ValueDeserializers.AliasValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
at YamlDotNet.Serialization.Deserializer.Deserialize(IParser parser, Type type)
at YamlDotNet.Serialization.Deserializer.Deserialize[T](IParser parser)
at YamlDotNet.Serialization.Deserializer.Deserialize[T](TextReader input)
at NAC21_Calculator.YamlImporter.Deserialize(String yamlName) in D:\UserInput.cs:line 124
at NAC21_Calculator.UserInput.GenerateBut_click(Object sender, EventArgs e) in D:\UserInput.cs:line 68
The program '[20556] NAC21_Calculator.exe' has exited with code 0 (0x0).yaml文件内容为：
PlatForm: windows
Version: 10
# Software Info
SOFTWARE:
Software-01:
NAME : MFS2020
VERSION : 1.12.2015
Customized : true
Software-02:
NAME : DCS
VERSION : 6
Customized : false对象定义：
public class UserSoft
{
public List<string> PlatForm { get; set; }
public List<string> Version { get; set; }
public List<software> SOFTWARE { get; set; }
public class software
{
public string NAME { get; set; }
public string VERSION { get; set; }
public string Customized { get; set; }
}
}并在按下以下按钮的同时执行反序列化：
private void GenerateBut_click(object sender, EventArgs e)
{
UserSoft obj = YamlImporter.Deserialize("file_template.yml");
Console.WriteLine("Platform: {0}", obj.PlatForm);
Console.WriteLine("Version: {0}", obj.Version);
foreach (var soft in obj.SOFTWARE)
Console.WriteLine("Software: {0}", soft);
}
catch (Exception Ex)
{
Console.WriteLine(Ex.ToString());
}
}
public class YamlImporter
{
public static UserSoft Deserialize(string yamlName)
{
StreamReader sr = new StreamReader(yamlName);
string text = sr.ReadToEnd();
var input = new StringReader(text);
var deserializer = new DeserializerBuilder().WithNamingConvention(CamelCaseNamingConvention.Instance).Build();
UserSoft deserializeObject = deserializer.Deserialize<UserSoft>(input); /* compile error */
return deserializeObject;
}
}我是C#的新手，这个问题是唯一真正阻碍我的问题。提前谢谢。
回答 1
Stack Overflow用户
回答已采纳
发布于 2021-01-25 19:01:09
这里有一些问题。
首先，您的PlatForm和Version属性是List<string>类型，但值只是一个字符串。
其次，您的SOFTWARE属性并不表示列表，而是一个映射-字符串"Software-01“和"Software-02”实际上是映射中的键。
第三，您已经明确表示希望使用驼峰大小写命名约定进行反序列化，但您的YAML实际上并没有使用该约定。
下面是一个最小的完整示例，其中更正了这些方面：
using System;
using System.Collections.Generic;
using System.IO;
using YamlDotNet.Serialization;
public class UserSoft
{
public string PlatForm { get; set; }
public string Version { get; set; }
public Dictionary<string, software> SOFTWARE { get; set; }
public class software
{
public string NAME { get; set; }
public string VERSION { get; set; }
public string Customized { get; set; }
}
}
class Program
{
static void Main(string[] args)
{
string text = File.ReadAllText("test.yaml");
var deserializer = new DeserializerBuilder().Build();
UserSoft deserialized = deserializer.Deserialize<UserSoft>(text);
Console.WriteLine($"Platform: {deserialized.PlatForm}");
Console.WriteLine($"Version: {deserialized.Version}");
foreach (var pair in deserialized.SOFTWARE)
{
var value = pair.Value;
Console.WriteLine($"{pair.Key}: Name={value.NAME}; Version={value.VERSION}; Customized={value.Customized}");
}
}
}输出：
Platform: windows
Version: 10
Software-01: Name=MFS2020; Version=1.12.2015; Customized=true
Software-02: Name=DCS; Version=6; Customized=false另外，我强烈建议您尽量保持大小写一致，并遵循.NET命名约定。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/65865192
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