apache官方的链接，看了几遍还是觉得很模糊，如果有相关的资料，请推荐一下。
https://poi.apache.org/spreadsheet/examples.html
https://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/xssf/eventusermodel/XLSX2CSV.java
https://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/hssf/eventusermodel/examples/XLS2CSVmra.java
xls和xlsx在usermodel下可以用同一套代码处理，eventUserModel好像不行。不过速度真的很快，2，3 秒就可以处理300多条数据。
处理xlsx如下：
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.openxml4j.exceptions.OpenXML4JException;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.PackageAccess;
import org.apache.poi.ss.usermodel.BuiltinFormats;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.xssf.eventusermodel.ReadOnlySharedStringsTable;
import org.apache.poi.xssf.eventusermodel.XSSFReader;
import org.apache.poi.xssf.model.StylesTable;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFRichTextString;
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;
/**
* 使用CVS模式解决XLSX文件，可以有效解决用户模式内存溢出的问题
* 该模式是POI官方推荐的读取大数据的模式，在用户模式下，数据量较大、Sheet较多、或者是有很多无用的空行的情况
* ，容易出现内存溢出,用户模式读取Excel的典型代码如下： FileInputStream file=new
* FileInputStream("c:\\test.xlsx"); Workbook wb=new XSSFWorkbook(file);
*
*
*/
public class XLSXCovertCSVReader {
/**
* The type of the data value is indicated by an attribute on the cell. The
* value is usually in a "v" element within the cell.
*/
enum xssfDataType {
BOOL, ERROR, FORMULA, INLINESTR, SSTINDEX, NUMBER,
}
/**
* 使用xssf_sax_API处理Excel,请参考： http://poi.apache.org/spreadsheet/how-to.html#xssf_sax_api
* <p/>
* Also see Standard ECMA-376, 1st edition, part 4, pages 1928ff, at
* http://www.ecma-international.org/publications/standards/Ecma-376.htm
* <p/>
* A web-friendly version is http://openiso.org/Ecma/376/Part4
*/
class MyXSSFSheetHandler extends DefaultHandler {
// private XSSFFormulaEvaluator evaluator;
/**
* Table with styles
*/
private StylesTable stylesTable;
/**
* Table with unique strings
*/
private ReadOnlySharedStringsTable sharedStringsTable;
/**
* Destination for data
*/
private final PrintStream output;
/**
* Number of columns to read starting with leftmost
*/
private final int minColumnCount;
// Set when V start element is seen
private boolean vIsOpen;
// Set when cell start element is seen;
// used when cell close element is seen.
private xssfDataType nextDataType;
// Used to format numeric cell values.
private short formatIndex;
private String formatString;
private final DataFormatter formatter;
private int thisColumn = -1; // 当前列
private int requireHeadColumn = 99; // 需求标题所在列
private int exTaskHead = 99; //任务标题所在列
private List<String> nullRowList; // 包含"需求标题", "任务标题"
// The last column printed to the output stream
private int lastColumnNumber = -1;
// Gathers characters as they are seen.
private StringBuffer value;
private String[] record;
private List<String[]> rows = new ArrayList<String[]>();
private boolean isCellNull = false;
/**
* Accepts objects needed while parsing.
*
* @param styles
* Table of styles
* @param strings
* Table of shared strings
* @param cols
* Minimum number of columns to show
* @param target
* Sink for output
*/
public MyXSSFSheetHandler(StylesTable styles,
ReadOnlySharedStringsTable strings, int cols, PrintStream target, List<String> nullRowList) {
this.stylesTable = styles;
this.sharedStringsTable = strings;
this.minColumnCount = cols;
this.output = target;
this.value = new StringBuffer();
this.nextDataType = xssfDataType.NUMBER;
this.formatter = new DataFormatter();
// record = new String[100];
record = new String[this.minColumnCount];
rows.clear();// 每次读取都清空行集合
this.nullRowList = nullRowList;
}
/*
* (non-Javadoc)
*
* @see
* org.xml.sax.helpers.DefaultHandler#startElement(java.lang.String,
* java.lang.String, java.lang.String, org.xml.sax.Attributes)
*/
public void startElement(String uri, String localName, String name,
Attributes attributes) throws SAXException {
if ("inlineStr".equals(name) || "v".equals(name)) {
vIsOpen = true;
// Clear contents cache
value.setLength(0);
}
// else if("f".equals(name)) {
// nextDataType = xssfDataType.FORMULA;
// }
// c => cell
else if ("c".equals(name)) {
// Get the cell reference
String r = attributes.getValue("r");
int firstDigit = -1;
for (int c = 0; c < r.length(); ++c) {
if (Character.isDigit(r.charAt(c))) {
firstDigit = c;
break;
}
}
thisColumn = nameToColumn(r.substring(0, firstDigit));
// Set up defaults.
