导入导出EXCEL数据（jsp+ssh）

1. 首先搭建ssh框架（这儿不做介绍）；
2. 导入jar包（如下）:
          commons-fileupload-1.2.1.jar
          commons-io-1.3.2.jar
          commons-logging-1.1.jar
          dom4j-1.6.1.jar
          freemarker-2.3.13.jar
          ognl-2.6.11.jar
          ooxml-schemas-1.0.jar
          poi-3.5-beta6-20090622.jar
          poi-contrib-3.5-beta6-20090622.jar
          poi-ooxml-3.5-beta6-20090622.jar
          poi-scratchpad-3.5-beta6-20090622.jar
          proxool-0.8.3.jar
          struts2-core-2.1.6.jar
          xmlbeans-2.3.0.jar
          xwork-2.1.2.jar
3. 导出：（下面以一个例子的形式）
       1. 新创建一个jsp页面如（export.jsp）,在页面上添加如下代码：
        [url=<%=path %>/indexAction!export.action]导出数据到excel[/url]
       2. 进入indexAction.java文件，编写export方法由于要用到一个STUDENT类，就先编写STUDENT类，Student类代码如下：
public class Student {
private String studentId;
private String studentName;
private String studentSex;
private String studentDormitory;
private  String studentSept;
public String getStudentId() {
return studentId;
}
public void setStudentId(String studentId) {
this.studentId = studentId;
}
public String getStudentName() {
return studentName;
}
public void setStudentName(String studentName) {
this.studentName = studentName;
}
public String getStudentSex() {
return studentSex;
}
public void setStudentSex(String studentSex) {
this.studentSex = studentSex;
}
public String getStudentDormitory() {
return studentDormitory;
}
public void setStudentDormitory(String studentDormitory) {
this.studentDormitory = studentDormitory;
}
public String getStudentSept() {
return studentSept;
}
public void setStudentSept(String studentSept) {
this.studentSept = studentSept;
}

}
编写export方法：代码如下
  /**
* 导出数据到excel
* @return
* @throws Exception
*/
public String export()throws Exception
{  

/**
*如果是从数据库里面取数据，就让studentList=取数据的函数：
*就没必要下面的for循环
             *我下面的for循环就是手动给studentList赋值
             */
List studentList=new ArrayList<Student>();//学生LIst

for(int i=0;i<10;i++)
{   Student student=new Student();//学生对象
student.setStudentId("200908110"+i);
student.setStudentName("杨波"+i);
student.setStudentSex("男");
student.setStudentDormitory("14-20"+i);
student.setStudentSept("软件工程系");
studentList.add(student);
}
             /*设置表头：对Excel每列取名
              *(必须根据你取的数据编写)
              */
String []tableHeader={"学号","姓名","性别","寝室号","所在系"};
/*
             *下面的都可以拷贝不用编写
             */
short cellNumber=(short)tableHeader.length;//表的列数
HSSFWorkbook workbook = new HSSFWorkbook(); //创建一个excel
HSSFCell cell = null; //Excel的列
HSSFRow row = null; //Excel的行
HSSFCellStyle style = workbook.createCellStyle(); //设置表头的类型
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
HSSFCellStyle style1 = workbook.createCellStyle(); //设置数据类型
style1.setAlignment(HSSFCellStyle.ALIGN_CENTER);
HSSFFont font = workbook.createFont(); //设置字体
HSSFSheet sheet = workbook.createSheet("sheet1"); //创建一个sheet
HSSFHeader header = sheet.getHeader();//设置sheet的头
try {              /**
                     *根据是否取出数据，设置header信息
                     *
                     */
if(studentList.size() < 1 ){
header.setCenter("查无资料");
}else{
header.setCenter("学生表");
row = sheet.createRow(0);
row.setHeight((short)400);
for(int k = 0;k < cellNumber;k++){
cell = row.createCell(k);//创建第0行第k列
cell.setCellValue(tableHeader[k]);//设置第0行第k列的值
sheet.setColumnWidth(k,8000);//设置列的宽度
font.setColor(HSSFFont.COLOR_NORMAL); // 设置单元格字体的颜色.
font.setFontHeight((short)350); //设置单元字体高度
style1.setFont(font);//设置字体风格
cell.setCellStyle(style1);
}
                        /*
                         * // 给excel填充数据这里需要编写
                         *    
                         */
for(int i = 0 ;i < studentList.size() ;i++){   
Student student1 = (Student)studentList.get(i);//获取student对象
    row = sheet.createRow((short) (i + 1));//创建第i+1行
    row.setHeight((short)400);//设置行高
   
