采用讀取csv格式,類似讀取txt文檔
接收前端請(qǐng)求的controller層
前端代碼使用的Vue upload主鍵,返回值一般就是讀取成功或失敗
@RequestMapping(value = "/importExcelDatas.do", method = RequestMethod.POST)
@ResponseBody
public ResultData importExcelDatas(HttpServletRequest request,HttpServletResponse response) {
ResultData resultData = new ResultData();
try {
resultData = importDataService.importExcelDatas(request, response);
} catch (Exception e) {
e.printStackTrace();
resultData.setResult(false);
log.error(e.getMessage(), e);
}
return resultData;
}
處理數(shù)據(jù)Service層
public ResultData importExcelDatas(HttpServletRequest request, HttpServletResponse response) throws Exception {
ResultData resultData = new ResultData();
//轉(zhuǎn)換請(qǐng)求
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
//獲取請(qǐng)求中的上傳文件名 迭代器
Iterator<String> iter = multipartRequest.getFileNames();
List<String[]> list = new ArrayList<>();
MultipartFile multipartFile=null;
Map<String,List<Map<String, String>>> superMap = null;
while (iter.hasNext()) {
String filefiled = iter.next();
//或得上傳文件
multipartFile = multipartRequest.getFile(filefiled);
//因?yàn)槭录Ｊ较碌淖x取是在工具類里盜用我們的處理方法所以把必要的數(shù)據(jù)傳過(guò)去,這里可忽略給自己提醒看的
/* importDataServiceimpl importService = new importDataServiceimpl();
importService.response = response;
importService.request=request;
importService.tenantCode = tenantCode;
importService.multipartFile = multipartFile;
importService.importName = importName;
importService.mbrMemberLocationServiceImpl=this.mbrMemberLocationServiceImpl;
importService.mbrCategoryDao = this.mbrCategoryDao;
importService.sysComboCodeDao=this.sysComboCodeDao;
importService.handleLogService=this.handleLogService;
importService.mbrMemberService=this.mbrMemberService;
importService.mbrImportNotSuccessDao = this.mbrImportNotSuccessDao;
importService.mbrMemberLocationDao=this.mbrMemberLocationDao;
*/
try {
//讀取的過(guò)程
ExcelReaderUtils.readExcel(importService,multipartFile);
} catch (Exception e) {
logger.error(e.getMessage());
resultData.setResult(false);
resultData.setMessage("讀取文件失敗,請(qǐng)檢查文件!");
return resultData;
}
}
resultData.setResult(true);
return resultData;
}
識(shí)別文件調(diào)用處理類
public class ExcelReaderUtils {
//excel2003擴(kuò)展名
public static final String EXCEL03_EXTENSION = ".xls";
//excel2007擴(kuò)展名
public static final String EXCEL07_EXTENSION = ".xlsx";
/**
* 讀取Excel文件，可能是03也可能是07版本
* @param excel03
* @param excel07
* @throws Exception
*/
public static void readExcel(importDataServiceimpl importService,MultipartFile multipartFile) throws Exception{
//multipartFile獲取文件名 判斷文件類型
String fileName = multipartFile.getOriginalFilename();
// 處理excel2003文件
if (fileName.endsWith(EXCEL03_EXTENSION)){
Excel2003Reader excel03 = new Excel2003Reader();
excel03.process(fileName);
// 處理excel2007文件
} else if (fileName.endsWith(EXCEL07_EXTENSION)){
Excel2007Reader excel07 = new Excel2007Reader();
excel07.process(multipartFile);
} else {
throw new Exception("文件格式錯(cuò)誤，fileName的擴(kuò)展名只能是xls或xlsx。");
}
}
}
處理Excel2003的工具類
這里只貼下代碼沒(méi)做研究
package com.sjky.platform.myapp.importData.utils;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.hssf.eventusermodel.EventWorkbookBuilder.SheetRecordCollectingListener;
import org.apache.poi.hssf.eventusermodel.FormatTrackingHSSFListener;
import org.apache.poi.hssf.eventusermodel.HSSFEventFactory;
