MySQL数据库工具类之——DataTable批量加入MySQL数据库(Net版)
2016-03-16 17:03
531 查看
using MySql.Data.MySqlClient;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Text;
public class MySqlDbHelper
{
#region 私有变量
private const string defaultConfigKeyName = "MySqlConnection";//连接字符串 Database='数据库';Data Source='IP地址';User Id='sa';Password='sa';pooling=true
private string connectionString;
private string providerName;
#endregion
#region 构造函数
/// <summary>
/// 默认构造函数(DbHelper)
/// </summary>
public MySqlDbHelper()
{
this.connectionString = ConfigurationManager.ConnectionStrings[defaultConfigKeyName].ConnectionString;
this.providerName = ConfigurationManager.ConnectionStrings[defaultConfigKeyName].ProviderName;
}
/// <summary>
/// DbHelper构造函数
/// </summary>
/// <param name="keyName">连接字符串名</param>
public MySqlDbHelper(string keyName)
{
this.connectionString = ConfigurationManager.ConnectionStrings[keyName].ConnectionString;
this.providerName = ConfigurationManager.ConnectionStrings[keyName].ProviderName;
}
#endregion
public int ExecuteNonQuery(string sql, params MySqlParameter[] parameters)
{
int res = 0;
using (MySqlConnection con = new MySqlConnection(connectionString))
{
con.Open();
using (MySqlCommand cmd = new MySqlCommand(sql, con))
{
foreach (MySqlParameter parameter in parameters)
{
cmd.Parameters.Add(parameter);
}
try
{
res = cmd.ExecuteNonQuery();
}
catch
{
res = -1;
}
}
}
return res;
}
public object GetExeScalar(string sql, params MySqlParameter[] parameters)
{
object res = null;
using (MySqlConnection con = new MySqlConnection(connectionString))
{
con.Open();
using (MySqlCommand cmd = new MySqlCommand(sql, con))
{
foreach (MySqlParameter parameter in parameters)
{
cmd.Parameters.Add(parameter);
}
res = cmd.ExecuteScalar();
}
}
return res;
}
public DataTable GetDataTable(string sql, params MySqlParameter[] parameters)
{
DataSet dataset = new DataSet();
using (MySqlConnection con = new MySqlConnection(connectionString))
{
con.Open();
using (MySqlCommand cmd = new MySqlCommand(sql, con))
{
foreach (MySqlParameter parameter in parameters)
{
cmd.Parameters.Add(parameter);
}
MySqlDataAdapter adapter = new MySqlDataAdapter(cmd);
adapter.Fill(dataset);
}
}
return dataset.Tables[0];
}
/// <summary>
/// DataTable批量加入MYSQL数据库
/// </summary>
/// <param name="dataTable"></param>
/// <returns></returns>
public string InsertByDataTable(DataTable dataTable)
{
string result = string.Empty;
if (null == dataTable || dataTable.Rows.Count <= 0)
{
return "添加失败!DataTable暂无数据!";
}
if (string.IsNullOrEmpty(dataTable.TableName))
{
return "添加失败!请先设置DataTable的名称!";
}
// 构建INSERT语句
StringBuilder sb = new StringBuilder();
sb.Append("INSERT INTO " + dataTable.TableName + "(");
for (int i = 0; i < dataTable.Columns.Count; i++)
{
sb.Append(dataTable.Columns[i].ColumnName + ",");
}
sb.Remove(sb.ToString().LastIndexOf(','), 1);
sb.Append(") VALUES ");
for (int i = 0; i < dataTable.Rows.Count; i++)
{
sb.Append("(");
for (int j = 0; j < dataTable.Columns.Count; j++)
{
sb.Append("'" + dataTable.Rows[i][j] + "',");
}
sb.Remove(sb.ToString().LastIndexOf(','), 1);
sb.Append("),");
}
sb.Remove(sb.ToString().LastIndexOf(','), 1);
sb.Append(";");
int res = -1;
using (MySqlConnection con = new MySqlConnection(connectionString))
{
con.Open();
using (MySqlCommand cmd = new MySqlCommand(sb.ToString(), con))
{
try
{
res = cmd.ExecuteNonQuery();
}
catch (Exception ex)
{
res = -1;
// Unknown column 'names' in 'field list'
result = "操作失败!" + ex.Message.Replace("Unknown column", "未知列").Replace("in 'field list'","存在字段集合中!");
}
}
}
if (res > 0)
{
result = "恭喜添加成功!";
}
return result;
}
}
转载自:http://www.cnblogs.com/stone_w/p/4428723.html
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Text;
public class MySqlDbHelper
{
#region 私有变量
private const string defaultConfigKeyName = "MySqlConnection";//连接字符串 Database='数据库';Data Source='IP地址';User Id='sa';Password='sa';pooling=true
