asp.net中如何调用sql存储过程实现分页

数据运维 2023-04-19 LOVEHL^ˇ^ 手机阅读

首先看下面的代码创建存储过程 1、创建存储过程，语句如下： CREATE PROC P_viewPage @TableName VARCHAR(200), --表名 @FieldList VARCHAR(2000), --显示列名，如果是全部字段则为* @PrimaryKey VARCHAR(100), -

                        <p>首先看下面的代码创建存储过程</p>

1、创建存储过程，语句如下：

CREATE PROC P_viewPage @TableName VARCHAR(200), --表名 @FieldList VARCHAR(2000), --显示列名，如果是全部字段则为* @PrimaryKey VARCHAR(100), --单一主键或唯一值键 @Where VARCHAR(2000), --查询条件不含'where'字符，如id>10 and len(userid)>9 @Order VARCHAR(1000), --排序不含'order by'字符，如id asc,userid desc，必须指定asc或desc
--注意当@SortType=3时生效，记住一定要在最后加上主键，否则会让你比较郁闷 @SortType INT, --排序规则 1:正序asc 2:倒序desc 3:多列排序方法 @RecorderCount INT, --记录总数 0:会返回总记录 @PageSize INT, --每页输出的记录数 @PageIndex INT, --当前页数 @TotalCount INT OUTPUT, --记返回总记录 @TotalPageCount INT OUTPUT --返回总页数 AS SET NOCOUNT ON

IF ISNULL(@TotalCount,'') = '' SET @TotalCount = 0 SET @Order = RTRIM(LTRIM(@Order)) SET @PrimaryKey = RTRIM(LTRIM(@PrimaryKey)) SET @FieldList = REPLACE(RTRIM(LTRIM(@FieldList)),' ','')

WHILE CHARINDEX(', ',@Order) > 0 OR CHARINDEX(' ,',@Order) > 0 BEGIN SET @Order = REPLACE(@Order,', ',',') SET @Order = REPLACE(@Order,' ,',',') END

IF ISNULL(@TableName,'') = '' OR ISNULL(@FieldList,'') = '' OR ISNULL(@PrimaryKey,'') = '' OR @SortType < 1 OR @SortType >3 OR @RecorderCount < 0 OR @PageSize < 0 OR @PageIndex < 0 BEGIN PRINT('ERR_00')
RETURN END

IF @SortType = 3 BEGIN IF (UPPER(RIGHT(@Order,4))!=' ASC' AND UPPER(RIGHT(@Order,5))!=' DESC') BEGIN PRINT('ERR_02') RETURN END END

DECLARE @new_where1 VARCHAR(1000) DECLARE @new_where2 VARCHAR(1000) DECLARE @new_order1 VARCHAR(1000)
DECLARE @new_order2 VARCHAR(1000) DECLARE @new_order3 VARCHAR(1000) DECLARE @Sql VARCHAR(8000) DECLARE @SqlCount NVARCHAR(4000)

IF ISNULL(@where,'') = '' BEGIN SET @new_where1 = ' ' SET @new_where2 = ' WHERE ' END ELSE BEGIN SET @new_where1 = ' WHERE ' + @where SET @new_where2 = ' WHERE ' + @where + ' AND ' END

IF ISNULL(@order,'') = '' OR @SortType = 1 OR @SortType = 2 BEGIN IF @SortType = 1 BEGIN SET @new_order1 = ' ORDER BY ' + @PrimaryKey + ' ASC' SET @new_order2 = ' ORDER BY ' + @PrimaryKey + ' DESC' END IF @SortType = 2 BEGIN SET @new_order1 = ' ORDER BY ' + @PrimaryKey + ' DESC' SET @new_order2 = ' ORDER BY ' + @PrimaryKey + ' ASC' END END ELSE BEGIN SET @new_order1 = ' ORDER BY ' + @Order END

