![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?由于当前维护的项目的结构是:Winform?
+
?Webservice,所以在数据传输过程中消耗了很多的性能,因此在寻找一种简便实用的优化方法..?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? 先是用BinaryFormatter序列化数据集,经过WebService传输后,客户端接收到byte[]格式的数据,再反序列化,得到数据集,这种方式,在网络传输时间延迟比较长的情况下效果比较明显,否则,序列化和反序列化再传输二进制的时间甚至超过了直接传送DataSet.所以是否采取这种二进制压缩数据集就没有多大意义了.?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? 后来找到上面第一篇台湾同胞的文章,才发现在Vs2005的DataSet已经添加了一个RemotingFormat,是采用另外一种方式压缩的,(传说中.net1.1时期开源的DataSetSurrogate类)不过没有找到这个在什么地方下载,试了一下Vs2005里面的,查询12000条记录,设置RemotingFormat?
=
?SerializationFormat.Binary;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? 再序列化,通过WebService传输,客户端接收,确实效果大大的优于直接传送DataSet,不仅网络传输中如此,即使本机,性能改善也非常明显.?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? 下面分别是WebService里面的方法和客户端反序列化取DataSet的方法.?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??
1
.?服务器上面取数据,填充数据集,转换为二进制格式.?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/daea3cccf0b87f1a363f1c4285999407.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/1187a1b5cf109cb460538252b708a1d5.gif) ??
/**/
/**/
/**/
///?<summary>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??///?Method?for?users?data?query?with?binaryFormatter?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??///?</summary>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??///?<param?name="err"></param>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??///?<returns></returns>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??
public
?
byte
[]?BinaryUserSelect(
ref
?
string
?err)?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/904f6724c19ad56dbfbe074290d149ba.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/fa8c2ca37634b1a3cce78068103d9f2d.gif) ??
...
{?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? ClearCommand();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? m_commandStringBuilder.Append("SELECT?*?FROM?t_Users?;");?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? DataSet?dsResult?=?new?DataSet();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? byte[]?bArrayResult?=?null;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? try?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/79ff9bb93e1aa17cc0cc36ac3e4d3939.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/2487cf1a32ee6fc1e36ede5fb967eae2.gif) ?? ...{?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? dsResult?=?SqlHelper.ExecuteDataset(m_currentConnectionString,?CommandType.Text,?m_commandStringBuilder.ToString());?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? //?上面都是取数据的,无需关心.二进制压缩数据集是下面一小段?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? dsResult.RemotingFormat?=?SerializationFormat.Binary;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? MemoryStream?ms?=?new?MemoryStream();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? IFormatter?bf?=?new?BinaryFormatter();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? bf.Serialize(ms,?dsResult);?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? bArrayResult?=?ms.ToArray();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? ms.Close();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? //?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? }?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? catch?(Exception?ee)?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/47116035bee3a8df0af894a1811ac0b0.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/69ed0ce71fc5353bc1b2b544d237585d.gif) ?? ...{?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? err?=?ee.ToString();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? }?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? return?bArrayResult;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??}
?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??
2
.?通过WebService把byte[]格式的数据发送到客户端,这里就是WebService自己的事情了,我们无需关心?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??
3
.客户端接收到byte[]格式的数据,对其进行反序列化,进行客户端操作.?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/2301f97ae4dec34bd67cff9576b03890.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/6cd167fd98c7e55600814c217902ac25.gif) ??
/**/
/**/
/**/
///?<summary>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??///?Get?user?data?with?Binary?format?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??///?</summary>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??///?<returns></returns>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??
public
?DataSet?GetBinaryUserData()?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/8b8edc8ef3154880c393b7aa81341416.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/904057a5c7ff7da7c90e081cdc9ced14.gif) ??
...
