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asp.net简单实现导出excel报表

时间:2015/6/28来源:IT猫扑网作者:网管联盟我要评论(0)

  关于导出excel报表,网上也是一搜一大把。整理一下,无非就是几种思路,有利用安装excel软件或插件的服务器直接生成,或者直接在客户端生成(通常都是利用excel软件或插件直接在浏览器生成)。反正万变不离其宗,离开excel插件,这个活你还真的干不了,由此你可以看到软件公司尤其是微软的强大。下面贴一个比较简单的导出excel报表的方法。在安装了office2003的机器上,通过ie浏览器可以成功生成excel,而且一直有人在使用。如果你在测试的时候发现这个根本无法使用,请注意,这个很可能和你的机器配置有关,别怀疑代码的正确性。下面就一个利用iBatis开发的例子来简单说明一下。

  1、实体类

  Code

  using System;

  using System.Collections.Generic;

  using System.Text;

  #region Apache Notice

  /*****************************************************************************

  * $Header: $

  * $Revision: 383115 $

  * $Date: 2006-04-15 13:21:51 +0800 (星期六, 04 三月 2006) $

  *

  * IBatisNetDemo

  * Copyright (C) 2006 - Shanyou Zhang

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *      https://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  *

  ********************************************************************************/

  #endregion

  namespace IBatisNetDemo.Domain

  {

  [Serializable]

  public class Person

  {

  private int id;

  private string firstName;

  private string lastName;

  private DateTime? birthDate;

  private double? weightInKilograms;

  private double? heightInMeters;

  public Person() { }

  public int Id

  {

  get { return id; }

  set { id = value; }

  }

  public string FirstName

  {

  get { return firstName; }

  set { firstName = value; }

  }

  public string LastName

  {

  get { return lastName; }

  set { lastName = value; }

  }

  public DateTime? BirthDate

  {

  get { return birthDate; }

  set { birthDate = value; }

  }

  public double? WeightInKilograms

  {

  get { return weightInKilograms; }

  set { weightInKilograms = value; }

  }

  public double? HeightInMeters

  {

  get { return heightInMeters; }

  set { heightInMeters = value; }

  }

  }

  }

  2、导出excel报表主程序方法

  Code

  using System;

  using System.Collections.Generic;

  using System.Text;

  using System.Web;

  using System.Web.UI;

  using System.IO;

  using System.Reflection;

#p#副标题#e#

  namespace DotNet.Common.Util

  {

  /// <summary>

  /// 导出excel 简单实现

  /// </summary>

  public static class ExcelUtil

  {

  private static Page currentPage = HttpContext.Current.Handler  as Page;

  private static Object sycObj = new Object();

  private static int incremental = 10;

  /// <summary>

  /// 按照时间生成excel名称 防止生成相同名的excel造成文件覆盖

  /// </summary>

  /// <returns></returns>

  private static string CreateExcelName()

  {

  lock (sycObj)

  {

  incremental = incremental + 1;

  if (incremental > 99)

  incremental = 10;

  return Convert.ToInt64(DateTime.Now.ToString("yyyyMMddHHmmssfff") + incremental).ToString();

  }

  }

  /// <summary>

  /// 导出excel

  /// </summary>

  /// <typeparam name="T">泛型实体</typeparam>

  /// <param name="response"></param>

  /// <param name="listColumes">要显示的列名</param>

  /// <param name="listProperty">要显示的导出属性名  和实体的属性名有关,顺序由显示的列确定 可以同listColumes</param>

  /// <param name="listModel">实体集合</param>

  public static void ExportExcel<T>(HttpResponse response, IList<string> listColumns, IList<string> listProperty, IList<T> listModel) where T : class, new()

  {

  if (listColumns.Count == 0)

  {

  throw new IndexOutOfRangeException("No Columnes!");

  }

  if (listColumns.Count != listProperty.Count)

  {

  throw new ArgumentException("Columns and properties length are not equal.");

  }

  string sheetName = "sheetName";

  using (StringWriter writer = new StringWriter())

  {

  writer.WriteLine("<html xmlns:x=\"urn:schemas-microsoft-com:office:excel\">");

  writer.WriteLine("<head>");

  writer.WriteLine("<!--[if gte mso 9]>");

  writer.WriteLine("<xml>");

  writer.WriteLine(" <x:ExcelWorkbook>");

  writer.WriteLine("  <x:ExcelWorksheets>");

  writer.WriteLine("   <x:ExcelWorksheet>");

  writer.WriteLine("    <x:Name>" + sheetName + "</x:Name>");

  writer.WriteLine("    <x:WorksheetOptions>");

  writer.WriteLine("      <x:Print>");

  writer.WriteLine(" <x:ValidPrinterInfo />");

  writer.WriteLine("      </x:Print>");

  writer.WriteLine("    </x:WorksheetOptions>");

  writer.WriteLine("   </x:ExcelWorksheet>");

  writer.WriteLine("  </x:ExcelWorksheets>");

  writer.WriteLine("</x:ExcelWorkbook>");

  writer.WriteLine("</xml>");

  writer.WriteLine("<![endif]-->");

  writer.WriteLine("</head>");

  writer.WriteLine("<body>");

  writer.WriteLine("<table>");

  writer.WriteLine("<tr>");

  foreach (string item in listColumns)

  {

  writer.WriteLine("<td>" + item + "</td>"); //列名

  }

  writer.WriteLine("</tr>");

  //通过反射 显示要显示的列

  BindingFlags bf = BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static;//反射标识

  Type objType = typeof(T);

  PropertyInfo[] propInfoArr = objType.GetProperties(bf);

  foreach (T model in listModel)

  {

  writer.WriteLine("<tr>");

  foreach (PropertyInfo propInf

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