bootstrap-fileinput结合POI实现Excel导入数据库的功能

一、前台

1.首先引入

2.JSP页面 

bootstrap的导入的模态框

									批量导入
							
							

								

									

										

											
												×
											
											

												批量导入
											
										

请选择要导入的excel文件：

3.JS

	//批量导入excel
		initUpload("excelFile","/admin/excelInput");
		function initUpload(ctrlName,uploadUrl){
			var control = $("#"+ctrlName);
			control.fileinput({
				language:"zh",//设置语言
				uploadUrl:uploadUrl,//上传的地址
			    maxFilesNum : 1000,//上传最大的文件数量  
			    uploadAsync: true, //默认异步上传  
			    showUpload: false, //是否显示上传按钮  
			    showRemove : true, //显示移除按钮  
			    showPreview : true, //是否显示预览
			    autoReplace:false, //再次选中文件时,不会替换掉当前文件
			    showCaption: true,//是否显示标题  
			    browseClass: "btn btn-primary", //按钮样式  
			    maxFileSize: 0,//单位为kb，如果为0表示不限制文件大小  
			    enctype: 'multipart/form-data',  
			    validateInitialCount:true,  
			    previewFileIcon: "",  
			    msgFilesTooMany: "选择上传的文件数量({n}) 超过允许的最大数值{m}！", 
			});
		}
	 
		$("#excelFile").on("fileuploaded",function(exevt,data,previewId,index){
			if(data.response.success == true){
				alert("导入成功");
				$("#excelFile").fileinput("clear");
				$("#excelFile").fileinput("reset");
				$("#excelFile").fileinput("refresh");
				$("#excelFile").fileinput("enable");
				$(".close").click();
				$("#reload").click();
				$('.close.fileinput-remove').hide();
			}else{
				alert("导入失败");
				$("#excelFile").fileinput("clear");
				$("#excelFile").fileinput("reset");
				$("#excelFile").fileinput("refresh");
				$("#excelFile").fileinput("enable");
				$('.close.fileinput-remove').hide();
			}
		});

二、后台

1.controller

    @RequestMapping("/admin/excelInput")
	@ResponseBody
	public Result importExcel(@RequestParam(value="excelFile",required=false)MultipartFile file,HttpServletRequest request) throws IOException, InterruptedException{
		MultipartRequest multipartRequest = (MultipartRequest)request;
		MultipartFile excelFile = multipartRequest.getFile("excelFile");
		
		CommonsMultipartFile cf = (CommonsMultipartFile)file;
		DiskFileItem fi = (DiskFileItem) cf.getFileItem();
		File files = fi.getStoreLocation();

		if(excelFile != null){
			String fileName = excelFile.getOriginalFilename();
			String type = fileName.substring(fileName.lastIndexOf(".")+1);

			if("xls".equals(type)){
				String[][] data = ExcelOperate.getData(files, 1);
				//读取的内容后处理
					for(int i = 0; i < data.length; i++) {
						
					System.out.println("第i行第一列数据的值"+data[i][0]);
					
					}
				return new Result(true);
			}else {
				return new Result(false,"请使用xls格式导入！");
			}
			
		}else{
			return new Result(false);
		}
	}

2.自定义返回结果集Result类

public class Result {

	private boolean success;
	private String message;
	public Result(boolean success){
		this.success = success;
	}
	
	public Result(boolean success,String message){
		this.success = success;
		this.message = message;
		
	}
	
	public boolean isSuccess(){
		return success;
	}
	
	public void setSuccess(boolean success){
		this.success = success;
	}
	
	public String getMessage(){
		return message;
	}
	
	public void setMessage(String message){
		this.message = message;
	}
}

3.解析Excel的工具类

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
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.poifs.filesystem.POIFSFileSystem;

public class ExcelOperate {

	public static void main(String[] args) throws Exception {

		try {

			File file = new File("");
			String[][] result = getData(file, 1);
			int rowLength = result.length;
			for (int i = 0; i < rowLength; i++) {
				for (int j = 0; j < result[i].length; j++) {
					System.out.print(result[i][j] + "\t\t");
				}
				System.out.println();
			}

