java/excel上传，解析，导入数据库

这篇文章是介绍java中的poi技术读取Excel数据，然后保存到MySQL数据中。

------------------------------jsp页面-----------------------------

<script type="text/javascript">

 //点击上传时判断是否选择文件

var fileSizeValidate=function()

 {

  var p1 = document.getElementById("file").value;

  if(p1==""){

   return false;

  }

  return true;

 }

      

 function input(){

  

   if(!fileSizeValidate()){

   alert("请先选择文件！");

   return ;

  }else{

  document.getElementById("inputFile").submit();

 

  }

   

 }

</script>

<s:form action="upload_upExcel.action" method="post" enctype="multipart/form-data" id="inputFile">

  <table >

   <tr>

    <!-- 上传文件标签定义 -->

    <td class="font_colors03"><label>指定导入文件： </label> <s:file

      name="file" id="file"></s:file></td>

    <td><label>

      <input id="upsubmit" type="button" value="导入" onclick="input();"

      style="width:50px;height:25px" />

      

      </label>

      </td>

   </tr>

  </table>

 </s:form>

---------------------------------------------------action-----------------------------------------------

// 上传文件集合

  private File file;

  // 上传文件名集合

  private List<String> fileFileName;

    public String upExcel() throws LogisticException {

               try {

                 if (file != null) {

         InputStream in = new FileInputStream(file);

         String pathString = "D:/upload";

    

         String fileNameString = peopleCode

      + "-"

      + this.getFileFileName().get(0);

    File upLoadFile = new File(pathString, fileNameString);

    System.out.println("导入文件：" + fileNameString);

    OutputStream out = new FileOutputStream(upLoadFile);

    

    byte[] buffer = new byte[1024 * 1024];

    int len = 0;

    while ((len = in.read(buffer)) > 0) {

     out.write(buffer, 0, len);

    }

jieXiExcel(fileNameString);

    in.close();

    out.close();

                 }

           } catch (Exception e) {

   e.printStackTrace();

  }

 /**

   * 解析文件方法

   *

   * @param fileName

   * @return map

   */

  public Map<String, String> jieXiExcel(String fileName) {

   Map<String, String> map = new HashMap<String, String>();

   try {

    // 通过Workbook的静态方法getWorkbook选取Excel文件

    String parhString = "D:/upload";

    Workbook workbook = Workbook.getWorkbook(new File(parhString + "/"

      + fileName));

    // 通过Workbook的getSheet方法选择第一个工作簿（从0开始）

    Sheet sheet = workbook.getSheet(0);

    int rows = sheet.getRows();

    int cols = sheet.getColumns();

    Cell cells[][] = new Cell[cols][rows];

    Date date = null;

    for (int r = 0; r < rows; r++) {

     for (int c = 1; c < cols - 1; c++) {

      cells[c][r] = sheet.getCell(c, r);

      // String value = "";

      String cellVal = "";

      cellVal = cells[c][r].getContents();

      map.put("cells[" + c + "][" + r + "]", cellVal);

     }

    }

    for (int rr = 0; rr < rows; rr++) {

     Backdetail backdetail = new Backdetail();

     backdetail.setSceneType(0);

    ..............

     for (int cc = 1; cc < cols - 1; cc++) {

      String val = map.get("cells[" + cc + "][" + rr + "]");

      if (cc == 1) {

            backdetail.setBackdate(val);

      }

      if (cc == 2) {

       backdetail.setBackscene(val);

      }

      if (cc == 3) {

       backdetail.setInscene(val);

      }

      .............      }

      // System.out.println(map.get("cell["+cc+"]["+rr+"]"));

     }

     // 保存数据 到库

     backDetailImpl.save(backdetail);

    }

    System.out.println("导入数据完成!");

    workbook.close();

   } catch (BiffException e) {

    e.printStackTrace();

   } catch (IOException e) {

    e.printStackTrace();

   } catch (Exception e) {

    e.printStackTrace();

   }

   return map;

  }