如何将excel文件数据保存到mysql数据库表中作为记录使用apache POI记录

Question

我无法将excel文件信息存储到数据库表中。任何人都可以帮助我如何将文件数据保存到具有不同数据类型（如bigint，varchar和date）的表中。在这里，我提供了将excel文件按记录保存到数据库记录的程序？

import java.io.*; 
import org.apache.poi.hssf.usermodel.HSSFWorkbook; 
import org.apache.poi.hssf.usermodel.HSSFSheet; 
import org.apache.poi.ss.usermodel.*; 
import org.apache.poi.xssf.usermodel.XSSFSheet; 
import org.apache.poi.xssf.usermodel.XSSFWorkbook; 
import java.util.*; 
import java.sql.*; 

public class XLToDB { 

    public static final String INSERT_RECORDS = "INSERT INTO RECORDS" + "(SNO, ID, NAME, VALUE1, VALUE2, VALUE3, VALUE4, VALUE5) VALUES" + "(?,?,?,?,?,?,?,?)"; 
    private static String GET_COUNT = "SELECT COUNT(*) FROM RECORDS"; 

    public static void main(String[] args) throws Exception{ 
     XLToDB obj = new XLToDB(); 
     obj.insertRecords("E:/test.xlsx"); 



    } 
      public void insertRecords(String filePath){ 

      /* Create Connection objects */ 
     Connection con = null; 
     PreparedStatement prepStmt = null; 
     java.sql.Statement stmt = null; 
     int count = 0; 
     ArrayList<String> mylist = new ArrayList<String>(); 

     try{ 
      con = DBHelper.getConnection(); 
      System.out.println("Connection :: ["+con+"]"); 
      prepStmt = con.prepareStatement(INSERT_RECORDS); 
      stmt = con.createStatement(); 
      ResultSet result = stmt.executeQuery(GET_COUNT); 
      while(result.next()) { 

       int val = result.getInt(1); 
       System.out.println(val); 
       count = val+1; 

      } 


      prepStmt.setInt(1,count); 

      /* We should now load excel objects and loop through the worksheet data */ 
      FileInputStream fis = new FileInputStream(new File(filePath)); 
      /* Load workbook */ 
      XSSFWorkbook workbook = new XSSFWorkbook (fis); 
      /* Load worksheet */ 
      XSSFSheet sheet = workbook.getSheetAt(0); 
       // we loop through and insert data 
      Iterator ite = sheet.rowIterator(); 

       while(ite.hasNext()) { 
         Row row = (Row) ite.next(); 
         Iterator<Cell> cellIterator = row.cellIterator(); 
           while(cellIterator.hasNext()) { 
             Cell cell = cellIterator.next(); 
             switch(cell.getCellType()) { 
             case Cell.CELL_TYPE_STRING: //handle string columns 
               prepStmt.setString(1, cell.getStringCellValue());                      
               break; 
             case Cell.CELL_TYPE_NUMERIC: //handle double data 
               prepStmt.setDouble(2,cell.getNumericCellValue()); 
               break; 
             }          
           } 
       //we can execute the statement before reading the next row 
       prepStmt.executeUpdate(); 
       } 
       /* Close input stream */ 
       fis.close(); 
       /* Close prepared statement */ 
       prepStmt.close(); 
       /* COMMIT transaction */ 
       con.commit(); 
       /* Close connection */ 
       con.close(); 

     }catch(Exception e){ 
      e.printStackTrace();    
     } 

     } 
} 

Answer 1

import java.io.*; 

    import org.apache.poi.hssf.usermodel.HSSFWorkbook; 
    import org.apache.poi.hssf.usermodel.HSSFSheet; 
    import org.apache.poi.ss.usermodel.*; 
    import org.apache.poi.xssf.usermodel.XSSFSheet; 
    import org.apache.poi.xssf.usermodel.XSSFWorkbook; 

    import java.util.*; 
    import java.sql.*; 

    public class XLToDB { 

     public static final String INSERT_RECORDS = "INSERT INTO RECORDS(ID, NAME, VALUE1, VALUE2, VALUE3, VALUE4, VALUE5) VALUES(?,?,?,?,?,?,?)"; 
     private static String GET_COUNT = "SELECT COUNT(*) FROM RECORDS"; 

     public static void main(String[] args) throws Exception{ 
      XLToDB obj = new XLToDB(); 
      obj.insertRecords("E:/test.xlsx"); 



     } 
       public void insertRecords(String filePath){ 

       /* Create Connection objects */ 
      Connection con = null; 
      PreparedStatement prepStmt = null; 
      java.sql.Statement stmt = null; 
      int count = 0; 
      ArrayList<String> mylist = new ArrayList<String>(); 

      try{ 
       con = DBHelper.getConnection(); 
       System.out.println("Connection :: ["+con+"]"); 
       prepStmt = con.prepareStatement(INSERT_RECORDS); 
       stmt = con.createStatement(); 
       ResultSet result = stmt.executeQuery(GET_COUNT); 
       while(result.next()) { 

        int val = result.getInt(1); 
        System.out.println(val); 
        count = val+1; 

       } 


       //prepStmt.setInt(1,count); 

       /* We should now load excel objects and loop through the worksheet data */ 
       FileInputStream fis = new FileInputStream(new File(filePath)); 
       System.out.println("FileInputStream Object created..! "); 
       /* Load workbook */ 
       XSSFWorkbook workbook = new XSSFWorkbook (fis); 
       System.out.println("XSSFWorkbook Object created..! "); 
       /* Load worksheet */ 
       XSSFSheet sheet = workbook.getSheetAt(0); 
       System.out.println("XSSFSheet Object created..! "); 
        // we loop through and insert data 
       Iterator ite = sheet.rowIterator(); 
       System.out.println("Row Iterator invoked..! "); 

        while(ite.hasNext()) { 
          Row row = (Row) ite.next(); 
          System.out.println("Row value fetched..! "); 
          Iterator<Cell> cellIterator = row.cellIterator(); 
          System.out.println("Cell Iterator invoked..! "); 
          int index=1; 
            while(cellIterator.hasNext()) { 

              Cell cell = cellIterator.next(); 
              System.out.println("getting cell value..! "); 

              switch(cell.getCellType()) { 
              case Cell.CELL_TYPE_STRING: //handle string columns 
                prepStmt.setString(index, cell.getStringCellValue());                      
                break; 
              case Cell.CELL_TYPE_NUMERIC: //handle double data 
               int i = (int)cell.getNumericCellValue(); 
               prepStmt.setInt(index, (int) cell.getNumericCellValue()); 
                break; 
              } 
              index++; 



            } 
        //we can execute the statement before reading the next row 
        prepStmt.executeUpdate(); 
        } 
        /* Close input stream */ 
        fis.close(); 
        /* Close prepared statement */ 
        prepStmt.close(); 

        /* Close connection */ 
        con.close(); 

      }catch(Exception e){ 
       e.printStackTrace();    
      } 

      } 
    } 


my excel is like below 

101 Mobiles 10 10 10 10 10 
102 Batteries 20 21 22 20 56 
103 Watches 25 242 52 55 28 
104 Keyboards 10 11 12 12 12 
105 Pens 5 5 5 5 3 
-----------------------------------> 
in my database it saves in this direction[--------------------->>>]