1 public static bool insertPic(string AbosultedFilePath, string fileName, float cWidth, float cHeight)
2 {
3 object m_objOpt = System.Reflection.Missing.Value;
4 //检查Excel文件是否存在，如果不存在，则退出
5   if (!File.Exists(AbosultedFilePath + fileName + ".xls"))
6 return false;
7
8 //创建Excel应用程序对象，如果未创建成功则退出
9   Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
10 if (xlApp == null)
11 {
12 System.Web.HttpContext.Current.Response.Write("无法创建Excel对象，可能你的电脑未装Excel");
13 return false;
14 }
15
16 Microsoft.Office.Interop.Excel.Workbooks workbooks = xlApp.Workbooks;
17 Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Open(AbosultedFilePath + fileName + ".xls", Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
18 Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1]; //取得sheet1
19 worksheet.Shapes.AddPicture(AbosultedFilePath + fileName + ".jpg", MsoTriState.msoFalse, MsoTriState.msoTrue, 5, 5, cWidth, cHeight);
20
21 try
22 {
23 workbook.Saved = true;
24 workbook.SaveAs(AbosultedFilePath + fileName + ".xls", m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);
25 }
26 catch (Exception ex)
27 {
28 System.Web.HttpContext.Current.Response.Write("导出文件时出错，文件可能正被打开!\n" + ex.ToString());
29 return false;
30 }
31
32 workbooks.Close();
33
34 if (xlApp != null)
35 {
36 xlApp.Workbooks.Close();
37 xlApp.Quit();
38
39 int generation = System.GC.GetGeneration(xlApp);
40 System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp);
41
42 xlApp = null;
43 System.GC.Collect(generation);
44 }
45 GC.Collect(); //强行销毁
46
47 #region 强行杀死最近打开的Excel进程
48 System.Diagnostics.Process[] excelProc = System.Diagnostics.Process.GetProcessesByName("EXCEL");
49 System.DateTime startTime = new DateTime();
50 int m, killID = 0;
51 for (m = 0; m < excelProc.Length; m++)
52 {
53 if (startTime < excelProc[m].StartTime)
54 {
55 startTime = excelProc[m].StartTime;
56 killID = m;
57 }
58 }
59 if (excelProc[killID].HasExited == false)
60 {
61 excelProc[killID].Kill();
62 }
63 #endregion
64
65 if (File.Exists(AbosultedFilePath + fileName + ".jpg"))
66 {
67 File.Delete(AbosultedFilePath + fileName + ".jpg");
68 }
69
70 if (saveExcel(AbosultedFilePath + fileName + ".xls"))
71 {
72 File.Delete(AbosultedFilePath + fileName + ".xls");
73 return true;
74 }
75 else
76 {
77 return false;
78 }
79 }
80
81 public static bool saveExcel(string FileName)
82 {
83 try
84 {
85 string FullFileName = FileName;
86 //FileName--要下载的文件名
87 FileInfo DownloadFile = new FileInfo(FullFileName);
88 if (DownloadFile.Exists)
89 {
90 System.Web.HttpContext curContext = System.Web.HttpContext.Current;
91 curContext.Response.Clear();
92 curContext.Response.ClearHeaders();
93 curContext.Response.Buffer = false;
94 curContext.Response.ContentType = "application/octet-stream";
95 curContext.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(DownloadFile.FullName, System.Text.Encoding.ASCII));
96 curContext.Response.AppendHeader("Content-Length", DownloadFile.Length.ToString());
97 curContext.Response.WriteFile(DownloadFile.FullName);
98 curContext.Response.Flush();
99 curContext.Response.End();
100 DownloadFile.Delete();
101 return true;
102 }
103 else
104 {
105 //文件不存在
106 return false;
107 }
108 }
109 catch
110 {
111 //打开时异常了
112 return false;
113 }
114 }