this.nextDataType = xssfDataType.NUMBER;
this.formatIndex = -1;
this.formatString = null;
String cellType = attributes.getValue("t");
String cellStyleStr = attributes.getValue("s");
// int styleIndex2 = Integer.parseInt(cellStyleStr);
// XSSFCellStyle style2 = stylesTable.getStyleAt(styleIndex2);
// System.out.println("styleDataFormat:" + style2.getDataFormat());
if ("b".equals(cellType))
nextDataType = xssfDataType.BOOL;
else if ("e".equals(cellType))
nextDataType = xssfDataType.ERROR;
else if ("inlineStr".equals(cellType))
nextDataType = xssfDataType.INLINESTR;
else if ("s".equals(cellType))
nextDataType = xssfDataType.SSTINDEX;
else if ("str".equals(cellType))
nextDataType = xssfDataType.FORMULA;
else if (cellStyleStr != null) {
// It's a number, but almost certainly one
// with a special style or format
int styleIndex = Integer.parseInt(cellStyleStr);
XSSFCellStyle style = stylesTable.getStyleAt(styleIndex);
this.formatIndex = style.getDataFormat();
this.formatString = style.getDataFormatString();
if (this.formatString == null)
this.formatString = BuiltinFormats
.getBuiltinFormat(this.formatIndex);
}
}
}
/*
* (non-Javadoc)
*
* @see org.xml.sax.helpers.DefaultHandler#endElement(java.lang.String,
* java.lang.String, java.lang.String)
*/
public void endElement(String uri, String localName, String name)
throws SAXException {
String thisStr = null;
// v => contents of a cell
if ("v".equals(name)) {
// Process the value contents as required.
// Do now, as characters() may be called more than once
switch (nextDataType) {
case BOOL:
char first = value.charAt(0);
thisStr = first == '0' ? "FALSE" : "TRUE";
break;
case ERROR:
thisStr = "ERROR:" + value.toString();
break;
case FORMULA:
// A formula could result in a string value,
// so always add double-quote characters.
thisStr = value.toString();
break;
case INLINESTR:
// TODO: have seen an example of this, so it's untested.
XSSFRichTextString rtsi = new XSSFRichTextString(
value.toString());
thisStr = rtsi.toString();
break;
case SSTINDEX:
String sstIndex = value.toString();
try {
int idx = Integer.parseInt(sstIndex);
XSSFRichTextString rtss = new XSSFRichTextString(
sharedStringsTable.getEntryAt(idx));
thisStr = rtss.toString();
} catch (NumberFormatException ex) {
output.println("Failed to parse SST index '" + sstIndex
+ "': " + ex.toString());
}
break;
case NUMBER:
String n = value.toString();
// 判断是否是日期格式
if (HSSFDateUtil.isADateFormat(this.formatIndex, n)) {
Double d = Double.parseDouble(n);
Date date=HSSFDateUtil.getJavaDate(d);
thisStr=formateDateToString(date);
} else if (this.formatString != null)
thisStr = formatter.formatRawCellContents(
Double.parseDouble(n), this.formatIndex,
this.formatString);
else
thisStr = n;
break;
default:
thisStr = "(TODO: Unexpected type: " + nextDataType + ")";
break;
}
// Output after we've seen the string contents
// Emit commas for any fields that were missing on this row
if (lastColumnNumber == -1) {
lastColumnNumber = 0;
}
//判断单元格的值是否为空
if (thisStr == null || "".equals(isCellNull)) {
isCellNull = true;// 设置单元格是否为空值
}
// 判断 单元格内容是否为 "需求标题"
if(nullRowList.get(0).equals(thisStr)) {
// 记录需求标题所在列
requireHeadColumn = thisColumn;
System.out.println("requireTitleColumn:" + requireHeadColumn);
}
// 判断 单元格内容是否为 "任务标题"
if(nullRowList.get(1).equals(thisStr)) {
// 记录任务标题所在列
exTaskHead = thisColumn;
System.out.println("exTaskHead:" + exTaskHead);
}
record[thisColumn] = thisStr;
// Update column
if (thisColumn > -1) {
lastColumnNumber = thisColumn;
}
// System.out.println("thisStr:" + thisStr);
} else if ("row".equals(name)) {
// Print out any missing commas if needed
if (minColumns > 0) {
// Columns are 0 based
if (lastColumnNumber == -1) {
lastColumnNumber = 0;
}
if (isCellNull == false &&
(record[requireHeadColumn] != null && !"".equals(record[requireHeadColumn].trim())) ||
(record[exTaskHead] != null && !"".equals(record[exTaskHead].trim())))// 判断是否空行
{
rows.add(record.clone());
isCellNull = false;
for (int i = 0; i < record.length; i++) {
record[i] = null;
}
}
}
lastColumnNumber = -1;
}
}
public List<String[]> getRows() {
return rows;
}
public void setRows(List<String[]> rows) {
this.rows = rows;
}
/**
* Captures characters only if a suitable element is open. Originally
* was just "v"; extended for inlineStr also.
