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266 lines
12 KiB
266 lines
12 KiB
using grsvr6Lib;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Web;
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namespace NFine.Code
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{
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public class ServerUtility
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{
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/// <summary>
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/// 将报表生成的二进制数据响应给 HTPP 请求客户端
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/// </summary>
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/// <param name="context"> HTPP 请求对象</param>
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/// <param name="ExportResult">报表生成的二进制数据</param>
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/// <param name="FileName">指定下载(或保存)文件时的默认文件名称</param>
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/// <param name="ContentType">响应的ContentType</param>
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/// <param name="OpenMode">指定生成的数据打开模式，可选[inline|attachment]，"inline"表示在网页中内联显示，"attachment"表示以附件文件形式下载。如果不指定，由浏览器自动确定打开方式。</param>
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public static void ResponseBinary(HttpContext context, IGRBinaryObject ExportResult, string FileName, string ContentType, string OpenMode)
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{
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if (ExportResult.DataSize > 0)
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{
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string Disposition = "";
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if (OpenMode != null && OpenMode.Length > 0)
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Disposition = OpenMode + "; ";
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Disposition += ServerUtility.EncodeAttachmentFileName(context.Request.UserAgent, FileName);
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context.Response.ContentType = ContentType;
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context.Response.AppendHeader("Content-Length", ExportResult.DataSize.ToString());
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context.Response.AppendHeader("Content-Disposition", Disposition);
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context.Response.ClearContent();
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byte[] buffer = new byte[ExportResult.DataSize];
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System.Runtime.InteropServices.Marshal.Copy((IntPtr)ExportResult.DataBuf, buffer, 0, ExportResult.DataSize);
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context.Response.BinaryWrite(buffer);
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context.Response.Flush();
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}
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}
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/// <summary>
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/// 将异常信息文字响应给请求的客户端
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/// </summary>
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/// <param name="context"></param>
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/// <param name="MessageText"></param>
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public static void ResponseException(HttpContext context, string MessageText)
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{
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context.Response.ContentType = "text/plain";
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context.Response.Write(MessageText);
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}
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/// <summary>
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/// 为了文件名中的汉字与特殊字符能正确，必须进行分浏览器处理
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/// </summary>
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/// <param name="BrowserAgent"></param>
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/// <param name="RawFileName"></param>
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/// <returns></returns>
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public static string EncodeAttachmentFileName(string BrowserAgent, string RawFileName)
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{
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System.Text.UTF8Encoding UTF8Encoding = new System.Text.UTF8Encoding();
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string EncodedFileName = HttpUtility.UrlEncode(RawFileName, UTF8Encoding);
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// 如果没有BrowserAgent，则默认使用IE的方式进行编码，因为毕竟IE还是占多数的
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string ret = "filename=\"" + EncodedFileName + "\"";
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if (BrowserAgent != null && BrowserAgent.Length != 0)
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{
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BrowserAgent = BrowserAgent.ToLower();
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// msie 与 edge 采用默认的方式
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if ((BrowserAgent.IndexOf("msie") == -1) && (BrowserAgent.IndexOf("edge") == -1))
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{
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// Chrome浏览器，只能采用MimeUtility编码或ISO编码的中文输出
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if (BrowserAgent.IndexOf("applewebkit") != -1)
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{
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//EncodedFileName = MimeUtility.encodeText(RawFileName, "UTF8", "B");
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System.Text.UTF8Encoding UTF8EncodingBOM = new System.Text.UTF8Encoding(true);
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EncodedFileName = UTF8EncodingBOM.GetString(UTF8EncodingBOM.GetBytes(RawFileName));
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ret = "filename=\"" + EncodedFileName + "\"";
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}
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// Safari浏览器，只能采用ISO编码的中文输出
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else if (BrowserAgent.IndexOf("safari") != -1)
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{
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//28591 iso-8859-1 1252 *
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//ret = "filename=\"" + new String(filename.getBytes("UTF-8"), "ISO8859-1") + "\"";
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byte[] UTF8Bytes = UTF8Encoding.GetBytes(RawFileName);
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string ISO8859Text = System.Text.Encoding.GetEncoding(28591).GetString(UTF8Bytes);
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ret = "filename=\"" + ISO8859Text + "\"";
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}
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// Opera浏览器只能采用filename*
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// FireFox浏览器，可以使用MimeUtility或filename*或ISO编码的中文输出
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else if ((BrowserAgent.IndexOf("opera") != -1) || (BrowserAgent.IndexOf("mozilla") != -1))
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{
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ret = "filename*=UTF-8''" + EncodedFileName;
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}
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}
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}
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return ret;
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}
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/// <summary>
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/// 根据报表模板中的查询SQL获取报表数据
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/// </summary>
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//public static string BuildFromSelfSQL(GridppReportServer Report)
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//{
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// string DataText = "";
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// //从 XML 或 JSON 数据包中载入报表数据
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// string MasterQuerySQL = Report.QuerySQL;
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// string DetailQuerySQL = Report.DetailGrid != null ? Report.DetailGrid.Recordset.QuerySQL : null;
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// bool MasterAssigned = (MasterQuerySQL != null && MasterQuerySQL.Length > 0);
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// bool DetailAssigned = (DetailQuerySQL != null && DetailQuerySQL.Length > 0);
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// if (MasterAssigned || DetailAssigned)
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// {
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// if (MasterAssigned && DetailAssigned)
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// {
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// string MasterTableName = Report.XmlTableName;
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// if (MasterTableName == null || MasterTableName.Length == 0)
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// MasterTableName = "Master";
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// string DetailTableName = Report.DetailGrid.Recordset.XmlTableName;
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// if (DetailTableName == null || DetailTableName.Length == 0)