import org.apache.poi.hssf.eventusermodel.HSSFListener;
import org.apache.poi.hssf.eventusermodel.HSSFRequest;
import org.apache.poi.hssf.eventusermodel.MissingRecordAwareHSSFListener;
import org.apache.poi.hssf.eventusermodel.dummyrecord.LastCellOfRowDummyRecord;
import org.apache.poi.hssf.eventusermodel.dummyrecord.MissingCellDummyRecord;
import org.apache.poi.hssf.model.HSSFFormulaParser;
import org.apache.poi.hssf.record.BOFRecord;
import org.apache.poi.hssf.record.BlankRecord;
import org.apache.poi.hssf.record.BoolErrRecord;
import org.apache.poi.hssf.record.BoundSheetRecord;
import org.apache.poi.hssf.record.FormulaRecord;
import org.apache.poi.hssf.record.LabelRecord;
import org.apache.poi.hssf.record.LabelSSTRecord;
import org.apache.poi.hssf.record.NumberRecord;
import org.apache.poi.hssf.record.Record;
import org.apache.poi.hssf.record.SSTRecord;
import org.apache.poi.hssf.record.StringRecord;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import com.sjky.platform.myapp.importData.service.impl.importDataServiceimpl;
public class Excel2003Reader implements HSSFListener{
private int minColumns = -1;
private POIFSFileSystem fs;
private int lastRowNumber;
private int lastColumnNumber;
/** Should we output the formula, or the value it has? */
private boolean outputFormulaValues = true;
/** For parsing Formulas */
private SheetRecordCollectingListener workbookBuildingListener;
//excel2003工作薄
private HSSFWorkbook stubWorkbook;
// Records we pick up as we process
private SSTRecord sstRecord;
private FormatTrackingHSSFListener formatListener;
//表索引
private int sheetIndex = -1;
private BoundSheetRecord[] orderedBSRs;
@SuppressWarnings("unchecked")
private ArrayList boundSheetRecords = new ArrayList();
// For handling formulas with string results
private int nextRow;
private int nextColumn;
private boolean outputNextStringRecord;
//當(dāng)前行
private int curRow = 0;
//存儲(chǔ)行記錄的容器
private List<String> rowlist = new ArrayList<String>();;
@SuppressWarnings( "unused")
private String sheetName;
/**
* 遍歷excel下所有的sheet
* @throws IOException
*/
public void process(String fileName) throws IOException {
this.fs = new POIFSFileSystem(new FileInputStream(fileName));
MissingRecordAwareHSSFListener listener = new MissingRecordAwareHSSFListener(
this);
formatListener = new FormatTrackingHSSFListener(listener);
HSSFEventFactory factory = new HSSFEventFactory();
HSSFRequest request = new HSSFRequest();
if (outputFormulaValues) {
request.addListenerForAllRecords(formatListener);
} else {
workbookBuildingListener = new SheetRecordCollectingListener(
formatListener);
request.addListenerForAllRecords(workbookBuildingListener);
}
factory.processWorkbookEvents(request, fs);
}
/**
* HSSFListener 監(jiān)聽(tīng)方法，處理 Record
*/
@SuppressWarnings("unchecked")
public void processRecord(Record record) {
int thisRow = -1;
int thisColumn = -1;
String thisStr = null;
String value = null;
switch (record.getSid()) {
case BoundSheetRecord.sid:
boundSheetRecords.add(record);
break;
case BOFRecord.sid:
BOFRecord br = (BOFRecord) record;
if (br.getType() == BOFRecord.TYPE_WORKSHEET) {
// 如果有需要，則建立子工作薄
if (workbookBuildingListener != null && stubWorkbook == null) {
stubWorkbook = workbookBuildingListener
.getStubHSSFWorkbook();
}
sheetIndex++;
if (orderedBSRs == null) {
