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  • 调用分页存储过程

    //调用
            public DataSet Query(string procName, ref int Total, SqlParameter[] sqlParameters)
            {
                DataSet dataSet = new DataSet();
                using (SqlConnection connection = new SqlConnection(con))
                {
                    //打开数据库
                    connection.Open();
                    //封装执行的sql语句
                    using (SqlCommand command = new SqlCommand(procName, connection))
                    {
                        //将存储过程的输入参数放到comand中
                        command.Parameters.AddRange(sqlParameters);
                        //指定执行的是存储过程
                        command.CommandType = CommandType.StoredProcedure;
                        //使用适配器关联command
                        SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(command);
                        //适配器填充数据
                        sqlDataAdapter.Fill(dataSet);
                        //获取输出参数
                        Total = int.Parse(command.Parameters["@Total"].Value.ToString());
                    }
                }
                return dataSet;
            }
    复制代码
    ///API调用
    
    using System.Collections.Generic;
    using System.Linq;
    using System.Web.Http;
    using System.Net.Http;
    using IOT.BLL;
    using IOT.Model;
    using Newtonsoft.Json;
    using System.Data;
    
    namespace LianXi.Api.Controllers
    {
        public class ShowController : ApiController
        {
            Iot_bll bll = new Iot_bll();
            //显示
            [HttpGet]
            public IHttpActionResult GetShow(string name="",int pageSize, int PageNumber)
            {
                //显示
                DataTable tb = bll.GetShow();
                string json = JsonConvert.SerializeObject(tb);
                List<Base_User> list = JsonConvert.DeserializeObject<List<Base_User>>(json);
    
                var list1 = (from s in list select s).ToList();
                //查询
                if(!string.IsNullOrEmpty(name))
                {
                    list1 = list1.Where(s => s.Account.Contains(name)).ToList();
                }
                //分页
                int Total = 0;
                DataTable tb1 = bll.GetPagingDept(ref Total, pageSize, PageNumber, " 1=1 ", " * ");
    
                PagingModels<DataTable> paging = new PagingModels<DataTable> { tb = tb, Total = Total };
    
                return Json<List<Base_User>>(list1);
            }
            //添加
            [HttpPost]
            public int GetAdd(Base_User m)
            {
                int flag = bll.GetAdd(m);
                return flag;
            }
        }
    }
    /////BLL层调用
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using IOT.DAL;
    using IOT.Model;
    using Newtonsoft.Json;
    using System.Data;
    using System.Data.SqlClient;
    
    namespace IOT.BLL
    {
        public class Iot_bll
        {
            DBHelp dbhelp = new DBHelp();
    
            //显示
            public DataTable GetShow()
            {
                string sql = "select * from Base_User";
               return dbhelp.ExecTable(sql);
    
            }
    
            //添加
            public int GetAdd(Base_User m)
            {
                string sql = $"insert into Base_User values('{m.Account}', '{m.PassWord1}', '{m.PhoneNum}', '{m.CardID}',{m.VIPLive},{m.Coin},'{m.CreateTime}','{m.UpdateTime}')";
                return dbhelp.ExecNonQuery(sql);
            }
            public DataTable GetPagingDept(ref int Total, int pageSize, int pageNumber, string where, string field)
            {
                SqlParameter[] sqlParameters = new SqlParameter[]
                {
    new SqlParameter {ParameterName= "@table", Value= " Shopping ",SqlDbType= SqlDbType.NVarChar,Direction= ParameterDirection.Input, Size=200},
    new SqlParameter {ParameterName= "@field", Value= field,SqlDbType= SqlDbType.NVarChar,Direction= ParameterDirection.Input, Size=2000 },
    new SqlParameter {ParameterName= "@where", Value= where ,SqlDbType= SqlDbType.NVarChar,Direction= ParameterDirection.Input, Size=2000},
    new SqlParameter {ParameterName= "@order", Value= " Id " ,SqlDbType= SqlDbType.NVarChar,Direction= ParameterDirection.Input, Size=200},
    new SqlParameter {ParameterName= "@pageSize", Value=pageSize ,SqlDbType= SqlDbType.Int,Direction= ParameterDirection.Input},
    new SqlParameter {ParameterName= "@pageNumber", Value=pageNumber ,SqlDbType= SqlDbType.Int,Direction= ParameterDirection.Input},
    new SqlParameter {ParameterName= "@Total" ,SqlDbType= SqlDbType.Int,Direction= ParameterDirection.Output}
                };
                return db.Query("[SP_User]", ref Total, sqlParameters).Tables[0];
            }
        }
    }
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  • 原文地址:https://www.cnblogs.com/wasdkoo/p/13083880.html
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