前台jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>数据导入</title>
<style type="text/css">
</style>
</head>
<body>
<div align="right">
<form action="<%=request.getContextPath()%>/loanData" method="POST" enctype="multipart/form-data">
<table class="table" id="queryCondition">
<tbody class="tbd">
<tr>
<td align="right" style="padding-right: 2px">
<input type="file" name="myfiles" id="myfiles" style="display: none;" onchange="document.getElementById('filePath').value=this.value" />
<div class="input-group">
<input type='text' name='filePath' id='filePath' class='form-control'/>
<span class="input-group-btn">
<button type="button" class="btn btn-sm btn-info blue" id="btn_check">
<i class="icon-edit">请选择文件</i>
</button>
</span>
</div>
</td>
<td align="left" style="padding-left: 2px">
<button type="submit" class="btn btn-sm btn-info" id="upload">
<i class="upload-icon icon-cloud-upload bigger-110">导入</i>
</button>
</td>
</tr>
</tbody>
</table>
</form>
</div>
<script type="text/javascript">
$(function() {
$("#btn_check").click(function() {
$("#myfiles").trigger('click');
});
$("#filePath").click(function() {
$("#myfiles").trigger('click');
});
});
</script>
</body>
</html>java代码，使用的包为poi3.5，commons-io2.1
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import javax.servlet.http.HttpServletRequest;
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.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.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
@Controller
public class HdImporController {
@RequestMapping("/initLoanData")
public String initLoanData(HttpServletRequest request) {
return "views/service/import/loanData";
}
@RequestMapping(value = "/loanData", method = RequestMethod.POST)
public String loanData(@RequestParam MultipartFile[] myfiles,
HttpServletRequest request) throws IOException {
// 如果只是上传一个文件，则只需要MultipartFile类型接收文件即可，而且无需显式指定@RequestParam注解
// 如果想上传多个文件，那么这里就要用MultipartFile[]类型来接收文件，并且还要指定@RequestParam注解
// 并且上传多个文件时，前台表单中的所有<input
// type="file"/>的name都应该是myfiles，否则参数里的myfiles无法获取到所有上传的文件
File[] files = new File[myfiles.length];
for (MultipartFile myfile : myfiles) {
if (myfile.isEmpty()) {
System.out.println("文件未上传");
} else {
System.out.println("文件长度: " + myfile.getSize());
System.out.println("文件类型: " + myfile.getContentType());
System.out.println("文件名称: " + myfile.getName());
System.out.println("文件原名: " + myfile.getOriginalFilename());
System.out.println("========================================");
// 如果用的是Tomcat服务器，则文件会上传到\\%TOMCAT_HOME%\\webapps\\YourWebProject\\WEB-INF\\upload\\文件夹中
String realPath = request.getSession().getServletContext().getRealPath("/files/upload/loanData");
// 这里不必处理IO流关闭的问题，因为FileUtils.copyInputStreamToFile()方法内部会自动把用到的IO流关掉，我是看它的源码才知道的
File file = new File(realPath, myfile.getOriginalFilename());
FileUtils.copyInputStreamToFile(myfile.getInputStream(), file);
if(myfile.getOriginalFilename().toLowerCase().endsWith("xls")){
readXls(myfile.getInputStream());
}else{
readXlsx(file+"");
}
}
}
return "views/service/import/loanData";
}
private void readXlsx(String fileName) throws IOException {
//String fileName = "D:\\excel\\xlsx_test.xlsx";
XSSFWorkbook xssfWorkbook = new XSSFWorkbook(fileName);
// 循环工作表Sheet
for (int numSheet = 0; numSheet < xssfWorkbook.getNumberOfSheets(); numSheet++) {
XSSFSheet xssfSheet = xssfWorkbook.getSheetAt(numSheet);
if (xssfSheet == null) {
continue;
}
// 循环行Row
for (int rowNum = 0; rowNum <= xssfSheet.getLastRowNum(); rowNum++) {
XSSFRow xssfRow = xssfSheet.getRow(rowNum);
if (xssfRow == null) {
continue;
}
// 循环列Cell
for (int cellNum = 0; cellNum <= xssfRow.getLastCellNum(); cellNum++) {
XSSFCell xssfCell = xssfRow.getCell(cellNum);
if (xssfCell == null) {
continue;
}
System.out.print(" " + getValue(xssfCell));
}
System.out.println();
}
}
}
@SuppressWarnings("static-access")
private String getValue(XSSFCell xssfCell) {
if (xssfCell.getCellType() == xssfCell.CELL_TYPE_BOOLEAN) {
return String.valueOf(xssfCell.getBooleanCellValue());
} else if (xssfCell.getCellType() == xssfCell.CELL_TYPE_NUMERIC) {
return String.valueOf(xssfCell.getNumericCellValue());
} else {
return String.valueOf(xssfCell.getStringCellValue());
}
}
private void readXls(InputStream is) throws IOException {
HSSFWorkbook hssfWorkbook = new HSSFWorkbook(is);
// 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 = 0; rowNum <= hssfSheet.getLastRowNum(); rowNum++) {
HSSFRow hssfRow = hssfSheet.getRow(rowNum);
if (hssfRow == null) {
continue;
}
// 循环列Cell
for (int cellNum = 0; cellNum <= hssfRow.getLastCellNum(); cellNum++) {
HSSFCell hssfCell = hssfRow.getCell(cellNum);
if (hssfCell == null) {
continue;
}
System.out.print(" " + getValue(hssfCell));
}
System.out.println();
}
}
}
@SuppressWarnings("static-access")
private String getValue(HSSFCell hssfCell) {
if (hssfCell.getCellType() == hssfCell.CELL_TYPE_BOOLEAN) {
return String.valueOf(hssfCell.getBooleanCellValue());
} else if (hssfCell.getCellType() == hssfCell.CELL_TYPE_NUMERIC) {
return String.valueOf(hssfCell.getNumericCellValue());
} else {
return String.valueOf(hssfCell.getStringCellValue());
}
}
}原文地址：http://blog.csdn.net/tzhongwen/article/details/42424197