orderedBSRs = BoundSheetRecord
.orderByBofPosition(boundSheetRecords);
}
sheetName = orderedBSRs[sheetIndex].getSheetname();
}
break;
case SSTRecord.sid:
sstRecord = (SSTRecord) record;
break;
case BlankRecord.sid:
BlankRecord brec = (BlankRecord) record;
thisRow = brec.getRow();
thisColumn = brec.getColumn();
thisStr = "";
rowlist.add(thisColumn, thisStr);
break;
case BoolErrRecord.sid: //單元格為布爾類型
BoolErrRecord berec = (BoolErrRecord) record;
thisRow = berec.getRow();
thisColumn = berec.getColumn();
thisStr = berec.getBooleanValue()+"";
rowlist.add(thisColumn, thisStr);
break;
case FormulaRecord.sid: //單元格為公式類型
FormulaRecord frec = (FormulaRecord) record;
thisRow = frec.getRow();
thisColumn = frec.getColumn();
if (outputFormulaValues) {
if (Double.isNaN(frec.getValue())) {
// Formula result is a string
// This is stored in the next record
outputNextStringRecord = true;
nextRow = frec.getRow();
nextColumn = frec.getColumn();
} else {
thisStr = formatListener.formatNumberDateCell(frec);
}
} else {
thisStr = '"' + HSSFFormulaParser.toFormulaString(stubWorkbook,
frec.getParsedExpression()) + '"';
}
rowlist.add(thisColumn,thisStr);
break;
case StringRecord.sid://單元格中公式的字符串
if (outputNextStringRecord) {
// String for formula
StringRecord srec = (StringRecord) record;
thisStr = srec.getString();
thisRow = nextRow;
thisColumn = nextColumn;
outputNextStringRecord = false;
}
break;
case LabelRecord.sid:
LabelRecord lrec = (LabelRecord) record;
curRow = thisRow = lrec.getRow();
thisColumn = lrec.getColumn();
value = lrec.getValue().trim();
value = value.equals("")?" ":value;
this.rowlist.add(thisColumn, value);
break;
case LabelSSTRecord.sid: //單元格為字符串類型
LabelSSTRecord lsrec = (LabelSSTRecord) record;
curRow = thisRow = lsrec.getRow();
thisColumn = lsrec.getColumn();
if (sstRecord == null) {
rowlist.add(thisColumn, " ");
} else {
value = sstRecord
.getString(lsrec.getSSTIndex()).toString().trim();
value = value.equals("")?" ":value;
rowlist.add(thisColumn,value);
}
break;
case NumberRecord.sid: //單元格為數(shù)字類型
NumberRecord numrec = (NumberRecord) record;
curRow = thisRow = numrec.getRow();
thisColumn = numrec.getColumn();
value = formatListener.formatNumberDateCell(numrec).trim();
value = value.equals("")?" ":value;
// 向容器加入列值
rowlist.add(thisColumn, value);
break;
default:
break;
}
// 遇到新行的操作
if (thisRow != -1 && thisRow != lastRowNumber) {
lastColumnNumber = -1;
}
// 空值的操作
if (record instanceof MissingCellDummyRecord) {
MissingCellDummyRecord mc = (MissingCellDummyRecord) record;
curRow = thisRow = mc.getRow();
thisColumn = mc.getColumn();
rowlist.add(thisColumn," ");
}
// 更新行和列的值
if (thisRow > -1)
lastRowNumber = thisRow;
if (thisColumn > -1)
lastColumnNumber = thisColumn;
// 行結(jié)束時(shí)的操作
if (record instanceof LastCellOfRowDummyRecord) {
if (minColumns > 0) {
// 列值重新置空
if (lastColumnNumber == -1) {
lastColumnNumber = 0;
}
}
lastColumnNumber = -1;
// 每行結(jié)束時(shí)， 調(diào)用getRows() 方法
importDataServiceimpl importMbrServiceimpl = new importDataServiceimpl();
try {
//importMbrServiceimpl.getRows(sheetIndex,curRow, rowlist);
} catch (Exception e) {
e.printStackTrace();
}
// 清空容器
rowlist.clear();
}
}
}
處理Excel2007的工具類
package com.sjky.platform.myapp.importData.utils;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.xssf.eventusermodel.XSSFReader;
