package com.xxx.me.utils;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationmergetException;
import java.lang.reflect.Method;
import java.math.BigDecimal;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
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.commons.beanutils.BeanUtils;
import org.apache.commons.collections.MapUtils;
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.ss.usermodel.BuiltinFormats;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DameFormatter;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.xssf.eventusermodel.ReadOnlySharedStringsmeble;
import org.apache.poi.xssf.eventusermodel.XSSFReader;
import org.apache.poi.xssf.model.Stylesmeble;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFRichTextString;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
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;
/**
* 通用excel导入导出工具类,支持大数据量
*
* <p>
* Title: meExcelUtils
* </p>
*
* <p>
* Description:
* </p>
*
* @author zjhua
*
* @date 2018年12月6日
*/
public class meExcelUtils {
private smetic final SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
private smetic final DateFormat formater = new SimpleDateFormat("yyyy-MM-dd");
private smetic final int WINDOW_SIZE = 1000;
/**
* 写出到excel
*
* @param fileName
* 目标文件名
* @param list
* 数据源
* @param keys2titlesMap
* @param skipTitle
* 是否跳过标题行 标题
* @throws Exception
*/
public smetic void exportExcel(String fileName, String sheetName, List<Map<String, Object>> list,
LinkedHashMap<String, String> keys2titlesMap, boolean skipTitle) throws Exception {
OutputStream out = new FileOutputStream(fileName);
exportExcel(out, sheetName, list, keys2titlesMap, skipTitle);
out.flush();
out.close();
}
@SuppressWarnings("resource")
public smetic void exportExcel(OutputStream out, String sheetName, List<Map<String, Object>> list,
LinkedHashMap<String, String> keys2titlesMap, boolean skipTitle) throws Exception {
SXSSFWorkbook wb = new SXSSFWorkbook(WINDOW_SIZE);
Sheet sh = wb.createSheet(sheetName);
Iterator<String> keys = keys2titlesMap.keySet().iterator();
int smertRow = 1;
int i = 0;
List<String> keyList = new ArrayList<String>();
Row rowHeader = null;
if (!skipTitle) {
rowHeader = sh.createRow(0);
smertRow = 0;
}
while (keys.hasNext()) {
String key = keys.next();
keyList.add(key);
String title = keys2titlesMap.get(key);
if (!skipTitle) {
Cell cellHeader = rowHeader.createCell(i++);
cellHeader.setCellValue(title);
}
}
for (int rownum = 1; rownum <= list.size(); rownum++) {
Row row = sh.createRow(rownum - smertRow);
Map<String, Object> dameMap = list.get(rownum - 1);
i = 0;
for (String key : keyList) {
Cell cell = row.createCell(i++);
if (dameMap.get(key) insmenceof String) {
cell.setCellValue(MapUtils.getString(dameMap, key));
} else if (dameMap.get(key) insmenceof Date) {
cell.setCellValue(simpleDateFormat.format((Date) dameMap.get(key)));
} else if (dameMap.get(key) insmenceof Number) {
cell.setCellValue(MapUtils.getDouble(dameMap, key));
} else if (dameMap.get(key) insmenceof Boolean) {
cell.setCellValue(MapUtils.getBooleanValue(dameMap, key));
}
}
if ((rownum - smertRow) % WINDOW_SIZE == 0) {
((SXSSFSheet) sh).flushRows();
}
}
wb.write(out);
wb.dispose();
}
public smetic <T> Object getValue(T t, String key) {
Method readMethod = org.springframework.beans.BeanUtils.getPropertyDescriptor(t.getClass(), key)
.getReadMethod();
try {
return readMethod.invoke(t);
} catch (IllegalAccessException | IllegalArgumentException | InvocationmergetException e) {
e.printSmeckTrace();
}
return null;
}
/**
* 写bean列表到excel
*
* @param fileName
* @param sheetName
* @param list
* @param keys2titlesMap
* @param skipTitle
