1 using MySql.Data.MySqlClient;
2 using System;
3 using System.Collections;
4 using System.Collections.Generic;
5 using System.Configuration;
6 using System.Data.SqlClient;
7 using System.Data;
8 using System.Linq;
9 using System.Text;
10 using System.Threading.Tasks;
11 using Dapper;
12 using DapperExtensions;
13
14 namespace DapperData
15 {
16 public class MySQLDapperHelper<T> where T:class
17 {
18 /// <summary>
19 /// 數據庫連接字符串
20 /// </summary>
21 private static readonly string connectionString =
22 ConfigurationManager.ConnectionStrings["MySqlConn"].ConnectionString;
23
24 /// <summary>
25 /// 查詢列表
26 /// </summary>
27 /// <param name="sql">查詢的sql</param>
28 /// <param name="param">替換參數</param>
29 /// <returns></returns>
30 public static List<T> Query(string sql, object param)
31 {
32 using (IDbConnection con = new MySqlConnection(connectionString))
33 {
34 return con.Query<T>(sql, param).ToList();
35 }
36 }
37
38 /// <summary>
39 /// 查詢第一個數據
40 /// </summary>
41 /// <param name="sql"></param>
42 /// <param name="param"></param>
43 /// <returns></returns>
44 public static T QueryFirst(string sql, object param)
45 {
46 using (IDbConnection con = new MySqlConnection(connectionString))
47 {
48 return con.QueryFirst<T>(sql, param);
49 }
50 }
51
52 /// <summary>
53 /// 查詢第一個數據沒有返回默認值
54 /// </summary>
55 /// <param name="sql"></param>
56 /// <param name="param"></param>
57 /// <returns></returns>
58 public static T QueryFirstOrDefault(string sql, object param)
59 {
60 using (IDbConnection con = new MySqlConnection(connectionString))
61 {
62 return con.QueryFirstOrDefault<T>(sql, param);
63 }
64 }
65
66 /// <summary>
67 /// 查詢單條數據
68 /// </summary>
69 /// <param name="sql"></param>
70 /// <param name="param"></param>
71 /// <returns></returns>
72 public static T QuerySingle(string sql, object param)
73 {
74 using (IDbConnection con = new MySqlConnection(connectionString))
75 {
76 return con.QuerySingle<T>(sql, param);
77 }
78 }
79
80 /// <summary>
81 /// 查詢單條數據沒有返回默認值
82 /// </summary>
83 /// <param name="sql"></param>
84 /// <param name="param"></param>
85 /// <returns></returns>
86 public static T QuerySingleOrDefault(string sql, object param)
87 {
88 using (IDbConnection con = new MySqlConnection(connectionString))
89 {
90 return con.QuerySingleOrDefault<T>(sql, param);
91 }
92 }
93
94 /// <summary>
95 /// 增刪改
96 /// </summary>
97 /// <param name="sql"></param>
98 /// <param name="param"></param>
99 /// <returns></returns>
100 public static int Execute(string sql, object param)
101 {
102 using (IDbConnection con = new MySqlConnection(connectionString))
103 {
104 return con.Execute(sql, param);
105 }
106 }
107
108 /// <summary>
109 /// Reader獲取數據
110 /// </summary>
111 /// <param name="sql"></param>
112 /// <param name="param"></param>
113 /// <returns></returns>
114 public static IDataReader ExecuteReader(string sql, object param)
115 {
116 using (IDbConnection con = new MySqlConnection(connectionString))
117 {
118 return con.ExecuteReader(sql, param);
119 }
120 }
121
122 /// <summary>
123 /// Scalar獲取數據
124 /// </summary>
125 /// <param name="sql"></param>
126 /// <param name="param"></param>
127 /// <returns></returns>
128 public static object ExecuteScalar(string sql, object param)
129 {
130 using (IDbConnection con = new MySqlConnection(connectionString))
131 {
132 return con.ExecuteScalar(sql, param);
133 }
134 }
135
136 /// <summary>
137 /// Scalar獲取數據
138 /// </summary>
139 /// <param name="sql"></param>
140 /// <param name="param"></param>
141 /// <returns></returns>
142 public static T ExecuteScalarForT(string sql, object param)
143 {
144 using (IDbConnection con = new MySqlConnection(connectionString))
145 {
146 return con.ExecuteScalar<T>(sql, param);
147 }
148 }
149
150 /// <summary>
151 /// 帶參數的存儲過程
152 /// </summary>
153 /// <param name="sql"></param>
154 /// <param name="param"></param>
155 /// <returns></returns>
156 public static List<T> ExecutePro(string proc, object param)
157 {
158 using (IDbConnection con = new MySqlConnection(connectionString))
159 {
160 List<T> list = con.Query<T>(proc,
161 param,
162 null,
163 true,
164 null,
165 CommandType.StoredProcedure).ToList();
166 return list;
167 }
168 }
169
170
171 /// <summary>
172 /// 事務1 - 全SQL
173 /// </summary>
174 /// <param name="sqlarr">多條SQL</param>
175 /// <param name="param">param</param>
176 /// <returns></returns>
177 public static int ExecuteTransaction(string[] sqlarr)
178 {
179 using (IDbConnection con = new MySqlConnection(connectionString))
180 {
181 using (var transaction = con.BeginTransaction())
182 {
183 try
184 {
185 int result = 0;
186 foreach (var sql in sqlarr)
187 {
188 result += con.Execute(sql, null, transaction);
189 }
190
191 transaction.Commit();
192 return result;
193 }
194 catch (Exception ex)
195 {
196 transaction.Rollback();
197 return 0;
198 }
199 }
200 }
201 }
202
203 /// <summary>
204 /// 事務2 - 聲明參數
205 ///demo:
206 ///dic.Add("Insert into Users values (@UserName, @Email, @Address)",
207 /// new { UserName = "jack", Email = "[email protected]", Address = "上海" });
208 /// </summary>
209 /// <param name="Key">多條SQL</param>
210 /// <param name="Value">param</param>
211 /// <returns></returns>
212 public static int ExecuteTransaction(Dictionary<string, object> dic)
213 {
214 using (IDbConnection con = new MySqlConnection(connectionString))
215 {
216 using (var transaction = con.BeginTransaction())
217 {
218 try
219 {
220 int result = 0;
221 foreach (var sql in dic)
222 {
223 result += con.Execute(sql.Key, sql.Value, transaction);
224 }
225
226 transaction.Commit();
227 return result;
228 }
229 catch (Exception ex)
230 {
231 transaction.Rollback();
232 return 0;
233 }
234 }
235 }
236 }
237 }
238
239 }
