完整版excel上传导入读写批量数据并将反馈结果写入远程exel中

思路:excel的读写借助于poi框架,在写入远程的时候,是不能直接写入的,本博主将传入的文件再次拉下来写到项目临时文件中,然后,在临时文件中写入,然后,以同样的名称路径覆盖掉远程的就可以了,稍微有点绕了,从远端获取文件,需要通过流来写到项目临时文件中,具体见下方代码,代码中有部分业务删减,该代码是在工作中运行通过的。模板是我们自己制定的,所以只适合已有模板。

文件工具类及方法:

  1 package com.XXXX.XXXXX.utils;
  2 
  3 import java.io.ByteArrayOutputStream;
  4 import java.io.File;
  5 import java.io.FileInputStream;
  6 import java.io.FileNotFoundException;
  7 import java.io.FileOutputStream;
  8 import java.io.IOException;
  9 import java.io.InputStream;
 10 import java.net.HttpURLConnection;
 11 import java.net.URL;
 12 import java.text.DecimalFormat;
 13 import java.util.ArrayList;
 14 import java.util.List;
 15 
 16 import org.apache.commons.io.FileUtils;
 17 import org.apache.poi.hssf.usermodel.HSSFDateUtil;
 18 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 19 import org.apache.poi.ss.usermodel.Cell;
 20 import org.apache.poi.ss.usermodel.CellType;
 21 import org.apache.poi.ss.usermodel.Row;
 22 import org.apache.poi.ss.usermodel.Sheet;
 23 import org.apache.poi.ss.usermodel.Workbook;
 24 import org.apache.poi.ss.usermodel.WorkbookFactory;
 25 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 26 import org.slf4j.Logger;
 27 import org.slf4j.LoggerFactory;
 28 import org.springframework.util.ResourceUtils;
 29 
 30 import com.sun.javafx.scene.control.skin.TreeTableRowSkin;
 31 import com.xxx.cloud.common.utils.DateFormatUtil;
 32 import com.xxx.cloud.common.utils.StringUtil;
 33 
 34 public class ReadExcelUtil {
 35     
 36     private static final String EXCEL_XLS = ".xls";
 37     private static final String EXCEL_XLSX = ".xlsx";
 38     
 39     /**
 40      *读取excel数据
 41      * @throws Exception 
 42      *
 43      */
 44     public static List<List<String>> readExcelInfo(String url) throws Exception{
 45 //        支持excel2003、2007
 46         File excelFile = new File(url);//创建excel文件对象
 47         InputStream is = new FileInputStream(excelFile);//创建输入流对象
 48         checkExcelVaild(excelFile);
 49         Workbook workbook = getWorkBook(is, excelFile);
 50 //        Workbook workbook = WorkbookFactory.create(is);//同时支持2003、2007、2010
 51 //        获取Sheet数量
 52         int sheetNum = workbook.getNumberOfSheets();
 53         sheetNum = 1;//限制模板只在一个工作簿上操作
 54 //      创建二维数组保存所有读取到的行列数据,外层存行数据,内层存单元格数据
 55         List<List<String>> dataList = new ArrayList<List<String>>();
 56 //        遍历工作簿中的sheet,第一层循环所有sheet表
 57         for(int index = 0;index<sheetNum;index++){
 58             Sheet sheet = workbook.getSheetAt(index);
 59             if(sheet==null){
 60                 continue;
 61             }
 62 //            如果当前行没有数据跳出循环,第二层循环单sheet表中所有行
 63             for(int rowIndex=0;rowIndex<=sheet.getLastRowNum();rowIndex++){
 64                 System.out.println(sheet.getLastRowNum()+"====");
 65                 Row row = sheet.getRow(rowIndex);
 66                 if(row==null){
 67                     continue;
 68                 }
 69 //                遍历每一行的每一列,第三层循环行中所有单元格
 70                 List<String> cellList = new ArrayList<String>();
 71                 for(int cellIndex=0;cellIndex<row.getLastCellNum();cellIndex++){
 72                     Cell cell = row.getCell(cellIndex);
 73                     System.out.println(cellIndex);
 74                     cellList.add(getCellValue(cell));
 75                 }
 76                 dataList.add(cellList);
 77             }
 78             
 79         }
 80         is.close();
 81         return dataList;
 82         }
 83     /**
 84      *获取单元格的数据,暂时不支持公式
 85      * 
 86      *
 87      */
 88         public static String getCellValue(Cell cell){
 89             CellType cellType = cell.getCellTypeEnum();
 90             if(cellType==null){
 91                 return null;
 92             }
