怎样提高WebService的性能

服务器端WebService程序：

1. usingSystem.Runtime.Serialization.Formatters.Binary;
2. usingSystem.IO;
3. usingSystem.IO.ComPRession;
4. usingSystem.Data.SqlClient;
5. ………
6. publicclassService1:System.Web.Services.WebService
7. {
9. [WebMethod(Description="直接返回DataSet对象。")]
10. publicDataSetGetNorthwindDataSet()
11. {
12. stringsql="SELECT*FROMXT_TEXT";
13. SqlConnectionconn=newSqlConnection("Server=60.28.25.58;DataBase=s168593;userid=s168593;passWord=h0y+FeC*;");
14. conn.Open();
15. SqlDataAdapterdataadapter=newSqlDataAdapter(sql,conn);
16. DataSetds=newDataSet();
17. dataadapter.Fill(ds,"XT_TEXT");
18. conn.Close();
19. returnds;
20. }
22. [WebMethod(Description="返回DataSet对象用Binary序列化后的字节数组。")]
23. publicbyte[]GetDataSetBytes()
24. {
25. DataSetdataSet=GetNorthwindDataSet();
26. BinaryFormatterser=newBinaryFormatter();
27. MemoryStreamms=newMemoryStream();
28. ser.Serialize(ms,dataSet);
29. byte[]buffer=ms.ToArray();
30. returnbuffer;
31. }
33. [WebMethod(Description="返回DataSetSurrogate对象用Binary序列化后的字节数组。")]
34. publicbyte[]GetDataSetSurrogateBytes()
35. {
36. DataSetdataSet=GetNorthwindDataSet();
37. DataSetSurrogatedss=newDataSetSurrogate(dataSet);
38. BinaryFormatterser=newBinaryFormatter();
39. MemoryStreamms=newMemoryStream();
40. ser.Serialize(ms,dss);
41. byte[]buffer=ms.ToArray();
42. returnbuffer;
43. }
45. [WebMethod(Description="返回DataSetSurrogate对象用Binary序列化并Zip压缩后的字节数组。")]
46. publicbyte[]GetDataSetSurrogateZipBytes()
47. {
48. DataSetdataSet=GetNorthwindDataSet();
49. DataSetSurrogatedss=newDataSetSurrogate(dataSet);
50. BinaryFormatterser=newBinaryFormatter();
51. MemoryStreamms=newMemoryStream();
52. ser.Serialize(ms,dss);
53. byte[]buffer=ms.ToArray();
54. byte[]zipBuffer=Compress(buffer);
55. returnzipBuffer;
56. }
58. publicbyte[]Compress(byte[]data)
59. {
60. try
61. {
62. MemoryStreamms=newMemoryStream();
63. StreamzipStream=null;
64. zipStream=newGZipStream(ms,CompressionMode.Compress,true);
65. zipStream.Write(data,0,data.Length);
66. zipStream.Close();
67. ms.Position=0;
68. byte[]compressed_data=newbyte[ms.Length];
69. ms.Read(compressed_data,0,int.Parse(ms.Length.ToString()));
70. returncompressed_data;
71. }
72. catch
73. {
74. returnnull;
75. }
76. }
77. }
80. 客户端WebService程序
81. [code="C#"]
83. privatevoidbutton1_Click(objectsender,EventArgse)
84. {
85. com.dzbsoft.www.Service1ds=newcom.dzbsoft.www.Service1();
86. DateTimedtBegin=DateTime.Now;
87. DataSetdataSet=ds.GetNorthwindDataSet();
88. this.label1.Text=string.Format("耗时：{0}",DateTime.Now-dtBegin);
89. binddata(dataSet);
90. }
91. privatevoidbutton2_Click(objectsender,EventArgse)
92. {
93. com.dzbsoft.www.Service1ds=newcom.dzbsoft.www.Service1();
94. DateTimedtBegin=DateTime.Now;
95. byte[]buffer=ds.GetDataSetBytes();
96. BinaryFormatterser=newBinaryFormatter();
97. DataSetdataSet=ser.Deserialize(newMemoryStream(buffer))asDataSet;
98. this.label2.Text=string.Format("耗时：{0}",DateTime.Now-dtBegin)+""+buffer.Length;
99. binddata(dataSet);
100. }
101. privatevoidbutton3_Click(objectsender,EventArgse)
102. {
103. com.dzbsoft.www.Service1ds=newcom.dzbsoft.www.Service1();
104. DateTimedtBegin=DateTime.Now;
105. byte[]buffer=ds.GetDataSetSurrogateBytes();
106. BinaryFormatterser=newBinaryFormatter();
107. DataSetSurrogatedss=ser.Deserialize(newMemoryStream(buffer))asDataSetSurrogate;
108. DataSetdataSet=dss.ConvertToDataSet();
109. this.label3.Text=string.Format("耗时：{0}",DateTime.Now-dtBegin)+""+buffer.Length;
110. binddata(dataSet);
111. }
112. privatevoidbutton4_Click(objectsender,EventArgse)
113. {
114. com.dzbsoft.www.Service1ds=newcom.dzbsoft.www.Service1();
115. DateTimedtBegin=DateTime.Now;
116. byte[]zipBuffer=ds.GetDataSetSurrogateZipBytes();
117. byte[]buffer=UnZipClass.Decompress(zipBuffer);
118. BinaryFormatterser=newBinaryFormatter();
119. DataSetSurrogatedss=ser.Deserialize(newMemoryStream(buffer))asDataSetSurrogate;
120. DataSetdataSet=dss.ConvertToDataSet();
121. this.label4.Text=string.Format("耗时：{0}",DateTime.Now-dtBegin)+""+zipBuffer.Length;
122. binddata(dataSet);
123. }
124. privatevoidbinddata(DataSetdataSet)
125. {
126. this.dataGridView1.DataSource=dataSet.Tables[0];
127. this.label5.Text="共计："+dataSet.Tables[0].Rows.Count+"条记录";
128. }
132. 客户端UnZipClass程序
133. [code="C#"]
134. publicstaticclassUnZipClass
135. {
136. publicstaticbyte[]Decompress(byte[]data)
137. {
138. try
139. {
140. MemoryStreamms=newMemoryStream(data);
141. StreamzipStream=null;
142. zipStream=newGZipStream(ms,CompressionMode.Decompress);
143. byte[]dc_data=null;
144. dc_data=ExtractBytesFromStream(zipStream,data.Length);
145. returndc_data;
146. }
147. catch
148. {
149. returnnull;
150. }
151. }
152. publicstaticbyte[]ExtractBytesFromStream(StreamzipStream,intdataBlock)
153. {
154. byte[]data=null;
155. inttotalBytesRead=0;
156. try
157. {
158. while(true)
159. {
160. Array.Resize(refdata,totalBytesRead+dataBlock+1);
161. intbytesRead=zipStream.Read(data,totalBytesRead,dataBlock);
162. if(bytesRead==0)
163. {
164. break;
165. }
166. totalBytesRead+=bytesRead;
167. }
168. Array.Resize(refdata,totalBytesRead);
169. returndata;
170. }
171. catch
172. {
173. returnnull;
174. }
175. }
176. }