DAL/Wx_UserService.cs

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using System;
using System.Text;
using System.Data.SqlClient;
using System.Data;

namespace DAL
{
    /// <summary>
    /// 数据访问类:Wx_User
    /// </summary>
    public partial class Wx_UserService
    {
        public Wx_UserService()
        { }
        #region  BasicMethod
        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public static bool Exists(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from Wx_User");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
			};
            parameters[0].Value = id;

            return DBHelperSQL.Exists(strSql.ToString(), parameters);
        }
        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public static bool Exists(string openid)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from Wx_User");
            strSql.Append(" where openid=@openid");
            SqlParameter[] parameters = {
					new SqlParameter("@openid", SqlDbType.VarChar,100)
			};
            parameters[0].Value = openid;

            return DBHelperSQL.Exists(strSql.ToString(), parameters);
        }

        /// <summary>
        /// 增加一条数据
        /// </summary>
        public static int Add(Model.Wx_User model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into Wx_User(");
            strSql.Append("openid)");
            strSql.Append(" values (");
            strSql.Append("@openid)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@openid", SqlDbType.VarChar,100)};
            parameters[0].Value = model.openid;