 93             String cellValue = "";
 94             if(cell==null || cell.toString().trim().equals("")){
 95                 return null;
 96             }
 97             
 98             if(cellType==CellType.STRING){
 99                 cellValue = cell.getStringCellValue().trim();
100                 return cellValue = StringUtil.isEmpty(cellValue)?"":cellValue;
101             }
102             if(cellType==CellType.NUMERIC){
103                 if (HSSFDateUtil.isCellDateFormatted(cell)) {  //判断日期类型
104                      cellValue = DateFormatUtil.formatDurationYMD(cell.getDateCellValue().getTime());
105                  } else {  //
106                      cellValue = new DecimalFormat("#.######").format(cell.getNumericCellValue()); 
107                  } 
108                 return cellValue;
109             }
110             if(cellType==CellType.BOOLEAN){
111                 cellValue = String.valueOf(cell.getBooleanCellValue());
112                 return cellValue;
113             }
114             return null;
115             
116         }
117     /**
118      *判断excel的版本,并根据文件流数据获取workbook
119      * @throws IOException 
120      *
121      */
122     public static Workbook getWorkBook(InputStream is,File file) throws Exception{
123         
124         Workbook workbook = null;
125         if(file.getName().endsWith(EXCEL_XLS)){
126             workbook = new HSSFWorkbook(is);
127         }else if(file.getName().endsWith(EXCEL_XLSX)){
128             workbook = new XSSFWorkbook(is);
129         }
130         
131         return workbook;
132     }
133     /**
134      *校验文件是否为excel
135      * @throws Exception 
136      * 
137      *
138      */
139     public static void checkExcelVaild(File file) throws Exception {
140         String message = "该文件是EXCEL文件!";
141         if(!file.exists()){
142             message = "文件不存在!";
143             throw new Exception(message);
144         }
145         if(!file.isFile()||((!file.getName().endsWith(EXCEL_XLS)&&!file.getName().endsWith(EXCEL_XLSX)))){
146             message = "文件不是Excel";
147             throw new Exception(message);
148         }
149     }
150     /**
151      *校验上传的excel模板是否正确
152      * 
153      * 
154      *
155      */
156     public static boolean checkExcelTemplate(String url){
157             try {
158                 List<List<String>> list = ReadExcelUtil.readExcelInfo(url);
159                 for(int i=0;i<list.size();i++){
160                     if(i==0){
161                         if(!list.get(i).get(0).trim().equals("公司ID")||!list.get(i).get(1).trim().equals("产品ID")||!list.get(0).get(2).trim().equals("设备类型")
162                                 ||!list.get(i).get(3).trim().equals("设备型号")||!list.get(i).get(4).trim().equals("设备名称")){
163                             return false;
164                         }
165                     }
166                     if(i==2){
167                         if(!list.get(i).get(0).trim().equals("设备ID")||!list.get(i).get(1).trim().equals("结果")){
168                             return false;
169                         }
170                     }
171             } 
172                 }catch (Exception e) {
173                 // TODO Auto-generated catch block
174                 e.printStackTrace();
175             }
176             return true;
177 
178         }
179     /**
180      * 将反馈结果写入excel中
181      * */
182     public static void writeExcelResult(String url,List<Integer> result) throws Exception{
183 //        支持excel2003、2007
184         File excelFile = new File(url);//创建excel文件对象
185         InputStream is = new FileInputStream(excelFile);//创建输入流对象
186         checkExcelVaild(excelFile);
187         Workbook workbook = getWorkBook(is, excelFile);
188 //        Workbook workbook = WorkbookFactory.create(is);//同时支持2003、2007、2010
