表单内容提交到数据库案例

配置好Web.config，在configuration里面添加节点connectionStrings：

<configuration>

    <system.web>

        <compilation debug="true" targetFramework="4.0" />

    </system.web>

    <connectionStrings>

      <add name="connstr" connectionString="server=AAA;user id=sa;password=123;database=lesson"/>

    </connectionStrings>

</configuration>

写好MySqlHelper：

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Configuration;

using System.Data.SqlClient;

using System.Data;



namespace MySqlHelper

{

    public class SQLHelper

    {

        private static readonly string connstr = ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;

        /// <summary>

        /// 连接数据库

        /// </summary>

        /// <returns></returns>

        public static SqlConnection CreateConnection()

        {

            SqlConnection conn = new SqlConnection(connstr);

            conn.Open();

            return conn;

        }

        /// <summary>

        /// 返回受影响行数

        /// </summary>

        /// <param name="conn"></param>

        /// <param name="sql"></param>

        /// <param name="parameters"></param>

        /// <returns></returns>

        public static int ExecuteNonQuery(SqlConnection conn, string sql, params SqlParameter[] parameters)

        {

            using (SqlCommand cmd = conn.CreateCommand())

            {

                cmd.CommandText = sql;

                cmd.Parameters.AddRange(parameters);

                return cmd.ExecuteNonQuery();

            }

        }

        /// <summary>

        /// 按现有连接，返回受影响行数

        /// </summary>

        /// <param name="sql"></param>

        /// <param name="parameters"></param>

        /// <returns></returns>

        public static int ExecuteNonQuery(string sql, params SqlParameter[] parameters)

        {

            using (SqlConnection conn = CreateConnection())

            {

                return ExecuteNonQuery(conn,sql,parameters);

            }

        }

        /// <summary>

        /// 返回第一行第一条数据

        /// </summary>

        /// <param name="conn"></param>

        /// <param name="sql"></param>

        /// <param name="parameters"></param>

        /// <returns></returns>

        public static object ExecuteScalar(SqlConnection conn, string sql, params SqlParameter[] parameters)

        {

            using (SqlCommand cmd = conn.CreateCommand())

            {

                cmd.CommandText = sql;

                cmd.Parameters.AddRange(parameters);

                return cmd.ExecuteScalar();

            }

        }

        /// <summary>

        /// 按现有连接，返回第一行第一条数据

        /// </summary>

        /// <param name="sql"></param>

        /// <param name="parameters"></param>

        /// <returns></returns>

        public static object ExecuteScalar(string sql, params SqlParameter[] parameters)

        {

            using (SqlConnection conn = CreateConnection())

            {

                return ExecuteScalar(conn,sql,parameters);

            }

        }

        /// <summary>

        /// 返回多条数据

        /// </summary>

        /// <param name="conn"></param>

        /// <param name="sql"></param>

        /// <param name="parameters"></param>

        /// <returns></returns>

        public static DataTable ExecuteReader(SqlConnection conn, string sql, params SqlParameter[] parameters)

        {

            DataTable table = new DataTable();

            using (SqlCommand cmd = conn.CreateCommand())

            {

                cmd.CommandText = sql;

                cmd.Parameters.AddRange(parameters);

                using (SqlDataReader reader = cmd.ExecuteReader())

                {

                    table.Load(reader);

                }

            }

            return table;

        }

        /// <summary>

        /// 按现有连接，返回多条数据

        /// </summary>

        /// <param name="sql"></param>

        /// <param name="parameters"></param>

        /// <returns></returns>

        public static DataTable ExecuteReader(string sql, params SqlParameter[] parameters)

        {

            using (SqlConnection conn = CreateConnection())

            {

                return ExecuteReader(conn,sql,parameters);

            }

        }



    }

}

 

html代码：

<form action="Text1.ashx" method="get">

    姓名：<input type="text" name="username" value="" />

    </p>

    年龄：<input type="text" name="age" value="" />

    </p>

    <input type="checkbox" name="ch1" value="true" />是否富二代

    </p>

    专业：<select name="se1">

        <option value="计算机">计算机</option>

        <option value="管理学">管理学</option>

        <option value="化学">化学</option>

        <option value="机械">机械</option>

    </select>

    </p>

    性取向：<input type="radio" name="ra1" value="喜欢男" />喜欢男

            <input type="radio" name="ra1" value="喜欢女的" />喜欢女的

            <input type="radio" name="ra1" value="通吃" />通吃

    </p>

    <input type="submit" name="btn" value="保存" />

</form>

一般处理程序代码：

context.Response.ContentType = "text/html";

string username = context.Request["username"];

int age = Convert.ToInt32(context.Request["age"]);

bool gener = Convert.ToBoolean(context.Request["ch1"]);

string prof = context.Request["se1"];

string sex = context.Request["ra1"];

int r = SQLHelper.ExecuteNonQuery("insert into Users(username,age,gener,prof,sex) values(@username,@age,@gener,@prof,@sex)",

    new SqlParameter("@username",username),

    new SqlParameter("@age", age),

    new SqlParameter("@gener", gener),

    new SqlParameter("@prof", prof),

    new SqlParameter("@sex", sex));

if (r > 0)

{

    context.Response.Write("插入成功");

}

else

{

    context.Response.Write("插入失败");

}