java poi excel 导入导出数据
背景：1.pringmvc 框架下 的excel 导入导出
2.OI 操作office.
页面代码：
<div class="modal fade bs-example-modal-lg" tabindex="-1" role="dialog" aria-labelledby="myLargeModalLabel" aria-hidden="true"> <div class="modal-dialog modal-lg" style="width:400px;"> <div class="modal-content"> <div style="height:300px;padding:10px;"> <h1>批量导入商品信息</h1> <div style="margin-top:20px;padding:0px 5px 15px 5px;"> <span><strong>1.下载模板 > 2.导入模板 >3.导入完成</strong></span><br/> <span><strong>温馨提示:</strong></span> <div style="line-height:50px;">导入模板格式不能修改，否则会导致导入失败！</div> <a href="${webRoot}/product/downExcel">下载导入模板</a> </div> <div> <form action="${webRoot}/product/importExcel" id="excelForm" method="post" enctype="multipart/form-data"> <input type="file" name="file" /> <div style="text-align:right;padding-right:50px;"> <button type="button" id="import" class="btn btn-default" >导入</button> <script> $("#import").click(function(){ $("#excelForm").submit(); }); </script> </div> </form> </div> </div> </div> </div> </div>
Controller 代码：
@RequestMapping("importExcel")
public String addComm(ModelMap model, HttpServletRequest request) {
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
MultipartFile file = multipartRequest.getFile("file");
String[][] result = null;
ExportUtil exportUtil = new ExportUtil();
try {
exportUtil.SaveFileFromInputStream(file.getInputStream(),
request.getSession().getServletContext()
.getRealPath(File.separator)+"upload", "product.xls");
File file1 = new File(request.getSession().getServletContext()
.getRealPath(File.separator)+"upload" + "/product.xls");
result =exportUtil.getData(file1, 4);
} catch (Exception ex) {
System.out.println("上传文件失败");
ex.printStackTrace();
}
if (result == null)
return null;
User user = (User)request.getSession().getAttribute("user");
if(user==null) return "";
int rowLength = result.length;
List<Product> proList =exportUtil.doProduct(rowLength, result,user);
ps.excelAdd(proList);
return "redirect:/product/getproduct";
}
@RequestMapping("downExcel")
@ResponseBody
public String downExcel(HttpServletResponse response){
try {
ServletOutputStream outputStream = response.getOutputStream();
String fileName = new String(("商品导入模板").getBytes(), "ISO8859_1");
response.setHeader("Content-disposition", "attachment; filename=" + fileName + ".xls");// 组装附件名称和格式
es.exportExcel(outputStream,false);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "";
}
@RequestMapping("exportExcel")
@ResponseBody
public String exportExcel(HttpServletResponse response){
try {
ServletOutputStream outputStream = response.getOutputStream();
String fileName = new String(("蓝图进销存商品导出").getBytes(), "ISO8859_1");
response.setHeader("Content-disposition", "attachment; filename=" + fileName + ".xls");// 组装附件名称和格式
es.exportExcel(outputStream,true);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "";
}
ExportService:
package com.ly.jxc.service; import java.io.IOException; import java.util.List; import javax.annotation.Resource; import javax.servlet.ServletOutputStream; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFCellStyle; 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.util.CellRangeAddress; import org.springframework.stereotype.Service; import com.ly.jxc.dao.ProductClassDAO; import com.ly.jxc.dao.ProductDAO; import com.ly.jxc.dao.ProductUnitDAO; import com.ly.jxc.entity.Product; import com.ly.jxc.entity.ProductClass; import com.ly.jxc.entity.ProductUnit; import com.ly.jxc.util.ExportUtil; @Service public class ExportService { @Resource private ProductUnitDAO pud; @Resource private ProductClassDAO pcd; @Resource private ProductDAO pd; public void exportExcel(ServletOutputStream outputStream,boolean isDwon) { List<ProductUnit> puList = pud.getAllUnit(); List<ProductClass> pcList = pcd.GetAllProductClass(); // 创建一个workbook 对应一个excel应用文件 // HSSWorkbook 是03版excel 的个格式，XSSWorkbook 是07以上版本，HSS 和 XSS 开头分别代表03,07可以切换 HSSFWorkbook workBook = new HSSFWorkbook(); // 在workbook中添加一个sheet,对应Excel文件中的sheet HSSFSheet sheet = workBook.createSheet("商品导入导出"); //表格默认行宽度 sheet.setDefaultColumnWidth(15); sheet.setDefaultRowHeightInPoints(100); ExportUtil exportUtil = new ExportUtil(workBook, sheet); //设置单元格格式 HSSFCellStyle headStyle = exportUtil.getHeadStyle(false); HSSFCellStyle bodyStyle = exportUtil.getBodyStyle(); //创建单元格 HSSFCell cell = null; //合并单元格 sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, 8)); //创建一行 HSSFRow descRow = sheet.createRow(0); //设置行高 单位是像素 descRow.setHeightInPoints(80); //表示穿件的单元格是在第一行 cell=descRow.createCell(0); //设置单元格格式 cell.setCellStyle(exportUtil.getHeadStyle(true)); //设置单元格值 cell.setCellValue("商品单位和类型填写必须填写对应的数字ID，否则会导入失败！"); // 构建表头 HSSFRow unitRow = sheet.createRow(1); unitRow.setHeightInPoints(40); cell=unitRow.createCell(0); cell.setCellStyle(headStyle); cell.setCellValue("商品单位-ID:"); // 构建商品单位数据，动态构建导出数据 if (puList != null && puList.size() > 0) { for (int j = 0; j < puList.size(); j++) { ProductUnit pu = puList.get(j); cell=unitRow.createCell(j+1); cell.setCellStyle(bodyStyle); cell.setCellValue(pu.getName()+"--"+pu.getpId()); } } // 构建商品类型表头 ，动态构建导出数据 HSSFRow classRow = sheet.createRow(2); classRow.setHeightInPoints(40); cell=classRow.createCell(0); cell.setCellStyle(headStyle); cell.setCellValue("商品类型-ID:"); // 构建商品类型数据 if (pcList != null && pcList.size() > 0) { for (int j = 0; j < pcList.size(); j++) { ProductClass pc = pcList.get(j); cell=classRow.createCell(j+1); cell.setCellStyle(bodyStyle); cell.setCellValue(pc.getName()+"--"+pc.getProductClass_ID()); } } HSSFRow bodyRow = sheet.createRow(3); bodyRow.setHeightInPoints(40); cell = bodyRow.createCell(0); cell.setCellStyle(headStyle); cell.setCellValue("条码"); cell = bodyRow.createCell(1); cell.setCellStyle(headStyle); cell.setCellValue("名字"); cell = bodyRow.createCell(2); cell.setCellStyle(headStyle); cell.setCellValue("类别ID"); cell = bodyRow.createCell(3); cell.setCellStyle(headStyle); cell.setCellValue("产品规格"); cell = bodyRow.createCell(4); cell.setCellStyle(headStyle); cell.setCellValue("产品单位"); cell = bodyRow.createCell(5); cell.setCellStyle(headStyle); cell.setCellValue("出售价格"); cell = bodyRow.createCell(6); cell.setCellStyle(headStyle); cell.setCellValue("进货价格"); cell = bodyRow.createCell(7); cell.setCellStyle(headStyle); cell.setCellValue("最低价格"); cell = bodyRow.createCell(8); cell.setCellStyle(headStyle); cell.setCellValue("备注"); //如果是导出商品，则需要将商品数据写入 