    if(student1.getStudentId() != null){
    cell = row.createCell(0);//创建第i+1行第0列
    cell.setCellValue(student1.getStudentId());//设置第i+1行第0列的值
cell.setCellStyle(style);//设置风格
    }
    if(student1.getStudentName() != null){
    cell = row.createCell(1); //创建第i+1行第1列

    cell.setCellValue(student1.getStudentName());//设置第i+1行第1列的值

    cell.setCellStyle(style); //设置风格
    }
//由于下面的和上面的基本相同，就不加注释了
    if(student1.getStudentSex() != null){
    cell = row.createCell(2);
    cell.setCellValue(student1.getStudentSex());
    cell.setCellStyle(style);
    }
    if(student1.getStudentDormitory()!= null){
    cell = row.createCell(3);
    cell.setCellValue(student1.getStudentDormitory());
    cell.setCellStyle(style);
    }
    if(student1.getStudentSept() != null){
    cell = row.createCell(4);
    cell.setCellValue(student1.getStudentSept());
    cell.setCellStyle(style);
    }
   
}

}

} catch (Exception e) {
e.printStackTrace();
}

  /*
   *下面的可以不用编写，直接拷贝
   *
   */
HttpServletResponse response = null;//创建一个HttpServletResponse对象
OutputStream out = null;//创建一个输出流对象
try {
response = ServletActionContext.getResponse();//初始化HttpServletResponse对象
out = response.getOutputStream();//
        response.setHeader("Content-disposition","attachment; filename="+"student.xls");//filename是下载的xls的名，建议最好用英文
        response.setContentType("application/msexcel;charset=UTF-8");//设置类型
        response.setHeader("Pragma","No-cache");//设置头
        response.setHeader("Cache-Control","no-cache");//设置头
        response.setDateHeader("Expires", 0);//设置日期头
        workbook.write(out);
        out.flush();
workbook.write(out);
} catch (IOException e) {
e.printStackTrace();
}finally{
try{

if(out!=null){
out.close();
}

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

}

return null;
}
注：最好返回null,否则有可能报错。
4.数据的导入（以例子的形式展示）
    1.jsp页面的编写：在页面上添加如下代码
其中action可以自己编写，table标签的内容可以不要。（DEMO页面添加TABLE标签主要是展示导入效果）
    <s:form action="indexAction!importExcel.action" method="post" enctype="multipart/form-data" theme="simple">

<td>
<s:file name="excelFile" id="excelFile" cssStyle="width:160px"></s:file>//选择导入的文件
</td>
<td>
<input type="submit" value="导入学生数据"/>
</td>
</s:form>
//下面是展示导入效果
<table>
<th>学号</th><th>姓名</th><th>性别</th><th>寝室号</th><th>所在系</th>
<s:iterator value="stuList">
<tr>
<td>
<s:property value="studentId"/>
</td>
<td>
<s:property value="studentName"/>
</td>
<td>
<s:property value="studentSex"/>
</td>
<td>
<s:property value="studentDormitory"/>
</td>
<td>
<s:property value="studentSept"/>
</td>
</tr>
</s:iterator>
</table>
2.strus.xml编写（如果要展示效果，DEMo就编写的返回的页面如下）
   <action name="indexAction" class="com.dev.iex.action.IndexAction">
            <result name="SUCCESS">/index.jsp</result>
   </action>
3. java代码如下
在indexAction中添加 
     Import的类：
       import java.io.File;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletResponse;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFHeader;
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.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.struts2.ServletActionContext;
import com.dev.iex.po.Student;
  定义的的变量：
private File excelFile;//File对象，目的是获取页面上传的文件
private  List<Student> stuList=new ArrayList<Student>();
定义的方法：
public File getExcelFile() {
return excelFile;
}
public void setExcelFile(File excelFile) {
this.excelFile = excelFile;
}
public List<Student> getStuList() {
return stuList;
}
public void setStuList(List<Student> stuList) {
this.stuList = stuList;
}

