85 lines
2.4 KiB
C#
85 lines
2.4 KiB
C#
|
using MySql.Data.MySqlClient;
|
|||
|
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.Configuration;
|
|||
|
|
using System.Data;
|
|||
|
|
using System.Linq;
|
|||
|
|
using System.Text;
|
|||
|
|
using System.Threading.Tasks;
|
|||
|
|
|
|||
|
|
namespace 云心电ECG数据解析服务端
|
|||
|
|
{
|
|||
|
|
internal class MySQLHelper
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
//连接数据库
|
|||
|
|
static string connectionStrings = ConfigurationManager.ConnectionStrings["MYSQLConnectionString"].ConnectionString;//连接语句，请按照自己的连接修改
|
|||
|
|
static MySqlConnection conn = new MySqlConnection(connectionStrings);
|
|||
|
|
|
|||
|
|
private static void InitConn()
|
|||
|
|
{
|
|||
|
|
if (conn.State == ConnectionState.Closed)
|
|||
|
|
{
|
|||
|
|
conn.Open();
|
|||
|
|
}
|
|||
|
|
else if (conn.State == ConnectionState.Broken)
|
|||
|
|
{
|
|||
|
|
conn.Close();
|
|||
|
|
conn.Open();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//增删改
|
|||
|
|
public static bool ExecuteNonQuery(string sqlStr)
|
|||
|
|
{
|
|||
|
|
InitConn();
|
|||
|
|
MySqlCommand cmd = new MySqlCommand(sqlStr, conn);
|
|||
|
|
int result = cmd.ExecuteNonQuery();
|
|||
|
|
conn.Close();
|
|||
|
|
return result > 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//执行集合函数
|
|||
|
|
public static object ExecuteScalar(string sqlStr)
|
|||
|
|
{
|
|||
|
|
InitConn();
|
|||
|
|
MySqlCommand cmd = new MySqlCommand(sqlStr, conn);
|
|||
|
|
object result = cmd.ExecuteScalar();
|
|||
|
|
conn.Close();
|
|||
|
|
return result;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//查询，获取DataTable
|
|||
|
|
public static DataTable GetTable(string sqlStr)
|
|||
|
|
{
|
|||
|
|
InitConn();
|
|||
|
|
MySqlCommand cmd = new MySqlCommand(sqlStr);
|
|||
|
|
cmd.Connection = conn;
|
|||
|
|
MySqlDataAdapter da = new MySqlDataAdapter(cmd);
|
|||
|
|
DataTable dt = new DataTable();
|
|||
|
|
da.Fill(dt);
|
|||
|
|
conn.Close();
|
|||
|
|
return dt;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//二进制数据增删改
|
|||
|
|
public static bool Binary(string sqlStr, Dictionary<string, byte[]> parameters)
|
|||
|
|
{
|
|||
|
|
InitConn();
|
|||
|
|
MySqlCommand cmd = new MySqlCommand(sqlStr, conn);
|
|||
|
|
int i = 0;
|
|||
|
|
foreach (KeyValuePair<string, byte[]> kvp in parameters)
|
|||
|
|
{
|
|||
|
|
cmd.Parameters.Add("@" + kvp.Key, MySqlDbType.LongBlob);
|
|||
|
|
cmd.Parameters[i].Value = kvp.Value;
|
|||
|
|
i++;
|
|||
|
|
}
|
|||
|
|
int result = cmd.ExecuteNonQuery();
|
|||
|
|
conn.Close();
|
|||
|
|
return result > 0;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
}
|