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

	}

	/**
	 * 读取Excel的内容，第一维数组存储的是一行中格列的值，二维数组存储的是多少个行
	 * 
	 * @param file
	 *            读取数据的源Excel
	 * @param ignoreRows
	 *            读取数据忽略的行数，比喻行头不需要读入 忽略的行数为1
	 * @return 读出的Excel中数据的内容
	 * @throws FileNotFoundException
	 * @throws IOException
	 */
	public static String[][] getData(File file, int ignoreRows)
			throws FileNotFoundException, IOException {
		List result = new ArrayList();
		int rowSize = 0;
		BufferedInputStream in = new BufferedInputStream(new FileInputStream(
				file));
		// 打开HSSFWorkbook
		POIFSFileSystem fs = new POIFSFileSystem(in);
		HSSFWorkbook wb = new HSSFWorkbook(fs);
		HSSFCell cell = null;
		for (int sheetIndex = 0; sheetIndex < wb.getNumberOfSheets(); sheetIndex++) {
			HSSFSheet st = wb.getSheetAt(sheetIndex);
			// 第一行为标题，不取
			for (int rowIndex = ignoreRows; rowIndex <= st.getLastRowNum(); rowIndex++) {
				HSSFRow row = st.getRow(rowIndex);
				if (row == null) {
					continue;
				}
				int tempRowSize = row.getLastCellNum() + 1;
				if (tempRowSize > rowSize) {
					rowSize = tempRowSize;
				}
				String[] values = new String[rowSize];
				Arrays.fill(values, "");
				boolean hasValue = false;
				for (short columnIndex = 0; columnIndex <= row.getLastCellNum(); columnIndex++) {
					String value = "";
					cell = row.getCell(columnIndex);
					if (cell != null) {
						// 注意：一定要设成这个，否则可能会出现乱码
						// cell.setEncoding(HSSFCell.ENCODING_UTF_16);
						switch (cell.getCellType()) {
						case HSSFCell.CELL_TYPE_STRING:
							value = cell.getStringCellValue();
							break;
						case HSSFCell.CELL_TYPE_NUMERIC:
							if (HSSFDateUtil.isCellDateFormatted(cell)) {
								Date date = cell.getDateCellValue();
								if (date != null) {
									value = new SimpleDateFormat("yyyy-MM-dd")
											.format(date);
								} else {
									value = "";
								}
							} else {
								value = new DecimalFormat("0").format(cell
										.getNumericCellValue());
							}
							break;
						case HSSFCell.CELL_TYPE_FORMULA:
							// 导入时如果为公式生成的数据则无值
							if (!cell.getStringCellValue().equals("")) {
								value = cell.getStringCellValue();
							} else {
								value = cell.getNumericCellValue() + "";
							}
							break;
						case HSSFCell.CELL_TYPE_BLANK:
							break;
						case HSSFCell.CELL_TYPE_ERROR:
							value = "";
							break;
						case HSSFCell.CELL_TYPE_BOOLEAN:
							value = (cell.getBooleanCellValue() == true ? "Y"
									: "N");
							break;
						default:
							value = "";
						}
					}
					if (columnIndex == 0 && value.trim().equals("")) {
						break;
					}
					values[columnIndex] = rightTrim(value);
					hasValue = true;
				}

				if (hasValue) {
					result.add(values);
				}
			}
		}
		in.close();
		String[][] returnArray = new String[result.size()][rowSize];
		for (int i = 0; i < returnArray.length; i++) {
			returnArray[i] = (String[]) result.get(i);
		}
		return returnArray;
	}

	/**
	 * 去掉字符串右边的空格
	 * 
	 * @param str
	 *            要处理的字符串
	 * @return 处理后的字符串
	 */
	public static String rightTrim(String str) {
		if (str == null) {
			return "";
		}
		int length = str.length();
		for (int i = length - 1; i >= 0; i--) {
			if (str.charAt(i) != 0x20) {
				break;
			}
			length--;
		}
		return str.substring(0, length);
	}
}