IF @SortType = 3 AND CHARINDEX(','+@PrimaryKey+' ',','+@Order)>0 BEGIN SET @new_order1 = ' ORDER BY ' + @Order SET @new_order2 = @Order + ','
SET @new_order2 = REPLACE(REPLACE(@new_order2,'ASC,','{ASC},'),'DESC,','{DESC},')
SET @new_order2 = REPLACE(REPLACE(@new_order2,'{ASC},','DESC,'),'{DESC},','ASC,') SET @new_order2 = ' ORDER BY ' + SUBSTRING(@new_order2,1,LEN(@new_order2)-1)
IF @FieldList <> '*' BEGIN
SET @new_order3 = REPLACE(REPLACE(@Order + ',','ASC,',','),'DESC,',',')
SET @FieldList = ',' + @FieldList
WHILE CHARINDEX(',',@new_order3)>0 BEGIN IF CHARINDEX(SUBSTRING(','+@new_order3,1,CHARINDEX(',',@new_order3)),','+@FieldList+',')>0 BEGIN SET @FieldList = @FieldList + ',' + SUBSTRING(@new_order3,1,CHARINDEX(',',@new_order3))
END SET @new_order3 = SUBSTRING(@new_order3,CHARINDEX(',',@new_order3)+1,LEN(@new_order3)) END SET @FieldList = SUBSTRING(@FieldList,2,LEN(@FieldList))
END
END

SET @SqlCount = 'SELECT @TotalCount=COUNT(),@TotalPageCount=CEILING((COUNT()+0.0)/'

CAST(@PageSize AS VARCHAR)+') FROM ' + @TableName + @new_where1 IF @RecorderCount = 0 BEGIN EXEC SP_EXECUTESQL @SqlCount,N'@TotalCount INT OUTPUT,@TotalPageCount INT OUTPUT', @TotalCount OUTPUT,@TotalPageCount OUTPUT END ELSE BEGIN SELECT @TotalCount = @RecorderCount
END

IF @PageIndex > CEILING((@TotalCount+0.0)/@PageSize) BEGIN SET @PageIndex = CEILING((@TotalCount+0.0)/@PageSize) END

IF @PageIndex = 1 OR @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize) BEGIN IF @PageIndex = 1 --返回第一页数据 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '
- @TableName + @new_where1 + @new_order1 END IF @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize) --返回最后一页数据 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('
- 'SELECT TOP ' + STR(ABS(@PageSize*@PageIndex-@TotalCount-@PageSize))
- ' ' + @FieldList + ' FROM '
- @TableName + @new_where1 + @new_order2 + ' ) AS TMP '
- @new_order1
  END END ELSE BEGIN IF @SortType = 1 --仅主键正序排序 BEGIN IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2 --正向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '
  - @TableName + @new_where2 + @PrimaryKey + ' > '
  - '(SELECT MAX(' + @PrimaryKey + ') FROM (SELECT TOP '
  - STR(@PageSize*(@PageIndex-1)) + ' ' + @PrimaryKey
  - ' FROM ' + @TableName
  - @new_where1 + @new_order1 +' ) AS TMP) '+ @new_order1 END ELSE --反向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('
  - 'SELECT TOP ' + STR(@PageSize) + ' '
  - @FieldList + ' FROM '
  - @TableName + @new_where2 + @PrimaryKey + ' < '
  - '(SELECT MIN(' + @PrimaryKey + ') FROM (SELECT TOP '
  - STR(@TotalCount-@PageSize*@PageIndex) + ' ' + @PrimaryKey
  - ' FROM ' + @TableName
  - @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2
  - ' ) AS TMP ' + @new_order1 END END IF @SortType = 2 --仅主键反序排序 BEGIN IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2 --正向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '
  - @TableName + @new_where2 + @PrimaryKey + ' < '
  - '(SELECT MIN(' + @PrimaryKey + ') FROM (SELECT TOP '
  - STR(@PageSize*(@PageIndex-1)) + ' ' + @PrimaryKey +' FROM '+ @TableName
  - @new_where1 + @new_order1 + ') AS TMP) '+ @new_order1
    END ELSE --反向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('
  - 'SELECT TOP ' + STR(@PageSize) + ' '
  - @FieldList + ' FROM '
  - @TableName + @new_where2 + @PrimaryKey + ' > '
  - '(SELECT MAX(' + @PrimaryKey + ') FROM (SELECT TOP '
  - STR(@TotalCount-@PageSize*@PageIndex) + ' ' + @PrimaryKey
  - ' FROM ' + @TableName
  - @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2
  - ' ) AS TMP ' + @new_order1 END END
    IF @SortType = 3 --多列排序，必须包含主键，且放置最后，否则不处理 BEGIN IF CHARINDEX(',' + @PrimaryKey + ' ',',' + @Order) = 0 BEGIN PRINT('ERR_02') RETURN END IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2 --正向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '
  - 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '
  - ' SELECT TOP ' + STR(@PageSize*@PageIndex) + ' ' + @FieldList
  - ' FROM ' + @TableName + @new_where1 + @new_order1 + ' ) AS TMP '
  - @new_order2 + ' ) AS TMP ' + @new_order1 END ELSE --反向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '
  - 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '
  - ' SELECT TOP ' + STR(@TotalCount-@PageSize*@PageIndex+@PageSize) + ' ' + @FieldList
  - ' FROM ' + @TableName + @new_where1 + @new_order2 + ' ) AS TMP '
  - @new_order1 + ' ) AS TMP ' + @new_order1 END END END PRINT(@Sql) EXEC(@Sql) GO