{?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? string?err?=?"";?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? byte[]?bUserData?=?svc.ByteArrayUserSelect(ref?err);?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? if?(err?!=?"")?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/6c416c753fdd34a430ef10679f8e88a3.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/e70b3b39ae0fa9def80718972b32c3b0.gif) ?? ...{?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? MessageBox.Show(err);?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? err?=?"";?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? return?null;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? }?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? //?反序列化的过程?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? MemoryStream?ms?=?new?MemoryStream(bUserData);?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? IFormatter?bf?=?new?BinaryFormatter();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? object?obj?=?bf.Deserialize(ms);?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? DataSet?dsResult?=?(DataSet)obj;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? //?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? ms.Close();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? return?dsResult;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??}
?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? 同样一台机器,手工生成12000条数据,在本地使用WebService分别读取、传输并在客户端显示数据集和byte[]格式的数据,前者平均时间2.3秒,后者平均时间为1.7秒,之间的差别仅在传输过程的格式,还有后者需要的序列化和反序列化的时间.本地WebService传输的差别尚且如此,通过网络传输的时间优化自然会更明显..?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? .net1.1下面微软提供的DataSetSurrogate开发包下载地址:http:
//
support.microsoft.com/default.aspx?scid=kb;en-us;829740?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif)
???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? 对数据集序列化和反序列化的方法进行了一下简单的封装,使其可以得到重用的效果.见下面的类DatFormatter.?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ?? 通过GetBinaryFormatData方法可以转换数据集为二进制,在服务器端使用,转换数据集格式。发送,客户端接收,得到二进制格式数据,使用RetrieveDataSet方法,反序列化,得到数据集,进行客户端操作。通过这些简单的操作(序列化和反序列化,将数据压缩),可以使数据集等体积庞大的对象在远程传递中的时间大大减少,并且可以减少网络中断等问题对程序的影响。?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ???
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??1
using
?System;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??2
using
?System.IO;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??3
using
?System.Data;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??4
using
?System.Runtime.Serialization;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??5
using
?System.Runtime.Serialization.Formatters.Binary;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??
6
?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??7
namespace
?Common?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/462fb6c5613ea43734c7d179e43e2dd1.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/00bd861cc7a5f1d4a2421a12b14dfecb.gif) ??
8
...
{?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??9?public?class?DataFormatter?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/a56517a60e3e978442cd0b721468068f.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/c9f7c32c07b927104450973341972524.gif) ??10?...{?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/bdbb4f4f2c25b722c8b3f5de40e475c7.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/8921cfe1d9cb034afd99c186665bffcc.gif) ??11?private?DataFormatter()?...{?}?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/dfe280aa301d2958a0222ed78cbfe08e.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/5c2e017c5d6a0b7eafd30114f9e83128.gif) ??12?/**//**//**////?<summary>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/c0719d096e5062130f63048e78e6ac9e.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/12c5bbad5d1257939219a90b8b0574e7.gif) ??13?/**////?Serialize?the?Data?of?dataSet?to?binary?format?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/387a2dee00687e07d9a9fd0766b6d704.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/e1241409e898d7e4d1c76b14c62d7376.gif) ??14?/**////?</summary>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/76cf7ad5d3275d563e88a09f249ac3b4.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/71e7472721c3acd755a398ed410f0b01.gif) ??15?/**////?<param?name="dsOriginal"></param>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/1dadb51264b3d6e9f6f5d74e2fd30a9a.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/695eb72d246b019ba956e2dfa1a99f52.gif) ??16?/**////?<returns></returns>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??17?static?public?byte[]?GetBinaryFormatData(DataSet?dsOriginal)?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/9ca51ab05e25440f48d88de55cf7f123.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/fa841503870ccd3fa90548133342cdf6.gif) ??18?...{?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??19?byte[]?binaryDataResult?=?null;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??20?MemoryStream?memStream?=?new?MemoryStream();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??21?IFormatter?brFormatter?=?new?BinaryFormatter();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??22?dsOriginal.RemotingFormat?=?SerializationFormat.Binary;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??23?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??24?brFormatter.Serialize(memStream,?dsOriginal);?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??25?binaryDataResult?=?memStream.ToArray();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??26?memStream.Close();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??27?memStream.Dispose();?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??28?return?binaryDataResult;?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??29?}?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/fb1421990d1dbc84e8f7f24ee2c4baea.gif)
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/e0ae864861b26331d11758677a056e00.gif) ??30?/**//**//**////?<summary>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/fe39278f47ff9046e22059b548ce627d.gif)
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![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/252f0ed225eb271bf4ef92ec6f44e9fb.gif) ??32?/**////?</summary>?
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![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4e8729ee506da0bb74df35d33b232249.gif) ??34?/**////?<returns></returns>?
![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??35?static?public?DataSet?RetrieveDataSet(byte[]?binaryData)?
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![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??39?IFormatter?brFormatter?=?new?BinaryFormatter();?
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![](http://img50.lidatong.com.cn//uploads/allimg/c20201216/4755043869be5968af184a8a4bae81f5.gif) ??43?return?dataSetResult;?
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47
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