poi创建下拉框

package finance.tools.salesperformance.apv.util;

import java.io.FileOutputStream;

import org.apache.poi.hssf.usermodel.DVConstraint;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFDataValidation;
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.hssf.util.CellRangeAddressList;

/** 
 * poi创建下拉框 
 * @author Henry 
 */  
public class PoiCheckBox97  
{  
    public static void main(String[] args)  
    {  
        String[] list = { "JAVA", "C", "易语言", "GO" };  
        new PoiCheckBox97().createListBox(list);  
        return;  
    }  
    public void createListBox(String[] list)  
    {  
        // 文件初始化  
        HSSFWorkbook wb = new HSSFWorkbook();  
        HSSFSheet sheet = wb.createSheet("new sheet");  
        // 在第一行第一个单元格，插入下拉框  
        HSSFRow row = sheet.createRow(0);  
        HSSFCell cell = row.createCell(0);  
        // 普通写入操作  
        cell.setCellValue("请选择");// 这是实验  
        // 生成下拉列表  
        // 对（row0,rowMax,col0,colMax）所有单元格有效  
        CellRangeAddressList regions = new CellRangeAddressList(0, 1, 0, 1);  
        // 生成下拉框内容  
        DVConstraint constraint = DVConstraint  
                .createExplicitListConstraint(list);  
        // 绑定下拉框和作用区域  
        HSSFDataValidation data_validation = new HSSFDataValidation(regions,  
                constraint);  
        // 对sheet页生效  
        sheet.addValidationData(data_validation);  
        // 写入文件  
        FileOutputStream fileOut;  
        try {  
            fileOut = new FileOutputStream("d:/workbook.xls");  
            wb.write(fileOut);  
            fileOut.close();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
        // 结束  
        System.out.println("Over");  
    }  
}