2、SQL Server 中调用测试代码

--执行存储过程

declare @TotalCount int, @TotalPageCount int exec P_viewPage 'T_Module','*','ModuleID','','',1,0,10,1,@TotalCount output,@TotalPageCount output Select @TotalCount,@TotalPageCount;

asp.net 代码实现：

#region ===========通用分页存储过程=========== public static DataSet RunProcedureDS(string connectionString, string storedProcName, IDataParameter[] parameters, string tableName) { using (SqlConnection connection = new SqlConnection(connectionString)) { DataSet dataSet = new DataSet(); connection.Open(); SqlDataAdapter sqlDA = new SqlDataAdapter(); sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters); sqlDA.Fill(dataSet, tableName); connection.Close(); return dataSet; } } ///

/// 通用分页存储过程 ///

/// /// /// /// /// /// /// /// /// /// /// /// /// public static DataSet PageList(string connectionString, string tblName, string strGetFields, string primaryKey, string strWhere, string strOrder, int sortType, int recordCount, int PageSize, int PageIndex,ref int totalCount,ref int totalPageCount) { SqlParameter[] parameters ={ new SqlParameter("@TableName ",SqlDbType.VarChar,200), new SqlParameter("@FieldList",SqlDbType.VarChar,2000), new SqlParameter("@PrimaryKey",SqlDbType.VarChar,100), new SqlParameter("@Where",SqlDbType.VarChar,2000), new SqlParameter("@Order",SqlDbType.VarChar,1000), new SqlParameter("@SortType",SqlDbType.Int), new SqlParameter("@RecorderCount",SqlDbType.Int), new SqlParameter("@PageSize",SqlDbType.Int), new SqlParameter("@PageIndex",SqlDbType.Int), new SqlParameter("@TotalCount",SqlDbType.Int), new SqlParameter("@TotalPageCount",SqlDbType.Int)};

parameters[0].Value = tblName; parameters[1].Value = strGetFields; parameters[2].Value = primaryKey; parameters[3].Value = strWhere; parameters[4].Value = strOrder; parameters[5].Value = sortType; parameters[6].Value = recordCount; parameters[7].Value = PageSize; parameters[8].Value = PageIndex; parameters[9].Value = totalCount; parameters[9].Direction = ParameterDirection.Output; parameters[10].Value = totalPageCount; parameters[10].Direction = ParameterDirection.Output;

DataSet ds = RunProcedureDS(connectionString, "P_viewPage", parameters, "PageListTable"); totalCount = int.Parse(parameters[9].Value.ToString()); totalPageCount = int.Parse(parameters[10].Value.ToString()); return ds; } #endregion DataSet ds = SqlHelper.PageList(SqlHelper.LocalSqlServer, "T_User", "*", "UserID", "", "", 1, 0, pageSize, 1, ref totalCount, ref totalPageCount); this.RptData.DataSource = ds; this.RptData.DataBind();

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