Java web的读取Excel简单实例代码

前端技术 2023/09/03 Java

目录结构:

Data.xls数据:

 

后台页面:

public void doGet(HttpServletRequest request, HttpServletResponse response) 

      throws ServletException, IOException { 

    //System.out.println(this.getServletContext().getRealPath (\"/\")); 

    try{ 

      Workbook wb = Workbook.getWorkbook( 

          new File(this.getServletContext().getRealPath (\"/\")+\"data.xls\")); 

      System.out.println(\"2222222\"); 

      List<Data> data = new ArrayList<Data>(); 

      for(int i=1;i<wb.getSheet(0).getRows();i++){ 

        Cell[] cell = wb.getSheet(0).getRow(i); 

        data.add(new Data(cell[0].getContents(),cell[1].getContents(),cell[2].getContents()));                 

        System.out.println(cell[1].getContents());           

      } 

      wb.close(); 

      request.setAttribute(\"data\", data); 

      request.getRequestDispatcher(\"../index.jsp\").forward(request, response); 

    }catch(Exception e){ 

      e.printStackTrace(); 

    } 

  } 

Data.java

 

public class Data { 

 

   

  private String id; 

  private String name; 

  private String password; 

   

   

   

  public Data() { 

    super(); 

    // TODO Auto-generated constructor stub 

  } 

  public Data(String id, String name, String password) { 

    super(); 

    this.id = id; 

    this.name = name; 

    this.password = password; 

  } 

  public String getId() { 

    return id; 

  } 

 前台页面:

Index.jsp:

<body> 

<form action=\"servlet/getExcelData\" method=\"post\"> 

<input type=\"submit\" id=\"tijiao\" value=\"submit\"> 

</form> 

<% 

  List<Data> data = new ArrayList<Data>(); 

  data=(List<Data>)request.getAttribute(\"data\"); 

  if(data!=null&&data.size()>0) 

  for(Data d:data){ 

    out.println(d.getId()+\"---\"+d.getName()+\"---\"+d.getPassword()); 

  }   

%> 

</body> 

运行结果:

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