*/
public void characters(char[] ch, int start, int length)
throws SAXException {
if (vIsOpen)
value.append(ch, start, length);
}
/**
* Converts an Excel column name like "C" to a zero-based index.
*
* @param name
* @return Index corresponding to the specified name
*/
private int nameToColumn(String name) {
int column = -1;
for (int i = 0; i < name.length(); ++i) {
int c = name.charAt(i);
column = (column + 1) * 26 + c - 'A';
}
return column;
}
private String formateDateToString(Date date) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");//格式化日期
return sdf.format(date);
}
}
// /////////////////////////////////////
private OPCPackage xlsxPackage;
private int minColumns;
private PrintStream output;
private String sheetName;
/**
* Creates a new XLSX -> CSV converter
*
* @param pkg
* The XLSX package to process
* @param output
* The PrintStream to output the CSV to
* @param minColumns
* The minimum number of columns to output, or -1 for no minimum
*/
public XLSXCovertCSVReader(OPCPackage pkg, PrintStream output,
String sheetName, int minColumns) {
this.xlsxPackage = pkg;
this.output = output;
this.minColumns = minColumns;
this.sheetName = sheetName;
}
/**
* Parses and shows the content of one sheet using the specified styles and
* shared-strings tables.
*
* @param styles
* @param strings
* @param sheetInputStream
*/
public List<String[]> processSheet(StylesTable styles,
ReadOnlySharedStringsTable strings, InputStream sheetInputStream, List<String> nullRowList)
throws IOException, ParserConfigurationException, SAXException {
InputSource sheetSource = new InputSource(sheetInputStream);
SAXParserFactory saxFactory = SAXParserFactory.newInstance();
SAXParser saxParser = saxFactory.newSAXParser();
XMLReader sheetParser = saxParser.getXMLReader();
MyXSSFSheetHandler handler = new MyXSSFSheetHandler(styles, strings,
this.minColumns, this.output, nullRowList);
sheetParser.setContentHandler(handler);
sheetParser.parse(sheetSource);
return handler.getRows();
}
/**
* 初始化这个处理程序 将
*
* @throws IOException
* @throws OpenXML4JException
* @throws ParserConfigurationException
* @throws SAXException
*/
public List<String[]> process(List<String> nullRowList) throws IOException, OpenXML4JException,
ParserConfigurationException, SAXException {
ReadOnlySharedStringsTable strings = new ReadOnlySharedStringsTable(
this.xlsxPackage);
XSSFReader xssfReader = new XSSFReader(this.xlsxPackage);
List<String[]> list = null;
StylesTable styles = xssfReader.getStylesTable();
XSSFReader.SheetIterator iter = (XSSFReader.SheetIterator) xssfReader.getSheetsData();
int index = 0;
while (iter.hasNext()) {
InputStream stream = iter.next();
String sheetNameTemp = iter.getSheetName();
if (this.sheetName.equals(sheetNameTemp)) {
list = processSheet(styles, strings, stream, nullRowList);
stream.close();
++index;
}
}
return list;
}
/**
* 读取Excel
*
* @param path
* 文件路径
* @param sheetName
* sheet名称
* @param minColumns
* 列总数
* @return
* @throws SAXException
* @throws ParserConfigurationException
* @throws OpenXML4JException
* @throws IOException
*/
public static List<String[]> readerExcel(String path, String sheetName, List<String> nullRowList) throws IOException, OpenXML4JException,
ParserConfigurationException, SAXException {
OPCPackage p = OPCPackage.open(path, PackageAccess.READ);
XLSXCovertCSVReader xlsx2csv = new XLSXCovertCSVReader(p, System.out,
sheetName, 100);
List<String[]> list = xlsx2csv.process(nullRowList);
p.close();
return list;
}
public static void main(String[] args) throws Exception {
long a=System.currentTimeMillis();
List<String> nullRowList = new ArrayList<>();
nullRowList.add("需求标题");
nullRowList.add("任务标题");
List<String[]> list = XLSXCovertCSVReader
.readerExcel(
"C:/Users/Administrator/Desktop/说明文档2/文档标准/2017ttt.xlsx",
"未安排", nullRowList);
// List<String[]> list = XLSXCovertCSVReader
