反序列化出现异常：SerializationException 在分析完成之前就遇到流结尾

/// <summary> /// 处理配置文件类 /// </summary> public class ConfigClass { /// <summary> /// 读取配置文件 /// </summary> /// <param name="strPath"></param> /// <returns></returns> public UserConfig ReadUserConfig(string strPath) { UserConfig config = new UserConfig(); MemoryStream ms = new MemoryStream (); try { using (FileStream fs = new FileStream(strPath,FileMode.Open,FileAccess.Read)) { byte[] buffer = new byte[fs.Length]; int length = fs.Read(buffer, 0, (int)fs.Length); fs.Close(); ms.Write(buffer, 0, length); // 将字节写入内存流以备序列化使用 ms.Flush(); } } catch (IOException ioex) { throw new MyException("读取配置信息失败!", ioex, "ConfigClass", "Client"); } try { BinaryFormatter formatter = new BinaryFormatter(); //执行反序列化之前需要将流的指针移动到开头 //ms.Seek(0, SeekOrigin.Begin); ms.Position = 0; config = formatter.Deserialize(ms) as UserConfig; } catch (SerializationException ex) { throw new MyException("反序列化失败，配置文件已损坏!", ex, "ConfigClass", "Client"); } catch (System.Security.SecurityException sex) { throw new MyException("反序列化失败，配置文件已损坏!", sex, "ConfigClass", "Client"); } return config; } /// <summary> /// 保存配置文件 /// </summary> /// <param name="strPath"></param> /// <param name="config"></param> public void WriteUserConfig(string strPath, UserConfig config) { MemoryStream ms = new MemoryStream(); BinaryFormatter formatter = new BinaryFormatter(); // 将配置信息 序列化 并存入内存流中 formatter.Serialize(ms, config); try { using (FileStream fs = new FileStream(strPath,FileMode.Create,FileAccess.Write)) // 使用UTF8编码格式 覆写已存在的文件 { byte[] buffer = ms.ToArray(); fs.Write(buffer, 0, buffer.GetLength(0)); fs.Close(); } } catch (IOException ioex) { throw new MyException("保存配置信息失败", ioex, "ConfigClass", "Client"); } } }