单点触发序列化问题

我有一个奇怪的问题反序列化，并想知道是否有人可以阐明它。对不起，粗略的代码，但这意味着一个原型。单点触发序列化问题

基本上我试图序列和反序列化一个简单的类：

[Serializable] 

[Preserve(AllMembers=true)] 

public class School 

{ 

    public School() 

    { 

    } 

    public string est_name{get; set;} 

      public string postcode{get; set;} 

      public string phase {get; set;} 

      public string head_name{get; set;} 

      public string urn {get; set;} 

      public long distance{get; set;} 

      public string coord{get; set;} 

      public string gender{get; set;} 

      public int totpup{get; set;} 

    public int totelig{get; set;} 

    public float pmattest14p{get; set;} 

    public float pmattest15{get; set;} 

     public float pengtest14p{get; set;} 

     public float pengtest15{get; set;} 

        public float apsengmattest{get; set; 

     }

用于序列化代码如下，使用学校[]作为T，它从一个普通的类中的方法：

public void serializesample(T sample) 

    { 

     XmlSerializer serializer = new XmlSerializer(typeof(T)); 

     string path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "Sample2.xml")  Stream st = new FileStream(path, FileMode.OpenOrCreate); 

     XmlWriter w = new XmlTextWriter(st, Encoding.UTF8); 

        serializer.Serialize(w, sample); 

     st.Flush(); 

       st.Close(); 

      }

所得下面的XML文件中：

<?xml version="1.0" encoding="utf-8"?> 

<ArrayOfSchool xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 

<School><est_name>testName</est_name><postcode>N7 0NA</postcode><head_name>thedude</head_name><distance>0</distance><gender>mixed</gender><totpup>0</totpup><totelig>0</totelig><pmattest14p>0</pmattest14p><pmattest15>0</pmattest15><pengtest14p>5</pengtest14p><pengtest15>3</pengtest15><apsengmattest>0</apsengmattest></School><School><est_name>testName2</est_name><postcode>N7 4NA</postcode><head_name>thedude</head_name><distance>0</distance><gender>mixed2</gender><totpup>0</totpup><totelig>0</totelig><pmattest14p>0</pmattest14p><pmattest15>0</pmattest15><pengtest14p>5</pengtest14p><pengtest15>3</pengtest15><apsengmattest>0</apsengmattest></School></ArrayOfSchool>

的反序列化码是小号如下，学校[]作为T：

private T ReadObject(XmlReader reader) 
    { 

    XmlSerializer serializer = new XmlSerializer(typeof(T)); 
    return (T)serializer.Deserialize(reader); 
    } 

XmlReader r = XmlReader.Create(new  FileStream(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "Sample2.xml"), FileMode.Open)); 

e.responseObject = ReadObject(r);

我不断收到以下异常在最后列出的行 “responseObject =的readObject（R）;”：

System.InvalidOperationException：有一个错误在XML文档中。（System.Xml.Serialization.XmlTypeMapping rootMap）/ Developer/MonoTouch/Source/mono/mcs /下的System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadRoot（0x00050），System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadRoot（System.Xml.Serialization.XmlTypeMapping rootMap）不支持System.InvalidOperationException class/System.XML/System.Xml.Serialization/XmlSerializationReaderInterpreter.cs：182 at System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadRoot（）[0x00028] in /Developer/MonoTouch/Source/mono/mcs/class/System.XML /System/Xml.Serialization/XmlSerializationReaderInterpreter.cs:87 at System.Xml.Serialization.XmlSerializer.Deserialize（System.Xml.Serialization.XmlSerializationReader reader）[0x0001c] in/Developer/MonoTouch/Source/mono/mcs/class/System.XML/System.Xml.Serialization/XmlSerializer.cs：361 ---内部异常堆栈跟踪结束--- 在System.Xml.Serialization.XmlSerializer.Deser System.Xml.Serialization中的/Developer/MonoTouch/Source/mono/mcs/class/System.XML/System.Xml.Serialization/XmlSerializer.cs:366 中的ialize（System.Xml.Serialization.XmlSerializationReader reader）[0x00061] .XmlSerializer.Deserialize（System.Xml.XmlReader xmlReader）[0x0002c]位于Burnspeed.Utilities的/Developer/MonoTouch/Source/mono/mcs/class/System.XML/System.Xml.Serialization/XmlSerializer.cs:350 中。 WebRequestHelper 1[SchoolFinder_Prototype.School[]].ReadObject (System.Xml.XmlReader stream) [0x00010] in /Users/Khalil/Desktop/Monotouch Utility/Burnspeed.Utilities/Burnspeed.Utilities/WebRequestHelper.cs:201 at Burnspeed.Utilities.WebRequestHelper 1 [SchoolFinder_Prototype.School []] ProcessHttpResponseAndFire（IAsyncResult的IAR）[0x000ae]在/用户/方/桌面/ MonoTouch的效用/ Burnspeed.Utilities/Burnspeed.Utilities/WebRequestHelper.cs：156

来源

2011-01-29 KhalilD

我不完全确定为什么会发生这种异常。我只用很小的修改就可以试用你的代码，并且它很有效我没有使用[Preserve（AllMembers = true）]，我用School []代替了每个T（你也这么做了，不是吗？），并且我替换了“e.responseObject = ReadObject（r） “，你的例外发生在”School [] newArray = ReadObject（r）“。不想编写其余的代码不修改这些小小的代码。

而是由学校[]代替每个T的，你也可以改变方法

public void serializesample<T>(T sample) { 

     XmlSerializer serializer = new XmlSerializer(typeof(T)); 

     string path = "G:\\sample.xml"; 
     Stream st = new FileStream(path, FileMode.OpenOrCreate); 

     XmlWriter w = new XmlTextWriter(st, Encoding.UTF8); 

     serializer.Serialize(w, sample); 

     st.Flush(); 

     st.Close(); 

    } 

    private T ReadObject<T>(XmlReader reader) { 

     XmlSerializer serializer = new XmlSerializer(typeof(T)); 
     return (T)serializer.Deserialize(reader); 
    }

，并通过serializesample<School[]>(array)和ReadObject<School[]>(r)给他们打电话。

我只是不确定你在代码中用T做了什么，我猜这个问题可能在某处。希望有所帮助，即使它可能无法帮助，如果异常来自Monotouch [Preserve（AllMembers = true）]。

来源

2011-01-29 13:26:40

单点触发序列化问题

回答

相关问题