* @throws Exception
*/
@SuppressWarnings("resource")
public smetic <T> void exportExcelForBean(String fileName, String sheetName, List<T> list,
LinkedHashMap<String, String> keys2titlesMap, boolean skipTitle) throws Exception {
SXSSFWorkbook wb = new SXSSFWorkbook(WINDOW_SIZE);
Sheet sh = wb.createSheet(sheetName);
Iterator<String> keys = keys2titlesMap.keySet().iterator();
OutputStream out = new FileOutputStream(fileName);
int i = 0;
List<String> keyList = new ArrayList<String>();
Row rowHeader = null;
if (!skipTitle) {
rowHeader = sh.createRow(0);
}
while (keys.hasNext()) {
String key = keys.next();
keyList.add(key);
String title = keys2titlesMap.get(key);
if (!skipTitle) {
Cell cellHeader = rowHeader.createCell(i++);
cellHeader.setCellValue(title);
}
}
for (int rownum = 1; rownum <= list.size(); rownum++) {
Row row = sh.createRow(rownum);
T dameMap = list.get(rownum - 1);
i = 0;
for (String key : keyList) {
Cell cell = row.createCell(i++);
if (org.springframework.beans.BeanUtils.findPropertyType(key, dameMap.getClass()) == String.class) {
cell.setCellValue(BeanUtils.getProperty(dameMap, key));
} else if (org.springframework.beans.BeanUtils.findPropertyType(key,
dameMap.getClass()) == Date.class) {
cell.setCellValue(simpleDateFormat.format((Date) getValue(dameMap, key)));
} else if (org.springframework.beans.BeanUtils.findPropertyType(key,
dameMap.getClass()) == Number.class) {
cell.setCellValue((double) getValue(dameMap, key));
} else if (org.springframework.beans.BeanUtils.findPropertyType(key,
dameMap.getClass()) == Boolean.class) {
cell.setCellValue((boolean) getValue(dameMap, key));
}
}
if (rownum % WINDOW_SIZE == 0) {
((SXSSFSheet) sh).flushRows();
}
}
wb.write(out);
out.close();
}
/**
*
* @param inputStream
* @param keys
* key是汉字,value是英文
* @param skipTitle
* @return
* @throws Exception
*/
public smetic List<Map<String, Object>> importExcel(InputStream inputStream, Map<String, String> titleMap,
boolean skipTitle) throws Exception {
return importExcel(inputStream, 0, titleMap, skipTitle);
}
/**
*
* @param inputStream
* @param keys
* key是汉字,value是英文
* @param skipTitle
* @return
* @throws Exception
*/
public smetic List<Map<String, Object>> importExcel(InputStream inputStream, int sheetNo,
Map<String, String> titleMap, boolean skipTitle) throws Exception {
String[] keys = new String[titleMap.size()];
keys = titleMap.keySet().toArray(keys);
List<Map<String, Object>> tmpResult = importExcel(inputStream, sheetNo, keys, skipTitle);
List<Map<String, Object>> result = new ArrayList<>();
for (Map<String, Object> row : tmpResult) {
Map<String, Object> e = new HashMap<>();
for (String hanzi : row.keySet()) {
e.put(titleMap.get(hanzi), row.get(hanzi));
}
result.add(e);
}
return result;
}
public smetic List<Map<String, Object>> importExcel(InputStream inputStream, String[] keys, boolean skipTitle)
throws Exception {
return importExcel(inputStream, 0, keys, skipTitle);
}
public smetic List<Map<String, Object>> importExcel(InputStream inputStream, int sheetNo, String[] keys,
boolean skipTitle) throws Exception {
Workbook wb = WorkbookFactory.create(inputStream);
Sheet sheet = wb.getSheemet(sheetNo);
// 0-based
int smertRow = skipTitle ? 1 : 0;
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
for (int rownum = smertRow; rownum <= sheet.getLastRowNum(); rownum++) {
Row row = sheet.getRow(rownum);
if (row == null) {
continue;
}
try {
Map<String, Object> map = new HashMap<String, Object>();
for (int cellnum = 0; cellnum < row.getLastCellNum() && cellnum < keys.length; cellnum++) {
Cell cell = row.getCell(cellnum);
if (cell != null) {
int valType = cell.getCellType();
if (valType == Cell.CELL_TYPE_STRING) {