189 //        获取Sheet数量
190         int sheetNum = workbook.getNumberOfSheets();
191         sheetNum = 1;//限制模板只在一个工作簿上操作
192 //        遍历工作簿中的sheet,第一层循环所有sheet表
193         for(int index = 0;index<sheetNum;index++){
194             Sheet sheet = workbook.getSheetAt(index);
195             if(sheet==null){
196                 continue;
197             }
198 //            如果当前行没有数据跳出循环,第二层循环单sheet表中所有行
199             for(int rowIndex=3;rowIndex<=sheet.getLastRowNum();rowIndex++){
200                 Row row = sheet.getRow(rowIndex);
201                 row.createCell(1).setCellValue(result.get(rowIndex-3));
202             }
203             
204         }
205         FileOutputStream outputStream = new FileOutputStream(url);
206         workbook.write(outputStream);
207         outputStream.close();
208         }
209       /** 
210      * 根据地址获得客户上传的excel字节流 
211      * @param fileUrl 网络连接地址 
212      * @return 
213      */  
214     public static byte[] getExcelFromAliyun(String fileUrl){  
215         try {  
216             URL url = new URL(fileUrl);  
217             HttpURLConnection conn = (HttpURLConnection)url.openConnection();  
218             conn.setRequestMethod("GET");  
219             conn.setConnectTimeout(5 * 1000);  
220             InputStream inStream = conn.getInputStream();//通过输入流获取excelFile数据  
221             byte[] excelFile = readInputStream(inStream);//得到excelFile的二进制数据  
222             return excelFile;  
223         } catch (Exception e) {  
224             e.printStackTrace();  
225         }  
226         return null;  
227     }  
228     /** 
229      * 从网上得到的输入流中获取数据转换为二进制数据 
230      * @param inStream 输入流 
231      * @return 
232      * @throws Exception 
233      */  
234     public static byte[] readInputStream(InputStream inStream) throws Exception{  
235         ByteArrayOutputStream outStream = new ByteArrayOutputStream();  
236         byte[] buffer = new byte[1024];  
237         int len = 0;  
238         while( (len=inStream.read(buffer)) != -1 ){  
239             outStream.write(buffer, 0, len);  
240         }  
241         inStream.close();  
242         return outStream.toByteArray();  
243     }
244     /** 
245      * 将文件写入到目标目录中 
246      * @param excel 文件数据流
247      * @param fileName 文件保存时的名称 
248      */  
249     public static void writeFileToDest(byte[] excelFile, File dest){  
250         try {  
251             FileOutputStream out = new FileOutputStream(dest);  
252             out.write(excelFile);  
253             out.flush();  
254             out.close();  
255         } catch (Exception e) {  
256             e.printStackTrace();  
257         }  
258     }
259     /***
260      * 
261      * 在项目中创建临时文件
262      * @throws IOException 
263      * */
264     public static File createTempFile(String fileName) throws IOException{
265         File path = new File(ResourceUtils.getURL("classpath:").getPath());
266         if(!path.exists()) path = new File("");
267         File upload = new File(path.getAbsolutePath(),"static/images/upload/");
268         if(!upload.exists()) upload.mkdirs();
269         File tempFile = new File(upload+"/"+fileName);
270         if(!tempFile.getParentFile().exists()){
271             tempFile.getParentFile().mkdirs();//创建父级文件路径
272             tempFile.createNewFile();//创建文件
273         }
274         return tempFile;
275     }
276 }

contrller层代码

  1 @PostMapping("/addBatchDevice")
  2     public ResponseObj addBatchDevice(@RequestBody JSONObject obj) throws IOException{
  3         logger.info("导入批量设备:"+obj.toJSONString());
  4         ResponseObj response = new ResponseObj();
  5         String id = obj.getString("id");
  6         BatchRecord batchRecord = deviceService.selectBatchRecordById(id);