if(isDwon){ List<Product> proList = pd.getAllProducts(); for (int i = 0; i < proList.size(); i++) { Product p =proList.get(i); HSSFRow dateRow = sheet.createRow(4+i); bodyRow.setHeightInPoints(40); cell = dateRow.createCell(0); cell.setCellStyle(bodyStyle); cell.setCellValue(p.getpId()); cell = dateRow.createCell(1); cell.setCellStyle(bodyStyle); cell.setCellValue(p.getName()); cell = dateRow.createCell(2); cell.setCellStyle(bodyStyle); cell.setCellValue(p.getpList()); cell = dateRow.createCell(3); cell.setCellStyle(bodyStyle); cell.setCellValue(p.getPsID()); cell = dateRow.createCell(4); cell.setCellStyle(bodyStyle); cell.setCellValue(p.getpUtilId()); cell = dateRow.createCell(5); cell.setCellStyle(bodyStyle); cell.setCellValue(p.getPrice()); cell = dateRow.createCell(6); cell.setCellStyle(bodyStyle); cell.setCellValue(p.getStockPrice()); cell = dateRow.createCell(7); cell.setCellStyle(bodyStyle); cell.setCellValue(p.getLowestPrice()); cell = dateRow.createCell(8); cell.setCellStyle(bodyStyle); cell.setCellValue(p.getRemark()); } } try { workBook.write(outputStream); outputStream.flush(); outputStream.close(); } catch (IOException e) { e.printStackTrace(); } finally { try { outputStream.close(); } catch (IOException e) { e.printStackTrace(); } } } }
辅助类ExportUtil：
package com.ly.jxc.util; import java.io.BufferedInputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; 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 javax.servlet.http.HttpSession; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFDateUtil; import org.apache.poi.hssf.usermodel.HSSFFont; 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.hssf.util.HSSFColor; import org.apache.poi.poifs.filesystem.POIFSFileSystem; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.xssf.usermodel.XSSFCellStyle; import org.apache.poi.xssf.usermodel.XSSFFont; import org.springframework.beans.factory.annotation.Autowired; import com.ly.jxc.entity.Product; import com.ly.jxc.entity.User; public class ExportUtil { private HSSFWorkbook wb = null; private HSSFSheet sheet = null; @Autowired HttpSession session; /** * @param wb * @param sheet */ public ExportUtil(HSSFWorkbook wb, HSSFSheet sheet) { this.wb = wb; this.sheet = sheet; } public ExportUtil() { } /** * 合并单元格后给合并后的单元格加边框 * * @param region * @param cs */ public void setRegionStyle(CellRangeAddress region, XSSFCellStyle cs) { int toprowNum = region.getFirstRow(); for (int i = toprowNum; i <= region.getLastRow(); i++) { HSSFRow row = sheet.getRow(i); for (int j = region.getFirstColumn(); j <= region.getLastColumn(); j++) { HSSFCell cell = row.getCell(j);// XSSFCellUtil.getCell(row, // (short) j); cell.setCellStyle(cs); } } } /** * 设置表头的单元格样式 * * @return */ public HSSFCellStyle getHeadStyle(boolean isalert) { // 创建单元格样式 HSSFCellStyle cellStyle = wb.createCellStyle(); // 设置单元格的背景颜色为淡蓝色 if (!isalert) cellStyle.setFillForegroundColor(HSSFColor.PALE_BLUE.index); else cellStyle.setFillForegroundColor(HSSFColor.RED.index); cellStyle.setFillPattern(XSSFCellStyle.SOLID_FOREGROUND); // 设置单元格居中对齐 cellStyle.setAlignment(XSSFCellStyle.ALIGN_CENTER); // 设置单元格垂直居中对齐 cellStyle.