JAVA使用POI读取EXCEL文件的简单model

一.JAVA使用POI读取EXCEL文件的简单model

1.所需要的jar

commons-codec-1.10.jar
commons-logging-1.2.jar
junit-4.12.jar
log4j-1.2.17.jar

poi-3.7-20101029.jar
poi-examples-3.7-20101029.jar
poi-ooxml-3.7-20101029.jar
poi-ooxml-schemas-3.7-20101029.jar
poi-scratchpad-3.7-20101029.jar

poi-3.6.jar
poi-3.6-dom4j-1.6.1.jar
poi-3.6-geronimo-stax-api_1.0_spec-1.0.jar
poi-3.6-xmlbeans-2.3.0.jar
poi-3.6-ooxml-20091214.jar
poi-3.6-ooxml-schemas-20091214.jar

getPhysicalNumberOfRows()这个才是真正的行数

package poi;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;  

public class ReadExcel001 {
    public static void main(String[] args) {
        readXml("D:/test.xlsx");
        System.out.println("-------------");
        readXml("d:/test2.xls");
    }
    public static void readXml(String fileName){
        boolean isE2007 = false;    //判断是否是excel2007格式
        if(fileName.endsWith("xlsx"))
            isE2007 = true;
        try {
            InputStream input = new FileInputStream(fileName);  //建立输入流
            Workbook wb  = null;
            //根据文件格式(2003或者2007)来初始化
            if(isE2007)
                wb = new XSSFWorkbook(input);
            else
                wb = new HSSFWorkbook(input);
            Sheet sheet = wb.getSheetAt(0);     //获得第一个表单
            Iterator<Row> rows = sheet.rowIterator(); //获得第一个表单的迭代器
            while (rows.hasNext()) {
                Row row = rows.next();  //获得行数据
                System.out.println("Row #" + row.getRowNum());  //获得行号从0开始
                Iterator<Cell> cells = row.cellIterator();    //获得第一行的迭代器
                while (cells.hasNext()) {
                    Cell cell = cells.next();
                    System.out.println("Cell #" + cell.getColumnIndex());
                    switch (cell.getCellType()) {   //根据cell中的类型来输出数据
                    case HSSFCell.CELL_TYPE_NUMERIC:
                        System.out.println(cell.getNumericCellValue());
                        break;
                    case HSSFCell.CELL_TYPE_STRING:
                        System.out.println(cell.getStringCellValue());
                        break;
                    case HSSFCell.CELL_TYPE_BOOLEAN:
                        System.out.println(cell.getBooleanCellValue());
                        break;
                    case HSSFCell.CELL_TYPE_FORMULA:
                        System.out.println(cell.getCellFormula());
                        break;
                    default:
                        System.out.println("unsuported sell type");
                    break;
                    }
                }
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
}  

个人实例

commons-logging-1.1.jar
dom4j-1.6.1.jar
fastjson-1.1.37.jar
geronimo-stax-api_1.0_spec-1.0.jar
junit-3.8.1.jar
log4j-1.2.13.jar
poi-3.9-20121203.jar
poi-examples-3.7-20101029.jar
poi-ooxml-3.7-20101029.jar
poi-ooxml-schemas-3.7-20101029.jar
poi-scratchpad-3.7-20101029.jar
xmlbeans-2.3.0.jar

 package file;

 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;

 import org.apache.poi.hssf.usermodel.HSSFCell;
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
 import org.apache.poi.xssf.usermodel.XSSFWorkbook;

 public class excel2sql {
     public static void main(String[] args) {
         readXml("D:/cxx.xlsx");
     }

     public static void readXml(String fileName) {
         boolean isE2007 = false; // 判断是否是excel2007格式
         if (fileName.endsWith("xlsx"))
             isE2007 = true;
         try {
             InputStream input = new FileInputStream(fileName); // 建立输入流
             Workbook wb = null;
             // 根据文件格式(2003或者2007)来初始化
             if (isE2007) {
                 wb = new XSSFWorkbook(input);
             } else {
                 wb = new HSSFWorkbook(input);
             }

             String[][] arrayString = null;
             // for (int k = 0; k < wb.getNumberOfSheets(); k++) {
             for (int k = 0; k < 1; k++) {
                 Sheet sheet = wb.getSheetAt(k);
                 for (int i = 0; i < sheet.getPhysicalNumberOfRows(); i++) {
                     Row row = sheet.getRow(i);
                     for (int j = 0; j < row.getPhysicalNumberOfCells(); j++) {
                         if (i == 0 && j == 0) {
                             int rowNum = sheet.getPhysicalNumberOfRows();
                             int columnNum = row.getPhysicalNumberOfCells();
                             arrayString = new String[rowNum][columnNum];
                         }

                         Cell cell = row.getCell(j);
                         switch (cell.getCellType()) {
                         case HSSFCell.CELL_TYPE_NUMERIC:
                             arrayString[i][j] = String.valueOf(cell
                                     .getNumericCellValue());
                             break;
                         case HSSFCell.CELL_TYPE_STRING:
                             arrayString[i][j] = cell.getStringCellValue();
                             break;
                         case HSSFCell.CELL_TYPE_BOOLEAN:
                             arrayString[i][j] = String.valueOf(cell
                                     .getBooleanCellValue());
                             break;
                         case HSSFCell.CELL_TYPE_FORMULA:
                             arrayString[i][j] = String.valueOf(cell
                                     .getCellFormula());
                             break;
                         default:
                             arrayString[i][j] = "";
                             break;
                         }
                     }
                 }
             }

             StringBuffer s = new StringBuffer();
             for(int i =0;i<arrayString.length;i++)
             {
                 String[] row = arrayString[i];
                 s.append("insert into table(name,sex,address) values(");
                 for(int j = 0; j < row.length; j++)
                 {
                     if(j==0)
                     {
                         s.append(row[j]);
                     }else
                     {
                         s.append(",").append(row[j]);
                     }
                 }
                 s.append(");");
                 s.append("\n");
             }
             System.out.println(s.toString());

         } catch (IOException ex) {
             ex.printStackTrace();
         }
     }
 }