JDBC+Struct2如何使用POI实现对Excel数据的读取并导入Sql 数据库中

POI怎么用，问google
拼SQL语句，字符串连接而已，还用问吗？
JDBC怎么用，问google

这个链接有源码，http://www.cnblogs.com/hongten/archive/2012/02/22/java2poi.html

这个是导入的http://www.cnblogs.com/xwdreamer/archive/2012/02/22/2363152.html

网上随便找找有很多的吧,能从excel获取数据了后面保存到数据库就很简单了吧,

网上查下poi 如何读取excel

我其实就是Dao层和Service层不知道咋写

package org.cupd.spdb.report.importexcel.dao.impl;import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.cupd.spdb.report.importexcel.dao.CardBinDao;import com.websurf.spdb.bo.DBConnBOImpl;public class CardBinDaoImpl implements CardBinDao {

private static final Log log=LogFactory.getLog(CardBinDaoImpl.class);
private static DBConnBOImpl dbConn = new DBConnBOImpl();

PreparedStatement ps = null;
Connection conn = null;
ResultSet rs = null;
private String filePath="E:\\Microsoft Excel.xlsx";
public boolean insertDB(){
   boolean flag=true;
    try {
     //文件流指向excel文件
    // FileInputStream fin=new FileInputStream(filePath);
     XSSFWorkbook workbook=new XSSFWorkbook(filePath);//创建工作薄
     XSSFSheet sheet=workbook.getSheetAt(0);//得到工作表
     XSSFRow row=null;//对应excel的行
     XSSFCell cell=null;//对应excel的列

     int totalRow=sheet.getLastRowNum();//得到excel的总记录条数
     log.info("得到excel的总记录数"+totalRow);
     //以下的字段一一对应数据库表的字段
String cardName="";
String cardType="";
String cardBin="";
String cardLength="";
String activityCode="";
String note="";

     String sql ="insert into BizCardBin(cardName,cardType,cardBin,cardLength,activityCode,note) values(?,?,?,?,?,?)";

     for(int i=2;i<=totalRow;i++){
      row=sheet.getRow(i);
      cell=row.getCell((short) 0);
      cardName=cell.getStringCellValue().toString();
      cell=row.getCell((short) 1);
      cardType=cell.getStringCellValue().toString();
      cell=row.getCell((short) 2);
      cardBin=cell.getStringCellValue().toString();
      cell=row.getCell((short) 3);
      cardLength=cell.getStringCellValue().toString();
      cell=row.getCell((short) 4);
      activityCode=cell.getStringCellValue().toString();
      cell=row.getCell((short) 5);
      note=cell.getStringCellValue().toString();      ps=conn.prepareStatement(sql);
     ps.setString(1,cardName);
     ps.setString(2,cardType);
     ps.setString(3,cardBin);
     ps.setString(4,cardLength);
     ps.setString(5,activityCode);
     ps.setString(6,note);

     ps.execute();
     System.out.println("preparestatement successful");
     }
      dbConnClose(conn, dbConn);
psClose(ps, rs);

    } catch (FileNotFoundException e) {
     flag=false;
     e.printStackTrace();
    } catch(IOException ex){
     flag=false;
      ex.printStackTrace();
    } catch(SQLException exx){
     flag=false;
     exx.printStackTrace();
    }

   return flag;
}
public static void main(String[] args) {
CardBinDaoImpl e=new CardBinDaoImpl();
e.insertDB();
}


    /**
     * 插入数据只需要传入插入sql即可
     * 插入sql的样例:insert into t_department values('D004','金融部');
     * @param insert 插入语句
     * @return
     * @throws SQLException
     */
/*public int insertCardBin(BizCardBin cardBin){
int result=0;
PreparedStatement ps = null;
Connection conn = null;
String sql ="insert into BizCardBin(cardName,cardTyoe,cardBin,cardLength,cardLength,activityCode,note) values(?,?,?,?,?,?,?)";
try {
conn=dbConn.getConnection();
log.info("获取JDBC连接完成");
ps = conn.prepareStatement(sql);
ps.setString(1, cardBin.getCardName());
ps.setString(2, cardBin.getCardType());
ps.setString(3, cardBin.getCardBin());
ps.setString(4, cardBin.getCardLength());
ps.setString(5, cardBin.getActivityCode());
ps.setString(6, cardBin.getNote());
result = ps.executeUpdate();
} catch (SQLException e) {
// TODO Auto-generated catch block
log.error("SQL Exception "+ e);
e.printStackTrace();
return 0;
}finally{
dbConnClose(conn, dbConn);
psClose(ps, rs);
}
return result;
}
*/

