/**
*
*/
package test.excel;
/**
* @author seven
*2013-4-11上午09:15:23
*/
import java.io.FileOutputStream;
import java.util.Date;
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;
public class POI
{
public static void main(String[] args)
{
String[] list = { "東軟", "華信", "SAP", "海輝" };
new POI().createListBox(list);
return;
}
public void createListBox(String[] list)
{
// 文件初始化
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("new sheet");
// 在第一行第一個單元格,插入下拉框
HSSFRow row = sheet.createRow(0);
HSSFCell cell = row.createCell(0);
// 普通寫入操作
cell.setCellValue("請選擇");// 這是實驗
// 生成下拉列表
// 只對(0,0)單元格有效
CellRangeAddressList regions = new CellRangeAddressList(0, 0, 0, 0);
// 生成下拉框內容
DVConstraint constraint = DVConstraint
.createExplicitListConstraint(list);
// 綁定下拉框和作用區域
HSSFDataValidation data_validation = new HSSFDataValidation(regions,
constraint);
// 對sheet頁生效
sheet.addValidationData(data_validation);
// 寫入文件
FileOutputStream fileOut;
try {
fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 結束
System.out.println("Over");
}
}
POI操作Excel,創建下拉框
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