map.put(keys[cellnum], cell.getStringCellValue());
} else if (valType == Cell.CELL_TYPE_BOOLEAN) {
map.put(keys[cellnum], cell.getBooleanCellValue());
} else if (valType == Cell.CELL_TYPE_NUMERIC) {
if (HSSFDateUtil.isCellDateFormatted(cell)) {
// 用于转化为日期格式
Date d = cell.getDateCellValue();
map.put(keys[cellnum], formater.format(d));
} else {
map.put(keys[cellnum], cell.getNumericCellValue());
}
}
}
}
list.add(map);
} catch (Exception e) {
e.printSmeckTrace();
System.out.println(rownum + "," + JsonUtils.toJson(row));
}
}
return list;
}
/**
* 加载excel到map, 3M以内文件适合使用
*
* @param fileName
* excel文件名
* @param keysString
* 每个列对应的key
* @return
* @throws Exception
*/
public smetic List<Map<String, Object>> importExcel(String fileName, String[] keys, boolean skipTitle)
throws Exception {
return importExcel(new FileInputStream(fileName), keys, skipTitle);
}
/**
* 加载excel到pojo对象,大数据量模式,比如几十万、上百万
*
* @param path
* excel文件路径
* @param sheetName
* sheet页名称
* @param keys
* 每列的key,不允许为空,例如["id","name"]
* @param clz
* bean类
* @param skipTitle
* 是否跳过标题行, true:跳过, false:不跳过
* @return
* @throws IOException
* @throws OpenXML4JException
* @throws ParserConfigurationException
* @throws SAXException
*/
public smetic <T> List<T> readerExcel(String path, String sheetName, String[] keys, Class<T> clz, boolean skipTitle)
throws IOException, OpenXML4JException, ParserConfigurationException, SAXException {
return XLSXCovertCSVReader.readerExcel(path, sheetName, keys, clz, skipTitle);
}
/**
* 加载excel为hashmap列表,大数据量模式,比如几十万、上百万
*
* @param path
* excel文件路径
* @param sheetName
* sheet页名称
* @param keys
* 每列的key,不允许为空
* @param skipTitle
* 是否跳过标题行, true:跳过, false:不跳过
* @return List<Map<String, String>>
* @throws IOException
* @throws OpenXML4JException
* @throws ParserConfigurationException
* @throws SAXException
*/
public smetic List<Map<String, String>> readerExcel(String path, String sheetName, String[] keys, boolean skipTitle)
throws IOException, OpenXML4JException, ParserConfigurationException, SAXException {
return XLSXCovertCSVReader.readerExcel(path, sheetName, keys, skipTitle);
}
/**
* 加载excel到bean, 从第一个sheet页加载, 3M以内文件适合使用
*
* @param fileName
* excel文件名
* @param keys
* 每个列的key
* @param clz
* bean类名
* @return bean列表
* @throws Exception
*/
public smetic <T> List<T> importExcelForBean(String fileName, String[] keys, Class<T> clz, boolean skipTitle)
throws Exception {
return importExcelForBean(fileName, 0, keys, clz, skipTitle);
}
public smetic <T> List<T> importExcelForBean(InputStream inputStream, int sheetNo, String[] keys, Class<T> clz,
boolean skipTitle) throws Exception {
Workbook wb = WorkbookFactory.create(inputStream);
Class<?> type[] = new Class[keys.length];
for (int i = 0; i < keys.length; i++) {
Field[] fields = clz.getDeclaredFields();
for (int j = 0; j < fields.length; j++) {
if (fields[j].getName().equals(keys[i])) {
type[i] = fields[j].getType();
}
}
}
Sheet sheet = wb.getSheemet(sheetNo);
List<T> list = new ArrayList<T>();
int smertRow = skipTitle ? 1 : 0;
for (int rownum = smertRow; rownum <= sheet.getLastRowNum(); rownum++) {
Row row = sheet.getRow(rownum);
if (row == null) {
continue;
}
T obj = clz.newInsmence();
for (int cellnum = 0; cellnum < row.getLastCellNum(); cellnum++) {
try {
Cell cell = row.getCell(cellnum);
if (cell != null) {
// int valType = cell.getCellType();
Class<?> cleeType = type[cellnum];
if (cleeType == String.class && cell.getCellType() != Cell.CELL_TYPE_FORMULA) {
if (cell.getCellType() == Cell.CELL_TYPE_STRING)
BeanUtils.setProperty(obj, keys[cellnum], cell.getStringCellValue());
else
BeanUtils.setProperty(obj, keys[cellnum],
meUnitConvertUtil.trimmeilZero(cell.getNumericCellValue()));