主要编写的是importExcel方法，如下：
/*********
*
* 导入Excel数据
* @return
* @throws Exception
*/
@SuppressWarnings("finally")
public String importExcel()throws Exception
{        
     /*
      *为了方便，定义从Excel中获取数据的相应的变量
      *
      */
String id=null;
String name=null;
String  sex=null;
String  Dormitory=null;
String Sept=null;
     /*
      *2007版的读取方法
*以下可以直接拷贝，不用修改
      */
Workbook workbook = null;
int k=0;
int flag = 0;   //指示指针所访问的位置
if(excelFile!=null)
{
String path=excelFile.getAbsolutePath();//获取文件的路径
try {
        workbook = new XSSFWorkbook(path);//初始化workbook对象
        for (int numSheets = 0; numSheets < workbook.getNumberOfSheets(); numSheets++) {  //读取每一个sheet 
        System.out.println("2007版进入读取sheet的循环");
            if (null != workbook.getSheetAt(numSheets)) {   
                XSSFSheet aSheet = (XSSFSheet)workbook.getSheetAt(numSheets);//定义Sheet对象
                for (int rowNumOfSheet = 0; rowNumOfSheet <= aSheet.getLastRowNum(); rowNumOfSheet++) { 
                   //进入当前sheet的行的循环  
                    if (null != aSheet.getRow(rowNumOfSheet)) {
                        XSSFRow  aRow = aSheet.getRow(rowNumOfSheet); //定义行，并赋值
                        for (int cellNumOfRow = 0; cellNumOfRow <= aRow.getLastCellNum(); cellNumOfRow++)
                        { //读取rowNumOfSheet值所对应行的数据 
                        XSSFCell  xCell = aRow.getCell(cellNumOfRow); //获得行的列数 //获得列值  
                    //System.out.println("type="+xCell.getCellType());
                        if (null != aRow.getCell(cellNumOfRow))
                        {
                       
                            if(rowNumOfSheet == 0)
                            { // 如果rowNumOfSheet的值为0，则读取表头，判断excel的格式和预定格式是否相符             
                               if(xCell.getCellType() == XSSFCell .CELL_TYPE_NUMERIC)
                               {
                           
                                 }else if(xCell.getCellType() == XSSFCell .CELL_TYPE_BOOLEAN)
                                 {
                               
                                 }else if(xCell.getCellType() == XSSFCell .CELL_TYPE_STRING)
                                 {
                                if(cellNumOfRow == 0)
                                {
/*
*一下根据从Excel的各列命名是否符合要求：如下面匹配：学号，姓名，性别，寝室号，所*在系
*
*/
                                if(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("学号"))
                                {
           flag++;
                                }else{
                                  System.out.println("错误：第一行的学号不符合约定格式");
                                }
                                }else if(cellNumOfRow == 1)
                                {
                                if(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("姓名"))
                                {
                                flag++;
                                }else{
                                System.out.println("错误：第一行的姓名不符合约定格式");
                                }        
           }else if(cellNumOfRow == 2)
           {
           if(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("性别")){
           flag++;
          
           }else{
           System.out.println("第一行的性别不符合约定格式");
}
          
           }else if (cellNumOfRow == 3) {
           if(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("寝室号"))
           {
           flag++;
           System.out.println("=========flag:" + flag);
           }else{
           System.out.println("第一行的寝室号不符合约定格式");
}
          
           }else if (cellNumOfRow == 4)
{
           if(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("所在系")){
           flag++;
           System.out.println("=========flag:" + flag);
           }else{
           System.out.println("第一行的所在系不符合约定格式");
}
}
  }
}
else {
                           
//rowNumOfSheet != 0 即开始打印内容
/**************************************************************
  获取excel中每列的值，并赋予相应的变量，如下的赋值的ID，name,sex, Dormitory,sept;

******************************************************************
if(xCell.getCellType() == XSSFCell .CELL_TYPE_NUMERIC){ //为数值型  
if(cellNumOfRow == 0){
id = String.valueOf(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
if(id == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的学号不能为空");
}
}else if(cellNumOfRow == 1){
name = String.valueOf(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
if(name == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的姓名不能为空");
}
}else if(cellNumOfRow == 2){
sex = String.valueOf(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
if(sex == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的性别不能为空");
}                            
}else if (cellNumOfRow == 3){ Dormitory = String.valueOf(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
                            if(Dormitory == null){
                                System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的寝室号不能为空");
                                }
                            }else if (cellNumOfRow == 4){ //备案时间
                            Sept = String.valueOf(xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
                            if(Sept == null){                     
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的所在系不能为空");
                                }
                           