// .readerExcel(
// "C:/Users/Administrator/Desktop/说明文档2/2017需求列表.xlsx",
// "需求矩阵");
// List<String[]> list = XLSXCovertCSVReader
// .readerExcel(
// "D:/profiles/sts-bundle/workspace20170628/ermss/target/classes/bbb.xlsx",
// "月版本和周版本");
List<Map<String, String>> resultList = new LinkedList<Map<String, String>>();
for (int i=0; i<list.size(); i++) {
Map<String, String> valueMap = new HashMap<String, String>();
for (int j=0; j<list.get(i).length; j++) {
if(list.get(0)[j] != null && !"".equals(list.get(0)[j])) {
valueMap.put(list.get(0)[j], list.get(i)[j]);
}
}
// 只获取数据，不要标题
if(i > 0) {
resultList.add(valueMap);
}
}
System.out.println("resultList.size()：" + resultList);
System.out.println("执行耗时 :"+(System.currentTimeMillis()-a)/1000f+" 秒 ");
}
}
处理xlx如下：
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
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.CellValueRecordInterface;
import org.apache.poi.hssf.record.ExtendedFormatRecord;
import org.apache.poi.hssf.record.FormatRecord;
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.NoteRecord;
import org.apache.poi.hssf.record.NumberRecord;
import org.apache.poi.hssf.record.RKRecord;
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.HSSFDataFormat;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.formula.SheetNameFormatter;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.util.POILogger;
/**
* A XLS -> CSV processor, that uses the MissingRecordAware
* EventModel code to ensure it outputs all columns and rows.
* @author Nick Burch
*/
public class XLS2CSVmra implements HSSFListener {
private int minColumns;
private POIFSFileSystem fs;
private PrintStream output;
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;
private HSSFWorkbook stubWorkbook;
// Records we pick up as we process
private SSTRecord sstRecord;
private FormatTrackingHSSFListener formatListener;
/** So we known which sheet we're on */
private int sheetIndex = -1;
private BoundSheetRecord[] orderedBSRs;
private List<BoundSheetRecord> boundSheetRecords = new ArrayList<BoundSheetRecord>();
// For handling formulas with string results
private int nextRow;
private int nextColumn;
private boolean outputNextStringRecord;
String[] recordArray = new String[100]; ; // 每行为一个数组
List<String[]> rowsList = new ArrayList<String[]>(); //当前sheet页的所有行
private int requireHeadColumn = 99; // 需求标题所在列
private int exTaskHead = 99; //任务标题所在列
private List<String> nullRowList; // 包含"需求标题", "任务标题"
private String sheetName = "";
private final List<ExtendedFormatRecord> _xfRecords = new ArrayList<ExtendedFormatRecord>();
private final Map<Integer, FormatRecord> _customFormatRecords = new HashMap<Integer, FormatRecord>();
/**
* Creates a new XLS -> CSV converter
* @param fs The POIFSFileSystem to process
* @param output The PrintStream to output the CSV to
* @param minColumns The minimum number of columns to output, or -1 for no minimum
*/
public XLS2CSVmra(POIFSFileSystem fs, PrintStream output, List<String> nullRowList, String sheetName) {
this.fs = fs;
this.output = output;
this.minColumns = 100;
this.nullRowList = nullRowList;
this.sheetName = sheetName;
}
/**
* Creates a new XLS -> CSV converter
* @param filename The file to process
* @param minColumns The minimum number of columns to output, or -1 for no minimum
* @throws IOException
* @throws FileNotFoundException
*/
public XLS2CSVmra(String filename, String sheetName, List<String> nullRowList) throws IOException, FileNotFoundException {
this(new POIFSFileSystem(new FileInputStream(filename)), System.out, nullRowList, sheetName);
}
/**
* Initiates the processing of the XLS file to CSV
*/
public List<String[]> readerExcel() throws IOException {
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);
return rowsList;
}
/**
* Main HSSFListener method, processes events, and outputs the
* CSV as the file is processed.
