1?using?System;
??2?using?System.Data;
??3?using?System.Data.SqlClient;
??4?using?System.Configuration;
??5?using?System.Web.UI.WebControls;
??6?//using?Shaka.FileOperator;
??7?namespace?Shaka.Database
??8?{
??9??///?<summary>
?10??///?SQLHelper?的摘要說明。
?11??///?</summary>
?12??public?class?SQLHelper
?13??{
?14???//數據庫連接串
?15???public???string?ConnString?=?ConfigurationSettings.AppSettings["ConnString"];??
?16???private?SqlConnection?conn;?
?17???private?SqlCommand?cmd;
?18???private?SqlDataAdapter?myAdapter;?
?19???private?DataSet?ds;???
?20???public?string?filename;
?21???public?int?filesize;
?22?
?23???public?SQLHelper()
?24???{?
?25????Open();
?26???}
?27???///?<summary>
?28???///?打開數據庫連接
?29???///?</summary>
?30???public?void?Open()
?31???{
?32????if?(conn?==?null)
?33????{
?34?????conn?=?new?SqlConnection(ConnString);
?35?????try
?36?????{
?37??????conn.Open();
?38?????}
?39?????catch(Exception?e?)
?40?????{
?41??????throw?e;
?42?????}
?43????}
?44???}
?45?
?46???///?<summary>
?47???///?關閉數據庫連接
?48???///?</summary>
?49???public?void?Close()
?50???{
?51????if?(conn.State?==?ConnectionState.Open)
?52?????conn.Close();
?53????conn.Dispose();
?54????conn?=?null;
?55???}
?56?
?57???///?<summary>
?58???///?創建命令對象，調用存儲過程
?59???///?</summary>
?60???///?<param?name="procName">存儲過程名稱.</param>
?61???///?<param?name="prams">存儲過程參數.</param>
?62???///?<returns>返回命令對象.</returns>
?63???private?SqlCommand?CreateCommand(string?procName,?SqlParameter[]?prams)?
?64???{
?65????//?確保連接是打開的
?66????Open();
?67????cmd?=?new?SqlCommand(procName,?conn);
?68????cmd.CommandType?=?CommandType.StoredProcedure;
?69?
?70????//?給存儲過程添加參數
?71????if?(prams?!=?null)?
?72????{
?73?????foreach?(SqlParameter?parameter?in?prams)
?74??????cmd.Parameters.Add(parameter);
?75????}
?76????
?77????//?返回參數
?78????cmd.Parameters.Add(
?79?????new?SqlParameter("ReturnValue",?SqlDbType.Int,?4,
?80?????ParameterDirection.ReturnValue,?false,?0,?0,
?81?????string.Empty,?DataRowVersion.Default,?null));
?82?
?83????return?cmd;
?84???}
?85?
?86??
?87???///?<summary>
?88???///?運行存儲過程
?89???///?</summary>
?90???///?<param?name="procName"></param>
?91???///?<returns></returns>
?92???public?int?RunProc(string?procName)?
?93???{
?94????cmd?=?CreateCommand(procName,?null);
?95????cmd.ExecuteNonQuery();???
?96????return?(int)cmd.Parameters["ReturnValue"].Value;
?97???}
?98?
?99???///?<summary>
100???///?運行帶參數的存儲過程
101???///?</summary>
102???///?<param?name="procName">存儲過程名稱.</param>
103???///?<param?name="prams">存儲過程參數.</param>
104???///?<returns>返回值.</returns>
105???public?int?RunProc(string?procName,?SqlParameter[]?prams)?
106???{
107????cmd?=?CreateCommand(procName,?prams);
108????cmd.ExecuteNonQuery();???
109????return?(int)cmd.Parameters["ReturnValue"].Value;
110???}
111?
112???///?<summary>
113???///?運行存儲過程
114???///?</summary>
115???///?<param?name="procName">存儲過程名稱.</param>
116???///?<param?name="dataReader">返回值.</param>
117???public?void?RunProc(string?procName,?out?SqlDataReader?dataReader)?
118???{
119????cmd?=?CreateCommand(procName,?null);
120????dataReader?=?cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
121???}
122?
123???///?<summary>
124???///?運行存儲過程
125???///?</summary>
126???///?<param?name="procName">存儲過程名稱.</param>
127???///?<param?name="prams">存儲過程參數.</param>
128???///?<param?name="dataReader">返回值.</param>
129???public?void?RunProc(string?procName,?SqlParameter[]?prams,?out?SqlDataReader?dataReader)?
130???{
131????cmd?=?CreateCommand(procName,?prams);
132????dataReader?=?cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
133???}
134??
135???public?SqlDataAdapter?GetAdatper(string?procName,SqlParameter[]?prams)
136???{
137????cmd?=?CreateCommand(procName,?prams);
138????myAdapter?=?new?SqlDataAdapter(cmd);??
139????return?myAdapter;
140???}?
141???
142?
143???///?<summary>
144???///?生成存儲過程參數
145???///?</summary>
146???///?<param?name="ParamName">參數名稱.</param>
147???///?<param?name="DbType">參數類型.</param>
148???///?<param?name="Size">參數大小.</param>
149???///?<param?name="Direction">參數方向.</param>
150???///?<param?name="Value">參數值.</param>
151???///?<returns>返回新參數.</returns>
152???public?SqlParameter?MakeParam(string?ParamName,?SqlDbType?DbType,?Int32?Size,?ParameterDirection?Direction,?object?Value)?
