コード例 #1
0
        public void Export2File(string connection, string sql, string dbType, string excelType, string fileName)
        {
            var ds = new DataSet();

            JlDatabase.Fill(HttpUtility.UrlDecode(connection), HttpUtility.UrlDecode(sql), ds, null, (JlDatabaseType)Enum.Parse(typeof(JlDatabaseType), dbType));

            var wbType = JlWorkbookType.HSSF;

            if (excelType == "xlsx")
            {
                wbType = JlWorkbookType.XSSF;
            }
            else if (excelType == "xls" && ds.Tables[0].Rows.Count > 65535)
            {
                throw new Exception("xls格式限制单sheet数据不超过65535行");
            }
            var wb = JlExcel.ExportToWorkbook(ds, wbType);

            System.Web.HttpContext.Current.Response.Clear();
            System.Web.HttpContext.Current.Response.AddHeader("content-disposition", "attachment; filename=" + (string.IsNullOrEmpty(fileName) ? DateTime.Now.ToString("yyyyMMddHHmmss") : fileName) + "." + excelType);
            System.Web.HttpContext.Current.Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            wb.Write(System.Web.HttpContext.Current.Response.OutputStream);
            //ep.SaveAs(Response.OutputStream); 第二种方式
            System.Web.HttpContext.Current.Response.Flush();
            System.Web.HttpContext.Current.Response.End();
        }
コード例 #2
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        public ActionResult GetDatas(string connection, string sql, string dbType)
        {
            sql        = HttpUtility.UrlDecode(sql);
            connection = HttpUtility.UrlDecode(connection);
            if (sql.Contains("delete ") || sql.Contains("update ") || sql.Contains("drop "))
            {
                return(new JlJsonResult()
                {
                    Content = JlJson.ToJson(new { Message = "涉及敏感关键字" })
                });
            }
            var ds = new DataSet();

            try
            {
                JlDatabase.Fill(connection, sql, ds, null, (JlDatabaseType)Enum.Parse(typeof(JlDatabaseType), dbType));
            }
            catch (Exception ex)
            {
                return(new JlJsonResult()
                {
                    Content = JlJson.ToJson(new { Message = ex.Message })
                });
            }
            var result = CommonMethod.ConvertDataTableToList(ds.Tables[0], true);

            return(new JlJsonResult()
            {
                Content = JlJson.ToJson(result)
            });
        }
コード例 #3
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        private static List <string> GetDatabaseTables_SqlServer(string connectionString)
        {
            var sql = @"SELECT name AS Name FROM SYSOBJECTS WHERE XTYPE IN ('V','U') AND NAME<>'DTPROPERTIES' ORDER BY Name ASC";

            var dataTable = new DataTable();

            JlDatabase.Fill(connectionString, sql, dataTable);

            return(dataTable.AsEnumerable().Select(row => row["Name"].ToString()).ToList());
        }
コード例 #4
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        private static List <string> GetDatabaseTables_MySql(string connectionString)
        {
            var dbName = connectionString.Split(new[] { "database=" }, StringSplitOptions.RemoveEmptyEntries)[1].Split(';')[0];
            var sql    = @"SELECT TABLE_NAME Name FROM information_schema.TABLES WHERE TABLE_SCHEMA = '" + dbName + "' AND TABLE_TYPE = 'BASE TABLE'";

            var dataTable = new DataTable();

            JlDatabase.Fill(connectionString, sql, dataTable, databaseType: JlDatabaseType.MySql);

            return(dataTable.AsEnumerable().Select(row => row["Name"].ToString()).ToList());
        }
コード例 #5
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        private static Dictionary <string, string> GetDatabaseTableDic_PostgreSql(string connectionString)
        {
            var result = new Dictionary <string, string>();

            var sql = @"select relname as Name,cast(obj_description(relfilenode,'pg_class') as varchar) as comment from pg_class c 
where  relkind = 'r' and relname not like 'pg_%' and relname not like 'sql_%' order by relname";

            var ds = new DataSet();