                            }                    
                            }else if(xCell.getCellType() == XSSFCell .CELL_TYPE_STRING){  //为字符串型 
                            System.out.println("===============进入XSSFCell .CELL_TYPE_STRING模块============");
                            if(cellNumOfRow == 0){
                            id = xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(id == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的学号不能为空");
                            }
                            }else if(cellNumOfRow == 1){
                            name = xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(name == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的姓名不能为空");
                            }
                            }else if(cellNumOfRow == 2){
                            sex = xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(sex == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的性别不能为空");
                            }                            
                            }else if (cellNumOfRow == 3){ //备案单位
                            Dormitory =xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(Dormitory == null){
                                System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的寝室号不能为空");
                                }
                            }else if (cellNumOfRow == 4){ //备案时间
                            Sept =xCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(Sept == null){                     
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的所在系不能为空");
                                }
                            }     
                                }else if (xCell.getCellType() == XSSFCell .CELL_TYPE_BLANK) {
                                System.out.println("提示：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的值为空，请查看核对是否符合约定要求");
                                }
                              }
                           }
                         
                         
                        }
                        if (flag!=5){
                        System.out.println("请核对后重试");
                           
                       
                      }
                    }
   /*************************************************************
   判断各个元素被赋值是否为空，如果不为空就放入到stuList，如果放入数据库，就直接使用数据的插入的函数就可以了。
  
   *************************************************************/
                    if(id != null && name != null && sex != null && Dormitory != null && Sept != null ){
                    Student stu=new Student();
                    stu.setStudentId(id);
                    stu.setStudentName(name);
                    stu.setStudentSept(Sept);
                    stu.setStudentSex(sex);
                    stu.setStudentDormitory(Dormitory);
                    stuList.add(stu);
                        k++;
                    }
        } //获得一行，即读取每一行  
        }  
            //读取每一个sheet
       
     }
        }catch (Exception e) {
                    /********************************************                         下面使用的是2003除了workbook的赋值不同其它与2007基本相同，就不作介绍了
                     *********************************************
        InputStream is = new FileInputStream(path);      
        workbook = new HSSFWorkbook(is);
        try {
        for (int numSheets = 0; numSheets < workbook.getNumberOfSheets(); numSheets++) {  //读取每一个sheet 
            System.out.println("2003版进入读取sheet的循环");
                if (null != workbook.getSheetAt(numSheets)) {   
                    HSSFSheet aSheet = (HSSFSheet)workbook.getSheetAt(numSheets);
                    for (int rowNumOfSheet = 0; rowNumOfSheet <= aSheet.getLastRowNum(); rowNumOfSheet++) { //获得一行  
                   
                        if (null != aSheet.getRow(rowNumOfSheet)) {
                            HSSFRow  aRow = aSheet.getRow(rowNumOfSheet);
                            for (int cellNumOfRow = 0; cellNumOfRow <= aRow.getLastCellNum(); cellNumOfRow++) { //读取rowNumOfSheet值所对应行的数据 
                            HSSFCell  aCell = aRow.getCell(cellNumOfRow); //获得列值  
                       
                            if (null != aRow.getCell(cellNumOfRow)){
                                if(rowNumOfSheet == 0){ // 如果rowNumOfSheet的值为0，则读取表头，判断excel的格式和预定格式是否相符             
                                if(aCell.getCellType() == HSSFCell .CELL_TYPE_NUMERIC){
                                    }else if(aCell.getCellType() == HSSFCell .CELL_TYPE_BOOLEAN){
                                    }else if(aCell.getCellType() == HSSFCell .CELL_TYPE_STRING){
                                    if(cellNumOfRow == 0){
                                if(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("学号")){
           flag++;
           System.out.println("=========flag:" + flag);
                                }else{
                                  System.out.println("错误：第一行的学号不符合约定格式");
                                }
                                }else if(cellNumOfRow == 1){
                                if(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("姓名")){
                                flag++;
                                System.out.println("=========flag:" + flag);
                                }else{
                                System.out.println("错误：第一行的姓名不符合约定格式");
                                }        
           }else if(cellNumOfRow == 2){
           if(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("性别")){
           flag++;
           System.out.println("=========flag:" + flag);
           }else{
           System.out.println("第一行的性别不符合约定格式");
                                }
          