import org.apache.poi.xssf.model.SharedStringsTable;
import org.apache.poi.xssf.usermodel.XSSFRichTextString;
import org.springframework.web.multipart.MultipartFile;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
import com.sjky.platform.myapp.importData.service.impl.importDataServiceimpl;
/**
* 抽象Excel2007讀取器，excel2007的底層數(shù)據(jù)結(jié)構(gòu)是xml文件，采用SAX的事件驅(qū)動(dòng)的方法解析
* xml，需要繼承DefaultHandler，在遇到文件內(nèi)容時(shí)，事件會(huì)觸發(fā)，這種做法可以大大降低
* 內(nèi)存的耗費(fèi)，特別使用于大數(shù)據(jù)量的文件。
*
*/
public class Excel2007Reader extends DefaultHandler {
//共享字符串表
private SharedStringsTable sst;
//上一次的內(nèi)容
private String lastContents;
//判斷是否是String
private boolean nextIsString;
//記錄行數(shù)
private int sheetIndex = -1;
//每行結(jié)果集
private List<String> rowlist = new ArrayList<String>();
//整個(gè)Excel的集合
private List<List<String>> excelList = new ArrayList<List<String>>();
//判斷是否是空單元格
private boolean cellNull;
//當(dāng)前行
private int curRow = 0;
//當(dāng)前列
private int curCol = 0;
//有效數(shù)據(jù)矩形區(qū)域,A1:Y2
private String dimension;
//根據(jù)dimension得出每行的數(shù)據(jù)長(zhǎng)度
private int longest;
//上個(gè)有內(nèi)容的單元格id，判斷空單元格
private String lastCellid;
//處理單行數(shù)據(jù)的類
private importDataServiceimpl importService;
private boolean isTElement;
public void setImpotService(importDataServiceimpl importService){
this.importService = importService;
}
/**只遍歷一個(gè)電子表格，其中sheetId為要遍歷的sheet索引，從1開(kāi)始，1-3
* @param filename
* @param sheetId
* @throws Exception
*/
public void processOneSheet(String filename,int sheetId) throws Exception {
OPCPackage pkg = OPCPackage.open(filename);
XSSFReader r = new XSSFReader(pkg);
SharedStringsTable sst = r.getSharedStringsTable();
XMLReader parser = fetchSheetParser(sst);
// 根據(jù) rId# 或 rSheet# 查找sheet
InputStream sheet2 = r.getSheet("rId"+sheetId);
sheetIndex++;
InputSource sheetSource = new InputSource(sheet2);
parser.parse(sheetSource);
sheet2.close();
}
/**
* 遍歷工作簿中所有的電子表格
* @param multipartFile
* @throws Exception
*/
public void process(MultipartFile multipartFile) throws Exception {
//或得文件流
InputStream in = multipartFile.getInputStream();
//獲取實(shí)例對(duì)象
OPCPackage pkg = OPCPackage.open(in);
XSSFReader r = new XSSFReader(pkg);
SharedStringsTable sst = r.getSharedStringsTable();
XMLReader parser = fetchSheetParser(sst);
Iterator<InputStream> sheets = r.getSheetsData();
while (sheets.hasNext()) {
curRow = 0;
sheetIndex++;
InputStream sheet = sheets.next();
//查看轉(zhuǎn)換的xml原始文件，方便理解后面解析時(shí)的處理,
// 注意：如果打開(kāi)注釋，下面parse()就讀不到流的內(nèi)容了
// this.streamOut(in);
InputSource sheetSource = new InputSource(sheet);
//據(jù)說(shuō)當(dāng)執(zhí)行這個(gè)方法時(shí) 自動(dòng)觸發(fā) startElement(開(kāi)始的元素) endElement(結(jié)束的元素)
parser.parse(sheetSource);
sheet.close();
}
}
//讀取流，查看文件內(nèi)容
public static void streamOut(InputStream in) throws Exception{
byte[] buf = new byte[1024];
int len;
while ((len=in.read(buf))!=-1){
System.out.write(buf,0,len);
}
}
public XMLReader fetchSheetParser(SharedStringsTable sst)
throws SAXException {
XMLReader parser = XMLReaderFactory
.createXMLReader("org.apache.xerces.parsers.SAXParser");
this.sst = sst;
parser.setContentHandler(this);
return parser;
}
/*
name Excel轉(zhuǎn)xml后的開(kāi)始標(biāo)簽 這個(gè)方法 可以把參數(shù)都打出來(lái)看看
*/
public void startElement(String uri, String localName, String name,
