Excel数据批量导入到数据库2

1.导包（共3个）

2.jsp

<s:form action="ReadExcel.action" method="post" enctype="multipart/form-data">
     <s:file name="file" ></s:file>
     <s:submit></s:submit>
     </s:form>

　　

3.action代码

package com.chao.action;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.io.FileUtils;
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;
import org.apache.struts2.ServletActionContext;

import com.chao.db.Students;
import com.chao.service.ActionManager;
import com.opensymphony.xwork2.ActionSupport;

public class ReadExcel extends ActionSupport {
	/**
	 * 
	 */
	ActionManager mgr;
	private static final long serialVersionUID = 1L;
	File file;
	String Excel_Path;
	String upload;
	private String fileFileName; 
    private String fileContentType;	
    Students students;
    List<Students> studentslist=new ArrayList<Students>();

	public ActionManager getMgr() {
		return mgr;
	}

	public void setMgr(ActionManager mgr) {
		this.mgr = mgr;
	}

	public File getFile() {
		return file;
	}

	public void setFile(File file) {
		this.file = file;
	}

	public String getFileFileName() {
		return fileFileName;
	}

	public void setFileFileName(String fileFileName) {
		this.fileFileName = fileFileName;
	}

	public String getFileContentType() {
		return fileContentType;
	}

	public void setFileContentType(String fileContentType) {
		this.fileContentType = fileContentType;
	}

	public String getExcel_Path() {
		return Excel_Path;
	}

	public void setExcel_Path(String excel_Path) {
		Excel_Path = excel_Path;
	}

	public Students getStudents() {
		return students;
	}

	public void setStudents(Students students) {
		this.students = students;
	}

	public List<Students> getStudentslist() {
		return studentslist;
	}

	public void setStudentslist(List<Students> studentslist) {
		this.studentslist = studentslist;
	}

	public String execute() throws Exception{	
		
		try{
			if(!fileContentType.toString().equals("application/vnd.ms-excel")){//上传文件格式只能为excel
				return ERROR;
				}			
			File excel=new File(ServletActionContext.getServletContext().getRealPath("upload")); 			
			 if(!excel.exists()){  
				 excel.mkdir(); 
		        }  
			FileUtils.copyFile(file,new File(excel+"\"+fileFileName));  
	        　　　　 FileUtils.copyFile(file,new File(excel,fileFileName)); 
			
			
			//读取excel
			InputStream is = new FileInputStream(file);
			HSSFWorkbook hssfWorkbook = new HSSFWorkbook(is);
			students=new Students();
			//遍历sheet
			for (int numSheet = 0; numSheet < hssfWorkbook.getNumberOfSheets(); numSheet++) {
				HSSFSheet hssfSheet = hssfWorkbook.getSheetAt(numSheet);
				if (hssfSheet == null) {
					continue;
				}
				//遍历每个行
				for (int rowNum = 1; rowNum <= hssfSheet.getLastRowNum(); rowNum++) {
					HSSFRow hssfRow = hssfSheet.getRow(rowNum);
					if (hssfRow != null) {
						HSSFCell number = hssfRow.getCell(0);
						HSSFCell password = hssfRow.getCell(1);
						HSSFCell name = hssfRow.getCell(2);
						HSSFCell sex = hssfRow.getCell(3);
						HSSFCell academy = hssfRow.getCell(4);
						HSSFCell major = hssfRow.getCell(5);
						HSSFCell classs = hssfRow.getCell(6);
						HSSFCell grade = hssfRow.getCell(7);
						//System.out.println(number+" "+password+" "+name+" "+sex+" "+academy+major+classs+grade);
						students.setNumber(number.toString());
						students.setPassword(password.toString());
						students.setName(name.toString());						
						students.setSex(sex.toString());
						students.setAcademy(academy.toString());
						students.setMajor(major.toString());
						students.setClasss(classs.toString());
						students.setGrade(grade.toString());
						//System.out.println(students.getNumber()+" "+students.getPassword()+" "+students.getName()+" "+students.getSex()+" "+students.getAcademy()+students.getMajor()+students.getClasss()+students.getGrade());
						mgr.Save(students);
						System.out.println(number+" "+name+" "+"插入成功");
					}
				}
				}
			FileUtils.deleteDirectory(new File(ServletActionContext.getServletContext().getRealPath("upload"))); //删除文件夹
			return SUCCESS;		
		}catch (Exception e) {
			// TODO: handle exception
			System.out.print(e);
			FileUtils.deleteDirectory(new File(ServletActionContext.getServletContext().getRealPath("upload"))); //删除文件夹
			return SUCCESS;
		}
		
	}

}