           }else if (cellNumOfRow == 3){
           if(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("寝室号")){
           flag++;
           System.out.println("=========flag:" + flag);
           }else{
           System.out.println("第一行的寝室号不符合约定格式");
                                }
          
           }else if (cellNumOfRow == 4){
           if(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim().equals("所在系")){
           flag++;
           System.out.println("=========flag:" + flag);
           }else{
           System.out.println("第一行的所在系不符合约定格式");
                                }
           }
                                    }
                            }
                                else {
                                if(aCell.getCellType() == HSSFCell .CELL_TYPE_NUMERIC){ //为数值型
                                System.out.println("======进入XSSFCell .CELL_TYPE_NUMERIC模块==========");
                                if(cellNumOfRow == 0){
                            id = String.valueOf(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
                            if(id == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的学号不能为空");
                            }
                            }else if(cellNumOfRow == 1){
                            name = String.valueOf(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
                            if(name == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的姓名不能为空");
                            }
                            }else if(cellNumOfRow == 2){
                            sex = String.valueOf(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
                            if(sex == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的性别不能为空");
                            }                            
                            }else if (cellNumOfRow == 3){                             Dormitory = String.valueOf(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
                            if(Dormitory == null){
                                System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的寝室号不能为空");
                                }
                            }else if (cellNumOfRow == 4){                             Sept = String.valueOf(aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim());
                            if(Sept == null){                     
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的所在系不能为空");
                                }
                           
                            }                                        
                                }else if(aCell.getCellType() == HSSFCell .CELL_TYPE_STRING){  //为字符串型 
                                System.out.print("===============进入XSSFCell .CELL_TYPE_STRING模块============");
                                if(cellNumOfRow == 0){
                            id = aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(id == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的学号不能为空");
                            }
                            }else if(cellNumOfRow == 1){
                            name = aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(name == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的姓名不能为空");
                            }
                            }else if(cellNumOfRow == 2){
                            sex = aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(sex == null){
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的性别不能为空");
                            }                            
                            }else if (cellNumOfRow == 3){
                            Dormitory =aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(Dormitory == null){
                                System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的寝室号不能为空");
                                }
                            }else if (cellNumOfRow == 4){                             Sept =aCell.getStringCellValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ').trim();
                            if(Sept == null){                     
                            System.out.println("错误：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的所在系不能为空");
                                }
                            }     
                               
                                    }else if (aCell.getCellType() == HSSFCell .CELL_TYPE_BLANK) {
                                    System.out.println("提示：在Sheet"+(numSheets+1)+"中的第"+(rowNumOfSheet+1)+"行的第"+(cellNumOfRow+1)+"列的值为空，请查看核对是否符合约定要求".toString());
                                    }
                                }                                                               
                               }                            
                            }
                           
                            if (flag!=5){
                            System.out.println("请核对后重试");
                               
                            }
                        }
           
                        if(id != null && name != null && sex != null && Dormitory != null && Sept != null ){
                    Student stu=new Student();
                    stu.setStudentId(id);
                    stu.setStudentName(name);
                    stu.setStudentSept(Sept);
                    stu.setStudentSex(sex);
                    stu.setStudentDormitory(Dormitory);
                    stuList.add(stu);
                        k++;
                    }
                       
                    }
                    if(k!=0){
                    System.out.println("提示：您导入的数据已存在于数据库，请核对！k 为：" + k);
                }else{
                System.out.println("提示：成功导入了"+k+"条数据");
                }
                }   
            } 
       

} catch (Exception ex) {
ex.printStackTrace();
}finally{
try {
if(is!=null)
is.close();
}catch (Exception e1) {
e1.printStackTrace();
}
}
        }
}
return "SUCCESS";


}

评论

2 楼 2863611808 2014-09-24  

[color=red][/color]

1 楼 xing仔 2014-06-16  

short cellNumber=(short)tableHeader.length我的这句怎么报错呢