public void dbConnClose(Connection conn,DBConnBOImpl dbConn){
if(conn!=null){
dbConn.close(conn);
}
}

private static void psClose(final PreparedStatement preparedStatement,
final ResultSet resultSet) {
try {
if (resultSet != null) {
resultSet.close();
}
if (preparedStatement != null) {
preparedStatement.close();
}
} catch (SQLException e) {
log.error("error", e);
}
}

}

package org.cupd.spdb.report.importexcel.dao.impl;import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
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 CardBinImportExcel {
private POIFSFileSystem fs;
    private HSSFWorkbook wb;
    private HSSFSheet sheet;
    private HSSFRow row;    /**
     * 读取Excel表格表头的内容
     * @param InputStream
     * @return String 表头内容的数组
     */
    @SuppressWarnings("deprecation")
public String[] readExcelTitle(InputStream is) {
        try {
            fs = new POIFSFileSystem(is);
            wb = new HSSFWorkbook(fs);
        } catch (IOException e) {
            e.printStackTrace();
        }
        sheet = wb.getSheetAt(0);
        row = sheet.getRow(0);
        // 标题总列数
        int colNum = row.getPhysicalNumberOfCells();
        System.out.println("colNum:" + colNum);
        String[] title = new String[colNum];
        for (int i = 0; i < colNum; i++) {
            //title[i] = getStringCellValue(row.getCell((short) i));
            title[i] = getCellFormatValue(row.getCell((short) i));
        }
        return title;
    }    /**
     * 读取Excel数据内容
     * @param InputStream
     * @return Map 包含单元格数据内容的Map对象
     */
    @SuppressWarnings("deprecation")
public Map<Integer, String> readExcelContent(InputStream is) {
        Map<Integer, String> content = new HashMap<Integer, String>();
        String excelStr = "";
        try {
            fs = new POIFSFileSystem(is);
            wb = new HSSFWorkbook(fs);
        } catch (IOException e) {
            e.printStackTrace();
        }
        sheet = wb.getSheetAt(0);
        // 得到总行数
        int rowNum = sheet.getLastRowNum();
        row = sheet.getRow(0);
        int colNum = row.getPhysicalNumberOfCells();
        // 正文内容应该从第二行开始,第一行为表头的标题
        for (int i = 1; i <= rowNum; i++) {
            row = sheet.getRow(i);
            int j = 0;
            while (j < colNum) {
                // 每个单元格的数据内容用"-"分割开，以后需要时用String类的replace()方法还原数据
                // 也可以将每个单元格的数据设置到一个javabean的属性中，此时需要新建一个javabean
                // str += getStringCellValue(row.getCell((short) j)).trim() +
                // "-";
                     excelStr += getStringCellValue
                           (row.getCell((short) j)).trim() + "&";
                     j++;
                 }
                 content.put(i, excelStr);
                 excelStr = "";
        }
        return content;
    }    /**
     * 获取单元格数据内容为字符串类型的数据
     *
     * @param cell Excel单元格
     * @return String 单元格数据内容
     */
    @SuppressWarnings("unused")
private String getStringCellValue(HSSFCell cell) {
        String strCell = "";
        switch (cell.getCellType()) {
        case HSSFCell.CELL_TYPE_STRING:
            strCell = cell.getStringCellValue();
            break;
        case HSSFCell.CELL_TYPE_NUMERIC:
            strCell = String.valueOf(cell.getNumericCellValue());
            break;
        case HSSFCell.CELL_TYPE_BOOLEAN:
            strCell = String.valueOf(cell.getBooleanCellValue());
            break;
        case HSSFCell.CELL_TYPE_BLANK:
            strCell = "";
            break;
        default:
            strCell = "";
            break;
        }
        if (strCell.equals("") || strCell == null) {
            return "";
        }
        if (cell == null) {
            return "";
        }
        return strCell;
    }    /**
     * 获取单元格数据内容为日期类型的数据
     *
     * @param cell
     *            Excel单元格
     * @return String 单元格数据内容
     */
    @SuppressWarnings({ "unused", "deprecation" })
private String getDateCellValue(HSSFCell cell) {
        String result = "";
        try {
            int cellType = cell.getCellType();
            if (cellType == HSSFCell.CELL_TYPE_NUMERIC) {
                Date date = cell.getDateCellValue();
                result = (date.getYear() + 1900) + "-" + (date.getMonth() + 1)
                        + "-" + date.getDate();
            } else if (cellType == HSSFCell.CELL_TYPE_STRING) {
                String date = getStringCellValue(cell);
                result = date.replaceAll("[年月]", "-").replace("日", "").trim();
            } else if (cellType == HSSFCell.CELL_TYPE_BLANK) {
                result = "";
            }
        } catch (Exception e) {
            System.out.println("日期格式不正确!");
            e.printStackTrace();
        }
        return result;
    }    /**
     * 根据HSSFCell类型设置数据
     * @param cell
     * @return
     */
    private String getCellFormatValue(HSSFCell cell) {
        String cellvalue = "";
        if (cell != null) {
            // 判断当前Cell的Type
            switch (cell.getCellType()) {
            // 如果当前Cell的Type为NUMERIC
            case HSSFCell.CELL_TYPE_NUMERIC:
            case HSSFCell.CELL_TYPE_FORMULA: {
                // 判断当前的cell是否为Date
                if (HSSFDateUtil.isCellDateFormatted(cell)) {
                    // 如果是Date类型则，转化为Data格式

