Sharepoint学习笔记---如何在Sharepoint2010网站中整合Crystal Report水晶报表(显示图片)

上篇贴子讲述了如何显示报表的数据内容,但这样显示出来的报表有个问题,那就是报表中的图片无法显示(如报表的logo,Chart图片等)。
网上有贴子讲述此问题,但在Sharepoint2010中貌似有些差异。我们在报表的图片位置查看图片链接时可以看到类似如下内容:
http://sharepoint-dev:2010/sites/StarCompany/_layouts/Solutions/CrystalImageHandler.aspx?dynamicimage=cr_tmp_image_a6f5a0d8-80f9-4a2b-a04b-169a49e10a53.png
也就是说,Crystal Report使用到了CrystalImageHandler.aspx来显示图片,因为在我们的Sharepoint网站中没有此Handler,所以网上做法是使用

步骤一在Sharepoint项目的Layout对应目录下创建一个CrystalImageHandler.aspx

CrystalImageHandler.aspx内容如下

<% @ Assembly Name = " $SharePoint.Project.AssemblyFullName$ "   %>
<% @ Import Namespace = " Microsoft.SharePoint.ApplicationPages "   %>
<% @ Register Tagprefix = " SharePoint "  Namespace = " Microsoft.SharePoint.WebControls "  Assembly = " Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c "   %>
<% @ Register Tagprefix = " Utilities "  Namespace = " Microsoft.SharePoint.Utilities "  Assembly = " Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c "   %>
<% @ Register Tagprefix = " asp "  Namespace = " System.Web.UI "  Assembly = " System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 "   %>
<% @ Register Assembly = " CrystalDecisions.Web, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304 "
 Namespace
= " CrystalDecisions.Web "  TagPrefix = " CR "   %>
<% @ Register Assembly = " CrystalDecisions.CrystalReports.Engine, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304 "
 Namespace
= " CrystalDecisions.Web "  TagPrefix = " CR "   %>
<% @ Register Assembly = " CrystalDecisions.Shared, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304 "
 Namespace
= " CrystalDecisions.Web "  TagPrefix = " CR "   %>
<% @ Import Namespace = " Microsoft.SharePoint "   %>
<% @ Assembly Name = " Microsoft.Web.CommandUI, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c "   %>
<% @ Page Language = " C# "  AutoEventWireup = " true "  CodeBehind = " CrystalImageHandler.aspx.cs "  Inherits = " StarCompanySpSolutions.Layouts.Solutions.CrystalImageHandler "  DynamicMasterPageFile = " ~masterurl/default.master "   %>
< asp:Content  ID ="PageHead"  ContentPlaceHolderID ="PlaceHolderAdditionalPageHead"  runat ="server" ></ asp:Content >
< asp:Content  ID ="Main"  ContentPlaceHolderID ="PlaceHolderMain"  runat ="server" ></ asp:Content >
< asp:Content  ID ="PageTitle"  ContentPlaceHolderID ="PlaceHolderPageTitle"  runat ="server" > Application Page </ asp:Content >
< asp:Content  ID ="PageTitleInTitleArea"  ContentPlaceHolderID ="PlaceHolderPageTitleInTitleArea"  runat ="server"   > My Application Page </ asp:Content >

 

CrystalImageHandler.aspx.cs内容如下

 

public partial class CrystalImageHandler : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        // get the Crystal Reports temporary file name
        String strtempImagePath = Request.QueryString["dynamicimage"]; 
        if (strtempImagePath != null)
        {
            // send the temporary image file
            SPWeb thissite = SPControl.GetContextWeb(Context);
            String strsitename = thissite.Site.HostName;
            int iport = thissite.Site.Port;
            String strport = Convert.ToString(iport);
            Response.TransmitFile(@"C:\WINDOWS\Temp\cr_tmp_image__" + 
                     strsitename + strport + "\\" + strtempImagePath);
        }
    }
}

此方法作了偿试,但问题是在Sharepoin2010中,CrystalReport并没有在C:\WINDOWS\Temp\目录下创建临时文件,所以使用Response.TransmitFile(@"C:\WINDOWS\Temp\cr_tmp_image__" +                      strsitename + strport + "\\" + strtempImagePath);在Sharepoint2010中行不通。手功创建的Handler将找不到Crystal Report动态创建的临时图片文件。于是进一步偿试

 

步骤二:修改Webconfig文件。修改你自己的Sharepoint网站的Webconfig文件

在其<system.web>的<httpHandlers>节中加入如下内容:

  < httpHandlers >
       < add  verb ="GET"  path ="CrystalImageHandler.aspx"  type ="CrystalDecisions.Web.CrystalImageHandler, CrystalDecisions.Web, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"   />
       < add  verb ="*"  path ="GenerateImage.ashx"  type ="GenerateDynamicImage"   />
     </ httpHandlers >

 

在<system.webServer>的<handlers />节中加入如下内容:

  < handlers >
  < add  name ="CrystalImageHandler.aspx"  verb ="GET"  path ="CrystalImageHandler.aspx"  type ="CrystalDecisions.Web.CrystalImageHandler, CrystalDecisions.Web, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"  preCondition ="integratedMode"   />
  </ handlers >

保存修改,重启网站,使刚才的修改生效,在网站中打开水晶报表,终于看到了报表中的图片内容以及图表内容。

注:在修改Webconfig时,请

1、保存好修改前的Webconfig文件。

2、要检查你自己的Crystal report版本,本例使用的Version号是13.0.2000.0,而你的代码可能要随着你自己的Crystal Reprot版本号要作适当修改

 

 

相关链接: Sharepoint学习笔记---如何在Sharepoint2010网站中整合Crystal Report水晶报表(显示数据 一)
相关链接: Sharepoint学习笔记---如何在Sharepoint2010网站中整合Crystal Report水晶报表(显示数据 二)
相关链接: Sharepoint学习笔记---如何在Sharepoint2010网站中整合Crystal Report水晶报表(报表登录处理)

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