private string connectionString;
private string providerName;
#endregion
#region 构造函数
/// <summary>
/// 默认构造函数(DbHelper)
/// </summary>
public MySqlDbHelper()
{
this.connectionString = ConfigurationManager.ConnectionStrings[defaultConfigKeyName].ConnectionString;
this.providerName = ConfigurationManager.ConnectionStrings[defaultConfigKeyName].ProviderName;
}
/// <summary>
/// DbHelper构造函数
/// </summary>
/// <param name="keyName">连接字符串名</param>
public MySqlDbHelper(string keyName)
{
this.connectionString = ConfigurationManager.ConnectionStrings[keyName].ConnectionString;
this.providerName = ConfigurationManager.ConnectionStrings[keyName].ProviderName;
}
#endregion
public int ExecuteNonQuery(string sql, params MySqlParameter[] parameters)
{
int res = 0;
using (MySqlConnection con = new MySqlConnection(connectionString))
{
con.Open();
using (MySqlCommand cmd = new MySqlCommand(sql, con))
{
foreach (MySqlParameter parameter in parameters)
{
cmd.Parameters.Add(parameter);
}
try
{
res = cmd.ExecuteNonQuery();
}
catch
{
res = -1;
}
}
}
return res;
}
public object GetExeScalar(string sql, params MySqlParameter[] parameters)
{
object res = null;
using (MySqlConnection con = new MySqlConnection(connectionString))
{
con.Open();
using (MySqlCommand cmd = new MySqlCommand(sql, con))
{
foreach (MySqlParameter parameter in parameters)
{
cmd.Parameters.Add(parameter);
}
res = cmd.ExecuteScalar();
}
}
return res;
}
public DataTable GetDataTable(string sql, params MySqlParameter[] parameters)
{
DataSet dataset = new DataSet();
using (MySqlConnection con = new MySqlConnection(connectionString))
{
con.Open();
using (MySqlCommand cmd = new MySqlCommand(sql, con))
{
foreach (MySqlParameter parameter in parameters)
{
cmd.Parameters.Add(parameter);
}
MySqlDataAdapter adapter = new MySqlDataAdapter(cmd);
adapter.Fill(dataset);
}
}
return dataset.Tables[0];
}
/// <summary>
/// DataTable批量加入MYSQL数据库
/// </summary>
/// <param name="dataTable"></param>
/// <returns></returns>
public string InsertByDataTable(DataTable dataTable)
{
string result = string.Empty;
if (null == dataTable || dataTable.Rows.Count <= 0)
{
return "添加失败!DataTable暂无数据!";
}
if (string.IsNullOrEmpty(dataTable.TableName))
{
return "添加失败!请先设置DataTable的名称!";
}
// 构建INSERT语句
StringBuilder sb = new StringBuilder();
sb.Append("INSERT INTO " + dataTable.TableName + "(");
for (int i = 0; i < dataTable.Columns.Count; i++)
{
sb.Append(dataTable.Columns[i].ColumnName + ",");
}
sb.Remove(sb.ToString().LastIndexOf(','), 1);
sb.Append(") VALUES ");
for (int i = 0; i < dataTable.Rows.Count; i++)
{
sb.Append("(");
for (int j = 0; j < dataTable.Columns.Count; j++)
{
sb.Append("'" + dataTable.Rows[i][j] + "',");
}
sb.Remove(sb.ToString().LastIndexOf(','), 1);
sb.Append("),");
}
sb.Remove(sb.ToString().LastIndexOf(','), 1);
sb.Append(";");
int res = -1;
using (MySqlConnection con = new MySqlConnection(connectionString))
{
con.Open();
using (MySqlCommand cmd = new MySqlCommand(sb.ToString(), con))
{
try
{
res = cmd.ExecuteNonQuery();
}
catch (Exception ex)
{
res = -1;
// Unknown column 'names' in 'field list'
result = "操作失败!" + ex.Message.Replace("Unknown column", "未知列").Replace("in 'field list'","存在字段集合中!");
}
}
}
if (res > 0)
{
result = "恭喜添加成功!";
}
return result;
}
}
转载自:http://www.cnblogs.com/stone_w/p/4428723.html
相关文章推荐
- MySQL基于ROW格式的数据恢复
- mysql忘记root密码拯救方法(flush privileges) 及flush 命令
- MySQL安装初始化账户密码
- Mysql优化
- 一句sql搞定Mysql删除数据后自增列从1开始
- zabbix mysql调优
- MySQL行级锁
- Windows7下mysql安装后服务无法启动和启动后无法登录的问题解决的方法
- MySql知识点总结
- mysql salve从库设置read only 属性
- mysql数据库允许远程访问方法
- windows安装 mysql
- mysql 时间加法源码理解
- mysql 大对象
- MySQL的length类函数
- windows下安装mysql5.6及基本命令
- 【转】关于Class.forName(“com.mysql.jdbc.Driver”)
- mysql 忘记密码后如何修改密码
- 【转】关于Class.forName(“com.mysql.jdbc.Driver”)
- liunx下Mysql双机热备安装详解----谷营中西软件科技园