从我们的 Android 应用程序到 WCF 服务的一些请求会导致以下错误：
System.Runtime.Serialization.SerializationException：反序列化 xxx.SaveChangesCommand 类型的对象时出错。'�rg�rden' 包含无效的 UTF8 字节。---> System.Xml.XmlException: '�rg�rden' 包含无效的 UTF8 字节。---> System.Text.DecoderFallbackException：无法将索引 0 处的字节 [E6] 从指定代码页转换为 Unicode。
在 System.Text.DecoderExceptionFallbackBuffer.Throw(Byte[] bytesUnknown, Int32 index) 在 System.Text.DecoderExceptionFallbackBuffer.Fallback(Byte[] bytesUnknown, Int32 index) 在 System.Text.DecoderFallbackBuffer.InternalFallback(Byte[] bytes, Byte* pBytes, Char*& chars) 在 System.Text.UTF8Encoding.FallbackInvalidByteSequence(Byte*& pSrc, Int32 ch, DecoderFallbackBuffer fallback, Char*& pTarget) 在 System.Text.UTF8Encoding.GetChars(Byte* bytes, Int32 byteCount, Char* chars, Int32 charCount, DecoderNLS baseDecoder) 在 System.Text.UTF8Encoding.GetChars(Byte[] bytes, Int32 byteIndex, Int32 byteCount, Char[] chars, Int32 charIndex) 在 System.Xml.XmlConverter.ToChars(Byte[] 缓冲区， Int32 偏移量、Int32 计数、Char[] 字符、Int32 charOffset)
--- End of inner exception堆栈跟踪---在 System.Xml.XmlConverter.ToChars(Byte[] buffer, Int32 offset, Int32 count, Char[] chars, Int32 charOffset) at System.Xml.XmlBufferReader.GetChars(Int32 offset, Int32 length, Char[ ] chars) 在 System.Xml.XmlBufferReader.GetString(Int32 offset, Int32 length) 在 System.Xml.ValueHandle.GetString() 在 System.Xml.XmlBaseReader.ReadContentAsString() 在 System.Xml.XmlBaseReader.ReadElementContentAsString() 在 ReadArrayOfstringFromJson （XmlReaderDelegator，XmlObjectSerializerReadContextComplexJson，XmlDictionaryString，XmlDictionaryString，CollectionDataContract）在 System.Runtime.Serialization.Json.JsonCollectionDataContract.ReadJsonValueCore（XmlReaderDelegator jsonReader，XmlObjectSerializerReadContextComplexJson 上下文）在 System.Runtime.Serialization.Json.JsonDataContract。ReadJsonValue(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context) 在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator reader, String name, String ns, Type declaredType, DataContract & dataContract) at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator, Int32 xmlReader ，在 System.Runtime.Serialization.Json.JsonClassDataContract.ReadJsonValueCore(XmlReaderDelegator jsonReader, XmlObjectSerializerReaderComplexJson) 处的 ReadSaveShoppingListChangesCommandFromJson (XmlReaderDelegator, XmlObjectSerializerReadContextComplexJson, XmlDictionaryString, XmlDictionaryString[] ) .JsonDataContract.ReadJsonValue(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson 上下文) 在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator reader, String name, String ns, Type declaredType, DataContract & dataContract) at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize,(XmlReaderDelegator在 System.Runtime.Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName) 在 System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver )ReadJsonValue（XmlReaderDelegator jsonReader，XmlObjectSerializerReadContextComplexJson 上下文）在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize（XmlReaderDelegator 阅读器，字符串名称，字符串 ns，类型声明类型，DataContract 和 dataContract）在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize（XmlReaderDelegator xmlReader 声明, DataContract dataContract, String name, String ns) at System.Runtime.Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName) at System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)ReadJsonValue（XmlReaderDelegator jsonReader，XmlObjectSerializerReadContextComplexJson 上下文）在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize（XmlReaderDelegator 阅读器，字符串名称，字符串 ns，类型声明类型，DataContract 和 dataContract）在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize（XmlReaderDelegator xmlReader 声明, DataContract dataContract, String name, String ns) at System.Runtime.Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName) at System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)XmlObjectSerializerReadContextComplexJson context) 在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator reader, String name, String ns, Type declaredType, DataContract& dataContract) 在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator xmlReader, Type declaredType, DataContract dataContract, String名称，字符串 ns) 在 System.Runtime.Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName) 在 System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)XmlObjectSerializerReadContextComplexJson context) 在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator reader, String name, String ns, Type declaredType, DataContract& dataContract) 在 System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator xmlReader, Type declaredType, DataContract dataContract, String名称，字符串 ns) 在 System.Runtime.Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName) 在 System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator xmlReader, Type declaredType, DataContract dataContract, String name, String ns) 在 System.Runtime. System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions 处的 Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName) (XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator xmlReader, Type declaredType, DataContract dataContract, String name, String ns) 在 System.Runtime. System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions 处的 Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName) (XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)System.Runtime.Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName) 在 System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions （XmlReaderDelegator 读取器，布尔型 verifyObjectName，DataContractResolver dataContractResolver）System.Runtime.Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName) 在 System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions （XmlReaderDelegator 读取器，布尔型 verifyObjectName，DataContractResolver dataContractResolver）XmlObjectSerializer.ReadObjectHandleExceptions（XmlReaderDelegator 读取器，布尔值 verifyObjectName，DataContractResolver dataContractResolver）XmlObjectSerializer.ReadObjectHandleExceptions（XmlReaderDelegator 读取器，布尔值 verifyObjectName，DataContractResolver dataContractResolver）
--- 内部异常堆栈跟踪结束 ---
在 System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions（XmlReaderDelegator reader，Boolean verifyObjectName，DataContractResolver dataContractResolver）在 System.Runtime.Serialization.Json.DataContractJsonSerializer.ReadObject（XmlDictionaryReader reader，Boolean verifyObjectName）在 System.ServiceModel.Dispatcher.SingleBodyParameterMessageFormatter.DeserializeRequest（消息消息，Object[] 参数）在 System.ServiceModel.Dispatcher.DemultiplexingDispatchMessageFormatter.DeserializeRequest（消息消息，Object[] 参数）在 System.ServiceModel.Dispatcher.UriTemplateDispatchFormatter.DeserializeRequest（消息消息，Object[] 参数）在 System.ServiceModel System.ServiceModel 处的 .Dispatcher.DispatchOperationRuntime.DeserializeInputs(MessageRpc& rpc)。Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc) 在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc) 在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc) 在 System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet )
我一直在寻找一些类似的案例，我发现了这个链接：
Configuring the .NET WCF UTF-8 deserializer to modify/discard non-shortest form chars instead of throwing an exception？
使用非最短形式可能修复 UTF-8 的错误 - 如果是这种情况，在我看来。
但我不明白为什么这个修复是必要的，因为如此处所述：
https ://blogs.oracle.com/CoreJavaTechTips/entry/the_overhaul_of_java_utf
新的 UTF-8 字符集实现已集成在 JDK7、Open JDK 6、JDK 6 update 11 及更高版本、JDK5.0u17 和 1.4.2_19 中。
当我查看请求时，我看到：
HTTP_USER_AGENT：Apache-HttpClient/不可用（java 1.4）
但是Android应用是用jdk1.7.0_13编译的
我应该如何解决这个问题？