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());

}

}

}