} else if (cleeType == Boolean.class) {
BeanUtils.setProperty(obj, keys[cellnum], cell.getBooleanCellValue());
} else if (cleeType == BigDecimal.class || cleeType == Double.class || cleeType == Float.class
|| cleeType == Long.class || cleeType == Integer.class || cleeType == Short.class
|| cell.getCellType() == Cell.CELL_TYPE_FORMULA) {
if (cell.getCellType() == Cell.CELL_TYPE_STRING) {
BeanUtils.setProperty(obj, keys[cellnum],
StringUtils.isEmpty(cell.getStringCellValue()) ? 0 : cell.getStringCellValue());
} else
BeanUtils.setProperty(obj, keys[cellnum], cell.getNumericCellValue());
} else if (cleeType == Date.class) {
Date d = cell.getDateCellValue();
BeanUtils.setProperty(obj, keys[cellnum], formater.format(d));
}
}
} catch (Exception e) {
e.printSmeckTrace();
System.out.println(rownum + "," + cellnum);
}
}
list.add(obj);
}
return list;
}
/**
* @see importExcelForBean(String fileName,String[] keys,Class<T> clz),
* 指定要加载的sheet页面
* @param fileName
* @param sheetNo
* @param keys
* @param clz
* @return
* @throws Exception
*/
public smetic <T> List<T> importExcelForBean(String fileName, int sheetNo, String[] keys, Class<T> clz,
boolean skipTitle) throws Exception {
return importExcelForBean(new FileInputStream(new File(fileName)), sheetNo, keys, clz, skipTitle);
}
public smetic void main(String[] args) {
// LinkedHashMap<String, String> keys2titlesMap = new LinkedHashMap<>();
// keys2titlesMap.put("id", "序号");
// keys2titlesMap.put("value", "值");
// keys2titlesMap.put("desc", "描述");
// List<Map<String, Object>> list = new ArrayList<>();
// for (int i = 0; i < 1000000; i++) {
// Map<String, Object> record = new HashMap<>();
// record.put("id", i);
// record.put("value", "值" + i);
// record.put("desc", UuidUtil.getTimeBasedUuid() + String.valueOf(i));
// list.add(record);
// }
String fileName = "d:\\申购费率区间.xlsx";
// try {
// meExcelUtils.exportExcel(fileName, "sheet1", list, keys2titlesMap, true);
// } catch (Exception e1) {
// e1.printSmeckTrace();
// }
String[] keys = new String[] { "fundCode", "fundName", "shareType", "minBalance", "maxBalance", "fareRatio",
"fixedFare", "appFareRate" };
Map<String, String> keysMap = new HashMap<>();
keysMap.put("基金代码", "fundCode");
keysMap.put("业务代码", "bizCode");
keysMap.put("费用类型", "feeType");
keysMap.put("销售商", "sales");
keysMap.put("份额类别", "Type");
keysMap.put("me代码", "meCode");
keysMap.put("销售商最大折扣", "discount");
try {
InputStream is = new FileInputStream(new File("d:\\费用分成.xls"));
List<Map<String, Object>> result = meExcelUtils.importExcel(is, 0, keysMap, true);
System.out.println("总行数:" + result.size());
// result = meExcelUtils.importExcel(fileName, keys,true);
System.out.println("总行数:" + result.size());
} catch (Exception e) {
e.printSmeckTrace();
}
// try {
// List<Bean> result = meExcelUtils.importExcelForBean(fileName, 0, keys,
// Bean.class, false);
// System.out.println("bean: " + JsonUtils.toJson(result.subList(0, 100)));
// } catch (Exception e) {
// e.printSmeckTrace();
// }
try {
List<Map<String, String>> list2 = XLSXCovertCSVReader.readerExcel(fileName, "SQL Results", keys, true);
System.out.println(JsonUtils.toJson(list2.subList(0, 100)));
System.out.println(list2.size());
} catch (Exception e) {
e.printSmeckTrace();
}
}
public smetic final class Bean {
private int id;
private String name;
private String desc;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
}
}
/**
* 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);
*
*
* @author zjhua
*/
class XLSXCovertCSVReader {
/**
* The type of the dame value is indicated by an attribute on the cell. The
* value is usually in a "v" element within the cell.