  7         String path = aliConstants.aliyunHostOuter+"/"+batchRecord.getFilePath();
  8 //        将该该文件下载出来保存到项目中
  9         byte[] excelFile = ReadExcelUtil.getExcelFromAliyun(path);
 10         File tempFile = ReadExcelUtil.createTempFile(batchRecord.getFileName());
 11         ReadExcelUtil.writeFileToDest(excelFile, tempFile);
 12         String url = tempFile.getAbsolutePath();
 13         String companyId = null;
 14         String productId = null;
 15         Integer deviceType = null;
 16         String model = null;
 17         String deviceName = null;
 18         boolean flag = ReadExcelUtil.checkExcelTemplate(url);
 19         if(!flag){
 20             response.setData(Defined.STATUS_ERROR);
 21             response.setMessage("文件有误,请根据模板上传文件。");
 22             return response;
 23         }
 24         List<Integer> result = new ArrayList<Integer>();//存放反馈信息 
 25         try {
 26             List<List<String>> list = ReadExcelUtil.readExcelInfo(url);
 27             for(int i=0;i<list.size();i++){
 28             if(i==0||i==2){
 29                 continue;//跳过模板第1,3行
 30             }    
 31             if(i==1){
 32                 companyId = list.get(i).get(0);
 33                 productId = list.get(i).get(1);
 34                 deviceType = Integer.valueOf(list.get(i).get(2));
 35                 model = list.get(i).get(3);
 36                 deviceName = list.get(i).get(4);
 37             }
 38             if(i>2){
 39 //                new一个对象按照相应的字段设置进去就可以了,这里省略对象设置值,字段如下:
 40                 Device device = new Device();
 41                 String deviceId = IdGen.uuid();
 42                 device.setId(deviceId);
 43                 //省略部分业务代码
 44                 DeviceFields deviceFields = new DeviceFields();
 45                 deviceFields.setId(IdGen.uuid());
 46                 deviceFields.setDeviceId(deviceId);
 47                 //省略部分业务代码
 48                 Gateway gateway = new Gateway();
 49                 gateway.setId(IdGen.uuid());
 50                 //省略部分业务代码
 51                 if(!deviceService.checkDeviceUidRepeat(uid)){
 52 //                    重复,返回sheet行号,并写入sheet表单中
 53                     result.add(1);
 54                     continue;
 55                 }
 56 //                关联表一个事务处理
 57                 boolean flg = deviceService.addDeviceEtc(device, deviceFields, gateway);
 58                 if(!flg){
 59                     result.add(1);
 60                 }else{
 61                     result.add(0);
 62                 }
 63             }
 64         }
 65 //            将反馈结果写入文件0-成功,1-失败
 66             ReadExcelUtil.writeExcelResult(url, result);
 67             AliYunFileSetting setting = new AliYunFileSetting();
 68             setting.setAccessKeyId(aliConstants.accessKeyId);
 69             setting.setAccessKeySecret(aliConstants.accessKeySecret);
 70             setting.setBucketName(aliConstants.bucketName);
 71             setting.setEndpoint(aliConstants.endpoint);
 72             AliyunFileManager manager = AliyunFileManager.getInstance(setting);
 73             InputStream is = new FileInputStream(tempFile);
 74             String relativePath =aliConstants.excelFilePath;//相对路径
 75             boolean fg = manager.upload(is, relativePath, batchRecord.getFileName());//上传文件与客户上传后生成的文件名相同。
 76             if(fg){
 77                 logger.info("反馈已经成功写入文件中!");
 78 //            更新批量记录
 79                 batchRecord.setUpdateTime(DateUtil.getNowTimestamp());
 80                 deviceService.updateBatchRecordByPrimaryKey(batchRecord);
 81             }
 82     } catch (Exception e) {
 83             // TODO Auto-generated catch block
 84             e.printStackTrace();
 85         }
 86         response.setMessage("批量导入设备成功!");
 87         response.setStatus(Defined.STATUS_SUCCESS);
