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这篇文章给大家介绍HttpHandler如何进行增删改查 ，内容非常详细，感兴趣的小伙伴们可以参考借鉴，希望对大家能有所帮助。
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如果不是asp.net webform,怎么进行增删改查呢？
首先：
创建一个SqlHelper.cs
public class SqlHelper
{
public static readonly string conString = ConfigurationManager.ConnectionStrings["sqlCon"].ConnectionString;
//增删改
public static bool ExeNonQuery(string sql, CommandType type, params SqlParameter[] lists)
{
bool bFlag = false;
using (SqlConnection con = new SqlConnection(conString))
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = sql;
cmd.CommandType = type;
if (lists!=null)
{
foreach (SqlParameter p in lists)
{
cmd.Parameters.Add(p);
}
}
try
{
if (con.State == ConnectionState.Closed)
{
con.Open();
}
int result = cmd.ExecuteNonQuery();
if (result > 0)
{
bFlag = true;
}
}
catch { ;}
}
return bFlag;
}
//查．读
public static SqlDataReader ExeDataReader(string sql, CommandType type, params SqlParameter[] lists)
{
SqlConnection con = new SqlConnection(conString);
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = sql;
cmd.CommandType = type;
if (con.State == ConnectionState.Closed)
{
con.Open();
}
if (lists!=null)
{
foreach (SqlParameter p in lists)
{
cmd.Parameters.Add(p);
}
}
SqlDataReader reader = cmd.ExecuteReader();
return reader;
}
//返回单个值
public static object GetScalar(string sql, CommandType type, params SqlParameter[] lists)
{
object returnValue = null;
using (SqlConnection con = new SqlConnection(conString))
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = sql;
cmd.CommandType = type;
if (lists!=null)
{
foreach (SqlParameter p in lists)
{
cmd.Parameters.Add(p);
}
}
try
{
if (con.State == ConnectionState.Closed)
{
con.Open();
}
returnValue = cmd.ExecuteScalar();
}
catch { ; }
}
return returnValue;
}
//事务
public static bool ExeNonQueryTran(List list)
{
bool flag = true;
SqlTransaction tran = null;
using (SqlConnection con = new SqlConnection(conString))
{
try
{
if (con.State == ConnectionState.Closed)
{
con.Open();
tran = con.BeginTransaction();
foreach (SqlCommand com in list)
{
com.Connection = con;
com.Transaction = tran;
com.ExecuteNonQuery();
}
tran.Commit();
}
}
catch (Exception ex)
{
Console.Write(ex.Message);
tran.Rollback();
flag = false;
}
}
return flag;
}
//返回DataTable
public static DataTable GetTable(string sql)
{
SqlConnection conn = new SqlConnection(conString);
SqlDataAdapter da = new SqlDataAdapter(sql, conn);
DataTable table = new DataTable();
da.Fill(table);
return table;
}
} 然后再Web.Config里面进行配置