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// DetailTableName = "Detail";
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// ArrayList QueryList = new ArrayList();
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// QueryList.Add(new ReportQueryItem(DetailQuerySQL, DetailTableName));
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// QueryList.Add(new ReportQueryItem(MasterQuerySQL, MasterTableName));
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// DataText = DataTextProvider.Build(QueryList);
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// }
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// else
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// {
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// DataText = DataTextProvider.Build(MasterAssigned ? MasterQuerySQL : DetailQuerySQL);
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// }
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// }
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// return DataText;
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//}
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private struct MatchFieldPairType
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{
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public IGRField grField;
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public int MatchColumnIndex;
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}
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// 将 DataReader 的数据转储到 Grid++Report 的记录集中
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public static void FillRecordToReport(IGridppReport Report, IDataReader dr)
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{
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MatchFieldPairType[] MatchFieldPairs = new MatchFieldPairType[Math.Min(Report.DetailGrid.Recordset.Fields.Count, dr.FieldCount)];
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//根据字段名称与列名称进行匹配，建立DataReader字段与Grid++Report记录集的字段之间的对应关系
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int MatchFieldCount = 0;
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for (int i = 0; i < dr.FieldCount; ++i)
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{
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foreach (IGRField fld in Report.DetailGrid.Recordset.Fields)
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{
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if (String.Compare(fld.RunningDBField, dr.GetName(i), true) == 0)
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{
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MatchFieldPairs[MatchFieldCount].grField = fld;
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MatchFieldPairs[MatchFieldCount].MatchColumnIndex = i;
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++MatchFieldCount;
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break;
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}
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}
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}
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// 将 DataReader 中的每一条记录转储到 Grid++Report 的记录集中去
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while (dr.Read())
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{
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Report.DetailGrid.Recordset.Append();
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for (int i = 0; i < MatchFieldCount; ++i)
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{
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if (!dr.IsDBNull(MatchFieldPairs[i].MatchColumnIndex))
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MatchFieldPairs[i].grField.Value = dr.GetValue(MatchFieldPairs[i].MatchColumnIndex);
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}
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Report.DetailGrid.Recordset.Post();
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}
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}
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// 将 DataTable 的数据转储到 Grid++Report 的记录集中
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public static void FillRecordToReport(IGridppReport Report, DataTable dt)
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{
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MatchFieldPairType[] MatchFieldPairs = new MatchFieldPairType[Math.Min(Report.DetailGrid.Recordset.Fields.Count, dt.Columns.Count)];
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//根据字段名称与列名称进行匹配，建立DataReader字段与Grid++Report记录集的字段之间的对应关系
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int MatchFieldCount = 0;
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for (int i = 0; i < dt.Columns.Count; ++i)
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{
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foreach (IGRField fld in Report.DetailGrid.Recordset.Fields)
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{
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if (String.Compare(fld.Name, dt.Columns[i].ColumnName, true) == 0)
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{
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MatchFieldPairs[MatchFieldCount].grField = fld;
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MatchFieldPairs[MatchFieldCount].MatchColumnIndex = i;
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++MatchFieldCount;
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break;
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}
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}
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}
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// 将 DataTable 中的每一条记录转储到 Grid++Report 的记录集中去
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foreach (DataRow dr in dt.Rows)
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{
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Report.DetailGrid.Recordset.Append();
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for (int i = 0; i < MatchFieldCount; ++i)
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{
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if (!dr.IsNull(MatchFieldPairs[i].MatchColumnIndex))
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MatchFieldPairs[i].grField.Value = dr[MatchFieldPairs[i].MatchColumnIndex];
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}
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Report.DetailGrid.Recordset.Post();
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}
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}
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public static uint RGBToOleColor(byte r, byte g, byte b)
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{
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return ((uint)b) * 256 * 256 + ((uint)g) * 256 + r;
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}
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public static uint ColorToOleColor(System.Drawing.Color val)
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{
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return RGBToOleColor(val.R, val.G, val.B);
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}
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//判断当前运行进程是不是64位程序
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public static bool Is64bitProcess()
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{
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//IsWow64Process
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//也可以直接用Environment.Is64BitProcess，不过需要DotNet4.0或以上版本。
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return (IntPtr.Size == 8);
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}
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//生成数据源连接串，根据当前运行环境与配置参数进行实际调整
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public static string BuildOLEDBConnectionString()
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{
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//Grid++Report的64位程序通过OLE DB连接Access与32位程序使用完全不同的数据驱动程序，
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//此数据驱动程序(AccessDatabaseEngine_X64.exe)没有跟随Windows系统自动安装，需要从
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//微软网站下载并安装, 下载地址：https://www.microsoft.com/zh-CN/download/details.aspx?id=13255
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//如果直接不能安装，要先将Ofiice卸载后再进行安装，驱动程序安装后，在重新安装Office。
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return (Is64bitProcess() ? "Provider = Microsoft.ACE.OLEDB.12.0;" : "Provider=Microsoft.Jet.OLEDB.4.0;") +
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"User ID=Admin;Data Source=" + @"C:\Grid++Report 6\Samples\Data\NorthWind.mdb";
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}
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}
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public class ReportQueryItem
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{
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public string QuerySQL;
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public string RecordsetName;
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public ReportQueryItem(string AQuerySQL, string ARecordsetName)
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{
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QuerySQL = AQuerySQL;
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RecordsetName = ARecordsetName;
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}
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};
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}
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