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java中使用poi实现导入Excel
1.java中使用poi实现导入Excel
public class XlsDto {
/**
* 选课号
*/
private Integer xkh;
/**
* 学号
*/
private String xh;
/**
* 姓名
*/
private String xm;
/**
* 学院
*/
private String yxsmc;
/**
* 课程号
*/
private Integer kch;
/**
* 课程名
*/
private String kcm;
/**
* 成绩
*/
private float cj;
public Integer getXkh() {
return xkh;
}
public void setXkh(Integer xkh) {
this.xkh = xkh;
}
public String getXh() {
return xh;
}
public void setXh(String xh) {
this.xh = xh;
}
public String getXm() {
return xm;
}
public void setXm(String xm) {
this.xm = xm;
}
public String getYxsmc() {
return yxsmc;
}
public void setYxsmc(String yxsmc) {
this.yxsmc = yxsmc;
}
public Integer getKch() {
return kch;
}
public void setKch(Integer kch) {
this.kch = kch;
}
public String getKcm() {
return kcm;
}
public void setKcm(String kcm) {
this.kcm = kcm;
}
public float getCj() {
return cj;
}
public void setCj(float cj) {
this.cj = cj;
}
}
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.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
/**
*
* @author Hongten</br>
*
* 参考地址：http://hao0610.iteye.com/blog/1160678
*
*/
public class XlsMain {
/**
* 读取xls文件内容
*
* @return List<XlsDto>对象
* @throws IOException
* 输入/输出(i/o)异常
*/
private List<XlsDto> readXls() throws IOException {
InputStream is = new FileInputStream("pldrxkxxmb.xls");
HSSFWorkbook hssfWorkbook = new HSSFWorkbook(is);
XlsDto xlsDto = null;
List<XlsDto> list = new ArrayList<XlsDto>();
// 循环工作表Sheet
for (int numSheet = 0; numSheet < hssfWorkbook.getNumberOfSheets(); numSheet++) {
HSSFSheet hssfSheet = hssfWorkbook.getSheetAt(numSheet);
if (hssfSheet == null) {
continue;
}
// 循环行Row
for (int rowNum = 1; rowNum <= hssfSheet.getLastRowNum(); rowNum++) {
HSSFRow hssfRow = hssfSheet.getRow(rowNum);
if (hssfRow == null) {
continue;
}
xlsDto = new XlsDto();
// 循环列Cell
// 0学号 1姓名 2学院 3课程名 4 成绩
// for (int cellNum = 0; cellNum <=4; cellNum++) {
HSSFCell xh = hssfRow.getCell(0);
if (xh == null) {
continue;
}
xlsDto.setXh(getValue(xh));
HSSFCell xm = hssfRow.getCell(1);
if (xm == null) {
continue;
}
xlsDto.setXm(getValue(xm));
HSSFCell yxsmc = hssfRow.getCell(2);
if (yxsmc == null) {
continue;
}
xlsDto.setYxsmc(getValue(yxsmc));
HSSFCell kcm = hssfRow.getCell(3);
if (kcm == null) {
continue;
}
xlsDto.setKcm(getValue(kcm));
HSSFCell cj = hssfRow.getCell(4);
if (cj == null) {
continue;
}
xlsDto.setCj(Float.parseFloat(getValue(cj)));
list.add(xlsDto);
}
}
return list;
}
/**
* 得到Excel表中的值
*
* @param hssfCell
* Excel中的每一个格子
* @return Excel中每一个格子中的值
*/
@SuppressWarnings("static-access")
private String getValue(HSSFCell hssfCell) {
if (hssfCell.getCellType() == hssfCell.CELL_TYPE_BOOLEAN) {
// 返回布尔类型的值
return String.valueOf(hssfCell.getBooleanCellValue());
} else if (hssfCell.getCellType() == hssfCell.CELL_TYPE_NUMERIC) {
// 返回数值类型的值
return String.valueOf(hssfCell.getNumericCellValue());
} else {
// 返回字符串类型的值
return String.valueOf(hssfCell.getStringCellValue());
}
}
}
java中使用poi实现导入Excel