 88         return response;
 89     }
 90     @PostMapping("uploadExcel")
 91      public ResponseObj uploadExcel(@RequestParam("excelFile") MultipartFile file,@RequestParam("companyId") String companyId,
 92              @RequestParam("productId") String productId,HttpServletRequest request) throws Exception {
 93         ResponseObj response = new ResponseObj();
 94         response.setData(Defined.STATUS_SUCCESS);
 95         response.setMessage("文件上传成功!");
 96         ResponseObj resp = new ResponseObj();
 97         resp.setData(Defined.STATUS_ERROR);
 98         resp.setMessage("不是文件!");
 99         AliYunFileSetting setting = new AliYunFileSetting();
100         setting.setAccessKeyId(aliConstants.accessKeyId);
101         setting.setAccessKeySecret(aliConstants.accessKeySecret);
102         setting.setBucketName(aliConstants.bucketName);
103         setting.setEndpoint(aliConstants.endpoint);
104         AliyunFileManager manager = AliyunFileManager.getInstance(setting);
105         if(file.isEmpty()){
106             response.setData(Defined.STATUS_ERROR);
107             response.setMessage("不是文件!");
108             return response;
109            }
110         String fileName = file.getOriginalFilename();
111         long fileSize = file.getSize();
112         File tempFile = ReadExcelUtil.createTempFile(fileName);
113         String relativePath =aliConstants.excelFilePath;//相对路径
114         String dir =  aliConstants.aliyunHostOuter+"/"+relativePath;//云端绝对路径
115         File dest = new File(dir);
116         if(!dest.exists()){ //判断文件目录是否存在
117             dest.mkdir();//
118         }
119         try {
120             file.transferTo(tempFile); 
121             InputStream is = new FileInputStream(tempFile);
122             String suffix=fileName.substring(fileName.lastIndexOf("."));//获取原始文件后缀.xlxs(含点)
123             String newFileName = IdGen.uuid()+suffix;
124             boolean result = manager.upload(is, relativePath, newFileName);//上传文件,并建立随机文件名。
125 //          boolean result = manager.upload(is, dir, fileName);//上传阿里云,固定文件名
126             if(result){
127                  response.setData(dir+"/"+newFileName);//返回新建文件名的绝对路径
128 //                 数据库存入相对路径
129                  BatchRecord batchRecord = new BatchRecord();
130                  batchRecord.setFileName(newFileName);
131                  batchRecord.setFilePath(relativePath+"/"+newFileName);
132                  batchRecord.setFileSize(fileSize);
133                  batchRecord.setIsDelete((byte) 0);
134                  batchRecord.setStatus((byte) 0);
135                  batchRecord.setId(IdGen.uuid());
136                  batchRecord.setCreateTime(DateUtil.getNowTimestamp());
137 //                 batchRecord.setUpdateTime(DateUtil.getNowTimestamp());
138                  batchRecord.setCompanyId(companyId);
139                  batchRecord.setProductId(productId);
140                  Integer resultNum  = deviceService.addBatchRecord(batchRecord);
141                  if(resultNum>0){
142                      tempFile.delete();
143                  return response;
144                  }
145                  return resp;
146             }else{
147                 resp.setMessage("文件上传失败!");
148                 return resp;
149             }
150         } catch (IllegalStateException e) {
151             // TODO Auto-generated catch block
152             e.printStackTrace();
153             resp.setMessage("文件上传异常!");
154             return resp;
155         } catch (IOException e) {
156             // TODO Auto-generated catch block
157             e.printStackTrace();
158             resp.setMessage("文件上传异常!");
159             return resp;
160         }
161     }

模板图片:

 

posted @ 2018-07-19 14:13  醉逍遥_001  阅读(1412)  评论(0编辑  收藏  举报