2019. 7. 16. 16:52
DefaultHandler를 가지고 Handler 구성 읽은 엑셀파일 내용을 List<String []> rows 에 저장
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.apache.poi.ss.usermodel.BuiltinFormats;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.xssf.model.SharedStringsTable;
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.SAXException;
import org.xml.sax.helpers.DefaultHandler;
/**
* Created by shea on 2018/10/12.
*/
public class MyHandler extends DefaultHandler {
enum xssfDataType {
BOOL, ERROR, FORMULA, INLINESTR, SSTINDEX, NUMBER,
}
/**
* Table with styles
*/
private StylesTable stylesTable;
private SharedStringsTable sharedStringsTable;
private int minColumnCount;
private boolean vIsOpen;
private xssfDataType nextDataType;
private short formatIndex;
private String formatString;
private DataFormatter formatter;
private int thisColumn = -1;
// 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;
private SimpleDateFormat sdf = null;
private static DecimalFormat df = new DecimalFormat("###########");
//构造器
public MyHandler(StylesTable styles,
SharedStringsTable strings, int cols) {
this.stylesTable = styles;
this.sharedStringsTable = strings;
this.minColumnCount = cols;
this.value = new StringBuffer();
this.nextDataType = xssfDataType.NUMBER;
this.formatter = new DataFormatter();
record = new String[this.minColumnCount];
rows.clear();
}
public void startElement(String uri, String localName, String name,
Attributes attributes) throws SAXException {
if ("inlineStr".equals(name) || "v".equals(name)) {
vIsOpen = true;
value.setLength(0);
}
// 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");
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);
}
}
}
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) {
System.out.println("Failed to parse SST index '" + sstIndex
+ "': " + ex.toString());
}
break;
case NUMBER:
String n = value.toString();
if (formatIndex == 14 || formatIndex == 31 || formatIndex == 57 || formatIndex == 58
|| (176<=formatIndex && formatIndex<=178) || (182<=formatIndex && formatIndex<=196)
|| (210<=formatIndex && formatIndex<=213) || (208==formatIndex ) ) {// 日期
sdf = new SimpleDateFormat("yyyy-MM-dd");
Date date = org.apache.poi.ss.usermodel.DateUtil.getJavaDate(Double.parseDouble(n));
thisStr=sdf.format(date);
} else if (formatIndex == 20 || formatIndex == 32 || formatIndex==183 || (200<=formatIndex && formatIndex<=209)) {//时间
sdf = new SimpleDateFormat("HH:mm");
Date date = org.apache.poi.ss.usermodel.DateUtil.getJavaDate(Double.parseDouble(n));
thisStr = sdf.format(date);
}
else{
if(n.contains("E")){
String[] split = n.split("\\+");
String e = split[0].replaceAll("E|e", "");
thisStr=e.replace(".","");
}else {
thisStr = n;
}
}
break;
default:
thisStr = "(TODO: Unexpected type: " + nextDataType + ")";
break;
}
if (lastColumnNumber == -1) {
lastColumnNumber = 0;
}
if (thisStr == null || "".equals(isCellNull)) {
isCellNull = true;
}
record[thisColumn] = thisStr;
if (thisColumn > -1)
lastColumnNumber = thisColumn;
} else if ("row".equals(name)) {
// Print out any missing commas if needed
if (minColumnCount > 0) {
// Columns are 0 based
if (lastColumnNumber == -1) {
lastColumnNumber = 0;
}
if(record!=null &&record.length!=0){
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;
}
public void characters(char[] ch, int start, int length)
throws SAXException {
if (vIsOpen)
value.append(ch, start, length);
}
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;
}
}
저장해둔 핸들러 rows의 데이터를 받아와서 처리
FileInputStream fis= new FileInputStream(fullFilePath);
OPCPackage opc = null;
opc = OPCPackage.open(fis);
XSSFReader xssfReader = null;
xssfReader = new XSSFReader(opc);
SharedStringsTable sst = xssfReader.getSharedStringsTable();
XMLReader parser = fetchSheetParser(sst);
XSSFReader.SheetIterator itr = (SheetIterator) xssfReader.getSheetsData();
StylesTable styles = xssfReader.getStylesTable();
ReadOnlySharedStringsTable strings = new ReadOnlySharedStringsTable(opc);
//MyHandler handler = new MyHandler(styles, sst, minColumns);
MyHandler handler = new MyHandler(styles,sst,70);
while(itr.hasNext()){
InputStream sheetStream = itr.next();
String shtName = itr.getSheetName();
if(shtName.equals("리스트")){
InputSource sheetSource = new InputSource(sheetStream);
SAXParserFactory saxFactory = SAXParserFactory.newInstance();
SAXParser saxParser = null;;
saxParser = saxFactory.newSAXParser();
parser.setContentHandler(handler);
//SheetHandler sheetListHanler = new SheetHandler(sst,styles);
//saxParser.parse(sheetSource, sheetListHanler);
parser.parse(sheetSource);
sheetStream.close();
}
}
// List<NewVO> list = inputModVo(dataList);
List<NewVO> list = new ArrayList<NewVO>();
List<String[]> dataList = handler.getRows();
'Java' 카테고리의 다른 글
| Read BLOBs data from database (0) | 2016.11.14 |
|---|---|
| Insert an Image (0) | 2016.11.14 |
| JAVA SPRING + MYBATIS + ORACLE TXT 파일 BLOB 형태로 DB에 INSERT (0) | 2016.11.01 |
| java 배열 내 문자열 확인 (0) | 2016.10.04 |
| 대용량 엑셀파일 업로드 excel upload (4) | 2016.09.22 |
