主要包含了事务进来，是个亮点：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Net.Mail;
using System.Net;
namespace MIAS_DigitalTool_Platform.SqlhelperClass
{
public static class sqlHelper
{
public static readonly string connectionString = StaticClass.global.connectionCurrent;
// 数据库连接字符串，根据实际情况进行修改
//public static readonly string connectionString = "Data Source=192.168.70.8;Initial Catalog=数据库名;Integrated Security=True";
// 执行查询并返回DataTable
public static DataTable ExecuteDataTable(string sql, CommandType commandType, params SqlParameter[] parameters)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand command = new SqlCommand(sql, connection);
command.CommandType = commandType;
if (parameters != null)
{
foreach (SqlParameter parameter in parameters)
{
command.Parameters.Add(parameter);
}
}
try
{
connection.Open();
SqlDataAdapter adapter = new SqlDataAdapter(command);
DataTable dataTable = new DataTable();
adapter.Fill(dataTable);
return dataTable;
}
catch (Exception ex)
{
Serilog.Log.Information(ex.Message);
throw new Exception("ExecuteDataTable Error: " + ex.Message);
}
}
}
// 执行非查询操作，返回受影响的行数
public static int ExecuteNonQuery(string sql, CommandType commandType, params SqlParameter[] parameters)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand command = new SqlCommand(sql, connection);
command.CommandType = commandType;
if (parameters != null)
{
foreach (SqlParameter parameter in parameters)
{
command.Parameters.Add(parameter);
}
}
try
{
connection.Open();
return command.ExecuteNonQuery();
}
catch (Exception ex)
{
Serilog.Log.Information(ex.Message);
throw new Exception("ExecuteNonQuery Error: " + ex.Message);
}
}
}
// 执行查询并返回单个值
public static object ExecuteScalar(string sql, CommandType commandType, params SqlParameter[] parameters)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand command = new SqlCommand(sql, connection);
command.CommandType = commandType;
if (parameters != null)
{
foreach (SqlParameter parameter in parameters)
{
command.Parameters.Add(parameter);
}
}
try
{
connection.Open();
return command.ExecuteScalar();
}
catch (Exception ex)
{
Serilog.Log.Information(ex.Message);
throw new Exception("ExecuteScalar Error: " + ex.Message);
}
}
}
// 执行事务性操作的方法，支持参数化查询
public static void ExecuteTransaction(string[] sqlQueries, SqlParameter[][] parameters, CommandType commandType)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
using (SqlTransaction transaction = connection.BeginTransaction())
{
try
{
foreach (string sqlQuery in sqlQueries)
{
// 为每个查询创建SqlCommand对象，并添加参数
SqlCommand command = new SqlCommand(sqlQuery, connection, transaction);
command.CommandType = commandType; // 可以是CommandType.Text或CommandType.StoredProcedure
// 如果有参数，添加到SqlCommand对象
if (parameters != null && parameters.Length > 0)
{
foreach (SqlParameter parameter in parameters[0]) // 假设每个查询对应一组参数
{
command.Parameters.Add(parameter);
}
}
// 执行命令
command.ExecuteNonQuery();
}
transaction.Commit();
}
catch (Exception ex)
{
Serilog.Log.Information(ex.Message);
transaction.Rollback();
throw new Exception("Transaction Error: " + ex.Message);
}
}
}
}
public static void SMTP(string from,string fromAlias, string[] to, string subject, string body, string ipaddr, int port, string creditAccount, string password)
{
try
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
// 创建电子邮件消息对象
MailMessage message = new MailMessage
{
From = new MailAddress(from, fromAlias)
};
foreach (string recipient in to)
{
message.To.Add(new MailAddress(recipient));
}
// 设置邮件主题和正文
message.Subject = subject;
message.Body = body;
message.BodyEncoding = Encoding.UTF8;
// 创建SMTP客户端
SmtpClient client = new SmtpClient(ipaddr, port); // SMTP服务器地址和端口
client.EnableSsl = false; // 如果服务器支持SSL
如果SMTP服务器需要身份验证
client.Credentials = new NetworkCredential(creditAccount, password);
// 发送邮件
client.Send(message);
Serilog.Log.Warning("邮件发送成功!");
}
catch (Exception ex)
{
Serilog.Log.Error(ex.Message);
}
}
}
}