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER); // 创建单元格内容显示不下时自动换行 cellStyle.setWrapText(true); // 设置单元格字体样式 HSSFFont font = wb.createFont(); // 设置字体加粗 font.setBoldweight(XSSFFont.BOLDWEIGHT_BOLD); font.setFontName("宋体"); if (isalert) { font.setColor(HSSFColor.WHITE.index); } font.setFontHeight((short) 200); cellStyle.setFont(font); // 设置单元格边框为细线条 cellStyle.setBorderLeft(XSSFCellStyle.BORDER_THIN); cellStyle.setBorderBottom(XSSFCellStyle.BORDER_THIN); cellStyle.setBorderRight(XSSFCellStyle.BORDER_THIN); cellStyle.setBorderTop(XSSFCellStyle.BORDER_THIN); return cellStyle; } /** * 设置表体的单元格样式 * * @return */ public HSSFCellStyle getBodyStyle() { // 创建单元格样式 HSSFCellStyle cellStyle = wb.createCellStyle(); // 设置单元格居中对齐 cellStyle.setAlignment(XSSFCellStyle.ALIGN_CENTER); // 设置单元格垂直居中对齐 cellStyle.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER); // 创建单元格内容显示不下时自动换行 cellStyle.setWrapText(true); // 设置单元格字体样式 HSSFFont font = wb.createFont(); // 设置字体加粗 font.setBoldweight(XSSFFont.BOLDWEIGHT_BOLD); font.setFontName("宋体"); font.setFontHeight((short) 200); cellStyle.setFont(font); // 设置单元格边框为细线条 cellStyle.setBorderLeft(XSSFCellStyle.BORDER_THIN); cellStyle.setBorderBottom(XSSFCellStyle.BORDER_THIN); cellStyle.setBorderRight(XSSFCellStyle.BORDER_THIN); cellStyle.setBorderTop(XSSFCellStyle.BORDER_THIN); return cellStyle; } // 将MultipartFile 转换为File public static void SaveFileFromInputStream(InputStream stream, String path, String savefile) throws IOException { FileOutputStream fs = new FileOutputStream(path + "/" + savefile); // System.out.println("------------"+path + "/"+ savefile); byte[] buffer = new byte[1024 * 1024]; int bytesum = 0; int byteread = 0; while ((byteread = stream.read(buffer)) != -1) { bytesum += byteread; fs.write(buffer, 0, byteread); fs.flush(); } fs.close(); stream.close(); } /** * * 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 Exception { List<String[]> result = new ArrayList<String[]>(); 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 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); } public List<Product> doProduct(int rowLength,String[][] result,User user){ // 默认从1 开始 本来是为0 剔除掉 List<Product> proList = new ArrayList<Product>(); Date date = new Date(); for (int i = 0; i < rowLength; i++) { Product pro = new Product(); for (int j = 0; j < result[i].length; j++) {// 默认从1开始添加 // 客户ID 客户名 客户类型 客户电话 客户状态 创建时间 放出时间 跟入时间 跟入人 放出人 // 27 法规和热 特级 1212121 1 41773 2014-05-14 10:20:48.0 yq1012 // 整理 id 去掉 。 创建时间 换成当前时间，，，放出时间 跟入时间 跟入人 放出人----全不要 // 格式如上 // System.out.print(result[i][j]+"\t\t"); if (j == 0) // 编码 pro.setpId(result[i][j]); if (j == 1) // 名字 pro.setName(result[i][j]); if (j == 2) // 类别 pro.setpList(Integer.parseInt(result[i][j])); if (j == 3) // 商品规格 pro.setPsID(result[i][j]); if (j == 4)// 单位 pro.setpUtilId(Integer.parseInt(result[i][j])); if (j == 5)// 出售价格 pro.setPrice(Double.parseDouble(result[i][j])); if (j == 6) // 进货价格 pro.setStockPrice(Double.parseDouble(result[i][j])); if (j == 7)// 最低价格 pro.setLowestPrice(Double.parseDouble(result[i][j])); if (j == 8)// 备注 pro.setRemark(result[i][j]); } pro.setUserId(user.getUser_Id()); proList.add(pro); // crmService.saveCrmUser(crm); } return proList; } }