将excel代码写入数据库

我想读取一个excel文件，然后将excel的内容写入数据库。如果我打印，我可以读取excel并在输出下方显示。我想知道如何将这些数据分离或拆分为数据库中的列并将数据存储在数据库中。如果我分为不同的列，我在DB中有一个表格，可以保存下面的数据。将excel代码写入数据库


//CODE OUTPUT 
1.0  Henry  Rey  Staff  IT  Software Engg  New Hire  TigoAdmin  11-Oct-2012  11-Oct-2012  555.0
 
2.0  Nick  Murry  Staff  IT  Administrator  New Hire  TigoAdmin  11-Oct-2012  11-Oct-2012  555.0  

// BELOW is the CODE 

package com.project.bulk; 

import java.io.FileInputStream; 
import java.util.Iterator; 
import java.util.Vector; 

import org.apache.poi.hssf.usermodel.HSSFCell; 
import org.apache.poi.hssf.usermodel.HSSFRow; 
import org.apache.poi.hssf.usermodel.HSSFSheet; 
import org.apache.poi.hssf.usermodel.HSSFWorkbook; 
import org.apache.poi.poifs.filesystem.POIFSFileSystem; 

public class ReadExcelFile { 

     public static void main(String[] args) { 

       String fileName = "C:\\excelFile.xls"; 
       Vector dataHolder = ReadCSV(fileName); 
       printCellDataToConsole(dataHolder); 
     } 

     public static Vector ReadCSV(String fileName) { 
       Vector cellVectorHolder = new Vector(); 

       try { 
         FileInputStream myInput = new FileInputStream(fileName); 

         POIFSFileSystem myFileSystem = new POIFSFileSystem(myInput); 

         HSSFWorkbook myWorkBook = new HSSFWorkbook(myFileSystem); 

         HSSFSheet mySheet = myWorkBook.getSheetAt(0); 

         Iterator rowIter = mySheet.rowIterator(); 

         while (rowIter.hasNext()) { 
           HSSFRow myRow = (HSSFRow) rowIter.next(); 
           Iterator cellIter = myRow.cellIterator(); 
           Vector cellStoreVector = new Vector(); 
           while (cellIter.hasNext()) { 
             HSSFCell myCell = (HSSFCell) cellIter.next(); 
             cellStoreVector.addElement(myCell); 
           } 
           cellVectorHolder.addElement(cellStoreVector); 
         } 
       } catch (Exception e) { 
         e.printStackTrace(); 
       } 
       return cellVectorHolder; 
     } 

     private static void printCellDataToConsole(Vector dataHolder) { 

       for (int i = 0; i < dataHolder.size(); i++) { 
         Vector cellStoreVector = (Vector) dataHolder.elementAt(i); 
         for (int j = 0; j < cellStoreVector.size(); j++) { 
           HSSFCell myCell = (HSSFCell) cellStoreVector.elementAt(j); 
           String stringCellValue = myCell.toString(); 
           System.out.print(stringCellValue + "\t\t"); 
         } 
         System.out.println(); 
       } 
     } 
}

来源

2012-10-14 user1710288

您需要了解如何使用String.split（）方法和JDBC API与数据库进行通信。 –

@ Code-Guru如何帮助在数据库中插入数据？ –

既然你有一个向量来保存Excel文件中的数据，你只需要JDBC语句就可以在表中插入数据。 –

如果您不知道将向语句发送多少个参数，则可以创建一个方法来处理它。我会给你一个非常基本的例子，记住这种方法可以大大改善。

public void executeSQLUpdate(String sql, List<Object> arguments) { 
    Connection con = null; 
    PreparedStatement pstmt = null; 
    try { 
     con = getConnection(); //a method that returns a java.sql.Connection to your database 
     pstmt = con.prepareStatement(sql); 
     if (arguments != null) { 
      int i = 1; 
      for(Object o : arguments) { 
       pstmt.setObject(i++, o); 
      } 
     } 
     //method to execute insert, update, delete statements... 
     pstmt.executeUpdate(); 
    } catch(SQLException e) { 
     //handle the error... 
    } finally { 
     //closing the resources (always in finally block, not in the try!) 
     try { 
      if (pstmt != null) { 
       pstmt.close(); 
      } 
      if (con != null) { 
       con.close(); 
      } 
     } catch (SQLException e) { 
     } 
    } 
} 

//calling the method to execute a sql insert statement 
public void yourMethodToData(List<Object> arguments) { 
    String sql = "INSERT INTO YOUR TABLE VALUES(?)"; 
    executeSQLUpdate(sql, arguments); 
}

的Vector类实现List接口，这样你就可以通过这些方法，通过你的Vector。

作为一个侧面说明，你不应该使用Vector，而是使用与ArrayList<Object>实施List<Object>。更多信息：Why is Java Vector class considered obsolete or deprecated?

来源

2012-10-14 22:09:37

将excel代码写入数据库

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