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("
");
            }
            System.out.println(s.toString());

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