153???{
154????SqlParameter?param;
155?
156????if(Size?>?0)
157?????param?=?new?SqlParameter(ParamName,?DbType,?Size);????
158????else
159?????param?=?new?SqlParameter(ParamName,?DbType);
160?
161????param.Direction?=?Direction;
162????if?(!(Direction?==?ParameterDirection.Output?&&?Value?==?null))
163?????param.Value?=?Value;
164?
165????return?param;
166???}
167?
168???
169???///?<summary>
170???///?生成輸入參數
171???///?</summary>
172???///?<param?name="ParamName">參數名稱.</param>
173???///?<param?name="DbType">參數類型.</param>
174???///?<param?name="Size">參數大小.</param>
175???///?<param?name="Value">參數值.</param>
176???///?<returns>返回新參數.</returns>
177???public?SqlParameter?MakeInParam(string?ParamName,?SqlDbType?DbType,?int?Size,?object?Value)?
178???{
179????return?MakeParam(ParamName,?DbType,?Size,?ParameterDirection.Input,?Value);
180???}??
181?
182???///?<summary>
183???///?生成輸出參數.
184???///?</summary>
185???///?<param?name="ParamName">參數名稱.</param>
186???///?<param?name="DbType">參數類型.</param>
187???///?<param?name="Size">參數大小.</param>
188???///?<returns>返回新參數.</returns>
189???public?SqlParameter?MakeOutParam(string?ParamName,?SqlDbType?DbType,?int?Size)?
190???{
191????return?MakeParam(ParamName,?DbType,?Size,?ParameterDirection.Output,?null);
192???}??
193?
194???///?<summary>
195???///?執行單條SQL語句
196???///?</summary>
197???///?<param?name="strSql"></param>
198???///?<returns></returns>
199???public?bool?ExecSql(string?strSql)
200???{
201?????bool?Result?=?false;
202????Open();
203????cmd?=?new?SqlCommand(strSql,conn);
204????try
205????{
206?????cmd.ExecuteNonQuery();
207?????Result?=?true;
208????}
209????catch
210????{
211????}
212????cmd.Dispose();
213????return?Result;
214???}
215?
216???///?<summary>
217???///?執行多條語句
218???///?</summary>
219???///?<param?name="strSql"></param>
220???///?<returns></returns>
221???public?bool?ExecSql(string[]?strSql)
222???{
223????bool?Result?=?false;??
224????if?(strSql?!=?null)?
225????{
226?????Open();
227?????cmd?=?new?SqlCommand();
228?????
229?????SqlTransaction?tr?;
230?????tr?=?conn.BeginTransaction();
231?????cmd.Connection?=?conn;
232?????cmd.Transaction?=?tr;?????
233?????try
234?????{
235??????foreach?(string?Sql?in?strSql)
236??????{
237???????cmd.CommandText?=?Sql;
238???????cmd.ExecuteNonQuery();
239??????}
240??????tr.Commit();
241??????Result?=?true;
242?????}
243?????catch
244?????{
245??????tr.Rollback();
246??????Close();?
247??????throw;
248?????}????
249????}
250????return?Result;
251???}
252?
253???///?<summary>
254???///?得到DateSet記錄集
255???///?</summary>
256???///?<param?name="strSQL"></param>
257???///?<returns></returns>
258???public?DataSet?GetDateSet(string?strSQL)
259???{???
260????Open();???
261????myAdapter?=?new?SqlDataAdapter(strSQL,conn);
262????ds?=?new?DataSet();
263????myAdapter.Fill(ds);?
264????return?ds;
265???}
266?
267???///?<summary>
268???///?綁定DataGrid
269???///?</summary>
270???///?<param?name="strSQL"></param>
271???///?<param?name="mydatagrid"></param>
272???public?void?BindDataGrid(string?strSQL,DataGrid?mydatagrid)
273???{
274????ds?=?GetDateSet(strSQL);
275????mydatagrid.DataSource=ds.Tables[0].DefaultView;
276????mydatagrid.DataBind();???
277???}
278?
279???///?<summary>
280???///?得到DataReader
281???///?</summary>
282???///?<param?name="strSQL"></param>
283???///?<returns></returns>
284???public?SqlDataReader?GetReader(string?strSQL)
285???{???
286????cmd?=?new?SqlCommand(strSQL,conn);
287????return?cmd.ExecuteReader();
288???}
289???///?<summary>
290???///?得到DataReader關閉數據庫連接
291???///?</summary>
292???///?<param?name="strSQL"></param>
293???///?<returns></returns>
294???public?SqlDataReader?GetReaderCloseDb(string?strSQL)
295???{???
296????cmd?=?new?SqlCommand(strSQL,conn);
297????return?cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
298???}
299?
300???///?<summary>
301???///?Get?Scalar
302???///?</summary>
303???///?<param?name="strSQL"></param>
304???///?<returns></returns>
305???public?object?GetScalar(string?strSQL)
306???{
307????cmd?=?new?SqlCommand(strSQL,conn);
308????return?cmd.ExecuteScalar();
309???}
310?
311???
312??}
313?}
314?
315?
316?

轉載于:https://www.cnblogs.com/gaolei/archive/2009/01/01/1366463.html

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