*/
@Override
public void processRecord(Record record) {
int thisRow = -1;
int thisColumn = -1; // 当前cell所在列
String thisStr = null; // 单元格内容
processRecordInternally(record);
switch (record.getSid()) {
case BoundSheetRecord.sid:
boundSheetRecords.add((BoundSheetRecord)record);
break;
case BOFRecord.sid:
BOFRecord br = (BOFRecord)record;
if(br.getType() == BOFRecord.TYPE_WORKSHEET) {
// Create sub workbook if required
if(workbookBuildingListener != null && stubWorkbook == null) {
stubWorkbook = workbookBuildingListener.getStubHSSFWorkbook();
}
// Output the worksheet name
// Works by ordering the BSRs by the location of
// their BOFRecords, and then knowing that we
// process BOFRecords in byte offset order
sheetIndex++;
if(orderedBSRs == null) {
orderedBSRs = BoundSheetRecord.orderByBofPosition(boundSheetRecords);
}
// output.println();
//output.println(orderedBSRs[sheetIndex].getSheetname() +" [" + (sheetIndex+1) + "]:");
}
break;
case SSTRecord.sid:
sstRecord = (SSTRecord) record;
break;
case BlankRecord.sid:
BlankRecord brec = (BlankRecord) record;
thisRow = brec.getRow();
thisColumn = brec.getColumn();
thisStr = "";
break;
case BoolErrRecord.sid:
BoolErrRecord berec = (BoolErrRecord) record;
thisRow = berec.getRow();
thisColumn = berec.getColumn();
thisStr = "";
break;
case FormulaRecord.sid:
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());
}
break;
case StringRecord.sid:
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;
thisRow = lrec.getRow();
thisColumn = lrec.getColumn();
thisStr = lrec.getValue();
break;
case LabelSSTRecord.sid:
LabelSSTRecord lsrec = (LabelSSTRecord) record;
thisRow = lsrec.getRow();
thisColumn = lsrec.getColumn();
if(sstRecord == null) {
thisStr ="(No SST Record, can't identify string)";
} else {
thisStr = sstRecord.getString(lsrec.getSSTIndex()).toString();
}
break;
case NoteRecord.sid:
NoteRecord nrec = (NoteRecord) record;
thisRow = nrec.getRow();
thisColumn = nrec.getColumn();
// TODO: Find object to match nrec.getShapeId()
thisStr = "(TODO)";
break;
case NumberRecord.sid:
NumberRecord numrec = (NumberRecord) record;
thisRow = numrec.getRow();
thisColumn = numrec.getColumn();
// Format
thisStr = formatNumberDateCell(numrec);
// thisStr = formatListener.formatNumberDateCell(numrec);
break;
case RKRecord.sid:
RKRecord rkrec = (RKRecord) record;
thisRow = rkrec.getRow();
thisColumn = rkrec.getColumn();
thisStr = "(TODO)";
break;
default:
break;
}
// Handle new row
if(thisRow != -1 && thisRow != lastRowNumber) {
lastColumnNumber = -1;
}
// Handle missing column
if(record instanceof MissingCellDummyRecord) {
MissingCellDummyRecord mc = (MissingCellDummyRecord)record;
thisRow = mc.getRow();
thisColumn = mc.getColumn();
thisStr = "";
}
// If we got something to print out, do so
if(thisStr != null) {
if(thisColumn > 0) {
output.print(',');
}
// 判断 单元格内容是否为 "需求标题"
if(nullRowList.get(0).equals(thisStr)) {
// 记录需求标题所在列
requireHeadColumn = thisColumn;
System.out.println("requireTitleColumn:" + requireHeadColumn);
}
// 判断 单元格内容是否为 "任务标题"
if(nullRowList.get(1).equals(thisStr)) {
// 记录任务标题所在列
exTaskHead = thisColumn;
System.out.println("exTaskHead:" + exTaskHead);
}
// output.print(thisStr);
recordArray[thisColumn] = thisStr;
}
// Update column and row count
if(thisRow > -1)
lastRowNumber = thisRow;