                    //方法1：这样子的data格式是带时分秒的：2011-10-12 0:00:00
                    //cellvalue = cell.getDateCellValue().toLocaleString();

                    //方法2：这样子的data格式是不带带时分秒的：2011-10-12
                    Date date = cell.getDateCellValue();
                    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
                    cellvalue = sdf.format(date);

                }
                // 如果是纯数字
                else {
                    // 取得当前Cell的数值
                    cellvalue = String.valueOf(cell.getNumericCellValue());
                }
                break;
            }
            // 如果当前Cell的Type为STRIN
            case HSSFCell.CELL_TYPE_STRING:
                // 取得当前的Cell字符串
                cellvalue = cell.getRichStringCellValue().getString();
                break;
            // 默认的Cell值
            default:
                cellvalue = " ";
            }
        } else {
            cellvalue = "";
        }
        return cellvalue;    }    public static void main(String[] args) {
        try {
            // 对读取Excel表格标题测试
            InputStream is = new FileInputStream("E:\\Microsoft Excel.xlsx");
            CardBinImportExcel excelReader = new CardBinImportExcel();
            String[] title = excelReader.readExcelTitle(is);
            System.out.println("获得Excel表格的标题:");
            for (String s : title) {
                System.out.print(s + " ");
            }            // 对读取Excel表格内容测试
            InputStream is2 = new FileInputStream("E:\\Microsoft Excel.xlsx");
            Map<Integer, String> map = excelReader.readExcelContent(is2);
            System.out.println("获得Excel表格的内容:");
            for (int i = 1; i <= map.size(); i++) {
                System.out.println(map.get(i));
            }        } catch (FileNotFoundException e) {
            System.out.println("未找到指定路径的文件!");
            e.printStackTrace();
        }
    }
}

可以去这地址下载，有源代码，挺好使的，导入myclipse即可
希望能帮到你
http://download.csdn.net/detail/holdon521/6876403

调试易

JDBC+Struct2如何使用POI实现对Excel数据的读取并导入Sql 数据库中

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