            JlDatabase.Fill(connectionString, sql, ds, null, JlDatabaseType.PostgreSql);
            ds.Tables[0].AsEnumerable().ForEach(row =>
            {
                result.Add(row["Name"].ToString(), row["comment"].ToString());
            });
            return(result);
        }
コード例 #6
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        private static List <JlFieldDescription> GetDatabaseColumns_PostgreSql(string connectionString, string tableName)
        {
            var dbName = connectionString.Split(new[] { "database=" }, StringSplitOptions.RemoveEmptyEntries)[1].Split(';')[0];
            var sql    = @"
select ordinal_position as Colorder,column_name as Name,data_type as DbType,
coalesce(character_maximum_length,numeric_precision,-1) as Length,numeric_scale as Scale,
case is_nullable when 'NO' then 0 else 1 end as IsNullable,column_default as DefaultVal,
case  when position('nextval' in column_default)>0 then 1 else 0 end as IsIdentity, 
case when b.pk_name is null then 0 else 1 end as IsPK,c.DeText Description
from information_schema.columns 
left join (
    select pg_attr.attname as colname,pg_constraint.conname as pk_name from pg_constraint  
    inner join pg_class on pg_constraint.conrelid = pg_class.oid 
    inner join pg_attribute pg_attr on pg_attr.attrelid = pg_class.oid and  pg_attr.attnum = pg_constraint.conkey[1] 
    inner join pg_type on pg_type.oid = pg_attr.atttypid
    where pg_class.relname = '{0}' and pg_constraint.contype='p' 
) b on b.colname = information_schema.columns.column_name
left join (
    select attname,description as DeText from pg_class
    left join pg_attribute pg_attr on pg_attr.attrelid= pg_class.oid
    left join pg_description pg_desc on pg_desc.objoid = pg_attr.attrelid and pg_desc.objsubid=pg_attr.attnum
    where pg_attr.attnum>0 and pg_attr.attrelid=pg_class.oid and pg_class.relname='{0}'
)c on c.attname = information_schema.columns.column_name
where table_schema='public' and table_name='{0}' order by ispk desc,isidentity desc,ordinal_position asc";

            sql = string.Format(sql, tableName);

            var ds = new DataSet();

            JlDatabase.Fill(connectionString, sql, ds, null, JlDatabaseType.PostgreSql);

            return(ds.Tables[0].AsEnumerable().Select(row => new JlFieldDescription()
            {
                Name = row["Name"].ToString(),
                DbType = row["DbType"].ToString(),
                Length = JlConvert.TryToInt(row["Length"]),
                IsNullable = JlConvert.TryToBool(row["IsNullable"].ToString() == "1"),
                IsIdentity = JlConvert.TryToBool(row["IsIdentity"].ToString() == "1"),
                ColumnKey = row["IsPK"].ToString() == "1" ? "PRI" : "",
                Description = HttpUtility.HtmlEncode(row["Description"].ToString())
            }).ToList());
        }
コード例 #7
0
        private static List <JlFieldDescription> GetDatabaseColumns_MySql(string connectionString, string tableName)
        {
            var dbName = connectionString.Split(new[] { "database=" }, StringSplitOptions.RemoveEmptyEntries)[1].Split(';')[0];
            var sql    = @"
                    SELECT COLUMN_NAME Name, COLUMN_COMMENT Description, DATA_TYPE DbType, IS_NULLABLE IsNullable, CHARACTER_MAXIMUM_LENGTH Length, Extra, COLUMN_KEY
                    FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = '" + dbName + "' AND TABLE_NAME like '{0}'";

            sql = string.Format(sql, tableName);

            var dataTable = new DataTable();

