怎样提高WebService的性能(打印)

怎样提高WebService的性能

服务器端WebService程序

using System.Runtime.Serialization.Formatters.Binary;

using System.IO;

using pression;

using System.Data.SqlClient;

………

public class Service1 : System.Web.Services.WebService

{

[WebMethod(Description = "直接返回 DataSet 对象。")]

public DataSet GetNorthwindDataSet()

{

string sql = "SELECT * FROM XT_TEXT";

SqlConnection conn = new SqlConnection("Server=60.28.25.58;DataBase=s168593;user

id=s168593;password=h0y+FeC*;");

conn.Open();

SqlDataAdapter dataadapter = new SqlDataAdapter(sql, conn);

DataSet ds = new DataSet();

dataadapter.Fill(ds, "XT_TEXT");

conn.Close();

return ds;

}

[WebMethod(Description = "返回 DataSet 对象用 Binary 序列化后的字节数组。")]

public byte[] GetDataSetBytes()

{

DataSet dataSet = GetNorthwindDataSet();

BinaryFormatter ser = new BinaryFormatter();

MemoryStream ms = new MemoryStream();

ser.Serialize(ms, dataSet);

byte[] buffer = ms.ToArray();

return buffer;

}

[WebMethod(Description = "返回 DataSetSurrogate 对象用 Binary 序列化后的字节数组。")] public byte[] GetDataSetSurrogateBytes()

{

DataSet dataSet = GetNorthwindDataSet();

DataSetSurrogate dss = new DataSetSurrogate(dataSet);

BinaryFormatter ser = new BinaryFormatter();

MemoryStream ms = new MemoryStream();

ser.Serialize(ms, dss);

byte[] buffer = ms.ToArray();

return buffer;

}

[WebMethod(Description = "返回 DataSetSurrogate 对象用 Binary 序列化并 Zip 压缩后的字节数组。")] public byte[] GetDataSetSurrogateZipBytes()

{

DataSet dataSet = GetNorthwindDataSet();

DataSetSurrogate dss = new DataSetSurrogate(dataSet);

BinaryFormatter ser = new BinaryFormatter();

MemoryStream ms = new MemoryStream();

ser.Serialize(ms, dss);

byte[] buffer = ms.ToArray();

byte[] zipBuffer = Compress(buffer);

return zipBuffer;

}

public byte[] Compress(byte[] data)

{

try

{

MemoryStream ms = new MemoryStream();

Stream zipStream = null;

zipStream = new GZipStream(ms, press, true);

zipStream.Write(data, 0, data.Length);

zipStream.Close();

ms.Position = 0;

byte[] compressed_data = new byte[ms.Length];

ms.Read(compressed_data, 0, int.Parse(ms.Length.ToString()));

return compressed_data;

}

catch

{

return null;

}

}

}

客户端WebService程序

private void button1_Click(object sender, EventArgs e)

{

com.dzbsoft.www.Service1 ds = new com.dzbsoft.www.Service1();

DateTime dtBegin = DateTime.Now;

DataSet dataSet = ds.GetNorthwindDataSet();

bel1.Text = string.Format("耗时：{0}", DateTime.Now - dtBegin);

binddata(dataSet);

}

private void button2_Click(object sender, EventArgs e)

{

com.dzbsoft.www.Service1 ds = new com.dzbsoft.www.Service1();

DateTime dtBegin = DateTime.Now;

byte[] buffer = ds.GetDataSetBytes();

BinaryFormatter ser = new BinaryFormatter();

DataSet dataSet = ser.Deserialize(new MemoryStream(buffer)) as DataSet;

bel2.Text = string.Format("耗时：{0}", DateTime.Now - dtBegin) + " " + buffer.Length;