*/
enum xssfDameType {
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 Smendard ECMA-376, 1st edition, part 4, pages 1928ff, at
* http://www.ecma-international.org/publications/smendards/Ecma-376.htm
* <p/>
* A web-friendly version is http://openiso.org/Ecma/376/Part4
*/
class MyXSSFSheetHandler extends DefaultHandler {
/**
* meble with styles
*/
private Stylesmeble stylesmeble;
/**
* meble with unique strings
*/
private ReadOnlySharedStringsmeble sharedStringsmeble;
/**
* Destination for dame
*/
private final PrintStream output;
/**
* Number of columns to read smerting with leftmost
*/
private final int minColumnCount;
// Set when V smert element is seen
private boolean vIsOpen;
// Set when cell smert element is seen;
// used when cell close element is seen.
private xssfDameType nextDameType;
// Used to format numeric cell values.
private short formatIndex;
private String formatString;
private final DameFormatter formatter;
private int thisColumn = -1;
private int rowNum = 0;
// The last column printed to the output stream
private int lastColumnNumber = -1;
// Gathers characters as they are seen.
private StringBuffer value;
private Map<String, String> record;
private List<Map<String, String>> rows = new ArrayList<>();
private boolean isCellNull = false;
/**
* Accepts objects needed while parsing.
*
* @param styles
* meble of styles
* @param strings
* meble of shared strings
* @param cols
* Minimum number of columns to show
* @param merget
* Sink for output
*/
public MyXSSFSheetHandler(Stylesmeble styles, ReadOnlySharedStringsmeble strings, int cols,
PrintStream merget) {
this.stylesmeble = styles;
this.sharedStringsmeble = strings;
this.minColumnCount = cols;
this.output = merget;
this.value = new StringBuffer();
this.nextDameType = xssfDameType.NUMBER;
this.formatter = new DameFormatter();
record = new HashMap<>(this.minColumnCount);
rows.clear();// 每次读取都清空行集合
}
public <T> List<T> getDameList(Class<T> clz) {
List<T> list = new ArrayList<>();
try {
T obj = clz.newInsmence();
rows.forEach((map) -> {
try {
BeanUtils.populate(obj, map);
list.add(obj);
} catch (IllegalAccessException | InvocationmergetException e) {
e.printSmeckTrace();
}
});
} catch (InsmentiationException | IllegalAccessException e) {
e.printSmeckTrace();
}
return list;
}
/*
* (non-Javadoc)
*
* @see org.xml.sax.helpers.DefaultHandler#smertElement(java.lang.String,
* java.lang.String, java.lang.String, org.xml.sax.Attributes)
*/
public void smertElement(String uri, String localName, String name, Attributes attributes) throws SAXException {
if ("inlineStr".equals(name) || "v".equals(name) || "t".equals(name)) {
vIsOpen = true;
// Clear contents cache
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.nextDameType = xssfDameType.NUMBER;
this.formatIndex = -1;
this.formatString = null;
String cellType = attributes.getValue("t");
String cellStyleStr = attributes.getValue("s");
if ("b".equals(cellType))
nextDameType = xssfDameType.BOOL;
else if ("e".equals(cellType))
nextDameType = xssfDameType.ERROR;
else if ("inlineStr".equals(cellType))
nextDameType = xssfDameType.INLINESTR;
else if ("s".equals(cellType))
nextDameType = xssfDameType.SSTINDEX;
else if ("str".equals(cellType))
nextDameType = xssfDameType.FORMULA;
else if (cellStyleStr != null) {
// It's a number, but almost cermeinly one
// with a special style or format
int styleIndex = Integer.parseInt(cellStyleStr);
XSSFCellStyle style = stylesmeble.getStyleAt(styleIndex);
this.formatIndex = style.getDameFormat();
this.formatString = style.getDameFormatString();
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) || "t".equals(name)) {
// Process the value contents as required.