            JlDatabase.Fill(connectionString, sql, dataTable, databaseType: JlDatabaseType.MySql);

            return(dataTable.AsEnumerable().Select(row => new JlFieldDescription()
            {
                Name = JlString.ReplaceUnderline(row["Name"].ToString()),
                DbType = row["DbType"].ToString(),
                Length = JlConvert.TryToInt(row["Length"]),
                IsNullable = JlConvert.TryToBool(row["IsNullable"].ToString().ToLower() == "yes"),
                IsIdentity = JlConvert.TryToBool(row["Extra"].ToString().Contains("auto_increment")),
                ColumnKey = row["COLUMN_KEY"].ToString(),
                Description = HttpUtility.HtmlEncode(row["Description"].ToString())
            }).ToList());
        }
コード例 #8
0
        private static List <JlFieldDescription> GetDatabaseColumns_SqlServer(string connectionString, string tableName)
        {
            var sql = @"
SELECT 
    Name=C.name,
    DbType=T.name,
    PrimaryKey=ISNULL(IDX.PrimaryKey,N''),
    IsIdentity=CASE WHEN C.is_identity=1 THEN N'true'ELSE N'false' END,
    Length=C.max_length,
    IsNullable=CASE WHEN C.is_nullable=1 THEN N'true'ELSE N'false' END,
    Description=ISNULL(PFD.[value],N'')
FROM sys.columns C
    INNER JOIN sys.objects O
        ON C.[object_id]=O.[object_id]
            AND O.type='U'
            AND O.is_ms_shipped=0
    INNER JOIN sys.types T
        ON C.user_type_id=T.user_type_id
    LEFT JOIN sys.default_constraints D
        ON C.[object_id]=D.parent_object_id
            AND C.column_id=D.parent_column_id
            AND C.default_object_id=D.[object_id]
    LEFT JOIN sys.extended_properties PFD
        ON PFD.class=1 
            AND C.[object_id]=PFD.major_id 
            AND C.column_id=PFD.minor_id
--             AND PFD.name='Caption'  -- 字段说明对应的描述名称(一个字段可以添加多个不同name的描述)
    LEFT JOIN sys.extended_properties PTB
        ON PTB.class=1 
            AND PTB.minor_id=0 
            AND C.[object_id]=PTB.major_id
--             AND PFD.name='Caption'  -- 表说明对应的描述名称(一个表可以添加多个不同name的描述) 
    LEFT JOIN                       -- 索引及主键信息
    (
        SELECT 
            IDXC.[object_id],
            IDXC.column_id,
            Sort=CASE INDEXKEY_PROPERTY(IDXC.[object_id],IDXC.index_id,IDXC.index_column_id,'IsDescending')
                WHEN 1 THEN 'DESC' WHEN 0 THEN 'ASC' ELSE '' END,
            PrimaryKey=CASE WHEN IDX.is_primary_key=1 THEN N'PRI'ELSE N'' END,
            IndexName=IDX.Name
        FROM sys.indexes IDX
        INNER JOIN sys.index_columns IDXC
            ON IDX.[object_id]=IDXC.[object_id]
                AND IDX.index_id=IDXC.index_id
        LEFT JOIN sys.key_constraints KC
            ON IDX.[object_id]=KC.[parent_object_id]
                AND IDX.index_id=KC.unique_index_id
        INNER JOIN  -- 对于一个列包含多个索引的情况,只显示第1个索引信息
        (
            SELECT [object_id], Column_id, index_id=MIN(index_id)
            FROM sys.index_columns
            GROUP BY [object_id], Column_id
        ) IDXCUQ
            ON IDXC.[object_id]=IDXCUQ.[object_id]
                AND IDXC.Column_id=IDXCUQ.Column_id
                AND IDXC.index_id=IDXCUQ.index_id
    ) IDX
        ON C.[object_id]=IDX.[object_id]
            AND C.column_id=IDX.column_id 
			where O.name = '{0}'
            order by c.column_id";

            sql = string.Format(sql, tableName);

            var dataTable = new DataTable();

            JlDatabase.Fill(connectionString, sql, dataTable);

            return(dataTable.AsEnumerable().Select(row => new JlFieldDescription()
            {
                Name = JlString.ReplaceUnderline(row["Name"].ToString()),
                DbType = row["DbType"].ToString(),
                Length = JlConvert.TryToInt(row["Length"]),
                IsNullable = JlConvert.TryToBool(row["IsNullable"].ToString()),
                IsIdentity = JlConvert.TryToBool(row["IsIdentity"].ToString()),
                Description = HttpUtility.HtmlEncode(row["Description"].ToString()),
                ColumnKey = row["PrimaryKey"].ToString()
            }).ToList());
        }