Attributes attributes) throws SAXException {
if (name.equals("dimension")){
dimension = attributes.getValue("ref");
longest = covertRowIdtoInt(dimension.substring(dimension.indexOf(":")+1) );
}
// c => 表示是不是單元格 row=><row>:開(kāi)始處理某一行 isTextTag(name)<v>:單元格值
if ("c".equals(name)) {
//當(dāng)前單元格的位置
String cellId = attributes.getValue("r");
//空單元判斷，添加空字符到list
if (lastCellid!=null)
{
int gap = covertRowIdtoInt(cellId)-covertRowIdtoInt(lastCellid);
for(int i=0;i<gap-1;i++)
{
rowlist.add(curCol, "");
curCol++;
}
}else{
//第一個(gè)單元格可能不是在第一列
if (!"A1".equals(cellId))
{
for(int i=0;i<covertRowIdtoInt(cellId)-1;i++)
{
rowlist.add(curCol, "");
curCol++;
}
}
}
lastCellid = cellId;
// 如果下一個(gè)元素是 SST 的索引，則將nextIsString標(biāo)記為true
//判斷單元格的值是SST 的索引，不能直接characters方法取值
if (attributes.getValue("t")!=null && attributes.getValue("t").equals("s"))
{
nextIsString = true;
cellNull=false;
}else{
nextIsString = false;
cellNull=true;
}
}
//當(dāng)元素為t時(shí)
if("t".equals(name)){
isTElement = true;
} else {
isTElement = false;
}
// 置空
lastContents = "";
}
public void endElement(String uri, String localName, String name)
throws SAXException {
// 根據(jù)SST的索引值的到單元格的真正要存儲(chǔ)的字符串
// 這時(shí)characters()方法可能會(huì)被調(diào)用多次
if (nextIsString) {
try {
int idx = Integer.parseInt(lastContents);
lastContents = new XSSFRichTextString(sst.getEntryAt(idx)).toString().trim();
} catch (Exception e) {
}
}
//t元素也包含字符串
if(isTElement){
String value = lastContents;
value = value.equals("")?" ":value;
rowlist.add(curCol, value);
curCol++;
isTElement = false;
// v => 單元格的值，如果單元格是字符串則v標(biāo)簽的值為該字符串在SST中的索引
// 將單元格內(nèi)容加入rowlist中，在這之前先去掉字符串前后的空白符
} else if ("v".equals(name)) {
String value = lastContents;
value = value.equals("")?" ":value;
cellNull=false;
rowlist.add(curCol, value);
curCol++;
}
else if("c".equals(name) && cellNull == true){
rowlist.add(curCol, "");
curCol++;
cellNull = false;
}else {
//如果標(biāo)簽名稱為 row ，這說(shuō)明已到行尾，調(diào)用 optRows() 方法
if (name.equals("row")) {
//大于0的判斷主要是篩除表頭信息 這里具體看你想要的信息在哪一行開(kāi)始
if(curRow>0){
//判斷最后一個(gè)單元格是否在最后，補(bǔ)齊列數(shù)
if(covertRowIdtoInt(lastCellid)<longest){
for(int i=0;i<longest- covertRowIdtoInt(lastCellid);i++)
{
rowlist.add(curCol, "");
curCol++;
}
}
//將此行放入一個(gè)大集合
excelList.add(rowlist);
}
rowlist=new ArrayList<String>();
curRow++;
curCol = 0;
}else if(name.equals("worksheet")){
//結(jié)束標(biāo)簽為worksheet說(shuō)明工作簿sheet讀取完成
//調(diào)用要處理的方法
importService.getRows(excelList);
}
}
}
public void characters(char[] ch, int start, int length)
throws SAXException {
//得到單元格內(nèi)容的值
lastContents += new String(ch, start, length);
}
/**
* 列號(hào)轉(zhuǎn)數(shù)字 AB7-->28 第28列
* @param cellId
* @return
*/
public static int covertRowIdtoInt(String cellId){
int firstDigit = -1;
for (int c = 0; c < cellId.length(); ++c) {
if (Character.isDigit(cellId.charAt(c))) {
firstDigit = c;
break;
}
}
//AB7-->AB
//AB是列號(hào), 7是行號(hào)
String newRowId = cellId.substring(0,firstDigit);
int num = 0;
int result = 0;
int length = newRowId.length();
for(int i = 0; i < length; i++) {
//先取最低位，B
char ch = newRowId.charAt(length - i - 1);
//B表示的十進(jìn)制2，ascii碼相減，以A的ascii碼為基準(zhǔn)，A表示1，B表示2
num = (int)(ch - 'A' + 1) ;
//列號(hào)轉(zhuǎn)換相當(dāng)于26進(jìn)制數(shù)轉(zhuǎn)10進(jìn)制
num *= Math.pow(26, i);
result += num;
}
return result;
}
}
浪客行1213的簡(jiǎn)書
xhh