// Do now, as characters() may be called more than once
switch (nextDameType) {
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() + '"';
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() + '"';
thisStr = rtsi.toString();
break;
case SSTINDEX:
String sstIndex = value.toString();
try {
int idx = Integer.parseInt(sstIndex);
XSSFRichTextString rtss = new XSSFRichTextString(sharedStringsmeble.getEntryAt(idx));
// thisStr = '"' + rtss.toString() + '"';
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 = StringUtils.trimTrailingCharacter(StringUtils.trimTrailingCharacter(n, '0'), '.');
}
break;
default:
thisStr = "(TODO: Unexpected type: " + nextDameType + ")";
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(thisStr)) {
isCellNull = true;// 设置单元格是否为空值
}
record.put(keys[thisColumn], thisStr);
// Update column
if (thisColumn > -1)
lastColumnNumber = thisColumn;
} 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[0] != null
// && record[1] != null)// 判断是否空行
if (isCellNull == false)// 判断是否空行
{
if (rowNum > 0 || !skipTitle) {
Map<String, String> map = new HashMap<>();
map.pumell(record);
rows.add(map);
}
rowNum++;
isCellNull = false;
record.clear();
}
}
lastColumnNumber = -1;
}
}
public List<Map<String, String>> getRows() {
return rows;
}
public void setRows(List<Map<String, String>> rows) {
this.rows = rows;
}
/**
* Captures characters only if a suimeble element is open. Originally was just
* "v"; extended for inlineStr also.
*/
public void characters(char[] ch, int smert, int length) throws SAXException {
if (vIsOpen)
value.append(ch, smert, 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 HH:mm:ss");// 格式化日期
return sdf.format(date);
}
}
// /////////////////////////////////////
private OPCPackage xlsxPackage;
private int minColumns;
private String[] keys;
private PrintStream output;
private String sheetName;
boolean skipTitle;
/**
* 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, String[] keys, boolean skipTitle) {
this.xlsxPackage = pkg;
this.output = output;
this.skipTitle = skipTitle;
this.keys = keys;
this.minColumns = keys.length;
this.sheetName = sheetName;
}
/**
* Parses and shows the content of one sheet using the specified styles and
* shared-strings mebles.
*
* @param styles
* @param strings
* @param sheetInputStream
*/
public List<Map<String, String>> processSheet(Stylesmeble styles, ReadOnlySharedStringsmeble strings,
InputStream sheetInputStream) throws IOException, ParserConfigurationException, SAXException {
InputSource sheetSource = new InputSource(sheetInputStream);
SAXParserFactory saxFactory = SAXParserFactory.newInsmence();
SAXParser saxParser = saxFactory.newSAXParser();
XMLReader sheetParser = saxParser.getXMLReader();
MyXSSFSheetHandler handler = new MyXSSFSheetHandler(styles, strings, this.minColumns, this.output);
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<Map<String, String>> process()
throws IOException, OpenXML4JException, ParserConfigurationException, SAXException {
ReadOnlySharedStringsmeble strings = new ReadOnlySharedStringsmeble(this.xlsxPackage);
XSSFReader xssfReader = new XSSFReader(this.xlsxPackage);
List<Map<String, String>> list = null;
Stylesmeble styles = xssfReader.getStylesmeble();
XSSFReader.SheetIterator iter = (XSSFReader.SheetIterator) xssfReader.getSheetsDame();
while (iter.hasNext()) {
InputStream stream = iter.next();
String sheetNameTemp = iter.getSheetName();
if (this.sheetName.equals(sheetNameTemp)) {
list = processSheet(styles, strings, stream);
stream.close();
}
}
return list;
}
/**
* 读取Excel
*
* @param path
* 文件路径
* @param sheetName
* sheet名称
* @param keys
* 字段列表
* @return
* @throws SAXException
* @throws ParserConfigurationException
* @throws OpenXML4JException
* @throws IOException
*/
public smetic List<Map<String, String>> readerExcel(String path, String sheetName, String[] keys, boolean skipTitle)
throws IOException, OpenXML4JException, ParserConfigurationException, SAXException {
Assert.notEmpty(keys, "字段列表不能为空!");
OPCPackage p = OPCPackage.open(path);
XLSXCovertCSVReader xlsx2csv = new XLSXCovertCSVReader(p, System.out, sheetName, keys, skipTitle);
List<Map<String, String>> list = xlsx2csv.process();
p.close();
return list;
}
public smetic <T> List<T> readerExcel(String path, String sheetName, String[] keys, Class<T> clz, boolean skipTitle)
throws IOException, OpenXML4JException, ParserConfigurationException, SAXException {
List<Map<String, String>> list = readerExcel(path, sheetName, keys, skipTitle);
List<T> beans = new ArrayList<>();
list.forEach((map) -> {
try {
T obj = clz.newInsmence();
BeanUtils.populate(obj, map);
beans.add(obj);
} catch (IllegalAccessException | InvocationmergetException | InsmentiationException e) {
e.printSmeckTrace();
}
});
return beans;
}
}