if(thisColumn > -1)
lastColumnNumber = thisColumn;
// Handle end of row
if(record instanceof LastCellOfRowDummyRecord) {
// Print out any missing commas if needed
if(minColumns > 0) {
// Columns are 0 based
if(lastColumnNumber == -1) { lastColumnNumber = 0; }
for(int i=lastColumnNumber; i<(minColumns); i++) {
// output.print(',');
}
// 判断是不是指定sheet页下的内容
if(sheetName.equals(orderedBSRs[sheetIndex].getSheetname())) {
// 判断是否空行
if ((recordArray[requireHeadColumn] != null && !"".equals(recordArray[requireHeadColumn].trim())) ||
(recordArray[exTaskHead] != null && !"".equals(recordArray[exTaskHead].trim()))) {
output.println();
rowsList.add(recordArray.clone());
for (int i = 0; i < recordArray.length; i++) {
recordArray[i] = null;
}
}
}
}
lastColumnNumber = -1;
}
}
public int getFormatIndex(CellValueRecordInterface cell) {
ExtendedFormatRecord xfr = _xfRecords.get(cell.getXFIndex());
if (xfr == null) {
return -1;
}
return xfr.getFormatIndex();
}
public String formatNumberDateCell(CellValueRecordInterface cell) {
double value;
if (cell instanceof NumberRecord) {
value = ((NumberRecord) cell).getValue();
} else if (cell instanceof FormulaRecord) {
value = ((FormulaRecord) cell).getValue();
} else {
throw new IllegalArgumentException("Unsupported CellValue Record passed in " + cell);
}
// Format, using the nice new
// HSSFDataFormatter to do the work for us"yyyy/MM/dd"
DataFormatter _formatter = new DataFormatter();
return _formatter.formatRawCellContents(value, getFormatIndex(cell), getFormatString(cell));
}
public String getFormatString(CellValueRecordInterface cell) {
int formatIndex = getFormatIndex(cell);
if (formatIndex == -1) {
// Not found
return null;
}
return getFormatString(formatIndex);
}
public String getFormatString(int formatIndex) {
String format = null;
if (formatIndex >= HSSFDataFormat.getNumberOfBuiltinBuiltinFormats()) {
FormatRecord tfr = _customFormatRecords.get(Integer.valueOf(formatIndex));
if (tfr == null) {
} else {
format = tfr.getFormatString();
}
} else if(formatIndex == 14) {
format = "yyyy/MM/dd";
} else {
// "yyyy/MM/dd"
format = HSSFDataFormat.getBuiltinFormat((short) formatIndex);
}
return format;
}
public void processRecordInternally(Record record) {
if (record instanceof FormatRecord) {
FormatRecord fr = (FormatRecord) record;
_customFormatRecords.put(Integer.valueOf(fr.getIndexCode()), fr);
}
if (record instanceof ExtendedFormatRecord) {
ExtendedFormatRecord xr = (ExtendedFormatRecord) record;
_xfRecords.add(xr);
}
}
public static void main(String[] args) throws Exception {
List<String> nullRowList = new ArrayList<>();
nullRowList.add("需求内容");
nullRowList.add("任务标题");
XLS2CSVmra xls2csv = new XLS2CSVmra(
"C:/Users/Administrator/Desktop/说明文档2/XXX.xls",
"电销系统", nullRowList);
List<String[]> list = xls2csv.readerExcel();
List<Map<String, String>> resultList = new LinkedList<Map<String, String>>();
for (int i=0; i<list.size(); i++) {
Map<String, String> valueMap = new HashMap<String, String>();
for (int j=0; j<list.get(i).length; j++) {
if(list.get(0)[j] != null && !"".equals(list.get(0)[j])) {
valueMap.put(list.get(0)[j], list.get(i)[j]);
}
}
// 只获取数据，不要标题
if(i > 0) {
resultList.add(valueMap);
}
}
System.out.println("\nresultList.size()：" + resultList.size());
System.out.println("\nresultList：" + resultList);
}
}
